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configure.ac
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dnl Autoconf settings for vlc
AC_COPYRIGHT([Copyright 1999-2025 VLC authors and VideoLAN])
AC_INIT([vlc], [4.0.0-dev])
VERSION_MAJOR=4
VERSION_MINOR=0
VERSION_REVISION=0
VERSION_EXTRA=0
VERSION_DEV=dev
# libvlc .so version values
LIBVLC_ABI_MAJOR=12
LIBVLC_ABI_MINOR=0
LIBVLC_ABI_MICRO=0
PKGDIR="vlc"
AC_SUBST([PKGDIR])
CONFIGURE_LINE="`echo "$0 $ac_configure_args" | sed -e 's/\\\/\\\\\\\/g'`"
CODENAME="Otto Chriek"
COPYRIGHT_YEARS="1996-2025"
AC_CONFIG_SRCDIR([src/libvlc.c])
AC_CONFIG_AUX_DIR([autotools])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_LIBOBJ_DIR([compat])
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
AC_PRESERVE_HELP_ORDER
AM_INIT_AUTOMAKE([tar-ustar color-tests foreign])
AC_CONFIG_HEADERS([config.h])
AM_SILENT_RULES([yes])
AM_MAINTAINER_MODE([enable])
dnl
dnl Check for tools
dnl
AC_PROG_CC
AC_USE_SYSTEM_EXTENSIONS
VLC_PROG_CC_C17
AH_VERBATIM([FORTIFY_SOURCE],
[/* Enable compile-time and run-time bounds-checking, and some warnings,
without upsetting glibc 2.15+ or toolchains predefining _FORTIFY_SOURCE */
#if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
# define _FORTIFY_SOURCE 2
#endif])
AC_DEFINE([_FILE_OFFSET_BITS], 64, [Define to 64 for large files support.])
AC_DEFINE([LIBVLC_INTERNAL_],, [Define within the LibVLC source code tree.])
AC_PROG_CXX
AC_PROG_CPP
AC_PROG_OBJC
AC_PROG_EGREP
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AM_PROG_AS
AC_PROG_LEX([noyywrap])
AC_PROG_YACC
AC_ARG_VAR([DESKTOP_FILE_VALIDATE], [Validator for desktop entry files])
AC_CHECK_PROGS([DESKTOP_FILE_VALIDATE], [${DESKTOP_FILE_VALIDATE} desktop-file-validate], :)
AC_ARG_VAR([BUILDCC], [Build system C11 or C99 compiler command])
AC_CHECK_PROGS([BUILDCC], [c17-gcc c17 c11-gcc c11 c99-gcc c99], [false])
AS_IF([test "$BUILDCC" = "false"], [
AC_MSG_ERROR([Cannot find native C99 compiler: please define BUILDCC.])
])
dnl Check for compiler properties
AC_C_CONST
AC_C_INLINE
AC_C_RESTRICT
AC_LANG_PUSH([C++])
AX_CXX_COMPILE_STDCXX_17([noext], [mandatory])
AX_CXX_TYPEOF
AC_LANG_POP([C++])
dnl Extend the --help string at the current spot.
AC_DEFUN([EXTEND_HELP_STRING], [m4_divert_once([HELP_ENABLE], [$1])])
dnl Allow binary package maintainer to pass a custom string to avoid
dnl cache problem
AC_ARG_WITH([binary-version],
AS_HELP_STRING([--with-binary-version=STRING],
[To avoid plugins cache problem between binary version]),[],[])
AS_IF([test -n "${with_binary_version}"],[
AC_DEFINE_UNQUOTED([DISTRO_VERSION],["${with_binary_version}"],
[Binary specific version])
])
dnl Prevent clang from accepting unknown flags with a mere warning
AX_CHECK_COMPILE_FLAG([-Werror=invalid-command-line-argument], [
AX_APPEND_FLAG([-Werror=invalid-command-line-argument], [CFLAGS])
AX_APPEND_FLAG([-Werror=invalid-command-line-argument], [CXXFLAGS])
AX_APPEND_FLAG([-Werror=invalid-command-line-argument], [OBJCFLAGS])
])
AX_CHECK_COMPILE_FLAG([-Werror=unknown-warning-option], [
AX_APPEND_FLAG([-Werror=unknown-warning-option], [CFLAGS])
AX_APPEND_FLAG([-Werror=unknown-warning-option], [CXXFLAGS])
AX_APPEND_FLAG([-Werror=unknown-warning-option], [OBJCFLAGS])
])
dnl
dnl Check the operating system
dnl
HAVE_WIN64="0"
HAVE_IOS="0"
HAVE_OSX="0"
HAVE_TVOS="0"
HAVE_IOS_OR_TVOS="0"
HAVE_XROS="0"
HAVE_WATCHOS="0"
dnl Set x86 asm flags and defines
X86ASMFLAGS=""
case "${host_cpu}" in
