configure.ac - platform/external/harfbuzz_ng - Git at Google

 AC_PREREQ([2.64])
 AC_INIT([HarfBuzz],
         [0.9.14],
         [http://bugs.freedesktop.org/enter_bug.cgi?product=harfbuzz],
         [harfbuzz],
         [http://harfbuzz.org/])

 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_SRCDIR([harfbuzz.pc.in])
 AC_CONFIG_HEADERS([config.h])

 AM_INIT_AUTOMAKE([1.11.1 gnits dist-bzip2 no-dist-gzip -Wall no-define color-tests])
 AM_SILENT_RULES([yes])

 # Initialize libtool
 AM_PROG_AR
 LT_PREREQ([2.2])
 LT_INIT([disable-static])

 # Check for programs
 AC_PROG_CC
 AM_PROG_CC_C_O
 AC_PROG_CXX
 PKG_PROG_PKG_CONFIG([0.20])

 # Version
 m4_define(hb_version_triplet,m4_split(AC_PACKAGE_VERSION,[[.]]))
 m4_define(hb_version_major,m4_argn(1,hb_version_triplet))
 m4_define(hb_version_minor,m4_argn(2,hb_version_triplet))
 m4_define(hb_version_micro,m4_argn(3,hb_version_triplet))
 HB_VERSION_MAJOR=hb_version_major
 HB_VERSION_MINOR=hb_version_minor
 HB_VERSION_MICRO=hb_version_micro
 HB_VERSION=AC_PACKAGE_VERSION
 AC_SUBST(HB_VERSION_MAJOR)
 AC_SUBST(HB_VERSION_MINOR)
 AC_SUBST(HB_VERSION_MICRO)
 AC_SUBST(HB_VERSION)

 # Libtool version
 m4_define([hb_version_int],
 	  m4_eval(hb_version_major*10000 + hb_version_minor*100 + hb_version_micro))
 m4_if(m4_eval(hb_version_minor % 2), [1],
       dnl for unstable releases
       [m4_define([hb_libtool_revision], 0)],
       dnl for stable releases
       [m4_define([hb_libtool_revision], hb_version_micro)])
 m4_define([hb_libtool_age],
 	  m4_eval(hb_version_int - hb_libtool_revision))
 m4_define([hb_libtool_current],
 	  m4_eval(hb_version_major + hb_libtool_age))
 HB_LIBTOOL_VERSION_INFO=hb_libtool_current:hb_libtool_revision:hb_libtool_age
 AC_SUBST(HB_LIBTOOL_VERSION_INFO)

 dnl GOBJECT_INTROSPECTION_CHECK([0.9.0])
 dnl GTK_DOC_CHECK([1.15],[--flavour no-tmpl])

 # Functions and headers
 AC_CHECK_FUNCS(atexit mprotect sysconf getpagesize mmap isatty)
 AC_CHECK_HEADERS(unistd.h sys/mman.h)

 # Compiler flags
 AC_CANONICAL_HOST
 if test "x$GCC" = "xyes"; then

 	# Make symbols link locally
 	LDFLAGS="$LDFLAGS -Bsymbolic-functions"

 	# Make sure we don't link to libstdc++
 	CXXFLAGS="$CXXFLAGS -fno-rtti -fno-exceptions"

 	# Assorted warnings
 	CXXFLAGS="$CXXFLAGS -Wcast-align"

 	case "$host" in
 		*-*-mingw*)
 		;;
 		*)
 			# Hide inline methods
 			CXXFLAGS="$CXXFLAGS -fvisibility-inlines-hidden"
 		;;
 	esac

 	case "$host" in
 		arm-*-*)
 			# Request byte alignment on arm
 			CXXFLAGS="$CXXFLAGS -mstructure-size-boundary=8"
 		;;
 	esac
 fi

