|  | dnl === configure.ac --------------------------------------------------------=== | 
|  | dnl                     The LLVM Compiler Infrastructure | 
|  | dnl | 
|  | dnl This file is distributed under the University of Illinois Open Source | 
|  | dnl License. See LICENSE.TXT for details. | 
|  | dnl | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl This is the LLVM configuration script. It is processed by the autoconf | 
|  | dnl program to produce a script named configure. This script contains the | 
|  | dnl configuration checks that LLVM needs in order to support multiple platforms. | 
|  | dnl This file is composed of 10 sections per the recommended organization of | 
|  | dnl autoconf input defined in the autoconf documentation. As this file evolves, | 
|  | dnl please keep the various types of checks within their sections. The sections | 
|  | dnl are as follows: | 
|  | dnl | 
|  | dnl SECTION 1: Initialization & Setup | 
|  | dnl SECTION 2: Architecture, target, and host checks | 
|  | dnl SECTION 3: Command line arguments for the configure script. | 
|  | dnl SECTION 4: Check for programs we need and that they are the right version | 
|  | dnl SECTION 5: Check for libraries | 
|  | dnl SECTION 6: Check for header files | 
|  | dnl SECTION 7: Check for types and structures | 
|  | dnl SECTION 8: Check for specific functions needed | 
|  | dnl SECTION 9: Additional checks, variables, etc. | 
|  | dnl SECTION 10: Specify the output files and generate it | 
|  | dnl | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl=== | 
|  | dnl=== SECTION 1: Initialization & Setup | 
|  | dnl=== | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl Initialize autoconf and define the package name, version number and | 
|  | dnl address for reporting bugs. | 
|  |  | 
|  | AC_INIT([LLVM],[3.7.0svn],[http://llvm.org/bugs/]) | 
|  |  | 
|  | LLVM_VERSION_MAJOR=3 | 
|  | LLVM_VERSION_MINOR=7 | 
|  | LLVM_VERSION_PATCH=0 | 
|  | LLVM_VERSION_SUFFIX=svn | 
|  |  | 
|  | AC_DEFINE_UNQUOTED([LLVM_VERSION_MAJOR], $LLVM_VERSION_MAJOR, [Major version of the LLVM API]) | 
|  | AC_DEFINE_UNQUOTED([LLVM_VERSION_MINOR], $LLVM_VERSION_MINOR, [Minor version of the LLVM API]) | 
|  | AC_DEFINE_UNQUOTED([LLVM_VERSION_PATCH], $LLVM_VERSION_PATCH, [Patch version of the LLVM API]) | 
|  | AC_DEFINE_UNQUOTED([LLVM_VERSION_STRING], "$PACKAGE_VERSION", [LLVM version string]) | 
|  |  | 
|  | AC_SUBST([LLVM_VERSION_MAJOR]) | 
|  | AC_SUBST([LLVM_VERSION_MINOR]) | 
|  | AC_SUBST([LLVM_VERSION_PATCH]) | 
|  | AC_SUBST([LLVM_VERSION_SUFFIX]) | 
|  |  | 
|  | dnl Provide a copyright substitution and ensure the copyright notice is included | 
|  | dnl in the output of --version option of the generated configure script. | 
|  | AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign."]) | 
|  | AC_COPYRIGHT([Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign.]) | 
|  |  | 
|  | dnl Indicate that we require autoconf 2.60 or later. | 
|  | AC_PREREQ(2.60) | 
|  |  | 
|  | dnl Verify that the source directory is valid. This makes sure that we are | 
|  | dnl configuring LLVM and not some other package (it validates --srcdir argument) | 
|  | AC_CONFIG_SRCDIR([lib/IR/Module.cpp]) | 
|  |  | 
|  | dnl Place all of the extra autoconf files into the config subdirectory. Tell | 
|  | dnl various tools where the m4 autoconf macros are. | 
|  | AC_CONFIG_AUX_DIR([autoconf]) | 
|  |  | 
|  | dnl Quit if the source directory has already been configured. | 
|  | dnl NOTE: This relies upon undocumented autoconf behavior. | 
|  | if test ${srcdir} != "." ; then | 
|  | if test -f ${srcdir}/include/llvm/Config/config.h ; then | 
|  | AC_MSG_ERROR([Already configured in ${srcdir}]) | 
|  | fi | 
|  | fi | 
|  |  | 
|  | dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS, | 
|  | dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc). | 
|  | : ${CFLAGS=} | 
|  | : ${CXXFLAGS=} | 
|  |  | 
|  | dnl We need to check for the compiler up here to avoid anything else | 
|  | dnl starting with a different one. | 
|  | AC_PROG_CC(clang gcc) | 
|  | AC_PROG_CXX(clang++ g++) | 
|  | AC_PROG_CPP | 
|  |  | 
|  | dnl If CXX is Clang, check that it can find and parse C++ standard library | 
|  | dnl headers. | 
|  | if test "$CXX" = "clang++" ; then | 
|  | AC_MSG_CHECKING([whether clang works]) | 
|  | AC_LANG_PUSH([C++]) | 
|  | dnl Note that space between 'include' and '(' is required.  There's a broken | 
|  | dnl regex in aclocal that otherwise will think that we call m4's include | 
|  | dnl builtin. | 
|  | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits> | 
|  | #if __has_include (<cxxabi.h>) | 
|  | #include <cxxabi.h> | 
|  | #endif | 
|  | #if __has_include (<unwind.h>) | 
|  | #include <unwind.h> | 
|  | #endif | 
|  | ]])], | 
|  | [ | 
|  | AC_MSG_RESULT([yes]) | 
|  | ], | 
|  | [ | 
|  | AC_MSG_RESULT([no]) | 
|  | AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers.  Rerun with CC=c-compiler CXX=c++-compiler ./configure ...]) | 
|  | ]) | 
|  | AC_LANG_POP([C++]) | 
|  | fi | 
|  |  | 
|  | dnl Set up variables that track whether the host compiler is GCC or Clang where | 
|  | dnl we can effectively sanity check them. We don't try to sanity check all the | 
|  | dnl other possible compilers. | 
|  | AC_MSG_CHECKING([whether GCC or Clang is our host compiler]) | 
|  | AC_LANG_PUSH([C++]) | 
|  | llvm_cv_cxx_compiler=unknown | 
|  | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__ | 
|  | #error | 
|  | #endif | 
|  | ]])], | 
|  | llvm_cv_cxx_compiler=clang, | 
|  | [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __GNUC__ | 
|  | #error | 
|  | #endif | 
|  | ]])], | 
|  | llvm_cv_cxx_compiler=gcc, [])]) | 
|  | AC_LANG_POP([C++]) | 
|  | AC_MSG_RESULT([${llvm_cv_cxx_compiler}]) | 
|  |  | 
|  | dnl Configure all of the projects present in our source tree. While we could | 
|  | dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a | 
|  | dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated. | 
|  | dnl Instead we match on the known projects. | 
|  |  | 
|  | dnl | 
|  | dnl One tricky part of doing this is that some projects depend upon other | 
|  | dnl projects.  For example, several projects rely upon the LLVM test suite. | 
|  | dnl We want to configure those projects first so that their object trees are | 
|  | dnl created before running the configure scripts of projects that depend upon | 
|  | dnl them. | 
|  | dnl | 
|  |  | 
|  | dnl Several projects use the LLVM test suite, so configure it next. | 
|  | if test -d ${srcdir}/projects/test-suite ; then | 
|  | AC_CONFIG_SUBDIRS([projects/test-suite]) | 
|  | fi | 
|  |  | 
|  | dnl llvm-test is the old name of the test-suite, kept here for backwards | 
|  | dnl compatibility | 
|  | if test -d ${srcdir}/projects/llvm-test ; then | 
|  | AC_CONFIG_SUBDIRS([projects/llvm-test]) | 
|  | fi | 
|  |  | 
|  | dnl Some projects use poolalloc; configure that next | 
|  | if test -d ${srcdir}/projects/poolalloc ; then | 
|  | AC_CONFIG_SUBDIRS([projects/poolalloc]) | 
|  | fi | 
|  |  | 
|  | if test -d ${srcdir}/projects/llvm-poolalloc ; then | 
|  | AC_CONFIG_SUBDIRS([projects/llvm-poolalloc]) | 
|  | fi | 
|  |  | 
|  | dnl Check for all other projects | 
|  | for i in `ls ${srcdir}/projects` | 
|  | do | 
|  | if test -d ${srcdir}/projects/${i} ; then | 
|  | case ${i} in | 
|  | safecode)     AC_CONFIG_SUBDIRS([projects/safecode]) ;; | 
|  | compiler-rt)       ;; | 
|  | test-suite)     ;; | 
|  | llvm-test)      ;; | 
|  | poolalloc)      ;; | 
|  | llvm-poolalloc) ;; | 
|  | *) | 
|  | AC_MSG_WARN([Unknown project (${i}) won't be configured automatically]) | 
|  | ;; | 
|  | esac | 
|  | fi | 
|  | done | 
|  |  | 
|  | dnl Disable the build of polly, even if it is checked out into tools/polly. | 
|  | AC_ARG_ENABLE(polly, | 
|  | AS_HELP_STRING([--enable-polly], | 
|  | [Use polly if available (default is YES)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_POLLY,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_POLLY,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_POLLY,[1]) ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  |  | 
|  | dnl Check if polly is checked out into tools/polly and configure it if | 
|  | dnl available. | 
|  | if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then | 
|  | AC_SUBST(LLVM_HAS_POLLY,1) | 
|  | AC_CONFIG_SUBDIRS([tools/polly]) | 
|  | fi | 
|  |  | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl=== | 
|  | dnl=== SECTION 2: Architecture, target, and host checks | 
|  | dnl=== | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  |  | 
|  | dnl Check the target for which we're compiling and the host that will do the | 
|  | dnl compilations. This will tell us which LLVM compiler will be used for | 
|  | dnl compiling SSA into object code. This needs to be done early because | 
|  | dnl following tests depend on it. | 
|  | AC_CANONICAL_TARGET | 
|  |  | 
|  | dnl Determine the platform type and cache its value. This helps us configure | 
|  | dnl the System library to the correct build platform. | 
|  | AC_CACHE_CHECK([type of operating system we're going to host on], | 
|  | [llvm_cv_os_type], | 
|  | [case $host in | 
|  | *-*-aix*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="AIX" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-irix*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="IRIX" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-cygwin*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="Cygwin" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-darwin*) | 
|  | llvm_cv_link_all_option="-Wl,-all_load" | 
|  | llvm_cv_no_link_all_option="-Wl,-noall_load" | 
|  | llvm_cv_os_type="Darwin" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-minix*) | 
|  | llvm_cv_link_all_option="-Wl,-all_load" | 
|  | llvm_cv_no_link_all_option="-Wl,-noall_load" | 
