configure.ac 125 KB
Newer Older
1
dnl Autoconf settings for vlc
2

Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
3
AC_COPYRIGHT([Copyright 1999-2016 VLC authors and VideoLAN])
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
4

Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
5 6 7
AC_INIT(vlc, 3.0.0-git)
VERSION_MAJOR=3
VERSION_MINOR=0
8 9
VERSION_REVISION=0
VERSION_EXTRA=0
Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
10
VERSION_DEV=git
11

12 13
PKGDIR="vlc"
AC_SUBST(PKGDIR)
14

15
CONFIGURE_LINE="`echo "$0 $ac_configure_args" | sed -e 's/\\\/\\\\\\\/g'`"
Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
16
CODENAME="Vetinari"
Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
17
COPYRIGHT_YEARS="1996-2016"
18

19
AC_CONFIG_SRCDIR(src/libvlc.c)
20
AC_CONFIG_AUX_DIR(autotools)
21
AC_CONFIG_MACRO_DIR(m4)
22
AC_CONFIG_LIBOBJ_DIR(compat)
23
AC_CANONICAL_BUILD
24
AC_CANONICAL_HOST
25
AC_PRESERVE_HELP_ORDER
26

27
AM_INIT_AUTOMAKE(tar-ustar color-tests foreign)
28
AC_CONFIG_HEADERS([config.h])
29

Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
30
AM_SILENT_RULES([yes])
31
AM_MAINTAINER_MODE([enable])
32

33 34 35 36 37 38 39 40 41 42
dnl
dnl Directories
dnl
dnl vlcincludedir="\${includedir}/\${PKGDIR}"
dnl AC_SUBST(vlcincludedir)
vlcdatadir="\${datadir}/\${PKGDIR}"
AC_SUBST(vlcdatadir)
vlclibdir="\${libdir}/\${PKGDIR}"
AC_SUBST(vlclibdir)

Sam Hocevar's avatar
Sam Hocevar committed
43
dnl
44
dnl Check for tools
Sam Hocevar's avatar
Sam Hocevar committed
45
dnl
46
AC_PROG_CC_C99
47
AC_USE_SYSTEM_EXTENSIONS
48
VLC_PROG_CC_C11
49 50
AC_DEFINE([_FORTIFY_SOURCE], 2, [Define to 2 to get glibc warnings.])
AC_DEFINE([_FILE_OFFSET_BITS], 64, [Define to 64 for large files support.])
51 52 53 54 55
AH_TOP([
#ifndef _REENTRANT
# define _REENTRANT
#endif
])
56 57
AC_DEFINE([_THREAD_SAFE],, [Same as _REENTANT for some other OSes.])
AC_DEFINE([__LIBVLC__],, [Define within the LibVLC source code tree.])
58
AC_DEFINE([WIN32_LEAN_AND_MEAN],, [Define to limit the scope of <windows.h>.])
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
59

60 61
AM_PROG_CC_C_O
AC_PROG_CXX
62
AC_PROG_CPP
63 64 65
AC_PROG_OBJC
_AM_DEPENDENCIES([OBJC])
AC_PROG_EGREP
66 67
AC_PROG_MAKE_SET
AC_PROG_INSTALL
68
AM_PROG_AS
69

70 71
AC_ARG_VAR([DESKTOP_FILE_VALIDATE], [Validator for desktop entry files])
AC_CHECK_PROGS(DESKTOP_FILE_VALIDATE, [${DESKTOP_FILE_VALIDATE} desktop-file-validate], :)
72
AC_ARG_VAR([BUILDCC], [Build system C11 or C99 compiler command])
73
AC_CHECK_PROGS(BUILDCC, [c11-gcc c11 c99-gcc c99], [false])
74
AS_IF([test "$BUILDCC" = "false"], [
75 76
  AC_MSG_ERROR([Cannot find native C99 compiler: please define BUILDCC.])
])
77

78 79 80
dnl Check for compiler properties
AC_C_CONST
AC_C_INLINE
81
AC_C_RESTRICT
82
AX_CXX_COMPILE_STDCXX_11(noext, mandatory)
83