 AM_CONDITIONAL(HAVE_GCC, test "x$GCC" = "xyes")

 hb_os_win32=no
 AC_MSG_CHECKING([for native Win32])
 case "$host" in
   *-*-mingw*)
     hb_os_win32=yes
     ;;
 esac
 AC_MSG_RESULT([$hb_os_win32])
 AM_CONDITIONAL(OS_WIN32, test "$hb_os_win32" = "yes")

 have_pthread=false
 if test "$hb_os_win32" = no; then
 	AX_PTHREAD([have_pthread=true])
 fi
 if $have_pthread; then
 	AC_DEFINE(HAVE_PTHREAD, 1, [Have POSIX threads])
 fi
 AM_CONDITIONAL(HAVE_PTHREAD, $have_pthread)

 dnl ==========================================================================

 have_ot=true
 if $have_ot; then
 	AC_DEFINE(HAVE_OT, 1, [Have native OpenType Layout backend])
 fi
 AM_CONDITIONAL(HAVE_OT, $have_ot)

 dnl ===========================================================================

 have_hb_old=true
 if $have_hb_old; then
 	AC_DEFINE(HAVE_HB_OLD, 1, [Have Old HarfBuzz backend])
 fi
 AM_CONDITIONAL(HAVE_HB_OLD, $have_hb_old)

 dnl ===========================================================================

 have_ucdn=true
 if $have_ucdn; then
 	AC_DEFINE(HAVE_UCDN, 1, [Have UCDN Unicode functions])
 fi
 AM_CONDITIONAL(HAVE_UCDN, $have_ucdn)

 dnl ===========================================================================

 PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.16, have_glib=true, have_glib=false)
 if $have_glib; then
 	AC_DEFINE(HAVE_GLIB, 1, [Have glib2 library])
 fi
 AM_CONDITIONAL(HAVE_GLIB, $have_glib)

 PKG_CHECK_MODULES(GTHREAD, gthread-2.0, have_gthread=true, have_gthread=false)
 if $have_gthread; then
 	AC_DEFINE(HAVE_GTHREAD, 1, [Have gthread2 library])
 fi
 AM_CONDITIONAL(HAVE_GTHREAD, $have_gthread)

 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 glib-2.0 >= 2.16, have_gobject=true, have_gobject=false)
 if $have_gobject; then
 	AC_DEFINE(HAVE_GOBJECT, 1, [Have gobject2 library])
 	GLIB_MKENUMS=`$PKG_CONFIG --variable=glib_mkenums glib-2.0`
 	AC_SUBST(GLIB_MKENUMS)
 fi
 AM_CONDITIONAL(HAVE_GOBJECT, $have_gobject)

 dnl ==========================================================================

 PKG_CHECK_MODULES(CAIRO, cairo >= 1.8.0, have_cairo=true, have_cairo=false)
 if $have_cairo; then
 	AC_DEFINE(HAVE_CAIRO, 1, [Have cairo graphics library])
 fi
 AM_CONDITIONAL(HAVE_CAIRO, $have_cairo)

 PKG_CHECK_MODULES(CAIRO_FT, cairo-ft, have_cairo_ft=true, have_cairo_ft=false)
 if $have_cairo_ft; then
 	AC_DEFINE(HAVE_CAIRO_FT, 1, [Have cairo-ft support in cairo graphics library])
 fi
 AM_CONDITIONAL(HAVE_CAIRO_FT, $have_cairo_ft)

 dnl ==========================================================================

 PKG_CHECK_MODULES(ICU, icu-uc, have_icu=true, have_icu=false)
 dnl Fallback to icu-config if ICU pkg-config files could not be found
 if test "$have_icu" != "true"; then
 	AC_PATH_PROG(icu_config, icu-config, no)
 	AC_MSG_CHECKING([for ICU by using icu-config fallback])
 	if test "$icu_config" != "no" && "$icu_config" --version >/dev/null; then
 		have_icu=true
 		# We don't use --cflags as this gives us a lot of things that we don't
 		# necessarily want, like debugging and optimization flags
 		# See man (1) icu-config for more info.
 		ICU_CFLAGS=`$icu_config --cppflags`
 		ICU_LIBS=`$icu_config --ldflags-libsonly`
 		AC_SUBST(ICU_CFLAGS)
 		AC_SUBST(ICU_LIBS)
 		AC_MSG_RESULT([yes])
 	else
 		AC_MSG_RESULT([no])
 	fi
 fi