|  | llvm_cv_os_type="Minix" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-freebsd*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="FreeBSD" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-kfreebsd-gnu) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="GNU/kFreeBSD" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-openbsd*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="OpenBSD" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-netbsd*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="NetBSD" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-dragonfly*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="DragonFly" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-hpux*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="HP-UX" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-interix*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="Interix" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-linux*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="Linux" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-gnu*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="GNU" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-solaris*) | 
|  | llvm_cv_link_all_option="-Wl,-z,allextract" | 
|  | llvm_cv_no_link_all_option="-Wl,-z,defaultextract" | 
|  | llvm_cv_os_type="SunOS" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-*-win32*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="Win32" | 
|  | llvm_cv_platform_type="Win32" ;; | 
|  | *-*-mingw*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="MingW" | 
|  | llvm_cv_platform_type="Win32" ;; | 
|  | *-*-haiku*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="Haiku" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-unknown-eabi*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="Freestanding" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *-unknown-elf*) | 
|  | llvm_cv_link_all_option="-Wl,--whole-archive" | 
|  | llvm_cv_no_link_all_option="-Wl,--no-whole-archive" | 
|  | llvm_cv_os_type="Freestanding" | 
|  | llvm_cv_platform_type="Unix" ;; | 
|  | *) | 
|  | llvm_cv_link_all_option="" | 
|  | llvm_cv_no_link_all_option="" | 
|  | llvm_cv_os_type="Unknown" | 
|  | llvm_cv_platform_type="Unknown" ;; | 
|  | esac]) | 
|  |  | 
|  | AC_CACHE_CHECK([type of operating system we're going to target], | 
|  | [llvm_cv_target_os_type], | 
|  | [case $target in | 
|  | *-*-aix*) | 
|  | llvm_cv_target_os_type="AIX" ;; | 
|  | *-*-irix*) | 
|  | llvm_cv_target_os_type="IRIX" ;; | 
|  | *-*-cygwin*) | 
|  | llvm_cv_target_os_type="Cygwin" ;; | 
|  | *-*-darwin*) | 
|  | llvm_cv_target_os_type="Darwin" ;; | 
|  | *-*-minix*) | 
|  | llvm_cv_target_os_type="Minix" ;; | 
|  | *-*-freebsd*) | 
|  | llvm_cv_target_os_type="FreeBSD" ;; | 
|  | *-*-kfreebsd-gnu) | 
|  | llvm_cv_target_os_type="GNU/kFreeBSD" ;; | 
|  | *-*-openbsd*) | 
|  | llvm_cv_target_os_type="OpenBSD" ;; | 
|  | *-*-netbsd*) | 
|  | llvm_cv_target_os_type="NetBSD" ;; | 
|  | *-*-dragonfly*) | 
|  | llvm_cv_target_os_type="DragonFly" ;; | 
|  | *-*-hpux*) | 
|  | llvm_cv_target_os_type="HP-UX" ;; | 
|  | *-*-interix*) | 
|  | llvm_cv_target_os_type="Interix" ;; | 
|  | *-*-linux*) | 
|  | llvm_cv_target_os_type="Linux" ;; | 
|  | *-*-gnu*) | 
|  | llvm_cv_target_os_type="GNU" ;; | 
|  | *-*-solaris*) | 
|  | llvm_cv_target_os_type="SunOS" ;; | 
|  | *-*-win32*) | 
|  | llvm_cv_target_os_type="Win32" ;; | 
|  | *-*-mingw*) | 
|  | llvm_cv_target_os_type="MingW" ;; | 
|  | *-*-haiku*) | 
|  | llvm_cv_target_os_type="Haiku" ;; | 
|  | *-*-rtems*) | 
|  | llvm_cv_target_os_type="RTEMS" ;; | 
|  | *-*-nacl*) | 
|  | llvm_cv_target_os_type="NativeClient" ;; | 
|  | *-unknown-eabi*) | 
|  | llvm_cv_target_os_type="Freestanding" ;; | 
|  | *-*-ps4) | 
|  | llvm_cv_target_os_type="PS4" ;; | 
|  | *) | 
|  | llvm_cv_target_os_type="Unknown" ;; | 
|  | esac]) | 
|  |  | 
|  | dnl Make sure we aren't attempting to configure for an unknown system | 
|  | if test "$llvm_cv_os_type" = "Unknown" ; then | 
|  | AC_MSG_ERROR([Operating system is unknown, configure can't continue]) | 
|  | fi | 
|  |  | 
|  | dnl Set the "OS" Makefile variable based on the platform type so the | 
|  | dnl makefile can configure itself to specific build hosts | 
|  | AC_SUBST(OS,$llvm_cv_os_type) | 
|  | AC_SUBST(HOST_OS,$llvm_cv_os_type) | 
|  | AC_SUBST(TARGET_OS,$llvm_cv_target_os_type) | 
|  |  | 
|  | dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform | 
|  | AC_SUBST(LINKALL,$llvm_cv_link_all_option) | 
|  | AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option) | 
|  |  | 
|  | dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type | 
|  | dnl This is used by lib/Support to determine the basic kind of implementation | 
|  | dnl to use. | 
|  | case $llvm_cv_platform_type in | 
|  | Unix) | 
|  | AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform]) | 
|  | AC_SUBST(LLVM_ON_UNIX,[1]) | 
|  | AC_SUBST(LLVM_ON_WIN32,[0]) | 
|  | ;; | 
|  | Win32) | 
|  | AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform]) | 
|  | AC_SUBST(LLVM_ON_UNIX,[0]) | 
|  | AC_SUBST(LLVM_ON_WIN32,[1]) | 
|  | ;; | 
|  | esac | 
|  |  | 
|  | dnl Determine what our target architecture is and configure accordingly. | 
|  | dnl This will allow Makefiles to make a distinction between the hardware and | 
|  | dnl the OS. | 
|  | AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch], | 
|  | [case $target in | 
|  | i?86-*)                 llvm_cv_target_arch="x86" ;; | 
|  | amd64-* | x86_64-*)     llvm_cv_target_arch="x86_64" ;; | 
|  | sparc*-*)               llvm_cv_target_arch="Sparc" ;; | 
|  | powerpc*-*)             llvm_cv_target_arch="PowerPC" ;; | 
|  | arm64*-*)               llvm_cv_target_arch="AArch64" ;; | 
|  | arm*-*)                 llvm_cv_target_arch="ARM" ;; | 
|  | aarch64*-*)             llvm_cv_target_arch="AArch64" ;; | 
|  | mips-* | mips64-*)      llvm_cv_target_arch="Mips" ;; | 
|  | mipsel-* | mips64el-*)  llvm_cv_target_arch="Mips" ;; | 
|  | xcore-*)                llvm_cv_target_arch="XCore" ;; | 
|  | msp430-*)               llvm_cv_target_arch="MSP430" ;; | 
|  | hexagon-*)              llvm_cv_target_arch="Hexagon" ;; | 
|  | nvptx-*)                llvm_cv_target_arch="NVPTX" ;; | 
|  | s390x-*)                llvm_cv_target_arch="SystemZ" ;; | 
|  | *)                      llvm_cv_target_arch="Unknown" ;; | 
|  | esac]) | 
|  |  | 
|  | if test "$llvm_cv_target_arch" = "Unknown" ; then | 
|  | AC_MSG_WARN([Configuring LLVM for an unknown target archicture]) | 
|  | fi | 
|  |  | 
|  | dnl Determine the LLVM native architecture for the target | 
|  | case "$llvm_cv_target_arch" in | 
|  | x86)     LLVM_NATIVE_ARCH="X86" ;; | 
|  | x86_64)  LLVM_NATIVE_ARCH="X86" ;; | 
|  | *)       LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;; | 
|  | esac | 
|  |  | 
|  | dnl Define a substitution, ARCH, for the target architecture | 
|  | AC_SUBST(ARCH,$llvm_cv_target_arch) | 
|  | AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH) | 
|  |  | 
|  | dnl Determine what our host architecture. | 
|  | dnl This will allow MCJIT regress tests runs only for supported | 
|  | dnl platforms. | 
|  | case $host in | 
|  | i?86-*)                 host_arch="x86" ;; | 
|  | amd64-* | x86_64-*)     host_arch="x86_64" ;; | 
|  | sparc*-*)               host_arch="Sparc" ;; | 
|  | powerpc*-*)             host_arch="PowerPC" ;; | 
|  | arm64*-*)               host_arch="AArch64" ;; | 
|  | arm*-*)                 host_arch="ARM" ;; | 
|  | aarch64*-*)             host_arch="AArch64" ;; | 
|  | mips-* | mips64-*)      host_arch="Mips" ;; | 
|  | mipsel-* | mips64el-*)  host_arch="Mips" ;; | 
|  | xcore-*)                host_arch="XCore" ;; | 
|  | msp430-*)               host_arch="MSP430" ;; | 
|  | hexagon-*)              host_arch="Hexagon" ;; | 
|  | s390x-*)                host_arch="SystemZ" ;; | 
|  | *)                      host_arch="Unknown" ;; | 
|  | esac | 
|  |  | 
|  | if test "$host_arch" = "Unknown" ; then | 
|  | AC_MSG_WARN([Configuring LLVM for an unknown host archicture]) | 
|  | fi | 
|  |  | 
|  | AC_SUBST(HOST_ARCH,$host_arch) | 
|  |  | 
|  | dnl Check for build platform executable suffix if we're cross-compiling | 
|  | if test "$cross_compiling" = yes; then | 
|  | AC_SUBST(LLVM_CROSS_COMPILING, [1]) | 
|  | AC_BUILD_EXEEXT | 
|  | ac_build_prefix=${build_alias}- | 
|  | AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++) | 
|  | if test -z "$BUILD_CXX"; then | 
|  | AC_CHECK_PROG(BUILD_CXX, g++, g++) | 
|  | if test -z "$BUILD_CXX"; then | 
|  | AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++) | 
|  | fi | 
|  | fi | 
|  | else | 
|  | AC_SUBST(LLVM_CROSS_COMPILING, [0]) | 
|  | fi | 
|  |  | 
|  | dnl Check to see if there's a .svn or .git directory indicating that this | 
|  | dnl build is being done from a checkout. This sets up several defaults for | 
|  | dnl the command line switches. When we build with a checkout directory, | 
|  | dnl we get a debug with assertions turned on. Without, we assume a source | 
|  | dnl release and we get an optimized build without assertions. | 
|  | dnl See --enable-optimized and --enable-assertions below | 
|  | if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then | 
|  | cvsbuild="yes" | 
|  | optimize="no" | 
|  | AC_SUBST(CVSBUILD,[[CVSBUILD=1]]) | 
|  | else | 
|  | cvsbuild="no" | 
|  | optimize="yes" | 
|  | fi | 
|  |  | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl=== | 
|  | dnl=== SECTION 3: Command line arguments for the configure script. | 
|  | dnl=== | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  |  | 
|  | dnl --enable-libcpp : check whether or not to use libc++ on the command line | 
|  | AC_ARG_ENABLE(libcpp, | 
|  | AS_HELP_STRING([--enable-libcpp], | 
|  | [Use libc++ if available (default is NO)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_LIBCPP,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_LIBCPP,[0]);; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl Check both GCC and Clang for sufficiently modern versions. These checks can | 
|  | dnl be bypassed by passing a flag if necessary on a platform. We have to do | 
|  | dnl these checks here so that we have the configuration of the standard C++ | 
|  | dnl library finished. | 
|  | AC_ARG_ENABLE(compiler-version-checks, | 
|  | AS_HELP_STRING([--enable-compiler-version-checks], | 