84 85 86
dnl Extend the --help string at the current spot.
AC_DEFUN([EXTEND_HELP_STRING], [m4_divert_once([HELP_ENABLE], [$1])])

87
dnl Allow binary package maintainer to pass a custom string to avoid
88
dnl cache problem
89
AC_ARG_WITH(binary-version,
90 91
    AS_HELP_STRING([--with-binary-version=STRING],
         [To avoid plugins cache problem between binary version]),[],[])
92
AS_IF([test -n "${with_binary_version}"],[
93 94 95
    AC_DEFINE_UNQUOTED([DISTRO_VERSION],["${with_binary_version}"],
         [Binary specific version])
])
96

97 98 99
dnl
dnl  Check the operating system
dnl
100
HAVE_WIN64="0"
101 102
HAVE_IOS="0"
HAVE_OSX="0"
103
HAVE_TVOS="0"
Luca Barbato's avatar
Luca Barbato committed
104

105
case "${host_os}" in
Sam Hocevar's avatar
Sam Hocevar committed
106
  "")
107 108
    SYS=unknown
    ;;
Sam Hocevar's avatar
Sam Hocevar committed
109
  linux*)
110 111
    SYS=linux
    ;;
Sam Hocevar's avatar
Sam Hocevar committed
112
  bsdi*)
113
    SYS=bsdi
114
    CFLAGS="${CFLAGS} -pthread"
115
    ;;
116 117
  freebsd*)
    SYS=freebsd
118
    CFLAGS="${CFLAGS} -pthread"
119 120
    CPPFLAGS="${CPPFLAGS} -I/usr/local/include"
    LDFLAGS="${LDFLAGS} -L/usr/local/lib"
121
    ac_cv_ld_z_defs=no
122 123 124 125 126 127 128 129 130 131 132
    ;;
  openbsd*)
    SYS=openbsd
    CPPFLAGS="${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
133
    ;;
134
  darwin*)
135 136 137 138

    dnl Force gcc "-arch" flag
    ARCH_flag=""
    case "${host}" in
139
      i?86*)
140 141 142 143 144 145 146 147 148 149 150
        ARCH_flag="-arch i386"
      ;;
      ppc64*)
        ARCH_flag="-arch ppc64"
      ;;
      ppc*)
        ARCH_flag="-arch ppc"
      ;;
      x86_64*)
        ARCH_flag="-arch x86_64"
      ;;
151 152
      arm*)
        ac_cv_c_bigendian="no"
153
        ac_cv_c_attribute_packed="no"
154
      ;;
155 156
    esac

157
    SYS=darwin
158
    CFLAGS="${CFLAGS} -D_INTL_REDIRECT_MACROS -std=gnu11 ${ARCH_flag}"
159 160
    CXX="${CXX} -stdlib=libc++ -std=c++11"
    CXXFLAGS="${CXXFLAGS} -D_INTL_REDIRECT_MACROS ${ARCH_flag}"
161
    CPPFLAGS="${CPPFLAGS} ${ARCH_flag}"
162
    OBJCFLAGS="${OBJCFLAGS} -D_INTL_REDIRECT_MACROS -std=gnu11 ${ARCH_flag}"
163
    LDFLAGS="${LDFLAGS} -Wl,-headerpad_max_install_names ${ARCH_flag}"
164
    VLC_ADD_LIBS([libvlc vlc],[-Wl,-undefined,dynamic_lookup,-framework,AppKit])
165
    VLC_ADD_LIBS([libvlccore],[-Wl,-framework,CoreFoundation,-framework,CoreServices])
166

167 168 169 170 171 172 173 174
    AC_EGREP_CPP(yes,
            [#import <TargetConditionals.h>
             #if TARGET_OS_IPHONE
             yes
             #endif],
             [HAVE_IOS="1"],
             [HAVE_OSX="1"])

175 176 177 178 179 180 181 182 183 184
    AC_EGREP_CPP(yes,
            [#import <TargetConditionals.h>
             #if TARGET_OS_TV
             yes
             #endif],
             [HAVE_TVOS="1"
             HAVE_IOS="0"
             HAVE_OSX="0"
             ],)

