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IABSD.fr/xenocara/lib/libdrm/configure.ac

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  • Author : jsg
    Date : 2018-11-01 08:29:47
    Hash : 41f63e84
    Message : Merge libdrm 2.4.96

  • lib/libdrm/configure.ac
  • #  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.
    
    AC_PREREQ([2.63])
    AC_INIT([libdrm],
            [2.4.96],
            [https://bugs.freedesktop.org/enter_bug.cgi?product=DRI],
            [libdrm])
    
    AC_CONFIG_HEADERS([config.h])
    AC_CONFIG_SRCDIR([Makefile.am])
    AC_CONFIG_MACRO_DIR([m4])
    AC_CONFIG_AUX_DIR([build-aux])
    PKG_PROG_PKG_CONFIG
    
    # Require xorg-macros minimum of 1.12 for XORG_WITH_XSLTPROC
    m4_ifndef([XORG_MACROS_VERSION],
              [m4_fatal([must install xorg-macros 1.12 or later before running autoconf/autogen])])
    XORG_MACROS_VERSION(1.12)
    XORG_WITH_XSLTPROC
    XORG_MANPAGE_SECTIONS
    
    AM_INIT_AUTOMAKE([1.10 foreign dist-bzip2])
    
    # Enable quiet compiles on automake 1.11.
    m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
    
    # Check for programs
    AC_PROG_CC
    AC_PROG_CC_C99
    AC_PROG_NM
    
    if test "x$ac_cv_prog_cc_c99" = xno; then
    	AC_MSG_ERROR([Building libdrm requires C99 enabled compiler])
    fi
    
    AC_USE_SYSTEM_EXTENSIONS
    AC_SYS_LARGEFILE
    AC_FUNC_ALLOCA
    
    save_CFLAGS="$CFLAGS"
    export CFLAGS="$CFLAGS -Werror"
    AC_HEADER_MAJOR
    CFLAGS="$save_CFLAGS"
    
    AC_CHECK_HEADERS([sys/sysctl.h sys/select.h])
    
    # Initialize libtool
    LT_PREREQ([2.2])
    LT_INIT([disable-static])
    
    dnl pthread-stubs is mandatory on some BSD platforms, due to the nature of the
    dnl project. Even then there's a notable issue as described in the project README
    case "$host_os" in
    linux* | cygwin* | darwin* | solaris* | *-gnu* | gnu* | openbsd*)
        pthread_stubs_possible="no"
        ;;
    * )
        pthread_stubs_possible="yes"
        ;;
    esac
    
    if test "x$pthread_stubs_possible" = xyes; then
        PKG_CHECK_MODULES(PTHREADSTUBS, pthread-stubs >= 0.4)
        AC_SUBST(PTHREADSTUBS_CFLAGS)
        AC_SUBST(PTHREADSTUBS_LIBS)
    fi
    
    pkgconfigdir=${libdir}/pkgconfig
    AC_SUBST(pkgconfigdir)
    libdrmdatadir=${datadir}/libdrm
    AC_SUBST(libdrmdatadir)
    
    AC_ARG_ENABLE([udev],
                  [AS_HELP_STRING([--enable-udev],
                                  [Enable support for using udev instead of mknod (default: disabled)])],
                  [UDEV=$enableval], [UDEV=no])
    
    AC_ARG_ENABLE(libkms,
    	      AS_HELP_STRING([--disable-libkms],
    	      [Disable KMS mm abstraction library (default: auto, enabled on supported platforms)]),
    	      [LIBKMS=$enableval], [LIBKMS=auto])
    
    AC_ARG_ENABLE(intel,
    	      AS_HELP_STRING([--disable-intel],
    	      [Enable support for intel's KMS API (default: auto, enabled on x86)]),
    	      [INTEL=$enableval], [INTEL=auto])
    
    AC_ARG_ENABLE(radeon,
    	      AS_HELP_STRING([--disable-radeon],
    	      [Enable support for radeon's KMS API (default: auto)]),
    	      [RADEON=$enableval], [RADEON=auto])
    