|  | [Check the version of the host compiler (default is YES)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | no) | 
|  | ;; | 
|  | yes|default) | 
|  | AC_LANG_PUSH([C++]) | 
|  | case "$llvm_cv_cxx_compiler" in | 
|  | clang) | 
|  | AC_MSG_CHECKING([whether Clang is new enough]) | 
|  | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ | 
|  | #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1) | 
|  | #error This version of Clang is too old to build LLVM | 
|  | #endif | 
|  | ]])], | 
|  | [AC_MSG_RESULT([yes])], | 
|  | [AC_MSG_RESULT([no]) | 
|  | AC_MSG_ERROR([ | 
|  | The selected Clang compiler is not new enough to build LLVM. Please upgrade to | 
|  | Clang 3.1. You may pass --disable-compiler-version-checks to configure to | 
|  | bypass these sanity checks.])]) | 
|  |  | 
|  | dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors | 
|  | dnl are sometimes deeply confusing though. Here we test for an obvious | 
|  | dnl incomplete feature in 4.6's standard library that was completed in | 
|  | dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set | 
|  | dnl because the enable flags don't actually fix CXXFLAGS, they rely on | 
|  | dnl that happening in the Makefile. | 
|  | if test "$ENABLE_LIBCPP" -eq 0 ; then | 
|  | AC_MSG_CHECKING([whether Clang will select a modern C++ standard library]) | 
|  | llvm_cv_old_cxxflags="$CXXFLAGS" | 
|  | CXXFLAGS="$CXXFLAGS -std=c++0x" | 
|  | AC_LINK_IFELSE([AC_LANG_SOURCE([[ | 
|  | #include <atomic> | 
|  | std::atomic<float> x(0.0f); | 
|  | int main() { return (float)x; } | 
|  | ]])], | 
|  | [AC_MSG_RESULT([yes])], | 
|  | [AC_MSG_RESULT([no]) | 
|  | AC_MSG_ERROR([ | 
|  | We detected a missing feature in the standard C++ library that was known to be | 
|  | missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous | 
|  | C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older | 
|  | than 4.7. You will need to update your system and ensure Clang uses the newer | 
|  | standard library. | 
|  |  | 
|  | If this error is incorrect or you need to force things to work, you may pass | 
|  | '--disable-compiler-version-checks' to configure to bypass this test.])]) | 
|  | CXXFLAGS="$llvm_cv_old_cxxflags" | 
|  | fi | 
|  | ;; | 
|  | gcc) | 
|  | AC_MSG_CHECKING([whether GCC is new enough]) | 
|  | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ | 
|  | #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7) | 
|  | #error This version of GCC is too old to build LLVM | 
|  | #endif | 
|  | ]])], | 
|  | [AC_MSG_RESULT([yes])], | 
|  | [AC_MSG_RESULT([no]) | 
|  | AC_MSG_ERROR([ | 
|  | The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade | 
|  | to GCC 4.7. You may pass --disable-compiler-version-checks to configure to | 
|  | bypass these sanity checks.])]) | 
|  | ;; | 
|  | unknown) | 
|  | ;; | 
|  | esac | 
|  | AC_LANG_POP([C++]) | 
|  | ;; | 
|  | *) | 
|  | AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"]) | 
|  | ;; | 
|  | esac | 
|  |  | 
|  | dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line | 
|  | AC_ARG_ENABLE(cxx1y, | 
|  | AS_HELP_STRING([--enable-cxx1y], | 
|  | [Use c++1y if available (default is NO)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_CXX1Y,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_CXX1Y,[0]);; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command | 
|  | dnl line | 
|  | AC_ARG_ENABLE(split-dwarf, | 
|  | AS_HELP_STRING([--enable-split-dwarf], | 
|  | [Use split-dwarf if available (default is NO)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl --enable-clang-arcmt: check whether to enable clang arcmt | 
|  | clang_arcmt="yes" | 
|  | AC_ARG_ENABLE(clang-arcmt, | 
|  | AS_HELP_STRING([--enable-clang-arcmt], | 
|  | [Enable building of clang ARCMT (default is YES)]), | 
|  | clang_arcmt="$enableval", | 
|  | enableval="yes") | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl --enable-clang-plugin-support: check whether to enable plugins in clang | 
|  | clang_plugin_support="yes" | 
|  | AC_ARG_ENABLE(clang-plugin-support, | 
|  | AS_HELP_STRING([--enable-clang-plugin-support], | 
|  | [Enable plugin support in clang (default is YES)]), | 
|  | clang_plugin_support="$enableval", | 
|  | enableval="yes") | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;; | 
|  | no)  AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;; | 
|  | default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl --enable-clang-static-analyzer: check whether to enable static-analyzer | 
|  | clang_static_analyzer="yes" | 
|  | AC_ARG_ENABLE(clang-static-analyzer, | 
|  | AS_HELP_STRING([--enable-clang-static-analyzer], | 
|  | [Enable building of clang Static Analyzer (default is YES)]), | 
|  | clang_static_analyzer="$enableval", | 
|  | enableval="yes") | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;; | 
|  | no) | 
|  | if test ${clang_arcmt} != "no" ; then | 
|  | AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.]) | 
|  | fi | 
|  | AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0]) | 
|  | ;; | 
|  | default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl --enable-optimized : check whether they want to do an optimized build: | 
|  | AC_ARG_ENABLE(optimized, AS_HELP_STRING( | 
|  | --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize) | 
|  | if test ${enableval} = "no" ; then | 
|  | AC_SUBST(ENABLE_OPTIMIZED,[[]]) | 
|  | else | 
|  | AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]]) | 
|  | fi | 
|  |  | 
|  | dnl --enable-profiling : check whether they want to do a profile build: | 
|  | AC_ARG_ENABLE(profiling, AS_HELP_STRING( | 
|  | --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no") | 
|  | if test ${enableval} = "no" ; then | 
|  | AC_SUBST(ENABLE_PROFILING,[[]]) | 
|  | else | 
|  | AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]]) | 
|  | fi | 
|  |  | 
|  | dnl --enable-assertions : check whether they want to turn on assertions or not: | 
|  | AC_ARG_ENABLE(assertions,AS_HELP_STRING( | 
|  | --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes") | 
|  | if test ${enableval} = "yes" ; then | 
|  | AC_SUBST(DISABLE_ASSERTIONS,[[]]) | 
|  | else | 
|  | AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]]) | 
|  | fi | 
|  |  | 
|  | dnl --enable-werror : check whether we want Werror on by default | 
|  | AC_ARG_ENABLE(werror,AS_HELP_STRING( | 
|  | --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no") | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_WERROR,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_WERROR,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_WERROR,[0]);; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks: | 
|  | AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING( | 
|  | --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no") | 
|  | if test ${enableval} = "yes" ; then | 
|  | AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]]) | 
|  | AC_SUBST(EXPENSIVE_CHECKS,[[yes]]) | 
|  | else | 
|  | AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]]) | 
|  | AC_SUBST(EXPENSIVE_CHECKS,[[no]]) | 
|  | fi | 
|  |  | 
|  | dnl --enable-debug-runtime : should runtime libraries have debug symbols? | 
|  | AC_ARG_ENABLE(debug-runtime, | 
|  | AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no) | 
|  | if test ${enableval} = "no" ; then | 
|  | AC_SUBST(DEBUG_RUNTIME,[[]]) | 
|  | else | 
|  | AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]]) | 
|  | fi | 
|  |  | 
|  | dnl --enable-debug-symbols : should even optimized compiler libraries | 
|  | dnl have debug symbols? | 
|  | AC_ARG_ENABLE(debug-symbols, | 
|  | AS_HELP_STRING(--enable-debug-symbols,[Build compiler with debug symbols (default is NO if optimization is on and YES if it's off)]),,enableval=no) | 
|  | if test ${enableval} = "no" ; then | 
|  | AC_SUBST(DEBUG_SYMBOLS,[[]]) | 
|  | else | 
|  | AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]]) | 
|  | fi | 
|  |  | 
|  | dnl --enable-keep-symbols : do not strip installed executables | 
|  | AC_ARG_ENABLE(keep-symbols, | 
|  | AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no) | 
|  | if test ${enableval} = "no" ; then | 
|  | AC_SUBST(KEEP_SYMBOLS,[[]]) | 
|  | else | 
|  | AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]]) | 
|  | fi | 
|  |  | 
|  | dnl --enable-jit: check whether they want to enable the jit | 
|  | AC_ARG_ENABLE(jit, | 
|  | AS_HELP_STRING(--enable-jit, | 
|  | [Enable Just In Time Compiling (default is YES)]),, | 
|  | enableval=default) | 
|  | if test ${enableval} = "no" | 
|  | then | 
|  | AC_SUBST(JIT,[[]]) | 
|  | else | 
|  | case "$llvm_cv_target_arch" in | 
|  | x86)         AC_SUBST(TARGET_HAS_JIT,1) ;; | 
|  | Sparc)       AC_SUBST(TARGET_HAS_JIT,0) ;; | 
|  | PowerPC)     AC_SUBST(TARGET_HAS_JIT,1) ;; | 
|  | x86_64)      AC_SUBST(TARGET_HAS_JIT,1) ;; | 
|  | ARM)         AC_SUBST(TARGET_HAS_JIT,1) ;; | 
|  | Mips)        AC_SUBST(TARGET_HAS_JIT,1) ;; | 
|  | XCore)       AC_SUBST(TARGET_HAS_JIT,0) ;; | 
|  | MSP430)      AC_SUBST(TARGET_HAS_JIT,0) ;; | 
|  | Hexagon)     AC_SUBST(TARGET_HAS_JIT,0) ;; | 
|  | NVPTX)       AC_SUBST(TARGET_HAS_JIT,0) ;; | 
|  | SystemZ)     AC_SUBST(TARGET_HAS_JIT,1) ;; | 
|  | *)           AC_SUBST(TARGET_HAS_JIT,0) ;; | 
|  | esac | 
|  | fi | 
|  |  | 
|  | TARGETS_WITH_JIT="ARM AArch64 Mips PowerPC SystemZ X86" | 
|  | AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT) | 
|  |  | 
|  | dnl Allow enablement of building and installing docs | 
|  | AC_ARG_ENABLE(docs, | 
|  | AS_HELP_STRING([--enable-docs], | 
|  | [Build documents (default is YES)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_DOCS,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_DOCS,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_DOCS,[1]) ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl Allow enablement of doxygen generated documentation | 
|  | AC_ARG_ENABLE(doxygen, | 
|  | AS_HELP_STRING([--enable-doxygen], | 
|  | [Build doxygen documentation (default is NO)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_DOXYGEN,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl Allow disablement of threads | 
