m4_define([LIBASS_VERSION], [0.15.2])
AC_INIT(libass, LIBASS_VERSION)
AM_INIT_AUTOMAKE([foreign])
AC_CONFIG_MACRO_DIR([m4])
# Disable Fortran checks
define([AC_LIBTOOL_LANG_F77_CONFIG], [:])
LT_INIT
AC_CONFIG_SRCDIR([libass/ass.c])
AC_CONFIG_HEADERS([config.h])
# Checks for programs.
AC_PROG_CC
AM_PROG_CC_C_O
# Checks for header files.
AC_CHECK_HEADERS_ONCE([iconv.h])
# Checks for library functions.
AC_CHECK_FUNCS([strdup strndup])
# Query configuration parameters and set their description
AC_ARG_ENABLE([test], AS_HELP_STRING([--enable-test],
[enable test program (requires libpng) @<:@default=no@:>@]))
AC_ARG_ENABLE([compare], AS_HELP_STRING([--enable-compare],
[enable compare program (requires libpng) @<:@default=no@:>@]))
AC_ARG_ENABLE([profile], AS_HELP_STRING([--enable-profile],
[enable profiling program @<:@default=no@:>@]))
AC_ARG_ENABLE([fontconfig], AS_HELP_STRING([--disable-fontconfig],
[disable fontconfig support @<:@default=enabled@:>@]))
AC_ARG_ENABLE([directwrite], AS_HELP_STRING([--disable-directwrite],
[disable DirectWrite support (Windows only) @<:@default=check@:>@]))
AC_ARG_ENABLE([coretext], AS_HELP_STRING([--disable-coretext],
[disable CoreText support (OSX only) @<:@default=check@:>@]))
AC_ARG_ENABLE([require-system-font-provider], AS_HELP_STRING([--disable-require-system-font-provider],
[allow compilation even if no system font provider was found @<:@default=enabled:>@]))
AC_ARG_ENABLE([asm], AS_HELP_STRING([--disable-asm],
[disable compiling with ASM @<:@default=check@:>@]))
AC_ARG_ENABLE([large-tiles], AS_HELP_STRING([--enable-large-tiles],
[use larger tiles in the rasterizer (better performance, slightly worse quality) @<:@default=disabled@:>@]))
# Checks for available libraries and define corresponding C Macros
# Start with system libs, then check everything else via pkg-config
AS_IF([test "x$ac_cv_header_iconv_h" = xyes], [
## Some iconv libraries like GNU's libiconv define iconv_open as a macro to
## libiconv_open. As SEARCH_LIBS tests linking not compilation, check for
## libiconv_open first. SEARCH_LIBS is smart enough to not add -liconv a second
## time in case both versions are defined in the local libiconv.
use_libiconv=false
AC_SEARCH_LIBS([libiconv_open], [iconv], [
use_libiconv=true
])
AC_SEARCH_LIBS([iconv_open], [iconv], [
use_libiconv=true
])
AS_IF([test "x$use_libiconv" = xtrue], [
AC_DEFINE(CONFIG_ICONV, 1, [use iconv])
])
])
# Locate math functions. Most systems have it either in libc or libm, but a few
# have some, eg C89, functions in libc and others in libm. Use C99 lrint to probe.
AC_SEARCH_LIBS([lrint], [m], [
# noop
], [
AC_MSG_ERROR([Unable to locate math functions!])
])
pkg_libs="$LIBS"
## Check for libraries via pkg-config
PKG_CHECK_MODULES([FREETYPE], [freetype2 >= 9.10.3], [
CFLAGS="$CFLAGS $FREETYPE_CFLAGS"
LIBS="$LIBS $FREETYPE_LIBS"
AC_DEFINE(CONFIG_FREETYPE, 1, [found freetype2 via pkg-config])
])
PKG_CHECK_MODULES([FRIBIDI], [fribidi >= 0.19.0], [
CFLAGS="$CFLAGS $FRIBIDI_CFLAGS"
LIBS="$LIBS $FRIBIDI_LIBS"
AC_DEFINE(CONFIG_FRIBIDI, 1, [found fribidi via pkg-config])
])
PKG_CHECK_MODULES([HARFBUZZ], [harfbuzz >= 1.2.3], [
CFLAGS="$CFLAGS $HARFBUZZ_CFLAGS"
LIBS="$LIBS $HARFBUZZ_LIBS"
AC_DEFINE(CONFIG_HARFBUZZ, 1, [found harfbuzz via pkg-config])
])
libpng=false
AS_IF([test "x$enable_test" = xyes || test "x$enable_compare" = xyes], [
PKG_CHECK_MODULES([LIBPNG], [libpng >= 1.2.0], [
CFLAGS="$CFLAGS $LIBPNG_CFLAGS"
AC_DEFINE(CONFIG_LIBPNG, 1, [found libpng via pkg-config])
libpng=true
])
])
## Check for system font providers
### Fontconfig
AS_IF([test "x$enable_fontconfig" != xno], [
PKG_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.10.92], [
CFLAGS="$CFLAGS $FONTCONFIG_CFLAGS"
LIBS="$LIBS $FONTCONFIG_LIBS"
AC_DEFINE(CONFIG_FONTCONFIG, 1, [found fontconfig via pkg-config])
fontconfig=true
], [
fontconfig=false
])
])