    AC_ARG_ENABLE(amdgpu,
    	      AS_HELP_STRING([--disable-amdgpu],
    	      [Enable support for amdgpu's KMS API (default: auto)]),
    	      [AMDGPU=$enableval], [AMDGPU=auto])
    
    AC_ARG_ENABLE(nouveau,
    	      AS_HELP_STRING([--disable-nouveau],
    	      [Enable support for nouveau's KMS API (default: auto)]),
    	      [NOUVEAU=$enableval], [NOUVEAU=auto])
    
    AC_ARG_ENABLE(vmwgfx,
    	      AS_HELP_STRING([--disable-vmwgfx],
    	      [Enable support for vmwgfx's KMS API (default: yes)]),
    	      [VMWGFX=$enableval], [VMWGFX=yes])
    
    AC_ARG_ENABLE(omap-experimental-api,
    	      AS_HELP_STRING([--enable-omap-experimental-api],
    	      [Enable support for OMAP's experimental API (default: disabled)]),
    	      [OMAP=$enableval], [OMAP=no])
    
    AC_ARG_ENABLE(exynos-experimental-api,
    	      AS_HELP_STRING([--enable-exynos-experimental-api],
    	      [Enable support for EXYNOS's experimental API (default: disabled)]),
    	      [EXYNOS=$enableval], [EXYNOS=no])
    
    AC_ARG_ENABLE(freedreno,
    	      AS_HELP_STRING([--disable-freedreno],
    	      [Enable support for freedreno's KMS API (default: auto, enabled on arm)]),
    	      [FREEDRENO=$enableval], [FREEDRENO=auto])
    
    AC_ARG_ENABLE(freedreno-kgsl,
    	      AS_HELP_STRING([--enable-freedreno-kgsl],
    	      [Enable support for freedreno's to use downstream android kernel API (default: disabled)]),
    	      [FREEDRENO_KGSL=$enableval], [FREEDRENO_KGSL=no])
    
    AC_ARG_ENABLE(tegra-experimental-api,
    	      AS_HELP_STRING([--enable-tegra-experimental-api],
    	      [Enable support for Tegra's experimental API (default: disabled)]),
    	      [TEGRA=$enableval], [TEGRA=no])
    
    AC_ARG_ENABLE(vc4,
    	      AS_HELP_STRING([--disable-vc4],
    	      [Enable support for vc4's API (default: auto, enabled on arm)]),
    	      [VC4=$enableval], [VC4=auto])
    
    AC_ARG_ENABLE(etnaviv-experimental-api,
    	      AS_HELP_STRING([--enable-etnaviv-experimental-api],
    	      [Enable support for etnaviv's experimental API (default: disabled)]),
    	      [ETNAVIV=$enableval], [ETNAVIV=no])
    
    AC_ARG_ENABLE(install-test-programs,
    		  AS_HELP_STRING([--enable-install-test-programs],
    		  [Install test programs (default: no)]),
    		  [INSTALL_TESTS=$enableval], [INSTALL_TESTS=no])
    
    dnl ===========================================================================
    dnl check compiler flags
    AC_DEFUN([LIBDRM_CC_TRY_FLAG], [
      AC_MSG_CHECKING([whether $CC supports $1])
    
      libdrm_save_CFLAGS="$CFLAGS"
      CFLAGS="$CFLAGS $1"
    
      AC_COMPILE_IFELSE([AC_LANG_SOURCE([ ])], [libdrm_cc_flag=yes], [libdrm_cc_flag=no])
      CFLAGS="$libdrm_save_CFLAGS"
    
      if test "x$libdrm_cc_flag" = "xyes"; then
        ifelse([$2], , :, [$2])
      else
        ifelse([$3], , :, [$3])
      fi
      AC_MSG_RESULT([$libdrm_cc_flag])
    ])
    
    dnl We use clock_gettime to check for timeouts in drmWaitVBlank
    
    AC_CHECK_FUNCS([clock_gettime], [CLOCK_LIB=],
                   [AC_CHECK_LIB([rt], [clock_gettime], [CLOCK_LIB=-lrt],
                                 [AC_MSG_ERROR([Couldn't find clock_gettime])])])
    AC_SUBST([CLOCK_LIB])
    