|  | AC_ARG_ENABLE(threads, | 
|  | AS_HELP_STRING([--enable-threads], | 
|  | [Use threads if available (default is YES)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;; | 
|  | no)  AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;; | 
|  | default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;; | 
|  | esac | 
|  | AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS, | 
|  | [Define if threads enabled]) | 
|  |  | 
|  | dnl Allow disablement of pthread.h | 
|  | AC_ARG_ENABLE(pthreads, | 
|  | AS_HELP_STRING([--enable-pthreads], | 
|  | [Use pthreads if available (default is YES)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_PTHREADS,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_PTHREADS,[1]) ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl Allow disablement of zlib | 
|  | AC_ARG_ENABLE(zlib, | 
|  | AS_HELP_STRING([--enable-zlib], | 
|  | [Use zlib for compression/decompression if | 
|  | available (default is YES)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;; | 
|  | no)  AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;; | 
|  | default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;; | 
|  | esac | 
|  | AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB, | 
|  | [Define if zlib is enabled]) | 
|  |  | 
|  | dnl Allow building without position independent code | 
|  | AC_ARG_ENABLE(pic, | 
|  | AS_HELP_STRING([--enable-pic], | 
|  | [Build LLVM with Position Independent Code (default is YES)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_PIC,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_PIC,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_PIC,[1]) ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;; | 
|  | esac | 
|  | AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC, | 
|  | [Define if position independent code is enabled]) | 
|  |  | 
|  | dnl Allow building a shared library and linking tools against it. | 
|  | AC_ARG_ENABLE(shared, | 
|  | AS_HELP_STRING([--enable-shared], | 
|  | [Build a shared library and link tools against it (default is NO)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_SHARED,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_SHARED,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_SHARED,[0]) ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl Allow libstdc++ is embedded in LLVM.dll. | 
|  | AC_ARG_ENABLE(embed-stdcxx, | 
|  | AS_HELP_STRING([--enable-embed-stdcxx], | 
|  | [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;; | 
|  | esac | 
|  |  | 
|  | dnl Enable embedding timestamp information into build. | 
|  | AC_ARG_ENABLE(timestamps, | 
|  | AS_HELP_STRING([--enable-timestamps], | 
|  | [Enable embedding timestamp information in build (default is YES)]),, | 
|  | enableval=default) | 
|  | case "$enableval" in | 
|  | yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;; | 
|  | default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;; | 
|  | esac | 
|  | AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS, | 
|  | [Define if timestamp information (e.g., __DATE__) is allowed]) | 
|  |  | 
|  | dnl Enable support for showing backtraces. | 
|  | AC_ARG_ENABLE(backtraces, AS_HELP_STRING( | 
|  | [--enable-backtraces], | 
|  | [Enable embedding backtraces on crash (default is YES)]), | 
|  | [case "$enableval" in | 
|  | yes) llvm_cv_enable_backtraces="yes" ;; | 
|  | no)  llvm_cv_enable_backtraces="no"  ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;; | 
|  | esac], | 
|  | llvm_cv_enable_backtraces="yes") | 
|  | if test "$llvm_cv_enable_backtraces" = "yes" ; then | 
|  | AC_DEFINE([ENABLE_BACKTRACES],[1], | 
|  | [Define if you want backtraces on crash]) | 
|  | fi | 
|  |  | 
|  | dnl Enable installing platform specific signal handling overrides, for improved | 
|  | dnl CrashRecovery support or interaction with crash reporting software. This | 
|  | dnl support may be inappropriate for some clients embedding LLVM as a library. | 
|  | AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING( | 
|  | [--enable-crash-overrides], | 
|  | [Enable crash handling overrides (default is YES)]), | 
|  | [case "$enableval" in | 
|  | yes) llvm_cv_enable_crash_overrides="yes" ;; | 
|  | no)  llvm_cv_enable_crash_overrides="no"  ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;; | 
|  | esac], | 
|  | llvm_cv_enable_crash_overrides="yes") | 
|  | if test "$llvm_cv_enable_crash_overrides" = "yes" ; then | 
|  | AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1], | 
|  | [Define to enable crash handling overrides]) | 
|  | fi | 
|  |  | 
|  | dnl List all possible targets | 
|  | ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600" | 
|  | AC_SUBST(ALL_TARGETS,$ALL_TARGETS) | 
|  |  | 
|  | dnl Allow specific targets to be specified for building (or not) | 
|  | TARGETS_TO_BUILD="" | 
|  | AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets], | 
|  | [Build specific host targets: all or target1,target2,... Valid targets are: | 
|  | host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon, | 
|  | xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),, | 
|  | enableval=all) | 
|  | if test "$enableval" = host-only ; then | 
|  | enableval=host | 
|  | fi | 
|  | case "$enableval" in | 
|  | all) TARGETS_TO_BUILD="$ALL_TARGETS" ;; | 
|  | *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do | 
|  | case "$a_target" in | 
|  | x86)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;; | 
|  | x86_64)   TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;; | 
|  | sparc)    TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;; | 
|  | powerpc)  TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;; | 
|  | aarch64)  TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;; | 
|  | arm64)    TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;; | 
|  | arm)      TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;; | 
|  | mips)     TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;; | 
|  | mipsel)   TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;; | 
|  | mips64)   TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;; | 
|  | mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;; | 
|  | xcore)    TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;; | 
|  | msp430)   TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;; | 
|  | cpp)      TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;; | 
|  | hexagon)  TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;; | 
|  | nvptx)    TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;; | 
|  | systemz)  TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;; | 
|  | r600)     TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;; | 
|  | host) case "$llvm_cv_target_arch" in | 
|  | x86)         TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;; | 
|  | x86_64)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;; | 
|  | Sparc)       TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;; | 
|  | PowerPC)     TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;; | 
|  | AArch64)     TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;; | 
|  | ARM)         TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;; | 
|  | Mips)        TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;; | 
|  | XCore)       TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;; | 
|  | MSP430)      TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;; | 
|  | Hexagon)     TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;; | 
|  | NVPTX)       TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;; | 
|  | SystemZ)     TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;; | 
|  | *)       AC_MSG_ERROR([Can not set target to build]) ;; | 
|  | esac ;; | 
|  | *) AC_MSG_ERROR([Unrecognized target $a_target]) ;; | 
|  | esac | 
|  | done | 
|  | ;; | 
|  | esac | 
|  |  | 
|  | AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets], | 
|  | [Build experimental host targets: disable or target1,target2,... | 
|  | (default=disable)]),, | 
|  | enableval=disable) | 
|  |  | 
|  | if test ${enableval} != "disable" | 
|  | then | 
|  | TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD" | 
|  | fi | 
|  |  | 
|  | AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD) | 
|  |  | 
|  | dnl Determine whether we are building LLVM support for the native architecture. | 
|  | dnl If so, define LLVM_NATIVE_ARCH to that LLVM target. | 
|  | for a_target in $TARGETS_TO_BUILD; do | 
|  | if test "$a_target" = "$LLVM_NATIVE_ARCH"; then | 
|  | AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH, | 
|  | [LLVM architecture name for the native architecture, if available]) | 
|  | LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target" | 
|  | LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo" | 
|  | LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC" | 
|  | LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter" | 
|  | if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then | 
|  | LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser" | 
|  | fi | 
|  | if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then | 
|  | LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler" | 
|  | fi | 
|  | AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET, | 
|  | [LLVM name for the native Target init function, if available]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO, | 
|  | [LLVM name for the native TargetInfo init function, if available]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC, | 
|  | [LLVM name for the native target MC init function, if available]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER, | 
|  | [LLVM name for the native AsmPrinter init function, if available]) | 
|  | if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then | 
|  | AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER, | 
|  | [LLVM name for the native AsmParser init function, if available]) | 
|  | fi | 
|  | if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then | 
|  | AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER, | 
