#  Copyright 2005 Adam Jackson.
#
#  Permission is hereby granted, free of charge, to any person obtaining a
#  copy of this software and associated documentation files (the "Software"),
#  to deal in the Software without restriction, including without limitation
#  on the rights to use, copy, modify, merge, publish, distribute, sub
#  license, and/or sell copies of the Software, and to permit persons to whom
#  the Software is furnished to do so, subject to the following conditions:
#
#  The above copyright notice and this permission notice (including the next
#  paragraph) shall be included in all copies or substantial portions of the
#  Software.
#
#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#  FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
#  ADAM JACKSON BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
#  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
#  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Process this file with autoconf to produce a configure script

AC_PREREQ([2.60])
AC_INIT([intel-gpu-tools],
	[1.15],
	[https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=IGT],
	[intel-gpu-tools])

AC_CONFIG_SRCDIR([Makefile.am])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_AUX_DIR([build-aux])
AC_USE_SYSTEM_EXTENSIONS
AC_SYS_LARGEFILE
AC_GNU_SOURCE
AC_CANONICAL_HOST
AC_CANONICAL_TARGET

AM_INIT_AUTOMAKE([1.12 foreign subdir-objects dist-bzip2])
AM_PATH_PYTHON([3],, [:])

AC_PROG_CC
AM_PROG_LEX
AC_PROG_YACC

# check for gtk-doc
m4_ifdef([GTK_DOC_CHECK], [
GTK_DOC_CHECK([1.14],[--flavour no-tmpl])
],[
AM_CONDITIONAL([ENABLE_GTK_DOC], false)
enable_gtk_doc=no
])

# check for rst2man for generating man pages
AC_CHECK_PROG(RST2MAN, rst2man, yes, no)
AM_CONDITIONAL(HAVE_RST2MAN, [test "x$RST2MAN" = xyes])

# Checks for functions, headers, structures, etc.
AC_HEADER_STDC
AC_CHECK_HEADERS([termios.h linux/kd.h sys/kd.h libgen.h sys/io.h])
AC_CHECK_MEMBERS([struct sysinfo.totalram],[],[],[AC_INCLUDES_DEFAULT
		  #include <sys/sysinfo.h>
		  ])
AC_CHECK_TYPES([sighandler_t],[],[],[AC_INCLUDES_DEFAULT
#include <signal.h>])
AC_CHECK_FUNCS([swapctl])
AC_CHECK_FUNCS([asprintf])

dnl Check for POSIX timers
AC_CHECK_FUNCS(timer_create, [], [
	AC_CHECK_LIB(rt, timer_create, [
		AC_DEFINE(HAVE_TIMER_CREATE, 1)
		TIMER_LIBS="-lrt"
		], [
		AC_CHECK_LIB(pthread, timer_create, [
			AC_DEFINE(HAVE_TIMER_CREATE, 1)
			TIMER_LIBS="-lpthread"
		])
	])
])
AC_SUBST(TIMER_LIBS)

dnl Check for CPUID
cpuid="yes"
AC_TRY_LINK([
	#include <cpuid.h>
	#include <stddef.h>
	],
	[
	int eax, ebx, ecx, edx;
	if (__get_cpuid_max(0, NULL) < 4)
		return 0;
	__cpuid_count(4, 0, eax, ebx, ecx, edx);
	],
	[cpuid="yes"],
	[cpuid="no"]
)
if test "x$cpuid" = "xyes"; then
	AC_DEFINE(HAVE_CPUID_H, 1, [Found a useable cpuid.h])
fi

# Initialize libtool
AC_DISABLE_STATIC
AC_PROG_LIBTOOL

# Require X.Org macros 1.16 or later for XORG_TESTSET_CFLAG
m4_ifndef([XORG_MACROS_VERSION],
	  [m4_fatal([must install xorg-macros 1.16 or later before running autoconf/autogen])])
XORG_MACROS_VERSION(1.16)
XORG_DEFAULT_OPTIONS

# warning flags for the assembler. We can't quite use CWARNFLAGS for it yet as
# it generates waaaay too many warnings.
ASSEMBLER_WARN_CFLAGS=""
if test "x$GCC" = "xyes"; then
	ASSEMBLER_WARN_CFLAGS="-Wall -Wstrict-prototypes \
	-Wmissing-prototypes -Wmissing-declarations \
	-Wnested-externs -fno-strict-aliasing"
fi
AC_SUBST(ASSEMBLER_WARN_CFLAGS)

PKG_CHECK_MODULES(DRM, [libdrm_intel >= 2.4.67 libdrm])
PKG_CHECK_MODULES(PCIACCESS, [pciaccess >= 0.10])

case "$target_cpu" in
	x86*)
		build_x86="yes"
		;;
	*)
		build_x86="no"
		;;
esac

if test x"$build_x86" = xyes; then
	PKG_CHECK_MODULES(OVERLAY_XVLIB, [xv x11 xext dri2proto >= 2.6], enable_overlay_xvlib=yes, enable_overlay_xvlib=no)
	PKG_CHECK_MODULES(OVERLAY_XLIB, [cairo-xlib dri2proto >= 2.6], enable_overlay_xlib=yes, enable_overlay_xlib=no)
	AS_IF([test x"$LEX" != "x:" -a x"$YACC" != xyacc],
		[enable_assembler=yes],
		[enable_assembler=no])
else
	enable_overlay_xvlib="no"
	enable_overlay_xlib="no"
	enable_assembler="no"
	BUILD_SHADER_DEBUGGER="no"
fi
AM_CONDITIONAL(BUILD_X86, [test "x$build_x86" = xyes])