    AC_CHECK_FUNCS([open_memstream],
                   [AC_DEFINE([HAVE_OPEN_MEMSTREAM], 1, [Have open_memstream()])],
                   [AC_DEFINE([HAVE_OPEN_MEMSTREAM], 0)])
    
    dnl Use lots of warning flags with with gcc and compatible compilers
    
    dnl Note: if you change the following variable, the cache is automatically
    dnl skipped and all flags rechecked.  So there's no need to do anything
    dnl else.  If for any reason you need to force a recheck, just change
    dnl MAYBE_WARN in an ignorable way (like adding whitespace)
    
    MAYBE_WARN="-Wall -Wextra -Werror=undef \
    -Wsign-compare -Werror-implicit-function-declaration \
    -Wpointer-arith -Wwrite-strings -Wstrict-prototypes \
    -Wmissing-prototypes -Wmissing-declarations -Wnested-externs \
    -Wpacked -Wswitch-enum -Wmissing-format-attribute \
    -Wstrict-aliasing=2 -Winit-self \
    -Wdeclaration-after-statement -Wold-style-definition \
    -Wno-unused-parameter \
    -Wno-attributes -Wno-long-long -Winline -Wshadow \
    -Wno-missing-field-initializers"
    
    # invalidate cached value if MAYBE_WARN has changed
    if test "x$libdrm_cv_warn_maybe" != "x$MAYBE_WARN"; then
    	unset libdrm_cv_warn_cflags
    fi
    AC_CACHE_CHECK([for supported warning flags], libdrm_cv_warn_cflags, [
    	echo
    	WARN_CFLAGS=""
    
    	# Some warning options are not supported by all versions of
    	# gcc, so test all desired options against the current
    	# compiler.
    	#
    	# Note that there are some order dependencies
    	# here. Specifically, an option that disables a warning will
    	# have no net effect if a later option then enables that
    	# warnings, (perhaps implicitly). So we put some grouped
    	# options (-Wall and -Wextra) up front and the -Wno options
    	# last.
    
    	for W in $MAYBE_WARN; do
    		LIBDRM_CC_TRY_FLAG([$W], [WARN_CFLAGS="$WARN_CFLAGS $W"])
    	done
    
    	libdrm_cv_warn_cflags=$WARN_CFLAGS
    	libdrm_cv_warn_maybe=$MAYBE_WARN
    
    	AC_MSG_CHECKING([which warning flags were supported])])
    WARN_CFLAGS="$libdrm_cv_warn_cflags"
    
    # Check for atomic intrinsics
    AC_CACHE_CHECK([for native atomic primitives], drm_cv_atomic_primitives, [
    	drm_cv_atomic_primitives="none"
    
    	AC_LINK_IFELSE([AC_LANG_PROGRAM([[
    	int atomic_add(int *i) { return __sync_add_and_fetch (i, 1); }
    	int atomic_cmpxchg(int *i, int j, int k) { return __sync_val_compare_and_swap (i, j, k); }
    					  ]],[[]])], [drm_cv_atomic_primitives="Intel"],[])
    
    	if test "x$drm_cv_atomic_primitives" = "xnone"; then
    		AC_CHECK_HEADER([atomic_ops.h], drm_cv_atomic_primitives="libatomic-ops")
    	fi
    
    	# atomic functions defined in <atomic.h> & libc on Solaris
    	if test "x$drm_cv_atomic_primitives" = "xnone"; then
    		AC_CHECK_FUNC([atomic_cas_uint], drm_cv_atomic_primitives="Solaris")
    	fi
    ])
    
    if test "x$drm_cv_atomic_primitives" = xIntel; then
    	AC_DEFINE(HAVE_LIBDRM_ATOMIC_PRIMITIVES, 1,
    		[Enable if your compiler supports the Intel __sync_* atomic primitives])
    else
    	AC_DEFINE(HAVE_LIBDRM_ATOMIC_PRIMITIVES, 0)
    fi
    if test "x$drm_cv_atomic_primitives" = "xlibatomic-ops"; then
    	AC_DEFINE(HAVE_LIB_ATOMIC_OPS, 1, [Enable if you have libatomic-ops-dev installed])
    else
    	AC_DEFINE(HAVE_LIB_ATOMIC_OPS, 0)
    fi
    