|  | [LLVM name for the native Disassembler init function, if available]) | 
|  | fi | 
|  | fi | 
|  | done | 
|  |  | 
|  | dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual | 
|  | dnl target feature def files. | 
|  | LLVM_ENUM_TARGETS="" | 
|  | LLVM_ENUM_ASM_PRINTERS="" | 
|  | LLVM_ENUM_ASM_PARSERS="" | 
|  | LLVM_ENUM_DISASSEMBLERS="" | 
|  | for target_to_build in $TARGETS_TO_BUILD; do | 
|  | LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS" | 
|  | if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then | 
|  | LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS"; | 
|  | fi | 
|  | if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then | 
|  | LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS"; | 
|  | fi | 
|  | if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then | 
|  | LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS"; | 
|  | fi | 
|  | done | 
|  | AC_SUBST(LLVM_ENUM_TARGETS) | 
|  | AC_SUBST(LLVM_ENUM_ASM_PRINTERS) | 
|  | AC_SUBST(LLVM_ENUM_ASM_PARSERS) | 
|  | AC_SUBST(LLVM_ENUM_DISASSEMBLERS) | 
|  |  | 
|  | dnl Override the option to use for optimized builds. | 
|  | AC_ARG_WITH(optimize-option, | 
|  | AS_HELP_STRING([--with-optimize-option], | 
|  | [Select the compiler options to use for optimized builds]),, | 
|  | withval=default) | 
|  | AC_MSG_CHECKING([optimization flags]) | 
|  | case "$withval" in | 
|  | default) | 
|  | case "$llvm_cv_os_type" in | 
|  | FreeBSD) optimize_option=-O2 ;; | 
|  | MingW) optimize_option=-O2 ;; | 
|  | *)     optimize_option=-O3 ;; | 
|  | esac ;; | 
|  | *) optimize_option="$withval" ;; | 
|  | esac | 
|  | AC_SUBST(OPTIMIZE_OPTION,$optimize_option) | 
|  | AC_MSG_RESULT([$optimize_option]) | 
|  |  | 
|  | dnl Specify extra build options | 
|  | AC_ARG_WITH(extra-options, | 
|  | AS_HELP_STRING([--with-extra-options], | 
|  | [Specify additional options to compile LLVM with]),, | 
|  | withval=default) | 
|  | case "$withval" in | 
|  | default) EXTRA_OPTIONS= ;; | 
|  | *) EXTRA_OPTIONS=$withval ;; | 
|  | esac | 
|  | AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS) | 
|  |  | 
|  | dnl Specify extra linker build options | 
|  | AC_ARG_WITH(extra-ld-options, | 
|  | AS_HELP_STRING([--with-extra-ld-options], | 
|  | [Specify additional options to link LLVM with]),, | 
|  | withval=default) | 
|  | case "$withval" in | 
|  | default) EXTRA_LD_OPTIONS= ;; | 
|  | *) EXTRA_LD_OPTIONS=$withval ;; | 
|  | esac | 
|  | AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS) | 
|  |  | 
|  | dnl Allow specific bindings to be specified for building (or not) | 
|  | AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings], | 
|  | [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),, | 
|  | enableval=default) | 
|  | BINDINGS_TO_BUILD="" | 
|  | case "$enableval" in | 
|  | yes | default | auto) BINDINGS_TO_BUILD="auto" ;; | 
|  | all ) BINDINGS_TO_BUILD="ocaml" ;; | 
|  | none | no) BINDINGS_TO_BUILD="" ;; | 
|  | *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do | 
|  | case "$a_binding" in | 
|  | ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;; | 
|  | *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;; | 
|  | esac | 
|  | done | 
|  | ;; | 
|  | esac | 
|  |  | 
|  | dnl Allow the ocaml libdir to be overridden. This could go in a configure | 
|  | dnl script for bindings/ocaml/configure, except that its auto value depends on | 
|  | dnl OCAMLC, which is found here to support tests. | 
|  | AC_ARG_WITH([ocaml-libdir], | 
|  | [AS_HELP_STRING([--with-ocaml-libdir], | 
|  | [Specify install location for ocaml bindings (default is stdlib)])], | 
|  | [], | 
|  | [withval=auto]) | 
|  | case "$withval" in | 
|  | auto) with_ocaml_libdir="$withval" ;; | 
|  | /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;; | 
|  | *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;; | 
|  | esac | 
|  |  | 
|  | AC_ARG_WITH(clang-srcdir, | 
|  | AS_HELP_STRING([--with-clang-srcdir], | 
|  | [Directory to the out-of-tree Clang source]),, | 
|  | withval="-") | 
|  | case "$withval" in | 
|  | -) clang_src_root="" ;; | 
|  | /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;; | 
|  | *) clang_src_root="$ac_pwd/$withval" ;; | 
|  | esac | 
|  | AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root]) | 
|  |  | 
|  | AC_ARG_WITH(clang-resource-dir, | 
|  | AS_HELP_STRING([--with-clang-resource-dir], | 
|  | [Relative directory from the Clang binary for resource files]),, | 
|  | withval="") | 
|  | AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval", | 
|  | [Relative directory for resource files]) | 
|  |  | 
|  | AC_ARG_WITH(c-include-dirs, | 
|  | AS_HELP_STRING([--with-c-include-dirs], | 
|  | [Colon separated list of directories clang will search for headers]),, | 
|  | withval="") | 
|  | AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval", | 
|  | [Directories clang will search for headers]) | 
|  |  | 
|  | # Clang normally uses the system c++ headers and libraries. With this option, | 
|  | # clang will use the ones provided by a gcc installation instead. This option should | 
|  | # be passed the same value that was used with --prefix when configuring gcc. | 
|  | AC_ARG_WITH(gcc-toolchain, | 
|  | AS_HELP_STRING([--with-gcc-toolchain], | 
|  | [Directory where gcc is installed.]),, | 
|  | withval="") | 
|  | AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval", | 
|  | [Directory where gcc is installed.]) | 
|  |  | 
|  | AC_ARG_WITH(default-sysroot, | 
|  | AS_HELP_STRING([--with-default-sysroot], | 
|  | [Add --sysroot=<path> to all compiler invocations.]),, | 
|  | withval="") | 
|  | AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval", | 
|  | [Default <path> to all compiler invocations for --sysroot=<path>.]) | 
|  |  | 
|  | dnl Allow linking of LLVM with GPLv3 binutils code. | 
|  | AC_ARG_WITH(binutils-include, | 
|  | AS_HELP_STRING([--with-binutils-include], | 
|  | [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),, | 
|  | withval=default) | 
|  | case "$withval" in | 
|  | default) WITH_BINUTILS_INCDIR=default ;; | 
|  | /* | [[A-Za-z]]:[[\\/]]*)      WITH_BINUTILS_INCDIR=$withval ;; | 
|  | *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;; | 
|  | esac | 
|  | if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then | 
|  | AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR) | 
|  | if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then | 
|  | echo "$WITH_BINUTILS_INCDIR/plugin-api.h" | 
|  | AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]); | 
|  | fi | 
|  | fi | 
|  |  | 
|  | dnl Specify the URL where bug reports should be submitted. | 
|  | AC_ARG_WITH(bug-report-url, | 
|  | AS_HELP_STRING([--with-bug-report-url], | 
|  | [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),, | 
|  | withval="http://llvm.org/bugs/") | 
|  | AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval", | 
|  | [Bug report URL.]) | 
|  |  | 
|  | dnl --enable-terminfo: check whether the user wants to control use of terminfo: | 
|  | AC_ARG_ENABLE(terminfo,AS_HELP_STRING( | 
|  | [--enable-terminfo], | 
|  | [Query the terminfo database if available (default is YES)]), | 
|  | [case "$enableval" in | 
|  | yes) llvm_cv_enable_terminfo="yes" ;; | 
|  | no)  llvm_cv_enable_terminfo="no"  ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;; | 
|  | esac], | 
|  | llvm_cv_enable_terminfo="yes") | 
|  | case "$llvm_cv_enable_terminfo" in | 
|  | yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;; | 
|  | no)  AC_SUBST(ENABLE_TERMINFO,[0]) ;; | 
|  | esac | 
|  |  | 
|  | dnl --enable-libedit: check whether the user wants to turn off libedit. | 
|  | AC_ARG_ENABLE(libedit,AS_HELP_STRING( | 
|  | [--enable-libedit], | 
|  | [Use libedit if available (default is YES)]), | 
|  | [case "$enableval" in | 
|  | yes) llvm_cv_enable_libedit="yes" ;; | 
|  | no)  llvm_cv_enable_libedit="no"  ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;; | 
|  | esac], | 
|  | llvm_cv_enable_libedit="yes") | 
|  |  | 
|  | dnl --enable-libffi : check whether the user wants to turn off libffi: | 
|  | AC_ARG_ENABLE(libffi,AS_HELP_STRING( | 
|  | --enable-libffi,[Check for the presence of libffi (default is NO)]), | 
|  | [case "$enableval" in | 
|  | yes) llvm_cv_enable_libffi="yes" ;; | 
|  | no)  llvm_cv_enable_libffi="no"  ;; | 
|  | *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;; | 
|  | esac], | 
|  | llvm_cv_enable_libffi=no) | 
|  |  | 
|  | AC_ARG_WITH(internal-prefix, | 
|  | AS_HELP_STRING([--with-internal-prefix], | 
|  | [Installation directory for internal files]),, | 
|  | withval="") | 
|  | AC_SUBST(INTERNAL_PREFIX,[$withval]) | 
|  |  | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl=== | 
|  | dnl=== SECTION 4: Check for programs we need and that they are the right version | 
|  | dnl=== | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  |  | 
|  | dnl Check for the tools that the makefiles require | 
|  | AC_CHECK_GNU_MAKE | 
|  | AC_PROG_LN_S | 
|  | AC_PATH_PROG(NM, [nm], [nm]) | 
|  | AC_PATH_PROG(CMP, [cmp], [cmp]) | 
|  | AC_PATH_PROG(CP, [cp], [cp]) | 
|  | AC_PATH_PROG(DATE, [date], [date]) | 
|  | AC_PATH_PROG(FIND, [find], [find]) | 
|  | AC_PATH_PROG(GREP, [grep], [grep]) | 
|  | AC_PATH_PROG(MKDIR,[mkdir],[mkdir]) | 
|  | AC_PATH_PROG(MV,   [mv],   [mv]) | 
|  | AC_PROG_RANLIB | 
|  | AC_CHECK_TOOL(AR, ar, false) | 
|  | AC_PATH_PROG(RM,   [rm],   [rm]) | 
|  | AC_PATH_PROG(SED,  [sed],  [sed]) | 
|  | AC_PATH_PROG(TAR,  [tar],  [gtar]) | 
|  | AC_PATH_PROG(BINPWD,[pwd],  [pwd]) | 
|  |  | 
|  | dnl Looking for misc. graph plotting software | 
|  | AC_PATH_PROG(DOT, [dot], [echo dot]) | 
|  | if test "$DOT" != "echo dot" ; then | 
|  | AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available]) | 
|  | dnl If we're targeting for mingw we should emit windows paths, not msys | 
|  | if test "$llvm_cv_os_type" = "MingW" ; then | 
|  | DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' ` | 
|  | fi | 
|  | AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}", | 
|  | [Define to path to dot program if found or 'echo dot' otherwise]) | 