i?86)
X86ASMFLAGS="-f elf32"
X86ASMDEFS="-DARCH_X86_64=0"
;;
x86_64)
X86ASMFLAGS="-f elf64"
X86ASMDEFS="-DARCH_X86_64=1"
;;
esac
case "${host_os}" in
"")
SYS=unknown
;;
linux*)
SYS=linux
CFLAGS="${CFLAGS} -pthread"
CXXFLAGS="${CXXFLAGS} -pthread"
;;
bsdi*)
SYS=bsdi
CFLAGS="${CFLAGS} -pthread"
CXXFLAGS="${CXXFLAGS} -pthread"
;;
freebsd*)
SYS=freebsd
CFLAGS="${CFLAGS} -pthread"
CXXFLAGS="${CXXFLAGS} -pthread"
CPPFLAGS="${CPPFLAGS} -I/usr/local/include"
LDFLAGS="${LDFLAGS} -L/usr/local/lib"
ac_cv_ld_z_defs=no
;;
openbsd*)
SYS=openbsd
CPPFLAGS="${CPPFLAGS} -I/usr/local/include -I/usr/X11R6/include"
LDFLAGS="${LDFLAGS} -L/usr/local/lib -L/usr/X11R6/lib/"
;;
netbsd*)
SYS=netbsd
;;
dragonfly*)
SYS=dragonfly
;;
darwin*)
SYS=darwin
ac_cv_func_aligned_alloc=no
dnl Work around an Xcode 11 bug, fixed in Xcode 11.3.1
AX_APPEND_FLAG([-fno-stack-check], [CFLAGS])
AX_APPEND_FLAG([-fno-stack-check], [CXXFLAGS])
AX_APPEND_FLAG([-fno-stack-check], [OBJCFLAGS])
case "${host_cpu}" in
i?86)
X86ASMFLAGS="-f macho32"
AX_APPEND_FLAG([-DPREFIX], [X86ASMDEFS])
;;
x86_64)
X86ASMFLAGS="-f macho64"
AX_APPEND_FLAG([-DPREFIX], [X86ASMDEFS])
;;
arm*)
ac_cv_c_bigendian="no"
ac_cv_c_attribute_packed="no"
;;
esac
AX_APPEND_FLAG([-D_INTL_REDIRECT_MACROS], [CPPFLAGS])
AX_APPEND_FLAG([-stdlib=libc++], [CXXFLAGS])
AX_APPEND_FLAG([-Werror=partial-availability], [OBJCFLAGS])
AX_APPEND_FLAG([-Wl,-headerpad_max_install_names], [LDFLAGS])
VLC_ADD_LIBS([libvlccore],[-Wl,-framework,CoreFoundation])
dnl This is not supported when bitcode is enabled. In that case, we need
dnl to disable the static bank loader.
AC_MSG_CHECKING([if -Wl,-U is allowed])
VLC_SAVE_FLAGS
AX_APPEND_FLAG([-Wl,-U,_my_array],[LDFLAGS])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[
__attribute__((visibility("default"))) extern int my_array[];
int foo() { return my_array[0]; }
]],[[return foo();]])],
[
VLC_ADD_LDFLAGS([libvlccore],[-Wl,-U,_vlc_static_modules])
VLC_ADD_LDFLAGS([libvlc vlc],[-Wl,-undefined,dynamic_lookup])
VLC_ADD_CPPFLAGS([libvlccore],[-DHAVE_DYLIB_DYNAMIC_LOOKUP=1])
AC_MSG_RESULT([yes])
],[AC_MSG_RESULT([no])])
VLC_RESTORE_FLAGS
AC_EGREP_CPP(yes,
[#import <TargetConditionals.h>
#if TARGET_OS_IPHONE
yes
#endif],
[HAVE_IOS="1"
HAVE_IOS_OR_TVOS="1"
ac_cv_func_wordexp=no],
[HAVE_OSX="1"])
AC_EGREP_CPP(yes,
[#import <TargetConditionals.h>
#if TARGET_OS_TV
yes
#endif],
[HAVE_TVOS="1"
HAVE_IOS_OR_TVOS="1"
HAVE_IOS="0"
HAVE_OSX="0"
HAVE_XROS="0"
ac_cv_func_fork=no
],)
AC_EGREP_CPP(yes,
[#import <TargetConditionals.h>
#if TARGET_OS_VISION
yes
#endif],
[HAVE_XROS="1"
HAVE_IOS="0"
HAVE_OSX="0"
HAVE_TVOS="0"
HAVE_IOS_OR_TVOS="0"
ac_cv_func_fork=no
],)
AC_EGREP_CPP(yes,
[#import <TargetConditionals.h>
#if TARGET_OS_WATCH
yes
#endif],
[HAVE_WATCHOS="1"
HAVE_IOS="0"
HAVE_OSX="0"
HAVE_TVOS="0"
HAVE_IOS_OR_TVOS="0"
ac_cv_func_fork=no
],)
AS_IF([test "${HAVE_OSX}" = "1"],[VLC_ADD_LIBS([libvlccore],[-Wl,-framework,CoreServices])])
dnl
dnl Handle Mac OS X SDK flags
dnl
AC_ARG_WITH(macosx-sdk,
AS_HELP_STRING([--with-macosx-sdk=DIR],
[compile using the SDK in DIR]))
if test "${with_macosx_sdk}" != "" ; then
test ! -d "${with_macosx_sdk}" && AC_MSG_ERROR([SDK "${with_macosx_sdk}" not found])
CPP="${CPP} -isysroot ${with_macosx_sdk}"
CC="${CC} -isysroot ${with_macosx_sdk}"
CXX="${CXX} -isysroot ${with_macosx_sdk}"
OBJC="${OBJC} -isysroot ${with_macosx_sdk}"
LD="${LD} -syslibroot ${with_macosx_sdk}"
fi
AC_ARG_WITH(macosx-version-min,