    dnl Print out the approapriate message considering the value set be the
    dnl respective in $1.
    dnl $1 - value to be evaluated. Eg. $INTEL, $NOUVEAU, ...
    dnl $2 - libdrm shortname. Eg. intel, freedreno, ...
    dnl $3 - GPU name/brand. Eg. Intel, NVIDIA Tegra, ...
    dnl $4 - Configure switch. Eg. intel, omap-experimental-api, ...
    AC_DEFUN([LIBDRM_ATOMICS_NOT_FOUND_MSG], [
    	case "x$1" in
    		xyes)	AC_MSG_ERROR([libdrm_$2 depends upon atomic operations, which were not found for your compiler/cpu. Try compiling with -march=native, or install the libatomics-op-dev package, or, failing both of those, disable support for $3 GPUs by passing --disable-$4 to ./configure]) ;;
    		xauto)	AC_MSG_WARN([Disabling $2. It depends on atomic operations, which were not found for your compiler/cpu. Try compiling with -march=native, or install the libatomics-op-dev package.]) ;;
    		*)	;;
    	esac
    ])
    
    if test "x$drm_cv_atomic_primitives" = "xnone"; then
    	LIBDRM_ATOMICS_NOT_FOUND_MSG($INTEL, intel, Intel, intel)
    	INTEL=no
    
    	LIBDRM_ATOMICS_NOT_FOUND_MSG($RADEON, radeon, Radeon, radeon)
    	RADEON=no
    
    	LIBDRM_ATOMICS_NOT_FOUND_MSG($AMDGPU, amdgpu, AMD, amdgpu)
    	AMDGPU=no
    
    	LIBDRM_ATOMICS_NOT_FOUND_MSG($NOUVEAU, nouveau, NVIDIA, nouveau)
    	NOUVEAU=no
    
    	LIBDRM_ATOMICS_NOT_FOUND_MSG($OMAP, omap, OMAP, omap-experimental-api)
    	OMAP=no
    
    	LIBDRM_ATOMICS_NOT_FOUND_MSG($FREEDRENO, freedreno, Qualcomm Adreno, freedreno)
    	FREEDRENO=no
    
    	LIBDRM_ATOMICS_NOT_FOUND_MSG($TEGRA, tegra, NVIDIA Tegra, tegra-experimental-api)
    	TEGRA=no
    
    	LIBDRM_ATOMICS_NOT_FOUND_MSG($ETNAVIV, etnaviv, Vivante, etnaviv-experimental-api)
    	ETNAVIV=no
    else
    	if test "x$INTEL" = xauto; then
    		case $host_cpu in
    			i?86|x86_64)	INTEL=yes ;;
    			*)		INTEL=no ;;
    		esac
    	fi
    	if test "x$RADEON" = xauto; then
    		RADEON=yes
    	fi
    	if test "x$AMDGPU" = xauto; then
    		AMDGPU=yes
    	fi
    	if test "x$NOUVEAU" = xauto; then
    		NOUVEAU=yes
    	fi
    	if test "x$FREEDRENO" = xauto; then
    		case $host_cpu in
    			arm*|aarch64)	FREEDRENO=yes ;;
    			*)		FREEDRENO=no ;;
    		esac
    	fi
    	if test "x$VC4" = xauto; then
    		case $host_cpu in
    			arm*|aarch64)	VC4=yes ;;
    			*)		VC4=no ;;
    		esac
    	fi
    fi
    
    if test "x$INTEL" != "xno"; then
    	PKG_CHECK_MODULES(PCIACCESS, [pciaccess >= 0.10])
    fi
    AC_SUBST(PCIACCESS_CFLAGS)
    AC_SUBST(PCIACCESS_LIBS)
    
    if test "x$UDEV" = xyes; then
    	AC_DEFINE(UDEV, 1, [Have UDEV support])
    else
    	AC_DEFINE(UDEV, 0)
    fi
    