|  | fi | 
|  |  | 
|  | dnl Find the install program | 
|  | AC_PROG_INSTALL | 
|  | dnl Prepend src dir to install path dir if it's a relative path | 
|  | dnl This is a hack for installs that take place in something other | 
|  | dnl than the top level. | 
|  | case "$INSTALL" in | 
|  | [[\\/$]]* | ?:[[\\/]]* ) ;; | 
|  | *)  INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;; | 
|  | esac | 
|  |  | 
|  | dnl Checks for documentation and testing tools that we can do without. If these | 
|  | dnl are not found then they are set to "true" which always succeeds but does | 
|  | dnl nothing. This just lets the build output show that we could have done | 
|  | dnl something if the tool was available. | 
|  | AC_PATH_PROG(BZIP2, [bzip2]) | 
|  | AC_PATH_PROG(CAT, [cat]) | 
|  | AC_PATH_PROG(DOXYGEN, [doxygen]) | 
|  | AC_PATH_PROG(GROFF, [groff]) | 
|  | AC_PATH_PROG(GZIPBIN, [gzip]) | 
|  | AC_PATH_PROG(PDFROFF, [pdfroff]) | 
|  | AC_PATH_PROG(ZIP, [zip]) | 
|  | AC_PATH_PROG(GO, [go]) | 
|  | AC_PATH_PROGS(OCAMLFIND, [ocamlfind]) | 
|  | AC_PATH_PROGS(GAS, [gas as]) | 
|  |  | 
|  | dnl Get the version of the linker in use. | 
|  | AC_LINK_GET_VERSION | 
|  |  | 
|  | dnl Determine whether the linker supports the -R option. | 
|  | AC_LINK_USE_R | 
|  |  | 
|  | dnl Determine whether the compiler supports the -rdynamic option. | 
|  | AC_LINK_EXPORT_DYNAMIC | 
|  |  | 
|  | dnl Determine whether the linker supports the --version-script option. | 
|  | AC_LINK_VERSION_SCRIPT | 
|  |  | 
|  | AC_CHECK_HEADERS([errno.h]) | 
|  |  | 
|  | case "$llvm_cv_os_type" in | 
|  | Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;; | 
|  | Darwin) llvm_shlib_ext=.dylib ;; | 
|  | *) llvm_shlib_ext=.so ;; | 
|  | esac | 
|  |  | 
|  | AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension]) | 
|  |  | 
|  | AC_MSG_CHECKING([tool compatibility]) | 
|  |  | 
|  | dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as | 
|  | dnl ICC; we use GCC specific options in the makefiles so the compiler needs | 
|  | dnl to support those options. | 
|  | dnl "icc" emits gcc signatures | 
|  | dnl "icc -no-gcc" emits no gcc signature BUT is still compatible | 
|  | ICC=no | 
|  | IXX=no | 
|  | case $CC in | 
|  | icc*|icpc*) | 
|  | ICC=yes | 
|  | IXX=yes | 
|  | ;; | 
|  | *) | 
|  | ;; | 
|  | esac | 
|  |  | 
|  | if test "$GCC" != "yes" && test "$ICC" != "yes" | 
|  | then | 
|  | AC_MSG_ERROR([gcc|icc required but not found]) | 
|  | fi | 
|  |  | 
|  | dnl Ensure that compilation tools are compatible with GCC extensions | 
|  | if test "$GXX" != "yes" && test "$IXX" != "yes" | 
|  | then | 
|  | AC_MSG_ERROR([g++|clang++|icc required but not found]) | 
|  | fi | 
|  |  | 
|  | dnl Verify that GCC is version 3.0 or higher | 
|  | if test "$GCC" = "yes" | 
|  | then | 
|  | AC_COMPILE_IFELSE( | 
|  | [ | 
|  | AC_LANG_SOURCE([[ | 
|  | #if !defined(__GNUC__) || __GNUC__ < 3 | 
|  | #error Unsupported GCC version | 
|  | #endif | 
|  | ]]) | 
|  | ], | 
|  | [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])]) | 
|  | fi | 
|  |  | 
|  | dnl Check for GNU Make.  We use its extensions, so don't build without it | 
|  | if test -z "$llvm_cv_gnu_make_command" | 
|  | then | 
|  | AC_MSG_ERROR([GNU Make required but not found]) | 
|  | fi | 
|  |  | 
|  | dnl Tool compatibility is okay if we make it here. | 
|  | AC_MSG_RESULT([ok]) | 
|  |  | 
|  | dnl Check optional compiler flags. | 
|  | AC_MSG_CHECKING([optional compiler flags]) | 
|  | CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros]) | 
|  | CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers]) | 
|  | CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default]) | 
|  |  | 
|  | dnl GCC's potential uninitialized use analysis is weak and presents lots of | 
|  | dnl false positives, so disable it. | 
|  | NO_UNINITIALIZED= | 
|  | NO_MAYBE_UNINITIALIZED= | 
|  | if test "$GXX" = "yes" | 
|  | then | 
|  | CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized]) | 
|  | dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are | 
|  | dnl known to be uninitialized from cases which might be uninitialized.  We | 
|  | dnl still want to catch the first kind of errors. | 
|  | if test -z "$NO_MAYBE_UNINITIALIZED" | 
|  | then | 
|  | CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized]) | 
|  | fi | 
|  | fi | 
|  |  | 
|  | dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add | 
|  | dnl -Wno-comment to the flags. | 
|  | no_comment= | 
|  | llvm_cv_old_cxxflags="$CXXFLAGS" | 
|  | CXXFLAGS="$CXXFLAGS -Wcomment -Werror" | 
|  | AC_COMPILE_IFELSE( | 
|  | [ | 
|  | AC_LANG_SOURCE([[// Comment \o\ | 
|  | // Another comment | 
|  | int main() { return 0; } | 
|  | ]]) | 
|  | ], | 
|  | [ | 
|  | no_comment=-Wno-comment | 
|  | ], | 
|  | []) | 
|  | AC_SUBST(NO_COMMENT, [$no_comment]) | 
|  | CXXFLAGS="$llvm_cv_old_cxxflags" | 
|  |  | 
|  | AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT]) | 
|  |  | 
|  | AC_ARG_WITH([python], | 
|  | [AS_HELP_STRING([--with-python], [path to python])], | 
|  | [PYTHON="$withval"]) | 
|  |  | 
|  | if test -n "$PYTHON" && test -x "$PYTHON" ; then | 
|  | AC_MSG_CHECKING([for python]) | 
|  | AC_MSG_RESULT([user defined: $with_python]) | 
|  | else | 
|  | if test -n "$PYTHON" ; then | 
|  | AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path]) | 
|  | fi | 
|  |  | 
|  | AC_PATH_PROG([PYTHON], [python python2 python27], | 
|  | [AC_MSG_RESULT([not found]) | 
|  | AC_MSG_ERROR([could not find python 2.7 or higher])]) | 
|  | fi | 
|  |  | 
|  | AC_MSG_CHECKING([for python >= 2.7]) | 
|  | ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2` | 
|  | ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1` | 
|  | ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2` | 
|  | ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3` | 
|  | if test "$ac_python_version_major" -gt "2" || \ | 
|  | (test "$ac_python_version_major" -eq "2" && \ | 
|  | test "$ac_python_version_minor" -ge "7") ; then | 
|  | AC_MSG_RESULT([$PYTHON ($ac_python_version)]) | 
|  | else | 
|  | AC_MSG_RESULT([not found]) | 
|  | AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.7]) | 
|  | fi | 
|  |  | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl=== | 
|  | dnl=== SECTION 5: Check for libraries | 
|  | dnl=== | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  |  | 
|  | AC_CHECK_LIB(m,sin) | 
|  | if test "$llvm_cv_os_type" = "MingW" ; then | 
|  | AC_CHECK_LIB(imagehlp, main) | 
|  | AC_CHECK_LIB(psapi, main) | 
|  | AC_CHECK_LIB(shell32, main) | 
|  | fi | 
|  |  | 
|  | dnl dlopen() is required for plugin support. | 
|  | AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1], | 
|  | [Define if dlopen() is available on this platform.]), | 
|  | AC_MSG_WARN([dlopen() not found - disabling plugin support])) | 
|  |  | 
|  | dnl Search for the clock_gettime() function. Note that we rely on the POSIX | 
|  | dnl macros to detect whether clock_gettime is available, this just finds the | 
|  | dnl right libraries to link with. | 
|  | AC_SEARCH_LIBS(clock_gettime,rt) | 
|  |  | 
|  | dnl The curses library is optional; used for querying terminal info | 
|  | if test "$llvm_cv_enable_terminfo" = "yes" ; then | 
|  | dnl We need the has_color functionality in curses for it to be useful. | 
|  | AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw, | 
|  | LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1], | 
|  | [Define if the setupterm() function is supported this platform.])) | 
|  | fi | 
|  |  | 
|  | dnl The libedit library is optional; used by lib/LineEditor | 
|  | if test "$llvm_cv_enable_libedit" = "yes" ; then | 
|  | AC_SEARCH_LIBS(el_init,edit, | 
|  | AC_DEFINE([HAVE_LIBEDIT],[1], | 
|  | [Define if libedit is available on this platform.])) | 
|  | fi | 
|  |  | 
|  | dnl libffi is optional; used to call external functions from the interpreter | 
|  | if test "$llvm_cv_enable_libffi" = "yes" ; then | 
|  | AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1], | 
|  | [Define if libffi is available on this platform.]), | 
|  | AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it])) | 
|  | fi | 
|  |  | 
|  | dnl mallinfo is optional; the code can compile (minus features) without it | 
|  | AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1], | 
|  | [Define if mallinfo() is available on this platform.])) | 
|  |  | 
|  | dnl pthread locking functions are optional - but llvm will not be thread-safe | 
|  | dnl without locks. | 
|  | if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then | 
|  | AC_CHECK_LIB(pthread, pthread_mutex_init) | 
|  | AC_SEARCH_LIBS(pthread_mutex_lock,pthread, | 
|  | AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1], | 
|  | [Have pthread_mutex_lock])) | 
|  | AC_SEARCH_LIBS(pthread_rwlock_init,pthread, | 
|  | AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1], | 
|  | [Have pthread_rwlock_init])) | 
|  | AC_SEARCH_LIBS(pthread_getspecific,pthread, | 
|  | AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1], | 
|  | [Have pthread_getspecific])) | 
|  | fi | 
|  |  | 
|  | dnl zlib is optional; used for compression/uncompression | 
|  | if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then | 
|  | AC_CHECK_LIB(z, compress2) | 
|  | fi | 
|  |  | 
|  | dnl Allow OProfile support for JIT output. | 
|  | AC_ARG_WITH(oprofile, | 
|  | AS_HELP_STRING([--with-oprofile=<prefix>], | 
|  | [Tell OProfile >= 0.9.4 how to symbolize JIT output]), | 
|  | [ | 
|  | AC_SUBST(USE_OPROFILE, [1]) | 
|  | case "$withval" in | 
|  | /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;; | 
|  | no) llvm_cv_oppath= | 
|  | AC_SUBST(USE_OPROFILE, [0]) ;; | 
|  | *) llvm_cv_oppath="${withval}/lib/oprofile" | 
|  | CPPFLAGS="-I${withval}/include";; | 
|  | esac | 
|  | case $llvm_cv_os_type in | 
|  | Linux) | 
|  | if test -n "$llvm_cv_oppath" ; then | 
|  | LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}" | 
|  | dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744: | 
|  | dnl libbfd is not included properly in libopagent in some Debian | 