AS_HELP_STRING([--with-macosx-version-min=VERSION],
[compile for Mac OS X VERSION and above]))
if test "${with_macosx_version_min}" != "" ; then
CPP="${CPP} -mmacosx-version-min=${with_macosx_version_min}"
CC="${CC} -mmacosx-version-min=${with_macosx_version_min}"
CXX="${CXX} -mmacosx-version-min=${with_macosx_version_min}"
OBJC="${OBJC} -mmacosx-version-min=${with_macosx_version_min}"
LD="${LD} -mmacosx_version_min=${with_macosx_version_min}"
fi
;;
*mingw32* | *cygwin* | *wince* | *mingwce*)
dnl Force libtool to not link to (shared) libgcc_s when detecting C++ dependencies
dnl When doing this test with -static-libgcc it will link on (static) libgcc_eh
AC_LANG_PUSH(C++)
AX_APPEND_COMPILE_FLAGS([-static-libgcc], [CXXFLAGS], [-Werror])
AC_LANG_POP(C++)
AC_CHECK_TOOL(WINDRES, windres, :)
AC_CHECK_TOOL(OBJCOPY, objcopy, :)
AC_PREPROC_IFELSE([AC_LANG_PROGRAM(
[[#ifdef _WIN32_WINNT
# error _WIN32_WINNT already defined
#else
# include <sdkddkver.h>
# if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0601
# error _WIN32_WINNT toolchain default high enough
# endif
#endif
]],[[;]])
],[
AC_DEFINE([_WIN32_WINNT], [0x0601], [Define to '0x0601' for Windows 7 APIs.])
])
AC_MSG_CHECKING([if libsynchronization is needed])
AC_PREPROC_IFELSE([AC_LANG_PROGRAM(
[[#if _WIN32_WINNT >= 0x0602
# error building for Win8+ and above
#endif
]],[[;]])
],[
AC_MSG_RESULT([no])
],[
AC_MSG_RESULT([yes])
VLC_ADD_LIBS([libvlccore], [-lsynchronization])
])
AC_DEFINE([WIN32_LEAN_AND_MEAN],, [Define to limit the scope of <windows.h>.])
AC_DEFINE([UNICODE], [1], [Define to 1 for Unicode (Wide Chars) APIs.])
AC_ARG_WITH(packagedir,
AS_HELP_STRING([--with-packagedir=DIR],
[output the packaged VLC files in DIR (default vlc-$PACKAGE_VERSION)]))
AS_IF([test "${with_packagedir}" != ""], [
AS_IF([test -d "${with_packagedir}"], [
PACKAGE_DIR=`cd "${with_packagedir}" && pwd -P`
],[
dnl this should be an absolute path
PACKAGE_DIR="${with_packagedir}"
])
], [
PACKAGE_DIR=`pwd -P`"/vlc-${PACKAGE_VERSION}"
])
AC_SUBST([PACKAGE_DIR])
case "${host_os}" in
*mingw32*)
SYS=mingw32
;;
*cygwin*)
dnl Check if we are using the mno-cygwin mode in which case we are
dnl actually dealing with a mingw32 compiler.
AC_EGREP_CPP(yes,
[#ifdef _WIN32
yes
#endif],
SYS=mingw32, AC_MSG_ERROR([VLC requires -mno-cygwin]))
;;
esac
if test "${SYS}" = "mingw32"; then
# DEP, ASLR, NO SEH
LDFLAGS="${LDFLAGS} -Wl,--nxcompat -Wl,--no-seh -Wl,--dynamicbase"
AC_CHECK_PROGS(U2D, [unix2dos todos], unix2dos)
ac_default_prefix="`pwd`/_win32"
DESTDIR="`pwd`/_win32/"
dnl
dnl NSIS/MSI Installer prefix and WIN64
dnl
case "${host_cpu}" in
aarch64)
HAVE_WIN64="1"
WINDOWS_ARCH="arm64"
PROGRAMFILES="PROGRAMFILES64"
LDFLAGS="${LDFLAGS} -Wl,--high-entropy-va -Wl,--image-base,0x140000000"
;;
amd64|x86_64)
HAVE_WIN64="1"
WINDOWS_ARCH="x64"
PROGRAMFILES="PROGRAMFILES64"
LDFLAGS="${LDFLAGS} -Wl,--high-entropy-va -Wl,--image-base,0x140000000"
X86ASMFLAGS="-f win64"
;;
armv7)
WINDOWS_ARCH="arm"
PROGRAMFILES="PROGRAMFILES"
;;
i?86)
WINDOWS_ARCH="x86"
PROGRAMFILES="PROGRAMFILES"
X86ASMFLAGS="-f win32"
X86ASMDEFS="${X86ASMDEFS} -DPREFIX"
AX_APPEND_FLAG([-Wl,--large-address-aware], [LDFLAGS])
;;
*)
AC_MSG_ERROR([Unsupported Windows architecture ${host_cpu}])
;;
esac
AC_SUBST([WINDOWS_ARCH])
AC_SUBST([PROGRAMFILES])
fi
;;
*nto*)
SYS=nto
;;
solaris*)
SYS=solaris
;;
hpux*)
SYS=hpux
;;
*os2*)
SYS=os2
LDFLAGS="${LDFLAGS} -Zomf -Zbin-files -Zargs-wild -Zhigh-mem"
AC_LIBOBJ([freeaddrinfo])