 if $have_icu; then
 	CXXFLAGS="$CXXFLAGS `$PKG_CONFIG --variable=CXXFLAGS icu-uc`"
 	AC_DEFINE(HAVE_ICU, 1, [Have ICU library])
 fi
 AM_CONDITIONAL(HAVE_ICU, $have_icu)

 dnl ==========================================================================

 PKG_CHECK_MODULES(ICU_LE, icu-le icu-uc, have_icu_le=true, have_icu_le=false)
 dnl Fallback to icu-config if ICU pkg-config files could not be found
 if test "$have_icu_le" != "true"; then
 	AC_PATH_PROG(icu_config, icu-config, no)
 	AC_MSG_CHECKING([for ICU_LE by using icu-config fallback])
 	if test "$icu_config" != "no" && "$icu_config" --version >/dev/null; then
 		have_icu_le=true
 		# We don't use --cflags as this gives us a lot of things that we don't
 		# necessarily want, like debugging and optimization flags
 		# See man (1) icu-config for more info.
 		ICU_LE_CFLAGS=`$icu_config --cppflags`
 		ICU_LE_LIBS=`$icu_config --ldflags-libsonly --ldflags-layout`
 		AC_SUBST(ICU_LE_CFLAGS)
 		AC_SUBST(ICU_LE_LIBS)
 		AC_MSG_RESULT([yes])
 	else
 		AC_MSG_RESULT([no])
 	fi
 fi
 if $have_icu_le; then
 	AC_DEFINE(HAVE_ICU_LE, 1, [Have ICU Layout Engine library])
 fi
 AM_CONDITIONAL(HAVE_ICU_LE, $have_icu_le)

 dnl ==========================================================================

 PKG_CHECK_MODULES(GRAPHITE2, graphite2, have_graphite=true, have_graphite=false)
 if $have_graphite; then
     AC_DEFINE(HAVE_GRAPHITE2, 1, [Have Graphite library])
 fi
 AM_CONDITIONAL(HAVE_GRAPHITE2, $have_graphite)

 dnl ==========================================================================

 PKG_CHECK_MODULES(FREETYPE, freetype2 >= 2.3.8, have_freetype=true, have_freetype=false)
 if $have_freetype; then
 	AC_DEFINE(HAVE_FREETYPE, 1, [Have FreeType 2 library])
 	_save_libs="$LIBS"
 	_save_cflags="$CFLAGS"
 	LIBS="$LIBS $FREETYPE_LIBS"
 	CFLAGS="$CFLAGS $FREETYPE_CFLAGS"
 	AC_CHECK_FUNCS(FT_Face_GetCharVariantIndex)
 	LIBS="$_save_libs"
 	CFLAGS="$_save_cflags"
 fi
 AM_CONDITIONAL(HAVE_FREETYPE, $have_freetype)

 dnl ===========================================================================

 AC_MSG_CHECKING([for ScriptShapeOpenType in usp10])
 saved_LIBS=$LIBS
 LIBS="$LIBS -lusp10 -lgdi32"
 AC_LINK_IFELSE([AC_LANG_PROGRAM(
 	[[
 	 #define _WIN32_WINNT 0x0600
 	 #include <windows.h>
 	 #include <usp10.h>
 	 ]],
 	ScriptShapeOpenType)],
 	[have_uniscribe=true; AC_MSG_RESULT(yes)],
 	[have_uniscribe=false;AC_MSG_RESULT(no)])
 LIBS=$saved_LIBS
 if $have_uniscribe; then
 	UNISCRIBE_CFLAGS=
 	UNISCRIBE_LIBS="-lusp10 -lgdi32"
 	AC_SUBST(UNISCRIBE_CFLAGS)
 	AC_SUBST(UNISCRIBE_LIBS)
 	AC_DEFINE(HAVE_UNISCRIBE, 1, [Have Uniscribe backend])
 fi
 AM_CONDITIONAL(HAVE_UNISCRIBE, $have_uniscribe)