|  | dnl versions.  If libbfd isn't found at all, we assume opagent works | 
|  | dnl anyway. | 
|  | AC_SEARCH_LIBS(bfd_init, bfd, [], []) | 
|  | AC_SEARCH_LIBS(op_open_agent, opagent, [], [ | 
|  | echo "Error! You need to have libopagent around." | 
|  | exit 1 | 
|  | ]) | 
|  | AC_CHECK_HEADER([opagent.h], [], [ | 
|  | echo "Error! You need to have opagent.h around." | 
|  | exit 1 | 
|  | ]) | 
|  | fi ;; | 
|  | *) | 
|  | AC_MSG_ERROR([OProfile support is available on Linux only.]) ;; | 
|  | esac | 
|  | ], | 
|  | [ | 
|  | AC_SUBST(USE_OPROFILE, [0]) | 
|  | ]) | 
|  | AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE, | 
|  | [Define if we have the oprofile JIT-support library]) | 
|  |  | 
|  | dnl Enable support for Intel JIT Events API. | 
|  | AC_ARG_WITH(intel-jitevents, | 
|  | AS_HELP_STRING([--with-intel-jitevents  Notify Intel JIT profiling API of generated code]), | 
|  | [ | 
|  | case "$withval" in | 
|  | yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);; | 
|  | no)  AC_SUBST(USE_INTEL_JITEVENTS,[0]);; | 
|  | *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);; | 
|  | esac | 
|  |  | 
|  | case $llvm_cv_os_type in | 
|  | Linux|Win32|Cygwin|MingW) ;; | 
|  | *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);; | 
|  | esac | 
|  |  | 
|  | case "$llvm_cv_target_arch" in | 
|  | x86|x86_64) ;; | 
|  | *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);; | 
|  | esac | 
|  | ], | 
|  | [ | 
|  | AC_SUBST(USE_INTEL_JITEVENTS, [0]) | 
|  | ]) | 
|  | AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS, | 
|  | [Define if we have the Intel JIT API runtime support library]) | 
|  |  | 
|  | dnl Check for libxml2 | 
|  | dnl Right now we're just checking for the existence, we could also check for a | 
|  | dnl particular version via --version on xml2-config | 
|  | AC_CHECK_PROGS(XML2CONFIG, xml2-config) | 
|  |  | 
|  | AC_MSG_CHECKING(for libxml2 includes) | 
|  | if test "x$XML2CONFIG" = "x"; then | 
|  | AC_MSG_RESULT(xml2-config not found) | 
|  | else | 
|  | LIBXML2_INC=`$XML2CONFIG --cflags` | 
|  | AC_MSG_RESULT($LIBXML2_INC) | 
|  | AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2]) | 
|  | LIBXML2_LIBS="-lxml2"]) | 
|  | fi | 
|  | AC_SUBST(LIBXML2_LIBS) | 
|  | AC_SUBST(LIBXML2_INC) | 
|  |  | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl=== | 
|  | dnl=== SECTION 6: Check for header files | 
|  | dnl=== | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  |  | 
|  | dnl First, use autoconf provided macros for specific headers that we need | 
|  | dnl We don't check for ancient stuff or things that are guaranteed to be there | 
|  | dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers. | 
|  | dnl Generally we're looking for POSIX headers. | 
|  | AC_HEADER_DIRENT | 
|  | AC_HEADER_MMAP_ANONYMOUS | 
|  | AC_HEADER_STAT | 
|  | AC_HEADER_SYS_WAIT | 
|  | AC_HEADER_TIME | 
|  |  | 
|  | AC_LANG_PUSH([C++]) | 
|  | dnl size_t must be defined before including cxxabi.h on FreeBSD 10.0. | 
|  | AC_CHECK_HEADERS([cxxabi.h], [], [], | 
|  | [#include <stddef.h> | 
|  | ]) | 
|  | AC_LANG_POP([C++]) | 
|  |  | 
|  | AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h]) | 
|  | AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h]) | 
|  | AC_CHECK_HEADERS([utime.h]) | 
|  | AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h]) | 
|  | AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h]) | 
|  | AC_CHECK_HEADERS([valgrind/valgrind.h]) | 
|  | AC_CHECK_HEADERS([fenv.h]) | 
|  | AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]]) | 
|  | if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then | 
|  | AC_CHECK_HEADERS(pthread.h, | 
|  | AC_SUBST(HAVE_PTHREAD, 1), | 
|  | AC_SUBST(HAVE_PTHREAD, 0)) | 
|  | else | 
|  | AC_SUBST(HAVE_PTHREAD, 0) | 
|  | fi | 
|  | if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then | 
|  | AC_CHECK_HEADERS(zlib.h, | 
|  | AC_SUBST(HAVE_LIBZ, 1), | 
|  | AC_SUBST(HAVE_LIBZ, 0)) | 
|  | else | 
|  | AC_SUBST(HAVE_LIBZ, 0) | 
|  | fi | 
|  |  | 
|  | dnl Try to find ffi.h. | 
|  | if test "$llvm_cv_enable_libffi" = "yes" ; then | 
|  | AC_CHECK_HEADERS([ffi.h ffi/ffi.h]) | 
|  | fi | 
|  |  | 
|  | dnl Try to find Darwin specific crash reporting libraries. | 
|  | AC_CHECK_HEADERS([CrashReporterClient.h]) | 
|  |  | 
|  | dnl Try to find Darwin specific crash reporting global. | 
|  | AC_MSG_CHECKING([__crashreporter_info__]) | 
|  | AC_LINK_IFELSE( | 
|  | [ | 
|  | AC_LANG_SOURCE([[ | 
|  | extern const char *__crashreporter_info__; | 
|  | int main() { | 
|  | __crashreporter_info__ = "test"; | 
|  | return 0; | 
|  | } | 
|  | ]]) | 
|  | ], | 
|  | [ | 
|  | AC_MSG_RESULT([yes]) | 
|  | AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__]) | 
|  | ], | 
|  | [ | 
|  | AC_MSG_RESULT([no]) | 
|  | AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__]) | 
|  | ]) | 
|  |  | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl=== | 
|  | dnl=== SECTION 7: Check for types and structures | 
|  | dnl=== | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  |  | 
|  | AC_HUGE_VAL_CHECK | 
|  | AC_TYPE_PID_T | 
|  | AC_TYPE_SIZE_T | 
|  | AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').]) | 
|  | AC_STRUCT_TM | 
|  | AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found])) | 
|  | AC_CHECK_TYPES([uint64_t],, | 
|  | AC_CHECK_TYPES([u_int64_t],, | 
|  | AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found]))) | 
|  |  | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl=== | 
|  | dnl=== SECTION 8: Check for specific functions needed | 
|  | dnl=== | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  |  | 
|  | AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ]) | 
|  | AC_CHECK_FUNCS([powf fmodf strtof round ]) | 
|  | AC_CHECK_FUNCS([log log2 log10 exp exp2]) | 
|  | AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ]) | 
|  | AC_CHECK_FUNCS([isatty mkdtemp mkstemp ]) | 
|  | AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ]) | 
|  | AC_CHECK_FUNCS([strerror strerror_r setenv ]) | 
|  | AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ]) | 
|  | AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev]) | 
|  | AC_CHECK_FUNCS([futimes futimens]) | 
|  | AC_C_PRINTF_A | 
|  | AC_FUNC_RAND48 | 
|  |  | 
|  | dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT. | 
|  | AC_CHECK_DECLS([arc4random]) | 
|  |  | 
|  | dnl Check the declaration "Secure API" on Windows environments. | 
|  | AC_CHECK_DECLS([strerror_s]) | 
|  |  | 
|  | dnl Check symbols in libgcc.a for JIT on Mingw. | 
|  | if test "$llvm_cv_os_type" = "MingW" ; then | 
|  | AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca])) | 
|  | AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca])) | 
|  | AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk])) | 
|  | AC_CHECK_LIB(gcc,__chkstk_ms,AC_DEFINE([HAVE___CHKSTK_MS],[1],[Have host's __chkstk_ms])) | 
|  | AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk])) | 
|  | AC_CHECK_LIB(gcc,___chkstk_ms,AC_DEFINE([HAVE____CHKSTK_MS],[1],[Have host's ___chkstk_ms])) | 
|  |  | 
|  | AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3])) | 
|  | AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3])) | 
|  | AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3])) | 
|  | AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi])) | 
|  | AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi])) | 
|  | AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf])) | 
|  | AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3])) | 
|  | AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3])) | 
|  | AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3])) | 
|  | AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3])) | 
|  |  | 
|  | AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main])) | 
|  | AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2])) | 
|  | fi | 
|  |  | 
|  | dnl Check Win32 API EnumerateLoadedModules. | 
|  | if test "$llvm_cv_os_type" = "MingW" ; then | 
|  | AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl]) | 
|  | AC_COMPILE_IFELSE( | 
|  | [ | 
|  | AC_LANG_SOURCE([[ | 
|  | #include <windows.h> | 
|  | #include <imagehlp.h> | 
|  | extern void foo(PENUMLOADED_MODULES_CALLBACK); | 
|  | extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID)); | 
|  | ]]) | 
|  | ], | 
|  | [ | 
|  | AC_MSG_RESULT([yes]) | 
|  | llvm_cv_win32_elmcb_pcstr="PCSTR" | 
|  | ], | 
|  | [ | 
|  | AC_MSG_RESULT([no]) | 
|  | llvm_cv_win32_elmcb_pcstr="PSTR" | 
|  | ]) | 
|  | AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback]) | 
|  | fi | 
|  |  | 
|  | dnl Check for variations in the Standard C++ library and STL. These macros are | 
|  | dnl provided by LLVM in the autoconf/m4 directory. | 
|  | AC_FUNC_ISNAN | 
|  | AC_FUNC_ISINF | 
|  |  | 
|  | dnl Check for mmap support.We also need to know if /dev/zero is required to | 
|  | dnl be opened for allocating RWX memory. | 
|  | dnl Make sure we aren't attempting to configure for an unknown system | 
|  | if test "$llvm_cv_platform_type" = "Unix" ; then | 
|  | AC_FUNC_MMAP | 
|  | AC_FUNC_MMAP_FILE | 
|  | AC_NEED_DEV_ZERO_FOR_MMAP | 
|  |  | 
|  | if test "$ac_cv_func_mmap_fixed_mapped" = "no" | 
|  | then | 
|  | AC_MSG_WARN([mmap() of a fixed address required but not supported]) | 
|  | fi | 
|  | if test "$ac_cv_func_mmap_file" = "no" | 
|  | then | 
|  | AC_MSG_WARN([mmap() of files required but not found]) | 
|  | fi | 
|  | fi | 
|  |  | 
|  | dnl atomic builtins are required for threading support. | 
|  | AC_MSG_CHECKING(for GCC atomic builtins) | 
|  | dnl Since we'll be using these atomic builtins in C++ files we should test | 
|  | dnl the C++ compiler. | 
|  | AC_LANG_PUSH([C++]) | 
|  | AC_LINK_IFELSE( | 
|  | [ | 
|  | AC_LANG_SOURCE([[ | 
|  | int main() { | 
|  | volatile unsigned long val = 1; | 
|  | __sync_synchronize(); | 
|  | __sync_val_compare_and_swap(&val, 1, 0); | 
|  | __sync_add_and_fetch(&val, 1); | 
|  | __sync_sub_and_fetch(&val, 1); | 
|  | return 0; | 
|  | } | 
|  | ]]) | 
|  | ], | 
|  | [ | 
|  | AC_MSG_RESULT([yes]) | 
|  | AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics]) | 