AC_LIBOBJ([gai_strerror])
AC_CHECK_FUNCS([if_nametoindex])
X86ASMFLAGS="-f aout"
X86ASMDEFS="-DARCH_X86_64=0 -DPREFIX"
;;
*emscripten*)
SYS=emscripten
# tdestroy() is a GNU extension
CFLAGS="${CFLAGS} -pthread -D_GNU_SOURCE"
CXXFLAGS="${CXXFLAGS} -pthread"
ac_cv_func_if_nameindex=yes
ac_cv_header_sys_shm_h=no
;;
*)
SYS="${host_os}"
;;
esac
ANDROID_API=17
dnl Vendor-specific configuration
case "${host_os}" in
linux-android*)
VENDOR=android
AC_MSG_CHECKING([Check Android API version])
ANDROID_API="`echo ${host_os} | tr -c -d '[[:digit:]]'`"
AC_MSG_RESULT([${ANDROID_API}])
dnl GLESv2 and EGL are provided by android NDK without .pc files
GLES2_LIBS="-lGLESv2"
GLES2_CFLAGS=" "
EGL_LIBS="-lEGL"
EGL_CFLAGS=" "
AS_IF([test -n "$ANDROID_API" -a "$ANDROID_API" -lt "26"],[
ac_cv_header_sys_shm_h=no
])
dnl Those functions and headers are not functional on android, use vlc_fixups instead
ac_cv_header_search_h=no
ac_cv_func_tdestroy=no
ac_cv_func_tfind=no
;;
esac
dnl WinRT
AC_ARG_ENABLE([winstore_app],
AS_HELP_STRING([--enable-winstore-app],
[Build targeted for Windows Store apps (default disabled)]))
vlc_winstore_app=0
AS_IF([test "${SYS}" = "mingw32"],[
LIBCOM="-lole32 -loleaut32"
AC_LANG_PUSH(C++)
AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [
LIBCOMCXXFLAGS="-fno-strict-aliasing"
],[
# fno-strict-aliasing is necessary for WRL and IID_PPV_ARGS to work safely
# MSVC doesn't have this option but doesn't do pointer aliasing, so it
# should work too
AC_MSG_ERROR([-fno-strict-aliasing is necessary for Windows C++ modules])
])
AC_LANG_POP(C++)
AS_IF([test "${enable_winstore_app}" = "yes"], [
vlc_winstore_app=1
LIBCOM="-loleaut32"
LDFLAGS="${LDFLAGS} -lwindowsappcompat"
VLC_ADD_LIBS([libvlccore], [-lruntimeobject])
AC_LIBOBJ([gai_strerror])
],[])
AC_SUBST([LIBCOM])
AC_SUBST([LIBCOMCXXFLAGS])
])
vlc_build_pdb=0
AC_ARG_ENABLE([pdb],
AS_HELP_STRING([--enable-pdb],
[Build PDB files for windows targets (default off)]))
AS_IF([test "${SYS}" = "mingw32"],[
AS_IF([test "${enable_pdb}" = "yes"], [
vlc_build_pdb=1
AX_APPEND_FLAG([-g -gcodeview],[CPPFLAGS])
LDFLAGS="${LDFLAGS} -Wl,-pdb="
],[])
])
AM_CONDITIONAL([HAVE_FREEBSD], [test "${SYS}" = "freebsd"])
AM_CONDITIONAL([HAVE_LINUX], [test "${SYS}" = "linux"])
AM_CONDITIONAL([HAVE_ANDROID], [test "${VENDOR}" = "android"])
AM_CONDITIONAL([HAVE_OS2], [test "${SYS}" = "os2"])
AM_CONDITIONAL([HAVE_DARWIN], [test "${SYS}" = "darwin"])
AM_CONDITIONAL([HAVE_IOS], [test "${HAVE_IOS}" = "1"])
AM_CONDITIONAL([HAVE_OSX], [test "${HAVE_OSX}" = "1"])
AM_CONDITIONAL([HAVE_TVOS], [test "${HAVE_TVOS}" = "1"])
AM_CONDITIONAL([HAVE_IOS_OR_TVOS], [test "${HAVE_IOS_OR_TVOS}" = "1"])
AM_CONDITIONAL([HAVE_XROS], [test "${HAVE_XROS}" = "1"])
AM_CONDITIONAL([HAVE_WATCHOS], [test "${HAVE_WATCHOS}" = "1"])
AM_CONDITIONAL([HAVE_LIBANL], [test "${HAVE_LIBANL}" = "1"])
AM_CONDITIONAL([HAVE_WIN32], [test "${SYS}" = "mingw32"])
AM_CONDITIONAL([HAVE_WIN64], [test "${HAVE_WIN64}" = "1"]) dnl Only used for the packaging
AM_CONDITIONAL([HAVE_WINSTORE], [test "$vlc_winstore_app" = "1"])
AM_CONDITIONAL([HAVE_WIN32_DESKTOP], [test "${SYS}" = "mingw32" -a "$vlc_winstore_app" = "0"])
AM_CONDITIONAL([ENABLE_PDB], [test "$vlc_build_pdb" = "1"])
dnl Use nasm/yasm only on x86
AC_CHECK_PROGS(X86ASM, [nasm yasm])
AM_CONDITIONAL([HAVE_X86ASM], [test -n "${X86ASM}" && test -n "${X86ASMFLAGS}"])
AM_COND_IF([HAVE_X86ASM], [
AC_DEFINE([HAVE_X86ASM], [1], [Use external asm on x86.])