    AC_CANONICAL_HOST
    if test "x$LIBKMS" = xauto ; then
    	case $host_os in
    		linux*)		LIBKMS="yes" ;;
    		freebsd* | kfreebsd*-gnu)
    				LIBKMS="yes" ;;
    		dragonfly*)	LIBKMS="yes" ;;
    		*)		LIBKMS="no" ;;
    	esac
    fi
    
    AM_CONDITIONAL(HAVE_LIBKMS, [test "x$LIBKMS" = xyes])
    
    AM_CONDITIONAL(HAVE_INTEL, [test "x$INTEL" = xyes])
    if test "x$INTEL" = xyes; then
    	AC_DEFINE(HAVE_INTEL, 1, [Have intel support])
    else
    	AC_DEFINE(HAVE_INTEL, 0)
    fi
    
    AM_CONDITIONAL(HAVE_VMWGFX, [test "x$VMWGFX" = xyes])
    if test "x$VMWGFX" = xyes; then
    	AC_DEFINE(HAVE_VMWGFX, 1, [Have vmwgfx kernel headers])
    else
    	AC_DEFINE(HAVE_VMWGFX, 0)
    fi
    
    AM_CONDITIONAL(HAVE_NOUVEAU, [test "x$NOUVEAU" = xyes])
    if test "x$NOUVEAU" = xyes; then
    	AC_DEFINE(HAVE_NOUVEAU, 1, [Have nouveau (nvidia) support])
    else
    	AC_DEFINE(HAVE_NOUVEAU, 0)
    fi
    
    AM_CONDITIONAL(HAVE_OMAP, [test "x$OMAP" = xyes])
    
    AM_CONDITIONAL(HAVE_EXYNOS, [test "x$EXYNOS" = xyes])
    if test "x$EXYNOS" = xyes; then
    	AC_DEFINE(HAVE_EXYNOS, 1, [Have EXYNOS support])
    else
    	AC_DEFINE(HAVE_EXYNOS, 0)
    fi
    
    AM_CONDITIONAL(HAVE_FREEDRENO, [test "x$FREEDRENO" = xyes])
    
    if test "x$FREEDRENO_KGSL" = xyes; then
    	if test "x$FREEDRENO" != xyes; then
    		AC_MSG_ERROR([Cannot enable freedreno KGSL interface if freedreno is disabled])
    	fi
    fi
    AM_CONDITIONAL(HAVE_FREEDRENO_KGSL, [test "x$FREEDRENO_KGSL" = xyes])
    if test "x$FREEDRENO_KGSL" = xyes; then
    	AC_DEFINE(HAVE_FREEDRENO_KGSL, 1, [Have freedreno support for KGSL kernel interface])
    else
    	AC_DEFINE(HAVE_FREEDRENO_KGSL, 0)
    fi
    
    AM_CONDITIONAL(HAVE_RADEON, [test "x$RADEON" = xyes])
    if test "x$RADEON" = xyes; then
    	AC_DEFINE(HAVE_RADEON, 1, [Have radeon support])
    else
    	AC_DEFINE(HAVE_RADEON, 0)
    fi
    
    if test "x$AMDGPU" != xno; then
    	# Detect cunit library
    	PKG_CHECK_MODULES([CUNIT], [cunit >= 2.1], [have_cunit=yes], [have_cunit=no])
    	# If pkg-config does not find cunit, check it using AC_CHECK_LIB.  We
    	# do this because Debian (Ubuntu) lacks pkg-config file for cunit.
    	# fixed in 2.1-2.dfsg-3: http://anonscm.debian.org/cgit/collab-maint/cunit.git/commit/?h=debian
    	if test "x${have_cunit}" = "xno"; then
    		AC_CHECK_LIB([cunit], [CU_initialize_registry], [have_cunit=yes], [have_cunit=no])
    		if test "x${have_cunit}" = "xyes"; then
    			CUNIT_LIBS="-lcunit"
    			CUNIT_CFLAGS=""
    			AC_SUBST([CUNIT_LIBS])
    			AC_SUBST([CUNIT_CFLAGS])
    		fi
    	fi
    else
    	have_cunit=no
    fi
    AM_CONDITIONAL(HAVE_CUNIT, [test "x$have_cunit" != "xno"])
    