|  | ], | 
|  | [ | 
|  | AC_MSG_RESULT([no]) | 
|  | AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics]) | 
|  | AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing]) | 
|  | ]) | 
|  | AC_LANG_POP([C++]) | 
|  |  | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl=== | 
|  | dnl=== SECTION 9: Additional checks, variables, etc. | 
|  | dnl=== | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  |  | 
|  | dnl Handle 32-bit linux systems running a 64-bit kernel. | 
|  | dnl This has to come after section 4 because it invokes the compiler. | 
|  | if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then | 
|  | AC_IS_LINUX_MIXED | 
|  | if test "$llvm_cv_linux_mixed" = "yes"; then | 
|  | llvm_cv_target_arch="x86" | 
|  | ARCH="x86" | 
|  | fi | 
|  | fi | 
|  |  | 
|  | dnl Check whether __dso_handle is present | 
|  | AC_CHECK_FUNCS([__dso_handle]) | 
|  |  | 
|  | dnl Propagate the shared library extension that the libltdl checks did to | 
|  | dnl the Makefiles so we can use it there too | 
|  | AC_SUBST(SHLIBEXT,$llvm_shlib_ext) | 
|  |  | 
|  | dnl Translate the various configuration directories and other basic | 
|  | dnl information into substitutions that will end up in Makefile.config.in | 
|  | dnl that these configured values can be used by the makefiles | 
|  | if test "${prefix}" = "NONE" ; then | 
|  | prefix="/usr/local" | 
|  | fi | 
|  | eval LLVM_PREFIX="${prefix}"; | 
|  | eval LLVM_BINDIR="${prefix}/bin"; | 
|  | eval LLVM_DATADIR="${prefix}/share/llvm"; | 
|  | eval LLVM_DOCSDIR="${prefix}/share/doc/llvm"; | 
|  | eval LLVM_ETCDIR="${prefix}/etc/llvm"; | 
|  | eval LLVM_INCLUDEDIR="${prefix}/include"; | 
|  | eval LLVM_INFODIR="${prefix}/info"; | 
|  | eval LLVM_MANDIR="${prefix}/man"; | 
|  | LLVM_CONFIGTIME=`date` | 
|  | AC_SUBST(LLVM_PREFIX) | 
|  | AC_SUBST(LLVM_BINDIR) | 
|  | AC_SUBST(LLVM_DATADIR) | 
|  | AC_SUBST(LLVM_DOCSDIR) | 
|  | AC_SUBST(LLVM_ETCDIR) | 
|  | AC_SUBST(LLVM_INCLUDEDIR) | 
|  | AC_SUBST(LLVM_INFODIR) | 
|  | AC_SUBST(LLVM_MANDIR) | 
|  | AC_SUBST(LLVM_CONFIGTIME) | 
|  |  | 
|  | dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS. | 
|  | if test "${ENABLE_TIMESTAMPS}" = "0"; then | 
|  | LLVM_CONFIGTIME="(timestamp not enabled)" | 
|  | fi | 
|  |  | 
|  | dnl Place the various directories into the config.h file as #defines so that we | 
|  | dnl can know about the installation paths within LLVM. | 
|  | AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX", | 
|  | [Installation prefix directory]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR", | 
|  | [Installation directory for binary executables]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR", | 
|  | [Installation directory for data files]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR", | 
|  | [Installation directory for documentation]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR", | 
|  | [Installation directory for config files]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR", | 
|  | [Installation directory for include files]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR", | 
|  | [Installation directory for .info files]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR", | 
|  | [Installation directory for man pages]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME", | 
|  | [Time at which LLVM was configured]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host", | 
|  | [Host triple LLVM will be executed on]) | 
|  | AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target", | 
|  | [Target triple LLVM will generate code for by default]) | 
|  |  | 
|  | dnl Determine which bindings to build. | 
|  | if test "$BINDINGS_TO_BUILD" = auto ; then | 
|  | BINDINGS_TO_BUILD="" | 
|  | if test "x$OCAMLFIND" != x ; then | 
|  | BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" | 
|  | fi | 
|  | if test "x$GO" != x ; then | 
|  | if $GO run ${srcdir}/bindings/go/conftest.go ; then | 
|  | BINDINGS_TO_BUILD="go $BINDINGS_TO_BUILD" | 
|  | fi | 
|  | fi | 
|  | fi | 
|  | AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD) | 
|  |  | 
|  | dnl Do any work necessary to ensure that bindings have what they need. | 
|  | binding_prereqs_failed=0 | 
|  | for a_binding in $BINDINGS_TO_BUILD ; do | 
|  | case "$a_binding" in | 
|  | ocaml) | 
|  | if test "x$OCAMLFIND" = x ; then | 
|  | AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlfind not found. Try configure OCAMLFIND=/path/to/ocamlfind]) | 
|  | binding_prereqs_failed=1 | 
|  | fi | 
|  |  | 
|  | if $OCAMLFIND opt -version >/dev/null 2>/dev/null ; then | 
|  | HAVE_OCAMLOPT=1 | 
|  | else | 
|  | HAVE_OCAMLOPT=0 | 
|  | fi | 
|  | AC_SUBST(HAVE_OCAMLOPT) | 
|  |  | 
|  | if ! $OCAMLFIND query ctypes >/dev/null 2>/dev/null; then | 
|  | AC_MSG_WARN([--enable-bindings=ocaml specified, but ctypes is not installed]) | 
|  | binding_prereqs_failed=1 | 
|  | fi | 
|  |  | 
|  | if $OCAMLFIND query oUnit >/dev/null 2>/dev/null; then | 
|  | HAVE_OCAML_OUNIT=1 | 
|  | else | 
|  | HAVE_OCAML_OUNIT=0 | 
|  | AC_MSG_WARN([--enable-bindings=ocaml specified, but OUnit 2 is not installed. Tests will not run]) | 
|  | dnl oUnit is optional! | 
|  | fi | 
|  | AC_SUBST(HAVE_OCAML_OUNIT) | 
|  |  | 
|  | if test "x$with_ocaml_libdir" != xauto ; then | 
|  | AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir) | 
|  | else | 
|  | ocaml_stdlib="`"$OCAMLFIND" ocamlc -where`" | 
|  | if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~" | 
|  | then | 
|  | # ocaml stdlib is beneath our prefix; use stdlib | 
|  | AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib) | 
|  | else | 
|  | # ocaml stdlib is outside our prefix; use libdir/ocaml | 
|  | AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml) | 
|  | fi | 
|  | fi | 
|  | ;; | 
|  | go) | 
|  | if test "x$GO" = x ; then | 
|  | AC_MSG_WARN([--enable-bindings=go specified, but go not found. Try configure GO=/path/to/go]) | 
|  | binding_prereqs_failed=1 | 
|  | else | 
|  | if $GO run ${srcdir}/bindings/go/conftest.go ; then | 
|  | : | 
|  | else | 
|  | AC_MSG_WARN([--enable-bindings=go specified, but need at least Go 1.2. Try configure GO=/path/to/go]) | 
|  | binding_prereqs_failed=1 | 
|  | fi | 
|  | fi | 
|  | ;; | 
|  | esac | 
|  | done | 
|  | if test "$binding_prereqs_failed" = 1 ; then | 
|  | AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.]) | 
|  | fi | 
|  |  | 
|  | dnl Determine whether the compiler supports -fvisibility-inlines-hidden. | 
|  | AC_CXX_USE_VISIBILITY_INLINES_HIDDEN | 
|  |  | 
|  | dnl Determine linker rpath flag | 
|  | if test "$llvm_cv_link_use_r" = "yes" ; then | 
|  | RPATH="-Wl,-R" | 
|  | else | 
|  | RPATH="-Wl,-rpath" | 
|  | fi | 
|  | AC_SUBST(RPATH) | 
|  |  | 
|  | dnl Determine linker rdynamic flag | 
|  | if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then | 
|  | RDYNAMIC="-rdynamic" | 
|  | else | 
|  | RDYNAMIC="" | 
|  | fi | 
|  | AC_SUBST(RDYNAMIC) | 
|  |  | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  | dnl=== | 
|  | dnl=== SECTION 10: Specify the output files and generate it | 
|  | dnl=== | 
|  | dnl===-----------------------------------------------------------------------=== | 
|  |  | 
|  | dnl Configure header files | 
|  | dnl WARNING: dnl If you add or remove any of the following config headers, then | 
|  | dnl you MUST also update Makefile so that the variable FilesToConfig | 
|  | dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the | 
|  | dnl files can be updated automatically when their *.in sources change. | 
|  | AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h]) | 
|  | AH_TOP([#ifndef CONFIG_H | 
|  | #define CONFIG_H]) | 
|  | AH_BOTTOM([#endif]) | 
|  |  | 
|  | AC_CONFIG_FILES([include/llvm/Config/Targets.def]) | 
|  | AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def]) | 
|  | AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def]) | 
|  | AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def]) | 
|  | AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h]) | 
|  |  | 
|  | dnl Configure the makefile's configuration data | 
|  | AC_CONFIG_FILES([Makefile.config]) | 
|  |  | 
|  | dnl Configure the RPM spec file for LLVM | 
|  | AC_CONFIG_FILES([llvm.spec]) | 
|  |  | 
|  | dnl Configure doxygen's configuration file | 
|  | AC_CONFIG_FILES([docs/doxygen.cfg]) | 
|  |  | 
|  | dnl Configure clang, if present | 
|  | if test "${clang_src_root}" = ""; then | 
|  | clang_src_root="$srcdir/tools/clang" | 
|  | fi | 
|  | if test -f ${clang_src_root}/README.txt; then | 
|  | dnl Clang supports build systems which use the multilib libdir suffix. | 
|  | dnl The autoconf system doesn't support this so stub out that variable. | 
|  | AC_DEFINE_UNQUOTED(CLANG_LIBDIR_SUFFIX,"", | 
|  | [Multilib suffix for libdir.]) | 
|  |  | 
|  | dnl Use variables to stay under 80 columns. | 
|  | configh="include/clang/Config/config.h" | 
|  | doxy="docs/doxygen.cfg" | 
|  | AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in]) | 
|  | AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in]) | 
|  | fi | 
|  |  | 
|  | dnl OCaml findlib META file | 
|  | AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm]) | 
|  |  | 
|  | dnl Add --program-prefix value to Makefile.rules. Already an ARG variable. | 
|  | test "x$program_prefix" = "xNONE" && program_prefix="" | 
|  | AC_SUBST([program_prefix]) | 
|  |  | 
|  |  | 
|  | dnl Do special configuration of Makefiles | 
|  | AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"]) | 
|  | AC_CONFIG_MAKEFILE(Makefile) | 
|  | AC_CONFIG_MAKEFILE(Makefile.common) | 
|  | AC_CONFIG_MAKEFILE(examples/Makefile) | 
|  | AC_CONFIG_MAKEFILE(lib/Makefile) | 
|  | AC_CONFIG_MAKEFILE(test/Makefile) | 
|  | AC_CONFIG_MAKEFILE(test/Makefile.tests) | 
|  | AC_CONFIG_MAKEFILE(unittests/Makefile) | 
|  | AC_CONFIG_MAKEFILE(tools/Makefile) | 
|  | AC_CONFIG_MAKEFILE(utils/Makefile) | 
|  | AC_CONFIG_MAKEFILE(projects/Makefile) | 
|  | AC_CONFIG_MAKEFILE(bindings/Makefile) | 
|  | AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml) | 
|  |  | 
|  | dnl Finally, crank out the output | 
|  | AC_OUTPUT |