 dnl ===========================================================================

 AC_CHECK_TYPE(CTFontRef, have_coretext=true, have_coretext=false, [#include <ApplicationServices/ApplicationServices.h>])
 if $have_coretext; then
 	CORETEXT_CFLAGS=
 	CORETEXT_LIBS="-framework ApplicationServices"
 	AC_SUBST(CORETEXT_CFLAGS)
 	AC_SUBST(CORETEXT_LIBS)
 	AC_DEFINE(HAVE_CORETEXT, 1, [Have Core Text backend])
 fi
 AM_CONDITIONAL(HAVE_CORETEXT, $have_coretext)

 dnl ===========================================================================

 AC_CACHE_CHECK([for Intel atomic primitives], hb_cv_have_intel_atomic_primitives, [
 	hb_cv_have_intel_atomic_primitives=false
 	AC_TRY_LINK([
 		void memory_barrier (void) { __sync_synchronize (); }
 		int atomic_add (int *i) { return __sync_fetch_and_add (i, 1); }
 		int mutex_trylock (int *m) { return __sync_lock_test_and_set (m, 1); }
 		void mutex_unlock (int *m) { __sync_lock_release (m); }
 		], [], hb_cv_have_intel_atomic_primitives=true
 	)
 ])
 if $hb_cv_have_intel_atomic_primitives; then
 	AC_DEFINE(HAVE_INTEL_ATOMIC_PRIMITIVES, 1, [Have Intel __sync_* atomic primitives])
 fi

 dnl ===========================================================================

 AC_CACHE_CHECK([for Solaris atomic operations], hb_cv_have_solaris_atomic_ops, [
 	hb_cv_have_solaris_atomic_ops=false
 	AC_TRY_LINK([
 		#include <atomic.h>
 		/* This requires Solaris Studio 12.2 or newer: */
 		#include <mbarrier.h>
 		void memory_barrier (void) { __machine_rw_barrier (); }
 		int atomic_add (volatile unsigned *i) { return atomic_add_int_nv (i, 1); }
 		void *atomic_ptr_cmpxchg (volatile void **target, void *cmp, void *newval) { return atomic_cas_ptr (target, cmp, newval); }
 		], [], hb_cv_have_solaris_atomic_ops=true
 	)
 ])
 if $hb_cv_have_solaris_atomic_ops; then
 	AC_DEFINE(HAVE_SOLARIS_ATOMIC_OPS, 1, [Have Solaris __machine_*_barrier and atomic_* operations])
 fi

 if test "$os_win32" = no && ! $have_pthread; then
 	AC_CHECK_HEADERS(sched.h)
 	AC_SEARCH_LIBS(sched_yield,rt,AC_DEFINE(HAVE_SCHED_YIELD, 1, [Have sched_yield]))
 fi

 dnl ===========================================================================

 AC_CONFIG_FILES([
 Makefile
 harfbuzz.pc
 src/Makefile
 src/hb-version.h
 src/hb-icu-le/Makefile
 src/hb-old/Makefile
 src/hb-ucdn/Makefile
 util/Makefile
 test/Makefile
 test/api/Makefile
 test/shaping/Makefile
 ])

 AC_OUTPUT

 AC_MSG_NOTICE([

 Build configuration:

 Unicode callbacks (you want at least one):
 	Glib:			${have_glib}
 	ICU:			${have_icu}
 	UCDN:			${have_ucdn}