])
dnl Because DOLT is not able to handle --with-pic
dnl correctly, manually add -DPIC to the options for
dnl nasm / yasm here.
AS_IF([test "$with_pic" = "yes"], [X86ASMDEFS="${X86ASMDEFS} -DPIC"])
AC_SUBST([X86ASMFLAGS])
AC_SUBST([X86ASMDEFS])
AM_CONDITIONAL([HAVE_EMSCRIPTEN], [test "${SYS}" = "emscripten"])
dnl
dnl Sadly autoconf does not think about testing foo.exe when ask to test
dnl for program foo on win32
case "${build_os}" in
cygwin|msys|mingw32)
ac_executable_extensions=".exe"
BUILDEXEEXT=".exe"
;;
os2*)
BUILDEXEEXT=".exe"
;;
*)
;;
esac
AC_SUBST([BUILDEXEEXT])
dnl
dnl Check for the contrib directory
dnl
AC_ARG_WITH(contrib,
AS_HELP_STRING([--with-contrib[=DIR]],
[search for 3rd party libraries in DIR/include and DIR/lib])
)
AC_MSG_CHECKING([for 3rd party libraries path])
AS_IF([test -z "${with_contrib}" || test "${with_contrib}" = "yes"], [
CONTRIB_DIR="${srcdir}/contrib/${host}"
AS_IF([test ! -d "${CONTRIB_DIR}"], [
echo "${CONTRIB_DIR} not found" >&AS_MESSAGE_LOG_FD
CONTRIB_DIR="${srcdir}/contrib/`$CC -dumpmachine`"
AS_IF([test ! -d "${CONTRIB_DIR}"], [
echo "${CONTRIB_DIR} not found" >&AS_MESSAGE_LOG_FD
CONTRIB_DIR=""
AC_MSG_RESULT([not found])
])
])
], [
AS_IF([test "${with_contrib}" != "no"], [
CONTRIB_DIR="${with_contrib}"
AC_MSG_RESULT([${CONTRIB_DIR}])
], [
CONTRIB_DIR=""
AC_MSG_RESULT([disabled])
])
])
AS_IF([test -n "${CONTRIB_DIR}"], [
AS_IF([test -d "${CONTRIB_DIR}/lib"],[
SRC_CONTRIB_DIR="${CONTRIB_DIR}"
CONTRIB_DIR=`cd "${CONTRIB_DIR}" && pwd -P`
AC_MSG_RESULT([${CONTRIB_DIR} from ${SRC_CONTRIB_DIR}])
], [
echo "${CONTRIB_DIR}/lib not found" >&AS_MESSAGE_LOG_FD
CONTRIB_DIR=""
AC_MSG_RESULT([not usable])
])
])
AS_IF([test -n "${CONTRIB_DIR}"], [
CPPFLAGS="${CPPFLAGS} -I${CONTRIB_DIR}/include"
CFLAGS="${CFLAGS} -I${CONTRIB_DIR}/include"
CXXFLAGS="${CXXFLAGS} -I${CONTRIB_DIR}/include"
OBJCFLAGS="${OBJCFLAGS} -I${CONTRIB_DIR}/include -F${CONTRIB_DIR} -F${CONTRIB_DIR}/Frameworks"
PKG_CONFIG_PATH="${CONTRIB_DIR}/lib/pkgconfig:${CONTRIB_DIR}/share/pkgconfig:${PKG_CONFIG_PATH}"
case "${build_os}" in
mingw32)
export PKG_CONFIG_PATH="$(cygpath -mp "${PKG_CONFIG_PATH}")"
;;
*)
export PKG_CONFIG_PATH="${PKG_CONFIG_PATH}"
;;
esac
LDFLAGS="${LDFLAGS} -L${CONTRIB_DIR}/lib"
AS_IF([test -z "$LUAC"], [
AC_MSG_CHECKING([if contribs provide luac])
AS_IF([test -x "${CONTRIB_DIR}/../bin/${host_alias}-luac${BUILDEXEEXT}"], [
LUAC="${CONTRIB_DIR}/../bin/${host_alias}-luac${BUILDEXEEXT}"
AC_MSG_RESULT([yes])
],[
AC_MSG_RESULT([no])
])
])
AS_IF([test "${SYS}" = "darwin"], [
export LD_LIBRARY_PATH="${CONTRIB_DIR}/lib:$LD_LIBRARY_PATH"
export DYLD_LIBRARY_PATH="${CONTRIB_DIR}/lib:$DYLD_LIBRARY_PATH"
])
], [
AS_IF([test -n "${with_contrib}" && test "${with_contrib}" != "no"], [
AC_MSG_ERROR([Third party libraries not found!])