AM_CONDITIONAL(BUILD_ASSEMBLER, [test "x$enable_assembler" = xyes])

AM_CONDITIONAL(BUILD_OVERLAY_XVLIB, [test "x$enable_overlay_xvlib" = xyes])
AM_CONDITIONAL(BUILD_OVERLAY_XLIB, [test "x$enable_overlay_xlib" = xyes])
AM_CONDITIONAL(BUILD_OVERLAY, [test "x$enable_overlay_xlib" = xyes -o "x$enable_overlay_xvlib"])
if test x$enable_overlay_xvlib = xyes; then
	AC_DEFINE(HAVE_OVERLAY_XVLIB, 1, [Enable XV backend])
fi
if test x$enable_overlay_xlib = xyes; then
	AC_DEFINE(HAVE_OVERLAY_XLIB, 1, [Enable X backend])
fi
PKG_CHECK_MODULES(XRANDR, xrandr >= 1.3, AC_DEFINE(HAVE_XRANDR, 1, [Have libXrandr]), [have_xrandr=no])

# for testdisplay
PKG_CHECK_MODULES(CAIRO, [cairo >= 1.12.0])
PKG_CHECK_MODULES(LIBUDEV, [libudev], [udev=yes], [udev=no])
if test x"$udev" = xyes; then
	AC_DEFINE(HAVE_UDEV,1,[Enable udev-based monitor hotplug detection])
fi
PKG_CHECK_MODULES(GLIB, glib-2.0)

# -----------------------------------------------------------------------------
#			Configuration options
# -----------------------------------------------------------------------------
# for dma-buf tests
AC_ARG_ENABLE(nouveau, AS_HELP_STRING([--disable-nouveau],
	      [Enable use of nouveau API for prime tests (default: auto)]),
	      [NOUVEAU=$enableval], [NOUVEAU=auto])
if test "x$NOUVEAU" = xauto; then
	PKG_CHECK_EXISTS([libdrm_nouveau >= 2.4.33], [NOUVEAU=yes], [NOUVEAU=no])
fi
if test "x$NOUVEAU" = xyes; then
	PKG_CHECK_MODULES(DRM_NOUVEAU, [libdrm_nouveau >= 2.4.33])
	AC_DEFINE(HAVE_NOUVEAU, 1, [Have nouveau support])
fi
AM_CONDITIONAL(HAVE_NOUVEAU, [test "x$NOUVEAU" = xyes])

AC_ARG_ENABLE(vc4, AS_HELP_STRING([--disable-vc4],
	      [Enable building of vc4 tests (default: auto)]),
	      [VC4=$enableval], [VC4=auto])
if test "x$VC4" = xauto; then
	PKG_CHECK_EXISTS([libdrm_vc4], [VC4=yes], [VC4=no])
fi
if test "x$VC4" = xyes; then
	PKG_CHECK_MODULES(DRM_VC4, [libdrm_vc4])
	AC_DEFINE(HAVE_VC4, 1, [Have vc4 support])
fi
AM_CONDITIONAL(HAVE_VC4, [test "x$VC4" = xyes])

# Define a configure option for the shader debugger
AC_ARG_ENABLE(shader-debugger, AS_HELP_STRING([--enable-shader-debugger],
	      [Enable shader debugging support [autodetected]]),
	      [BUILD_SHADER_DEBUGGER="$enableval"], [BUILD_SHADER_DEBUGGER=no])

# Shader debugger depends on python3, intel-genasm and objcopy
if test "x$BUILD_SHADER_DEBUGGER" != xno; then
	# Check that the assembler is built
	if test "x$enable_assembler" = xno; then
		BUILD_SHADER_DEBUGGER=no
		if test "x$BUILD_SHADER_DEBUGGER" = xyes; then
			AC_MSG_ERROR([Shader debugger requested, but assembler not enabled.])
		fi
	fi

	# Check Python 3 is installed
	if test "$PYTHON" = ":" ; then
		if test "x$BUILD_SHADER_DEBUGGER" = xyes; then
			AC_MSG_ERROR([Shader debugger requested, python version 3 not found.])
		else
			BUILD_SHADER_DEBUGGER=no
		fi
	fi

	# Check for the objcopy GNU binary utiliy command
	AC_PATH_PROGS([OBJCOPY], objcopy)
	if test -z "$OBJCOPY" ; then
		if test "x$BUILD_SHADER_DEBUGGER" = xyes; then
			AC_MSG_ERROR([Shader debugger requested, but objcopy command not found.])
		else
			BUILD_SHADER_DEBUGGER=no
		fi
	fi
fi