 Font callbacks (the more the better):
 	FreeType:		${have_freetype}

 Tools used for command-line utilities:
 	Cairo:			${have_cairo}

 Additional shapers (the more the better):
 	Graphite2:		${have_graphite}

 Test / platform shapers (not normally needed):
 	CoreText:		${have_coretext}
 	ICU Layout Engine:	${have_icu_le}
 	Old HarfBuzz:		${have_hb_old}
 	Uniscribe:		${have_uniscribe}
 ])
	AC_PREREQ([2.64])
	AC_INIT([HarfBuzz],
	[0.9.14],
	[http://bugs.freedesktop.org/enter_bug.cgi?product=harfbuzz],
	[harfbuzz],
	[http://harfbuzz.org/])

	AC_CONFIG_MACRO_DIR([m4])
	AC_CONFIG_SRCDIR([harfbuzz.pc.in])
	AC_CONFIG_HEADERS([config.h])

	AM_INIT_AUTOMAKE([1.11.1 gnits dist-bzip2 no-dist-gzip -Wall no-define color-tests])
	AM_SILENT_RULES([yes])

	# Initialize libtool
	AM_PROG_AR
	LT_PREREQ([2.2])
	LT_INIT([disable-static])

	# Check for programs
	AC_PROG_CC
	AM_PROG_CC_C_O
	AC_PROG_CXX
	PKG_PROG_PKG_CONFIG([0.20])

	# Version
	m4_define(hb_version_triplet,m4_split(AC_PACKAGE_VERSION,[[.]]))
	m4_define(hb_version_major,m4_argn(1,hb_version_triplet))
	m4_define(hb_version_minor,m4_argn(2,hb_version_triplet))
	m4_define(hb_version_micro,m4_argn(3,hb_version_triplet))
	HB_VERSION_MAJOR=hb_version_major
	HB_VERSION_MINOR=hb_version_minor
	HB_VERSION_MICRO=hb_version_micro
	HB_VERSION=AC_PACKAGE_VERSION
	AC_SUBST(HB_VERSION_MAJOR)
	AC_SUBST(HB_VERSION_MINOR)
	AC_SUBST(HB_VERSION_MICRO)
	AC_SUBST(HB_VERSION)

	# Libtool version
	m4_define([hb_version_int],
	m4_eval(hb_version_major10000 + hb_version_minor100 + hb_version_micro))
	m4_if(m4_eval(hb_version_minor % 2), [1],
	dnl for unstable releases
	[m4_define([hb_libtool_revision], 0)],
	dnl for stable releases
	[m4_define([hb_libtool_revision], hb_version_micro)])
	m4_define([hb_libtool_age],
	m4_eval(hb_version_int - hb_libtool_revision))
	m4_define([hb_libtool_current],
	m4_eval(hb_version_major + hb_libtool_age))
	HB_LIBTOOL_VERSION_INFO=hb_libtool_current:hb_libtool_revision:hb_libtool_age
	AC_SUBST(HB_LIBTOOL_VERSION_INFO)

	dnl GOBJECT_INTROSPECTION_CHECK([0.9.0])
	dnl GTK_DOC_CHECK([1.15],[--flavour no-tmpl])

	# Functions and headers
	AC_CHECK_FUNCS(atexit mprotect sysconf getpagesize mmap isatty)
	AC_CHECK_HEADERS(unistd.h sys/mman.h)

	# Compiler flags
	AC_CANONICAL_HOST
	if test "x$GCC" = "xyes"; then

	# Make symbols link locally
	LDFLAGS="$LDFLAGS -Bsymbolic-functions"

	# Make sure we don't link to libstdc++
	CXXFLAGS="$CXXFLAGS -fno-rtti -fno-exceptions"

	# Assorted warnings
	CXXFLAGS="$CXXFLAGS -Wcast-align"

	case "$host" in
	--mingw*)
	;;
	*)
	# Hide inline methods
	CXXFLAGS="$CXXFLAGS -fvisibility-inlines-hidden"
	;;
	esac

	case "$host" in
	arm--)
	# Request byte alignment on arm
	CXXFLAGS="$CXXFLAGS -mstructure-size-boundary=8"
	;;
	esac
	fi