    AM_CONDITIONAL(HAVE_AMDGPU, [test "x$AMDGPU" = xyes])
    if test "x$AMDGPU" = xyes; then
    	AC_DEFINE(HAVE_AMDGPU, 1, [Have amdgpu support])
    
    	if test "x$have_cunit" = "xno"; then
    		AC_MSG_WARN([Could not find cunit library. Disabling amdgpu tests])
    	fi
    else
    	AC_DEFINE(HAVE_AMDGPU, 0)
    fi
    
    AM_CONDITIONAL(HAVE_TEGRA, [test "x$TEGRA" = xyes])
    
    AM_CONDITIONAL(HAVE_VC4, [test "x$VC4" = xyes])
    if test "x$VC4" = xyes; then
    	AC_DEFINE(HAVE_VC4, 1, [Have VC4 support])
    else
    	AC_DEFINE(HAVE_VC4, 0)
    fi
    
    AM_CONDITIONAL(HAVE_ETNAVIV, [test "x$ETNAVIV" = xyes])
    
    AM_CONDITIONAL(HAVE_INSTALL_TESTS, [test "x$INSTALL_TESTS" = xyes])
    
    AC_ARG_ENABLE([cairo-tests],
                  [AS_HELP_STRING([--enable-cairo-tests],
                                  [Enable support for Cairo rendering in tests (default: auto)])],
                  [CAIRO=$enableval], [CAIRO=auto])
    if test "x$CAIRO" != xno; then
    	PKG_CHECK_MODULES(CAIRO, cairo, [HAVE_CAIRO=yes], [HAVE_CAIRO=no])
    fi
    AC_MSG_CHECKING([whether to enable Cairo tests])
    if test "x$CAIRO" = xauto; then
    	CAIRO="$HAVE_CAIRO"
    fi
    if test "x$CAIRO" = xyes; then
    	if ! test "x$HAVE_CAIRO" = xyes; then
    		AC_MSG_ERROR([Cairo support required but not present])
    	fi
    	AC_DEFINE(HAVE_CAIRO, 1, [Have Cairo support])
    else
    	AC_DEFINE(HAVE_CAIRO, 0)
    fi
    AC_MSG_RESULT([$CAIRO])
    AM_CONDITIONAL(HAVE_CAIRO, [test "x$CAIRO" = xyes])
    
    # xsltproc for docbook manpages
    AC_ARG_ENABLE([manpages],
                  AS_HELP_STRING([--enable-manpages], [enable manpages @<:@default=auto@:>@]),
                  [MANS=$enableval], [MANS=auto])
    AM_CONDITIONAL([BUILD_MANPAGES], [test "x$XSLTPROC" != "x" -a "x$MANS" != "xno"])
    
    # check for offline man-pages stylesheet
    AC_MSG_CHECKING([for docbook manpages stylesheet])
    MANPAGES_STYLESHEET="http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl"
    AC_PATH_PROGS_FEATURE_CHECK([XSLTPROC_TMP], [xsltproc],
                                AS_IF([`"$ac_path_XSLTPROC_TMP" --nonet "$MANPAGES_STYLESHEET" > /dev/null 2>&1`],
                                      [HAVE_MANPAGES_STYLESHEET=yes]))
    if test "x$HAVE_MANPAGES_STYLESHEET" = "xyes"; then
            AC_SUBST(MANPAGES_STYLESHEET)
            AC_MSG_RESULT([yes])
    else
            AC_MSG_RESULT([no])
    fi
    AM_CONDITIONAL([HAVE_MANPAGES_STYLESHEET], [test "x$HAVE_MANPAGES_STYLESHEET" = "xyes"])
    
