| define(pkg_major, 0) |
| define(pkg_minor, 99) |
| define(pkg_extra, -beta) |
| define(pkg_maintainer, libunwind-devel@nongnu.org) |
| define(mkvers, $1.$2$3) |
| dnl Process this file with autoconf to produce a configure script. |
| AC_INIT(libunwind, mkvers(pkg_major, pkg_minor, pkg_extra), pkg_maintainer) |
| AC_CONFIG_SRCDIR(src/mi/backtrace.c) |
| AC_CONFIG_AUX_DIR(config) |
| AC_CANONICAL_SYSTEM |
| AM_INIT_AUTOMAKE([1.6 subdir-objects]) |
| AM_MAINTAINER_MODE |
| AM_CONFIG_HEADER(include/config.h) |
| |
| dnl Checks for programs. |
| AC_PROG_CC |
| AC_PROG_CXX |
| AC_PROG_INSTALL |
| AC_PROG_MAKE_SET |
| AM_PROG_LIBTOOL |
| AM_PROG_AS |
| AM_PROG_CC_C_O |
| |
| dnl Checks for libraries. |
| AC_CHECK_LIB(uca, __uc_get_grs) |
| OLD_LIBS=${LIBS} |
| AC_SEARCH_LIBS(dlopen, dl) |
| LIBS=${OLD_LIBS} |
| case "$ac_cv_search_dlopen" in |
| -l*) DLLIB=$ac_cv_search_dlopen;; |
| *) DLLIB="";; |
| esac |
| |
| CHECK_ATOMIC_OPS |
| |
| dnl Checks for header files. |
| AC_HEADER_STDC |
| AC_CHECK_HEADERS(asm/ptrace_offsets.h endian.h sys/endian.h execinfo.h \ |
| ia64intrin.h sys/uc_access.h unistd.h signal.h sys/types.h \ |
| sys/procfs.h) |
| |
| dnl Checks for typedefs, structures, and compiler characteristics. |
| AC_C_CONST |
| AC_C_INLINE |
| AC_TYPE_SIGNAL |
| AC_TYPE_SIZE_T |
| |
| CPPFLAGS="${CPPFLAGS} -D_GNU_SOURCE" |
| if test x$enable_debug = xyes; then |
| CPPFLAGS="${CPPFLAGS} -DDEBUG" |
| else |
| CPPFLAGS="${CPPFLAGS} -DNDEBUG" |
| fi |
| |
| AC_CHECK_MEMBERS([struct dl_phdr_info.dlpi_subs],,,[#include <link.h>]) |
| AC_CHECK_TYPES([sighandler_t], [], [], |
| [$ac_includes_default |
| #if HAVE_SIGNAL_H |
| # include <signal.h> |
| #endif |
| ]) |
| |
| AC_CHECK_DECLS([PTRACE_POKEUSER, PTRACE_POKEDATA, |
| PTRACE_TRACEME, PTRACE_CONT, PTRACE_SINGLESTEP, |
| PTRACE_SYSCALL, PT_IO, PT_GETREGS, |
| PT_GETFPREGS, PT_CONTINUE, PT_TRACE_ME, |
| PT_STEP, PT_SYSCALL], [], [], |
| [$ac_includes_default |
| #if HAVE_SYS_TYPES_H |
| #include <sys/types.h> |
| #endif |
| #include <sys/ptrace.h> |
| ]) |
| |
| dnl Checks for library functions. |
| AC_FUNC_MEMCMP |
| AC_TYPE_SIGNAL |
| AC_CHECK_FUNCS(dl_iterate_phdr dl_phdr_removals_counter dlmodinfo getunwind \ |
| ttrace mincore) |
| is_gcc_m64() { |
| if test `echo $CFLAGS | grep "\-m64" -c` -eq 1 ; then echo ppc64; |
| else |
| if test `echo $CC | grep "\-m64" -c` -eq 1 ; then echo ppc64; else echo ppc32; fi; |
| fi; |
| } |
| |
| is_gcc_altivec() { |
| if test `echo $CFLAGS | grep "\-maltivec" -c` -eq 1 ; then echo has_altivec; |
| else |
| if test `echo $CC | grep "\-maltivec" -c` -eq 1 ; then echo has_altivec; else echo no_altivec; fi; |
| fi; |
| } |
| |
| use_altivec=`is_gcc_altivec` |
| AM_CONDITIONAL(USE_ALTIVEC, test x$use_altivec = xhas_altivec) |
| |
| get_arch() { |
| case "$1" in |
| arm*) echo arm;; |
| i?86) echo x86;; |
| hppa*) echo hppa;; |
| mips*) echo mips;; |
| powerpc*) is_gcc_m64;; |
| amd64) echo x86_64;; |
| *) echo $1;; |
| esac |
| } |
| |
| build_arch=`get_arch $build_cpu` |
| host_arch=`get_arch $host_cpu` |
| target_arch=`get_arch $target_cpu` |
| |
| AM_CONDITIONAL(REMOTE_ONLY, test x$target_arch != x$host_arch) |
| AM_CONDITIONAL(ARCH_ARM, test x$target_arch = xarm) |
| AM_CONDITIONAL(ARCH_IA64, test x$target_arch = xia64) |
| AM_CONDITIONAL(ARCH_HPPA, test x$target_arch = xhppa) |
| AM_CONDITIONAL(ARCH_MIPS, test x$target_arch = xmips) |
| AM_CONDITIONAL(ARCH_X86, test x$target_arch = xx86) |
| AM_CONDITIONAL(ARCH_X86_64, test x$target_arch = xx86_64) |
| AM_CONDITIONAL(ARCH_PPC32, test x$target_arch = xppc32) |