	AM_CONDITIONAL(HAVE_GCC, test "x$GCC" = "xyes")

	hb_os_win32=no
	AC_MSG_CHECKING([for native Win32])
	case "$host" in
	--mingw*)
	hb_os_win32=yes
	;;
	esac
	AC_MSG_RESULT([$hb_os_win32])
	AM_CONDITIONAL(OS_WIN32, test "$hb_os_win32" = "yes")

	have_pthread=false
	if test "$hb_os_win32" = no; then
	AX_PTHREAD([have_pthread=true])
	fi
	if $have_pthread; then
	AC_DEFINE(HAVE_PTHREAD, 1, [Have POSIX threads])
	fi
	AM_CONDITIONAL(HAVE_PTHREAD, $have_pthread)

	dnl ==========================================================================

	have_ot=true
	if $have_ot; then
	AC_DEFINE(HAVE_OT, 1, [Have native OpenType Layout backend])
	fi
	AM_CONDITIONAL(HAVE_OT, $have_ot)

	dnl ===========================================================================

	have_hb_old=true
	if $have_hb_old; then
	AC_DEFINE(HAVE_HB_OLD, 1, [Have Old HarfBuzz backend])
	fi
	AM_CONDITIONAL(HAVE_HB_OLD, $have_hb_old)

	dnl ===========================================================================

	have_ucdn=true
	if $have_ucdn; then
	AC_DEFINE(HAVE_UCDN, 1, [Have UCDN Unicode functions])
	fi
	AM_CONDITIONAL(HAVE_UCDN, $have_ucdn)

	dnl ===========================================================================

	PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.16, have_glib=true, have_glib=false)
	if $have_glib; then
	AC_DEFINE(HAVE_GLIB, 1, [Have glib2 library])
	fi
	AM_CONDITIONAL(HAVE_GLIB, $have_glib)

	PKG_CHECK_MODULES(GTHREAD, gthread-2.0, have_gthread=true, have_gthread=false)
	if $have_gthread; then
	AC_DEFINE(HAVE_GTHREAD, 1, [Have gthread2 library])
	fi
	AM_CONDITIONAL(HAVE_GTHREAD, $have_gthread)

	PKG_CHECK_MODULES(GOBJECT, gobject-2.0 glib-2.0 >= 2.16, have_gobject=true, have_gobject=false)
	if $have_gobject; then
	AC_DEFINE(HAVE_GOBJECT, 1, [Have gobject2 library])
	GLIB_MKENUMS=`$PKG_CONFIG --variable=glib_mkenums glib-2.0`
	AC_SUBST(GLIB_MKENUMS)
	fi
	AM_CONDITIONAL(HAVE_GOBJECT, $have_gobject)

	dnl ==========================================================================

	PKG_CHECK_MODULES(CAIRO, cairo >= 1.8.0, have_cairo=true, have_cairo=false)
	if $have_cairo; then
	AC_DEFINE(HAVE_CAIRO, 1, [Have cairo graphics library])
	fi
	AM_CONDITIONAL(HAVE_CAIRO, $have_cairo)

	PKG_CHECK_MODULES(CAIRO_FT, cairo-ft, have_cairo_ft=true, have_cairo_ft=false)
	if $have_cairo_ft; then
	AC_DEFINE(HAVE_CAIRO_FT, 1, [Have cairo-ft support in cairo graphics library])
	fi
	AM_CONDITIONAL(HAVE_CAIRO_FT, $have_cairo_ft)

	dnl ==========================================================================

	PKG_CHECK_MODULES(ICU, icu-uc, have_icu=true, have_icu=false)
	dnl Fallback to icu-config if ICU pkg-config files could not be found
	if test "$have_icu" != "true"; then
	AC_PATH_PROG(icu_config, icu-config, no)
	AC_MSG_CHECKING([for ICU by using icu-config fallback])
	if test "$icu_config" != "no" && "$icu_config" --version >/dev/null; then
	have_icu=true
	# We don't use --cflags as this gives us a lot of things that we don't
	# necessarily want, like debugging and optimization flags
	# See man (1) icu-config for more info.
	ICU_CFLAGS=`$icu_config --cppflags`
	ICU_LIBS=`$icu_config --ldflags-libsonly`
	AC_SUBST(ICU_CFLAGS)
	AC_SUBST(ICU_LIBS)
	AC_MSG_RESULT([yes])
	else
	AC_MSG_RESULT([no])
	fi
	fi