### Coretext
AS_IF([test "x$enable_coretext" != xno], [
# Linking to CoreText directly only works from Mountain Lion and iOS.
# In earlier OS X releases CoreText was part of the ApplicationServices
# umbrella framework.
AC_MSG_CHECKING([for CORETEXT])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM( dnl# First test for legacy include
[[#include <ApplicationServices/ApplicationServices.h>]],
[[CTFontDescriptorCopyAttribute(NULL, kCTFontURLAttribute);]]
)
], [
LIBS="$LIBS -framework ApplicationServices -framework CoreFoundation"
AC_DEFINE(CONFIG_CORETEXT, 1, [found CoreText in ApplicationServices framework])
coretext=true
AC_MSG_RESULT([yes])
], [
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM( dnl# Otherwise check newer include style
[[#include <CoreText/CoreText.h>]],
[[CTFontDescriptorCopyAttribute(NULL, kCTFontURLAttribute);]]
)
], [
LIBS="$LIBS -framework CoreText -framework CoreFoundation"
AC_DEFINE(CONFIG_CORETEXT, 1, [found CoreText framework])
coretext=true
AC_MSG_RESULT([yes])
], [
coretext=false
AC_MSG_RESULT([no])
])
])
])
### DirectWrite
AS_IF([test "x$enable_directwrite" != xno], [
# Linking to DirectWrite directly only works from Windows
AC_MSG_CHECKING([for DIRECTWRITE])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[#include <windows.h>]], [[;]])
], [
directwrite=true
AC_MSG_RESULT([yes])
AC_MSG_CHECKING([for Win32 desktop APIs])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
#include <winapifamily.h>
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
#error Win32 desktop APIs are available
#endif
]], [[;]])
], [
# WinRT/UWP/app build: GDI and LoadLibrary are
# unavailable, but DirectWrite is always present
LIBS="$LIBS -ldwrite"
AC_DEFINE(CONFIG_DIRECTWRITE, 1, [found DirectWrite (WinRT/UWP)])
AC_MSG_RESULT([no])
], [
# Win32/desktop build: GDI is always present;
# DirectWrite is optional but can be loaded via LoadLibrary
LIBS="$LIBS -lgdi32"
AC_DEFINE(CONFIG_DIRECTWRITE, 1, [found DirectWrite and GDI (Win32)])
AC_MSG_RESULT([yes])
])
], [
directwrite=false
AC_MSG_RESULT([no])
])
])
## Require at least one system font provider by default
AS_IF([test "x$enable_require_system_font_provider" != xno dnl
&& test "x$fontconfig" != xtrue dnl
&& test "x$directwrite" != xtrue dnl
&& test "x$coretext" != xtrue ], [
AC_MSG_ERROR(m4_text_wrap(m4_normalize([
Either DirectWrite (on Windows), CoreText (on OSX), or Fontconfig
(Linux, other) is required. If you really want to compile without
a system font provider, add --disable-require-system-font-provider]),
[ ],
[No system font provider!],
[78]
))
])
## Now add packages to pkg_requires
pkg_requires="freetype2 >= 9.10.3"
pkg_requires="fribidi >= 0.19.0, ${pkg_requires}"
pkg_requires="harfbuzz >= 1.2.3, ${pkg_requires}"
AS_IF([test "x$fontconfig" = xtrue], [
pkg_requires="fontconfig >= 2.10.92, ${pkg_requires}"
])
# Locate and configure Assembler appropriately
AS_IF([test "x$enable_asm" != xno], [
AS_CASE([$host],
[i?86-*], [
INTEL=true
AS=nasm
X86=true
BITS=32
BITTYPE=32
ASFLAGS="$ASFLAGS -DARCH_X86_64=0"
],
[x86_64-*-gnux32|amd64-*-gnux32], [
AS=nasm
INTEL=true
X64=true
BITS=64
BITTYPE=x32
ASFLAGS="$ASFLAGS -DARCH_X86_64=1"
],
[x86_64-*|amd64-*], [
AS=nasm
INTEL=true
X64=true
BITS=64
BITTYPE=64
ASFLAGS="$ASFLAGS -DARCH_X86_64=1"
],
[ # default
INTEL=false
]
)
AS_IF([test "x$INTEL" = xtrue], [
AC_CHECK_PROG([nasm_check], [$AS], [yes])
AS_IF([test "x$nasm_check" != xyes], [
AC_MSG_WARN(nasm was not found; ASM functions are disabled.)