| AM_CONDITIONAL(ARCH_PPC64, test x$target_arch = xppc64) |
| AM_CONDITIONAL(OS_LINUX, expr x$target_os : xlinux >/dev/null) |
| AM_CONDITIONAL(OS_HPUX, expr x$target_os : xhpux >/dev/null) |
| AM_CONDITIONAL(OS_FREEBSD, expr x$target_os : xfreebsd >/dev/null) |
| |
| if test x$target_arch = xppc64; then |
| libdir='${exec_prefix}/lib64' |
| AC_MSG_NOTICE([PowerPC64 detected, lib will be installed ${libdir}]); |
| AC_SUBST([libdir]) |
| fi |
| |
| if test x$target_arch != x$host_arch; then |
| CPPFLAGS="${CPPFLAGS} -DUNW_REMOTE_ONLY" |
| fi |
| |
| AC_ARG_ENABLE(debug, |
| [ --enable-debug turn on debug support (slows down execution)], |
| [enable_debug=yes], []) |
| |
| AC_ARG_ENABLE(cxx_exceptions, |
| [ --enable-cxx-exceptions use libunwind to handle C++ exceptions], |
| [enable_cxx_exceptions=$enableval], |
| [ |
| # C++ exception handling doesn't work too well on x86 |
| case $target_arch in |
| x86*) enable_cxx_exceptions=no;; |
| arm*) enable_cxx_exceptions=no;; |
| mips*) enable_cxx_exceptions=no;; |
| *) enable_cxx_exceptions=yes;; |
| esac |
| ]) |
| |
| if test x$enable_cxx_exceptions = xyes; then |
| AC_MSG_NOTICE([Enabling C++ exception support]) |
| fi |
| AM_CONDITIONAL([SUPPORT_CXX_EXCEPTIONS], [test x$enable_cxx_exceptions = xyes]) |
| |
| AC_ARG_ENABLE(debug_frame, |
| [ --enable-debug-frame Load the ".debug_frame" section if available], |
| [enable_debug_frame=$enableval], [enable_debug_frame=no]) |
| if test x$enable_debug_frame = xyes; then |
| AC_DEFINE([CONFIG_DEBUG_FRAME], [], [Enable Debug Frame]) |
| fi |
| |
| AC_ARG_ENABLE(block_signals, |
| [ --enable-block-signals Block signals before performing mutex operations], |
| [enable_block_signals=$enableval], [enable_block_signals=yes]) |
| if test x$enable_block_signals = xyes; then |
| AC_DEFINE([CONFIG_BLOCK_SIGNALS], [], [Block signals before mutex operations]) |
| fi |
| |
| AC_ARG_ENABLE(conservative_checks, |
| [ --enable-conservative-checks Validate all memory addresses before use], |
| [enable_conservative_checks=$enableval], [enable_conservative_checks=yes]) |
| if test x$enable_conservative_checks = xyes; then |
| CPPFLAGS="${CPPFLAGS} -DCONSERVATIVE_CHECKS" |
| fi |
| |
| LIBUNWIND___THREAD |
| |
| save_LDFLAGS="$LDFLAGS" |
| LDFLAGS="$LDFLAGS -static-libcxa" |
| AC_TRY_LINK([], [], [have_static_libcxa=yes]) |
| LDFLAGS="$save_LDFLAGS" |
| if test "x$have_static_libcxa" = xyes; then |
| LDFLAGS_STATIC_LIBCXA="-XCClinker -static-libcxa" |
| fi |
| |
| AC_TRY_COMPILE([], [#ifndef __INTEL_COMPILER |
| #error choke me |
| #endif], [intel_compiler=yes]) |
| |
| if test x$GCC = xyes -a x$intel_compiler != xyes; then |
| CFLAGS="${CFLAGS} -fexceptions -Wall -Wsign-compare" |
| LIBCRTS="-lgcc" |
| fi |
| |
| CCASFLAGS="${CCASFLAGS} ${CPPFLAGS}" |
| |
| arch="$target_arch" |
| ARCH=`echo $target_arch | tr [a-z] [A-Z]` |
| |
| dnl create shell variables from the M4 macros: |
| PKG_MAJOR=pkg_major |
| PKG_MINOR=pkg_minor |
| PKG_EXTRA=pkg_extra |
| PKG_MAINTAINER=pkg_maintainer |
| |
| AC_SUBST(build_arch) |
| AC_SUBST(target_os) |
| AC_SUBST(arch) |
| AC_SUBST(ARCH) |
| AC_SUBST(LDFLAGS_STATIC_LIBCXA) |
| AC_SUBST(LIBCRTS) |
| AC_SUBST(PKG_MAJOR) |
| AC_SUBST(PKG_MINOR) |
| AC_SUBST(PKG_EXTRA) |
| AC_SUBST(PKG_MAINTAINER) |
| AC_SUBST(enable_cxx_exceptions) |
| AC_SUBST(enable_debug_frame) |
| AC_SUBST(DLLIB) |
| |
| AC_CONFIG_FILES(Makefile src/Makefile tests/Makefile tests/check-namespace.sh |
| doc/Makefile doc/common.tex include/libunwind-common.h) |
| AC_OUTPUT |