	if $have_icu; then
	CXXFLAGS="$CXXFLAGS `$PKG_CONFIG --variable=CXXFLAGS icu-uc`"
	AC_DEFINE(HAVE_ICU, 1, [Have ICU library])
	fi
	AM_CONDITIONAL(HAVE_ICU, $have_icu)

	dnl ==========================================================================

	PKG_CHECK_MODULES(ICU_LE, icu-le icu-uc, have_icu_le=true, have_icu_le=false)
	dnl Fallback to icu-config if ICU pkg-config files could not be found
	if test "$have_icu_le" != "true"; then
	AC_PATH_PROG(icu_config, icu-config, no)
	AC_MSG_CHECKING([for ICU_LE by using icu-config fallback])
	if test "$icu_config" != "no" && "$icu_config" --version >/dev/null; then
	have_icu_le=true
	# We don't use --cflags as this gives us a lot of things that we don't
	# necessarily want, like debugging and optimization flags
	# See man (1) icu-config for more info.
	ICU_LE_CFLAGS=`$icu_config --cppflags`
	ICU_LE_LIBS=`$icu_config --ldflags-libsonly --ldflags-layout`
	AC_SUBST(ICU_LE_CFLAGS)
	AC_SUBST(ICU_LE_LIBS)
	AC_MSG_RESULT([yes])
	else
	AC_MSG_RESULT([no])
	fi
	fi
	if $have_icu_le; then
	AC_DEFINE(HAVE_ICU_LE, 1, [Have ICU Layout Engine library])
	fi
	AM_CONDITIONAL(HAVE_ICU_LE, $have_icu_le)

	dnl ==========================================================================

	PKG_CHECK_MODULES(GRAPHITE2, graphite2, have_graphite=true, have_graphite=false)
	if $have_graphite; then
	AC_DEFINE(HAVE_GRAPHITE2, 1, [Have Graphite library])
	fi
	AM_CONDITIONAL(HAVE_GRAPHITE2, $have_graphite)

	dnl ==========================================================================

	PKG_CHECK_MODULES(FREETYPE, freetype2 >= 2.3.8, have_freetype=true, have_freetype=false)
	if $have_freetype; then
	AC_DEFINE(HAVE_FREETYPE, 1, [Have FreeType 2 library])
	_save_libs="$LIBS"
	_save_cflags="$CFLAGS"
	LIBS="$LIBS $FREETYPE_LIBS"
	CFLAGS="$CFLAGS $FREETYPE_CFLAGS"
	AC_CHECK_FUNCS(FT_Face_GetCharVariantIndex)
	LIBS="$_save_libs"
	CFLAGS="$_save_cflags"
	fi
	AM_CONDITIONAL(HAVE_FREETYPE, $have_freetype)

	dnl ===========================================================================

	AC_MSG_CHECKING([for ScriptShapeOpenType in usp10])
	saved_LIBS=$LIBS
	LIBS="$LIBS -lusp10 -lgdi32"
	AC_LINK_IFELSE([AC_LANG_PROGRAM(
	[[
	#define _WIN32_WINNT 0x0600
	#include <windows.h>
	#include <usp10.h>
	]],
	ScriptShapeOpenType)],
	[have_uniscribe=true; AC_MSG_RESULT(yes)],
	[have_uniscribe=false;AC_MSG_RESULT(no)])
	LIBS=$saved_LIBS
	if $have_uniscribe; then
	UNISCRIBE_CFLAGS=
	UNISCRIBE_LIBS="-lusp10 -lgdi32"
	AC_SUBST(UNISCRIBE_CFLAGS)
	AC_SUBST(UNISCRIBE_LIBS)
	AC_DEFINE(HAVE_UNISCRIBE, 1, [Have Uniscribe backend])
	fi
	AM_CONDITIONAL(HAVE_UNISCRIBE, $have_uniscribe)