185
    dnl Allow binaries created on Lion to run on earlier releases
186 187 188 189 190 191
    AC_EGREP_CPP(yes,
           [#import <Cocoa/Cocoa.h>
            #ifdef MAC_OS_X_VERSION_10_7
            yes
            #endif],
            [AC_MSG_RESULT([yes])
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
192 193 194
            AC_LIBOBJ([getdelim])
            AC_LIBOBJ([strndup])
            AC_LIBOBJ([strnlen])],)
195

196
    dnl
197
    dnl  Handle Mac OS X SDK flags
198 199
    dnl
    AC_ARG_WITH(macosx-sdk,
200 201
      [AS_HELP_STRING([--with-macosx-sdk=DIR],
        [compile using the SDK in DIR])])
202 203 204 205 206 207 208 209
    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 ${with_macosx_sdk}"
    fi
210
    AC_ARG_WITH(macosx-version-min,
211
      [AS_HELP_STRING([--with-macosx-version-min=VERSION],
212 213 214 215 216 217 218
        [compile for Mac OS X VERSION and above])])
    if test "${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}"
219
    fi
220
    ;;
221
  *mingw32* | *cygwin* | *wince* | *mingwce*)
222 223 224
    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
    CXXFLAGS="${CXXFLAGS} -static-libgcc"
225
    AC_CHECK_TOOL(WINDRES, windres, :)
226
    AC_CHECK_TOOL(OBJCOPY, objcopy, :)
227
    AH_TOP([#if defined(_WIN32) && !defined(_WIN32_WINNT)])
228 229
    AH_TOP([# define _WIN32_WINNT 0x0502 /* Windows XP SP2 */])
    AH_TOP([#endif])
230
    AC_DEFINE([_WIN32_IE], 0x0600, [Define to '0x0600' for IE 6.0 (and shell) APIs.])
231 232
    AC_DEFINE([_UNICODE], [1], [Define to 1 for Unicode (Wide Chars) APIs.])
    AC_DEFINE([UNICODE], [1], [Define to 1 for Unicode (Wide Chars) APIs.])
233 234 235 236 237 238 239 240
    AC_DEFINE([_ISOC99_SOURCE], [1], [Extensions to ISO C89 from ISO C99.])
    AC_DEFINE([_ISOC11_SOURCE], [1], [Extensions to ISO C99 from ISO C11.])
    AC_DEFINE([_POSIX_SOURCE], [1], [IEEE Std 1003.1.])
    AC_DEFINE([_POSIX_C_SOURCE], [200809L], [IEEE Std 1003.1.])
    AC_DEFINE([_XOPEN_SOURCE], [700], [POSIX and XPG 7th edition])
    AC_DEFINE([_XOPEN_SOURCE_EXTENDED], [1], [XPG things and X/Open Unix extensions.])
    AC_DEFINE([_BSD_SOURCE], [1], [ISO C, POSIX, and 4.3BSD things.])
    AC_DEFINE([_SVID_SOURCE], [1], [ISO C, POSIX, and SVID things.])
241

242
    case "${host_os}" in
Sam Hocevar's avatar
Sam Hocevar committed
243
      *mingw32*)
244 245
        SYS=mingw32
        ;;
Sam Hocevar's avatar
Sam Hocevar committed
246
      *cygwin*)
247 248 249
        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,
250
            [#ifdef _WIN32
251 252
             yes
             #endif],
253
            SYS=mingw32, AC_MSG_ERROR([VLC requires -mno-cygwin]))
254 255 256
        ;;
    esac

Sam Hocevar's avatar
Sam Hocevar committed
257
    if test "${SYS}" = "mingw32"; then
258 259 260
        # DEP, ASLR, NO SEH
        LDFLAGS="${LDFLAGS} -Wl,--nxcompat -Wl,--no-seh -Wl,--dynamicbase"