])
])
AC_SUBST([CONTRIB_DIR])
dnl Add extras/tools to the PATH
TOOLS_DIR="${srcdir}/extras/tools/build/bin"
AS_IF([test -d "${TOOLS_DIR}"], [
TOOLS_DIR="$(cd "${TOOLS_DIR}" && pwd)"
export PATH="${TOOLS_DIR}:$PATH"
])
dnl
dnl Libtool
dnl It's very bad, but our former custom system was worst
dnl -- Courmisch
dnl
dnl override platform specific check for dependent libraries
dnl otherwise libtool linking of shared libraries will
dnl fail on anything other than pass_all.
AC_CACHE_VAL(lt_cv_deplibs_check_method,
[lt_cv_deplibs_check_method=pass_all])
LT_INIT([dlopen win32-dll shared disable-static])
LT_LANG([C++])
LT_LANG([Windows Resource])
DOLT
lt_cv_deplibs_check_method=pass_all
AS_IF([test "${enable_shared}" = "no" -a "${enable_vlc}" != "no"], [
AC_MSG_ERROR([VLC is based on plugins. Shared libraries cannot be disabled.])
])
dnl
dnl Gettext stuff
dnl
AM_GNU_GETTEXT_VERSION([0.21])
AM_GNU_GETTEXT([external], [need-formatstring-macros])
dnl
dnl Iconv stuff
dnl
AM_ICONV
dnl
dnl checks for mingw
AS_IF([test "${SYS}" = "mingw32"], [
dnl Check if this is a UCRT build
AC_MSG_CHECKING([whether compiling with Universal C Runtime])
win_ucrt_build=no
AC_PREPROC_IFELSE([AC_LANG_SOURCE([
#include <crtdefs.h>
#if !(defined(_UCRT) || (__MSVCRT_VERSION__ >= 0x1400) || (__MSVCRT_VERSION__ >= 0xE00 && __MSVCRT_VERSION__ < 0x1000))
# error This is NOT a UCRT build
#endif
])], [
AC_MSG_RESULT([yes])
win_ucrt_build=yes
], [
AC_MSG_RESULT([no])
])
AC_PREPROC_IFELSE([AC_LANG_SOURCE([
#if !defined(__MINGW32__)
# error Not compiling with mingw
#endif
])], [
dnl Check for broken versions of mingw-runtime compatibility library
AC_MSG_CHECKING(for broken mingw-runtime)
AC_PREPROC_IFELSE([AC_LANG_SOURCE([
#include <_mingw.h>
#if defined(__MINGW64_VERSION_MAJOR)
# if __MINGW64_VERSION_MAJOR < 6
# error Update your mingw-w64! This one is too old.
# endif
#else
# error You cannot compile with Mingw. Use Mingw-w64!
#endif
])], [
AC_MSG_RESULT([ok])
], [
AC_MSG_RESULT([present])
AC_MSG_ERROR([LibVLC requires Mingw-w64 version 6.0 or higher!])
])
AS_IF([test "${win_ucrt_build}" = "no"], [
dnl force use of mingw provided c99 *printf over msvcrt
CPPFLAGS="${CPPFLAGS} -D__USE_MINGW_ANSI_STDIO=1"
],[
dnl for UCRT build we use the standard compatibility define of UCRT
CPPFLAGS="${CPPFLAGS} -D__USE_MINGW_ANSI_STDIO=0"
])
], [
AC_MSG_RESULT([Not compiling with mingw])
])
dnl Check for fnative-struct or mms-bitfields support for mingw32
AX_CHECK_COMPILE_FLAG([-mms-bitfields], [
AX_APPEND_FLAG([-mms-bitfields], [CFLAGS])
AX_APPEND_FLAG([-mms-bitfields], [CXXFLAGS])
# Check for the warning flag without "-Wno-", GCC accepts
# -Wno-<anything> for unsupported warnings, which can trigger
# other warnings instead.
AX_CHECK_COMPILE_FLAG([-Wincompatible-ms-struct], [
AX_APPEND_FLAG([-Wno-incompatible-ms-struct], [CFLAGS])
AX_APPEND_FLAG([-Wno-incompatible-ms-struct], [CXXFLAGS])
])
], [
AX_CHECK_COMPILE_FLAG([-fnative-struct], [
AX_APPEND_FLAG([-fnative-struct], [CFLAGS])
AX_APPEND_FLAG([-fnative-struct], [CXXFLAGS])
])
])
])
dnl
dnl Buggy glibc prevention. Purposely not cached.
dnl See sourceware.org bugs 5058 and 5443.