AM_CONDITIONAL(BUILD_SHADER_DEBUGGER, [test "x$BUILD_SHADER_DEBUGGER" != xno])
AS_IF([test "x$BUILD_SHADER_DEBUGGER" != xno],
      [enable_debugger=yes], [enable_debugger=no])

AC_ARG_WITH(libunwind,
	    AS_HELP_STRING([--without-libunwind],
			   [Build tests without libunwind support]),
	    [], [with_libunwind=yes])
if test "x$with_libunwind" = xyes; then
	PKG_CHECK_MODULES(LIBUNWIND, libunwind, AC_DEFINE(HAVE_LIBUNWIND, 1, [libunwind support]),
			  AC_MSG_ERROR([libunwind not found. Use --without-libunwind to disable libunwind support.]))
fi

# enable debug symbols
AC_ARG_ENABLE(debug,
	      AS_HELP_STRING([--disable-debug],
			     [Build tests without debug symbols]),
	      [], [enable_debug=yes])

AC_ARG_ENABLE(werror,
	      AS_HELP_STRING([--enable-werror],
			     [Fail on warnings]),
	      [], [enable_werror=no])

if test "x$enable_debug" = xyes; then
	AS_COMPILER_FLAG([-g3], [DEBUG_CFLAGS="-g3"], [DEBUG_CFLAGS="-g"])
	AS_COMPILER_FLAG([-Og], [DEBUG_CFLAGS+=" -Og -Wno-maybe-uninitialized"], # disable maybe-uninitialized due to false positives
			 [DEBUG_CFLAGS+=" -O0"])
	AC_SUBST([DEBUG_CFLAGS])
fi

if test "x$enable_werror" = xyes; then
	AS_COMPILER_FLAG([-Werror], [WERROR_CFLAGS="-Werror"])
fi

# prevent relinking the world on every commit for developers
AC_ARG_ENABLE(git-hash,
	      AS_HELP_STRING([--disable-git-hash],
			     [Do not use git hash in version]),
	      [git_hash=$enableval], [git_hash=yes])
AC_SUBST(GIT_HASH, [$git_hash])

# -----------------------------------------------------------------------------

# To build multithread code, gcc uses -pthread, Solaris Studio cc uses -mt
XORG_TESTSET_CFLAG([THREAD_CFLAGS], [-pthread], [-mt])
AC_SUBST([THREAD_CFLAGS])

AC_ARG_ENABLE(tests,
	      AS_HELP_STRING([--disable-tests],
	      [Disable tests build (default: enabled)]),
	      [BUILD_TESTS=$enableval], [BUILD_TESTS="yes"])
if test "x$BUILD_TESTS" = xyes; then
	AC_DEFINE(BUILD_TESTS, 1, [Build tests])
fi
AM_CONDITIONAL(BUILD_TESTS, [test "x$BUILD_TESTS" = xyes])
AC_DEFINE_UNQUOTED(TARGET_CPU_PLATFORM, ["$host_cpu"], [Target platform])

files="broadwell cherryview haswell ivybridge sandybridge valleyview skylake"
for file in $files; do
	REGISTER_FILES="$REGISTER_FILES $file `cat $srcdir/tools/registers/$file`"
done
REGISTER_FILES=`echo $REGISTER_FILES | tr ' ' '\n' | sort -u | tr '\n' ' '`
AC_SUBST(REGISTER_FILES)

AC_CONFIG_FILES([
		 Makefile
		 benchmarks/Makefile
		 demos/Makefile
		 docs/Makefile
		 docs/reference/Makefile
		 docs/reference/intel-gpu-tools/Makefile
		 docs/reference/intel-gpu-tools/version.xml
		 lib/Makefile
		 lib/tests/Makefile
		 man/Makefile
		 scripts/Makefile
		 tests/Makefile
		 tools/Makefile
		 tools/null_state_gen/Makefile
		 tools/registers/Makefile
		 debugger/Makefile
		 debugger/system_routine/Makefile
		 assembler/Makefile
		 assembler/doc/Makefile
		 assembler/test/Makefile
		 assembler/intel-gen4asm.pc
		 overlay/Makefile
		 ])

AC_CONFIG_FILES([tools/intel_aubdump], [chmod +x tools/intel_aubdump])

AC_OUTPUT

# Print a summary of the compilation
echo ""
echo "Intel GPU tools"

echo ""
echo " • Tests:"
echo "       Build tests        : ${BUILD_TESTS}"
echo "       Compile prime tests: ${NOUVEAU}"
echo "       Print stack traces : ${with_libunwind}"
echo "       Debug flags        : ${DEBUG_CFLAGS}"
echo ""
echo " • Tools:"
echo "       Assembler          : ${enable_assembler}"
echo "       Debugger           : ${enable_debugger}"
echo "       Overlay            : X: ${enable_overlay_xlib}, Xv: ${enable_overlay_xvlib}"
echo "       x86-specific tools : ${build_x86}"
echo ""
echo " • API-Documentation      : ${enable_gtk_doc}"
echo " • Fail on warnings       : ${enable_werror}"
echo ""

# vim: set ft=config ts=8 sw=8 tw=0 noet :