	dnl ===========================================================================

	AC_CHECK_TYPE(CTFontRef, have_coretext=true, have_coretext=false, [#include <ApplicationServices/ApplicationServices.h>])
	if $have_coretext; then
	CORETEXT_CFLAGS=
	CORETEXT_LIBS="-framework ApplicationServices"
	AC_SUBST(CORETEXT_CFLAGS)
	AC_SUBST(CORETEXT_LIBS)
	AC_DEFINE(HAVE_CORETEXT, 1, [Have Core Text backend])
	fi
	AM_CONDITIONAL(HAVE_CORETEXT, $have_coretext)

	dnl ===========================================================================

	AC_CACHE_CHECK([for Intel atomic primitives], hb_cv_have_intel_atomic_primitives, [
	hb_cv_have_intel_atomic_primitives=false
	AC_TRY_LINK([
	void memory_barrier (void) { __sync_synchronize (); }
	int atomic_add (int *i) { return __sync_fetch_and_add (i, 1); }
	int mutex_trylock (int *m) { return __sync_lock_test_and_set (m, 1); }
	void mutex_unlock (int *m) { __sync_lock_release (m); }
	], [], hb_cv_have_intel_atomic_primitives=true
	)
	])
	if $hb_cv_have_intel_atomic_primitives; then
	AC_DEFINE(HAVE_INTEL_ATOMIC_PRIMITIVES, 1, [Have Intel __sync_* atomic primitives])
	fi

	dnl ===========================================================================

	AC_CACHE_CHECK([for Solaris atomic operations], hb_cv_have_solaris_atomic_ops, [
	hb_cv_have_solaris_atomic_ops=false
	AC_TRY_LINK([
	#include <atomic.h>
	/* This requires Solaris Studio 12.2 or newer: */
	#include <mbarrier.h>
	void memory_barrier (void) { __machine_rw_barrier (); }
	int atomic_add (volatile unsigned *i) { return atomic_add_int_nv (i, 1); }
	void atomic_ptr_cmpxchg (volatile void target, void cmp, void *newval) { return atomic_cas_ptr (target, cmp, newval); }
	], [], hb_cv_have_solaris_atomic_ops=true
	)
	])
	if $hb_cv_have_solaris_atomic_ops; then
	AC_DEFINE(HAVE_SOLARIS_ATOMIC_OPS, 1, [Have Solaris __machine__barrier and atomic_ operations])
	fi

	if test "$os_win32" = no && ! $have_pthread; then
	AC_CHECK_HEADERS(sched.h)
	AC_SEARCH_LIBS(sched_yield,rt,AC_DEFINE(HAVE_SCHED_YIELD, 1, [Have sched_yield]))
	fi

	dnl ===========================================================================

	AC_CONFIG_FILES([
	Makefile
	harfbuzz.pc
	src/Makefile
	src/hb-version.h
	src/hb-icu-le/Makefile
	src/hb-old/Makefile
	src/hb-ucdn/Makefile
	util/Makefile
	test/Makefile
	test/api/Makefile
	test/shaping/Makefile
	])

	AC_OUTPUT

	AC_MSG_NOTICE([

	Build configuration:

	Unicode callbacks (you want at least one):
	Glib: ${have_glib}
	ICU: ${have_icu}
	UCDN: ${have_ucdn}

	Font callbacks (the more the better):
	FreeType: ${have_freetype}

	Tools used for command-line utilities:
	Cairo: ${have_cairo}

	Additional shapers (the more the better):
	Graphite2: ${have_graphite}

	Test / platform shapers (not normally needed):
	CoreText: ${have_coretext}
	ICU Layout Engine: ${have_icu_le}
	Old HarfBuzz: ${have_hb_old}
	Uniscribe: ${have_uniscribe}
	])