dnl Ubuntu alone has 20 bug numbers for this...
dnl
AC_MSG_CHECKING(for buggy GNU/libc versions)
AC_PREPROC_IFELSE([AC_LANG_SOURCE([
#include <limits.h>
#if defined (__GLIBC__) && (__GLIBC__ == 2) \
&& (__GLIBC_MINOR__ >= 5) && (__GLIBC_MINOR__ <= 7)
# error GNU/libc with dcgettext killer bug!
#endif
])], [
AC_MSG_RESULT([not present])
], [
AC_MSG_RESULT([found])
AS_IF([test "${enable_nls}" != "no"], [
AC_MSG_ERROR([Buggy GNU/libc (version 2.5 - 2.7) present. VLC would crash; there is no viable
work-around for this. Check with your distribution vendor on how to update the
glibc run-time. Alternatively, build with --disable-nls.])
])
])
dnl Plugin compilation stuff
VLC_LIBRARY_SUFFIX
dnl Check for system libs needed
need_libc=false
dnl Check for usual libc functions
AC_CHECK_FUNCS([accept4 dup3 fcntl flock fstatat fstatvfs fork getmntent_r getenv getpwuid_r isatty memalign mkostemp mmap open_memstream newlocale pipe2 posix_fadvise setlocale uselocale wordexp])
AC_REPLACE_FUNCS([aligned_alloc asprintf atof atoll dirfd fdopendir flockfile fsync getdelim getpid gmtime_r lfind lldiv localtime_r memrchr nrand48 poll posix_memalign readv recvmsg rewind sendmsg setenv strcasecmp strcasestr strdup strlcpy strndup strnlen strnstr strsep strtof strtok_r strtoll swab tdestroy tfind timegm timespec_get strverscmp vasprintf writev])
AC_REPLACE_FUNCS([gettimeofday])
AC_CHECK_FUNC(fdatasync,,
[AC_DEFINE(fdatasync, fsync, [Alias fdatasync() to fsync() if missing.])
])
VLC_REPLACE_DECL([realpath], [#include <stdlib.h>])
# Windows CE does not have strcoll()
AC_FUNC_STRCOLL
dnl Check for non-standard system calls
case "$SYS" in
"linux")
AC_CHECK_FUNCS([eventfd vmsplice sched_getaffinity recvmmsg memfd_create])
AC_REPLACE_FUNCS([getauxval])
;;
"mingw32")
AC_CHECK_FUNCS([_lock_file])
;;
esac
AH_BOTTOM([#include <vlc_fixups.h>])
dnl Check for struct timespec
AC_CHECK_TYPES([struct timespec],,,
[#include <time.h>])
dnl Check for max_align_t
AC_CHECK_TYPES([max_align_t],,,
[#include <stddef.h>])
dnl Checks for socket stuff
VLC_SAVE_FLAGS
SOCKET_LIBS=""
AS_IF([test "${SYS}" = "mingw32"], [
SOCKET_LIBS="-lws2_32 -liphlpapi"
],[
AC_SEARCH_LIBS(connect, [socket], [
AS_IF([test "$ac_cv_search_connect" != "none required"], [
SOCKET_LIBS="$ac_cv_search_connect"
])
])
])
AC_SEARCH_LIBS([inet_pton], [nsl], [
AS_IF([test "$ac_cv_search_inet_pton" != "none required"], [
SOCKET_LIBS="$ac_cv_search_inet_pton $SOCKET_LIBS"
])
],, [${SOCKET_LIBS}])
LIBS="${LIBS} ${SOCKET_LIBS}"
AC_LINK_IFELSE([
AC_LANG_PROGRAM([#ifdef _WIN32
#include <ws2tcpip.h>
#include <windows.h>
#else
#include <sys/socket.h>
#include <arpa/inet.h>
#endif], [
char dst[[sizeof(struct in_addr)]];
inet_pton(AF_INET, "127.0.0.1", dst);
])],[AC_DEFINE([HAVE_INET_PTON],[1],[Define to 1 if you have inet_pton function])],[AC_LIBOBJ([inet_pton])])
AC_CHECK_TYPES([struct if_nameindex],,,[#include <net/if.h>])
AC_CHECK_FUNCS([if_nameindex])
VLC_RESTORE_FLAGS
AC_SUBST([SOCKET_LIBS])
dnl Check for socklen_t
AH_TEMPLATE(socklen_t, [Define to `int' if <sys/socket.h> does not define.])