    AC_ARG_ENABLE(valgrind,
                  [AS_HELP_STRING([--enable-valgrind],
                                 [Build libdrm with  valgrind support (default: auto)])],
                                 [VALGRIND=$enableval], [VALGRIND=auto])
    if test "x$VALGRIND" != xno; then
    	PKG_CHECK_MODULES(VALGRIND, [valgrind], [have_valgrind=yes], [have_valgrind=no])
    fi
    AC_MSG_CHECKING([whether to enable Valgrind support])
    if test "x$VALGRIND" = xauto; then
    	VALGRIND="$have_valgrind"
    fi
    
    if test "x$VALGRIND" = "xyes"; then
    	if ! test "x$have_valgrind" = xyes; then
    		AC_MSG_ERROR([Valgrind support required but not present])
    	fi
    	AC_DEFINE([HAVE_VALGRIND], 1, [Use valgrind intrinsics to suppress false warnings])
    else
    	AC_DEFINE([HAVE_VALGRIND], 0)
    fi
    
    AC_MSG_RESULT([$VALGRIND])
    
    AC_ARG_WITH([kernel-source],
                [AS_HELP_STRING([--with-kernel-source],
                  [specify path to linux kernel source])],
    	    [kernel_source="$with_kernel_source"])
    AC_SUBST(kernel_source)
    
    AC_MSG_CHECKING([whether $CC supports __attribute__(("hidden"))])
    AC_LINK_IFELSE([AC_LANG_PROGRAM([
        int foo_hidden( void ) __attribute__((visibility("hidden")));
    ])], HAVE_ATTRIBUTE_VISIBILITY="yes"; AC_MSG_RESULT([yes]), AC_MSG_RESULT([no]));
    
    if test "x$HAVE_ATTRIBUTE_VISIBILITY" = xyes; then
        AC_DEFINE(HAVE_VISIBILITY, 1, [Compiler supports __attribute__(("hidden"))])
    else
        AC_DEFINE(HAVE_VISIBILITY, 0)
    fi
    
    CFLAGS="$CFLAGS -include config.h"
    
    AC_SUBST(WARN_CFLAGS)
    AC_CONFIG_FILES([
    	Makefile
    	data/Makefile
    	libkms/Makefile
    	libkms/libkms.pc
    	intel/Makefile
    	intel/libdrm_intel.pc
    	radeon/Makefile
    	radeon/libdrm_radeon.pc
    	amdgpu/Makefile
    	amdgpu/libdrm_amdgpu.pc
    	nouveau/Makefile
    	nouveau/libdrm_nouveau.pc
    	omap/Makefile
    	omap/libdrm_omap.pc
    	exynos/Makefile
    	exynos/libdrm_exynos.pc
    	freedreno/Makefile
    	freedreno/libdrm_freedreno.pc
    	tegra/Makefile
    	tegra/libdrm_tegra.pc
    	vc4/Makefile
    	vc4/libdrm_vc4.pc
    	etnaviv/Makefile
    	etnaviv/libdrm_etnaviv.pc
    	tests/Makefile
    	tests/modeprint/Makefile
    	tests/modetest/Makefile
    	tests/kms/Makefile
    	tests/kmstest/Makefile
    	tests/proptest/Makefile
    	tests/radeon/Makefile
    	tests/amdgpu/Makefile
    	tests/vbltest/Makefile
    	tests/exynos/Makefile
    	tests/tegra/Makefile
    	tests/nouveau/Makefile
    	tests/etnaviv/Makefile
    	tests/util/Makefile
    	man/Makefile
    	libdrm.pc])
    AC_OUTPUT
    
    echo ""
    echo "$PACKAGE_STRING will be compiled with:"
    echo ""
    echo "  libkms         $LIBKMS"
    echo "  Intel API      $INTEL"
    echo "  vmwgfx API     $VMWGFX"
    echo "  Radeon API     $RADEON"
    echo "  AMDGPU API     $AMDGPU"
    echo "  Nouveau API    $NOUVEAU"
    echo "  OMAP API       $OMAP"
    echo "  EXYNOS API     $EXYNOS"
    echo "  Freedreno API  $FREEDRENO (kgsl: $FREEDRENO_KGSL)"
    echo "  Tegra API      $TEGRA"
    echo "  VC4 API        $VC4"
    echo "  Etnaviv API    $ETNAVIV"
    echo ""