AC_MSG_WARN(Install nasm for a significantly faster libass build.)
enable_asm=no
], [
AS_CASE([$host],
[*darwin*], [
ASFLAGS="$ASFLAGS -f macho$BITTYPE -DPREFIX -DSTACK_ALIGNMENT=16"
],
[*linux*|*solaris*|*haiku*], [
ASFLAGS="$ASFLAGS -f elf$BITTYPE -DSTACK_ALIGNMENT=16"
],
[*dragonfly*|*bsd*], [
ASFLAGS="$ASFLAGS -f elf$BITTYPE"
],
[*cygwin*|*mingw*], [
ASFLAGS="$ASFLAGS -f win$BITTYPE"
AS_IF([test "x$BITS" = x32], [
ASFLAGS="$ASFLAGS -DPREFIX"
])
],
[ # default
AC_MSG_ERROR(m4_text_wrap(m4_normalize([
Please contact libass upstream to figure out if ASM
support for your platform can be added.
In the meantime you will need to use --disable-asm.]),
[ ],
[could not identify NASM format for $host !],
[78]
))
]
)
ASFLAGS="$ASFLAGS -Dprivate_prefix=ass"
AC_MSG_CHECKING([if $AS supports vpmovzxwd])
echo "vpmovzxwd ymm0, xmm0" > conftest.asm
AS_IF([$AS conftest.asm $ASFLAGS -o conftest.o >conftest.log 2>&1], [
AC_MSG_RESULT([yes])
], [
AC_MSG_RESULT([no])
VER=`($AS --version || echo no assembler) 2>/dev/null | head -n 1`
AC_MSG_WARN([nasm is too old (found $VER); ASM functions are disabled.])
AC_MSG_WARN([Install nasm-2.10 or later for a significantly faster libass build.])
enable_asm=no
])
rm conftest.asm conftest.o > /dev/null 2>&1
])
])
])
# Relay config results to output files
## Tell Makefiles which assembler and flags to use
AC_SUBST([ASFLAGS], ["$ASFLAGS"])
AC_SUBST([AS], ["$AS"])
## Relay package configuration to libass.pc.in
AC_SUBST([PKG_LIBS_PRIVATE], [${pkg_libs}])
AC_SUBST([PKG_REQUIRES_PRIVATE], [${pkg_requires}])
## Setup conditionals for use in Makefiles
AM_CONDITIONAL([ASM], [test "x$enable_asm" != xno])
AM_CONDITIONAL([INTEL], [test "x$INTEL" = xtrue])
AM_CONDITIONAL([X86], [test "x$X86" = xtrue])
AM_CONDITIONAL([X64], [test "x$X64" = xtrue])
AM_CONDITIONAL([ENABLE_LARGE_TILES], [test "x$enable_large_tiles" = xyes])
AM_CONDITIONAL([ENABLE_COMPARE], [test "x$enable_compare" = xyes && test "x$libpng" = xtrue])
AM_CONDITIONAL([ENABLE_TEST], [test "x$enable_test" = xyes && test "x$libpng" = xtrue])
AM_CONDITIONAL([ENABLE_PROFILE], [test "x$enable_profile" = xyes])
AM_CONDITIONAL([FONTCONFIG], [test "x$fontconfig" = xtrue])
AM_CONDITIONAL([CORETEXT], [test "x$coretext" = xtrue])
AM_CONDITIONAL([DIRECTWRITE], [test "x$directwrite" = xtrue])
## Define C Macros not relating to libraries
AM_COND_IF([ASM], [
AC_DEFINE(CONFIG_ASM, 1, [ASM enabled])
], [
AC_DEFINE(CONFIG_ASM, 0, [ASM enabled])
])
AM_COND_IF([ENABLE_LARGE_TILES], [
AC_DEFINE(CONFIG_LARGE_TILES, 1, [use large tiles])
], [
AC_DEFINE(CONFIG_LARGE_TILES, 0, [use small tiles])
])
## Make a guess about the source code version
AS_IF([test -d "${srcdir}/.git"], [
AC_PATH_PROG([git_bin], [git])
AS_IF([test -n "$git_bin"], [
srcversion_string="commit: $("$git_bin" -C "$srcdir" describe --tags --long --always --dirty --broken --abbrev=40)"
], [
srcversion_string="custom after: LIBASS_VERSION"
])
], [
dnl# Hope no one creates custom tarballs without adjusting the version
srcversion_string="tarball: LIBASS_VERSION"
])
AC_DEFINE_UNQUOTED([CONFIG_SOURCEVERSION], ["$srcversion_string"],
[string containing info about the used source])
## Setup output beautifier.
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AC_CONFIG_FILES([Makefile libass/Makefile test/Makefile compare/Makefile profile/Makefile libass.pc])
AC_OUTPUT