AC_CACHE_CHECK([for socklen_t in sys/socket.h],
ac_cv_type_socklen_t,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
[#include <sys/types.h>
#ifdef _WIN32
# include <winsock2.h>
# include <ws2tcpip.h>
#else
# include <sys/socket.h>
#endif]], [[socklen_t len; len = 0;]])],
ac_cv_type_socklen_t=yes,
ac_cv_type_socklen_t=no)])
AS_IF([test "$ac_cv_type_socklen_t" = no], [
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
#include <sys/types.h>
#ifdef _WIN32
# include <winsock2.h>
# include <ws2tcpip.h>
#else
# include <sys/socket.h>
#endif
]], [[
_Generic(getpeername, int (*)(int, struct sockaddr *, int *): 0);
]])
], AC_DEFINE(socklen_t, int), AC_DEFINE(socklen_t, unsigned int))
])
dnl Check for struct sockaddr_storage
AH_TEMPLATE(sockaddr_storage, [Define to `sockaddr' if <sys/socket.h> does not define.]) dnl ` (fix VIM syntax highlight
AH_TEMPLATE(ss_family, [Define to `sa_family' if <sys/socket.h> does not define.]) dnl ` (fix VIM syntax highlight
AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_struct_sockaddr_storage,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#if defined( _WIN32 )
# include <winsock2.h>
#else
# include <sys/socket.h>
#endif]], [[struct sockaddr_storage addr;]])],
[ac_cv_struct_sockaddr_storage=yes],
[ac_cv_struct_sockaddr_storage=no])])
AS_IF([test "${ac_cv_struct_sockaddr_storage}" = no], [
AC_DEFINE(sockaddr_storage, sockaddr)
AC_DEFINE(ss_family, sa_family)
])
dnl FreeBSD has a gnugetopt library for this:
GNUGETOPT_LIBS=""
AC_CHECK_FUNC(getopt_long,, [
AC_CHECK_LIB([gnugetopt],[getopt_long], [
GNUGETOPT_LIBS="-lgnugetopt"
])
])
AC_SUBST([GNUGETOPT_LIBS])
AC_CHECK_LIB([m], [cos], [
LIBM="-lm"
], [
LIBM=""
])
AC_SUBST([LIBM])
AC_CHECK_LIB([m], [lrintf], [
AC_DEFINE(HAVE_LRINTF, 1, [Define to 1 if you have the lrintf function])
VLC_ADD_LIBS([skins2],[-lm])
])
AC_CHECK_LIB([m], [nanf],
AC_DEFINE(HAVE_NANF, 1, [Define to 1 if you have the NANF function])
)
AC_CHECK_LIB([m], [sincos], [
AC_DEFINE(HAVE_SINCOS, 1, [Define to 1 if you have the sincos function.])
], [
AC_LIBOBJ([sincos])
])
AC_MSG_CHECKING([broken qsort_r prototype])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <stdlib.h>
_Static_assert(_Generic((qsort_r),
void (*)(void *, size_t, size_t, void *,
int (*)(void *, const void *, const void *)) : 1, default: 0),
"Bad prototype not matched");
])], [
AC_MSG_RESULT([broken])
AC_DEFINE([HAVE_BROKEN_QSORT_R], 1, [Defined to 1 if the qsort_r() prototype contradicts the upcoming POSIX standard.])
], [
AC_MSG_RESULT([no])
])
AC_MSG_CHECKING([_Thread_local support])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([_Thread_local int foo = 0;
int main() {}])], [
AC_MSG_RESULT([ok])
AC_DEFINE(HAVE_THREAD_LOCAL, 1, [Defined to 1 if C11 _Thread_local storage qualifier is supported])
],[ AC_MSG_RESULT([no])])
dnl __STDC_NO_THREADS__ can't be trusted on some platforms.
dnl check for its availability explicitly
AC_CHECK_HEADERS([threads.h])
AC_CHECK_LIB([anl],[getaddrinfo_a],[])
dnl Check for dynamic plugins
LIBDL=""
have_dynamic_objects="no"
VLC_SAVE_FLAGS
AC_SEARCH_LIBS(dlsym, [dl svld], [
AS_IF([test "$ac_cv_search_dlsym" != "none required"], [
LIBDL="$ac_cv_search_dlsym"
])
have_dynamic_objects="yes"
])
VLC_RESTORE_FLAGS
# Windows
AS_IF([test "${SYS}" = "mingw32"], [
LIBDL=""
have_dynamic_objects="yes" #assume we can use shared objects
])
AC_ARG_WITH([libfuzzer],
AS_HELP_STRING([--with-libfuzzer=DIR],
[use libFuzzer library from DIR and triggers sanitize coverage (default disabled)]),
[],
[with_libfuzzer=no])
AS_VAR_IF(with_libfuzzer, no, [], [
enable_shared=no
enable_static=yes
enable_vlc=no
])
AM_CONDITIONAL([HAVE_LIBFUZZER], [test "${with_libfuzzer}" != "no"])
AS_IF([test "${enable_shared}" = "no"], [
have_dynamic_objects=no
])
AM_CONDITIONAL([HAVE_DYNAMIC_PLUGINS], [test "${have_dynamic_objects}" != "no"])
AC_SUBST([LIBDL])
AS_IF([test "${SYS}" != "mingw32"], [
AC_SEARCH_LIBS([clock_nanosleep], [rt pthread], [
AS_IF([test "$ac_cv_search_clock_nanosleep" != "none required"], [
LIBRT="$ac_cv_search_clock_nanosleep"
])
], [
AC_SEARCH_LIBS([nanosleep], [rt pthread posix4], [
AS_IF([test "$ac_cv_search_nanosleep" != "none required"], [
LIBRT="$ac_cv_search_nanosleep"
])
])
])
])
AC_SUBST([LIBRT])
dnl Check for clock_* functions, needs to be done here,
dnl after the -lrt check