261
        AC_CHECK_PROGS(U2D, [unix2dos todos], unix2dos)
262 263
        ac_default_prefix="`pwd`/_win32"
        DESTDIR="`pwd`/_win32/"
264 265

        dnl
Ludovic Fauvet's avatar
Ludovic Fauvet committed
266
        dnl NSIS/MSI Installer prefix and WIN64
267 268
        dnl
        case "${host}" in
269
            amd64*|x86_64*)
270
                HAVE_WIN64="1"
Ludovic Fauvet's avatar
Ludovic Fauvet committed
271
                WINDOWS_ARCH="x64"
272
                PROGRAMFILES="PROGRAMFILES64"
273
                LDFLAGS="${LDFLAGS} -Wl,--high-entropy-va -Wl,--image-base,0x140000000"
274 275
            ;;
            *)
Ludovic Fauvet's avatar
Ludovic Fauvet committed
276
                WINDOWS_ARCH="x86"
277 278 279
                PROGRAMFILES="PROGRAMFILES"
            ;;
        esac
Ludovic Fauvet's avatar
Ludovic Fauvet committed
280
        AC_SUBST(WINDOWS_ARCH)
281 282
        AC_SUBST(PROGRAMFILES)

283
    fi
284
    ;;
Sam Hocevar's avatar
Sam Hocevar committed
285
  *nto*)
286 287
    SYS=nto
    ;;
Sam Hocevar's avatar
Sam Hocevar committed
288
  solaris*)
289 290
    SYS=solaris
    ;;
Sam Hocevar's avatar
Sam Hocevar committed
291
  hpux*)
292 293
    SYS=hpux
    ;;
KO Myung-Hun's avatar
KO Myung-Hun committed
294 295
  *os2*)
    SYS=os2
296
    LDFLAGS="${LDFLAGS} -Zomf -Zbin-files -Zargs-wild -Zhigh-mem"
297
    AC_LIBOBJ([freeaddrinfo])
298
    AC_LIBOBJ([gai_strerror])
KO Myung-Hun's avatar
KO Myung-Hun committed
299
    ;;
Sam Hocevar's avatar
Sam Hocevar committed
300
  *)
301
    SYS="${host_os}"
302
    ;;
303
esac
304 305 306 307 308 309 310 311

dnl WinRT
AC_ARG_ENABLE(winstore_app,
     AS_HELP_STRING([--enable-winstore-app],
                    [Build targetted for Windows Store apps (default disabled)]))

vlc_winstore_app=0
AS_IF([test "${SYS}" = "mingw32"],[
312
  LIBCOM="-lole32"
313 314
  AS_IF([test "${enable_winstore_app}" = "yes"], [
    vlc_winstore_app=1
315
    LIBCOM=""
316
     VLC_ADD_LIBS([libvlccore], [-lruntimeobject])
317 318 319 320
     AC_LIBOBJ([gai_strerror])
    ],[
     VLC_ADD_LIBS([libvlccore],[-lwinmm])
    ])
321
  AC_SUBST(LIBCOM)
322 323 324
  ])
AC_DEFINE_UNQUOTED(VLC_WINSTORE_APP, ${vlc_winstore_app}, [Define to 1 if you want to build for Windows Store apps])

Rémi Duraffort's avatar
Rémi Duraffort committed
325 326
AM_CONDITIONAL(HAVE_LINUX,   test "${SYS}" = "linux")
AM_CONDITIONAL(HAVE_OS2,     test "${SYS}" = "os2")
327 328

AM_CONDITIONAL(HAVE_DARWIN,  test "${SYS}" = "darwin")
329 330 331
AM_CONDITIONAL(HAVE_IOS,     test "${HAVE_IOS}" = "1")
AM_CONDITIONAL(HAVE_OSX,     test "${HAVE_OSX}" = "1")
AM_CONDITIONAL(HAVE_TVOS,    test "${HAVE_TVOS}" = "1")
332

333 334 335
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 "$vlc_winstore_app" = "1"])
336
AM_CONDITIONAL([HAVE_WIN32_DESKTOP], [test "${SYS}" = "mingw32" -a "$vlc_winstore_app" = "0"])
337

338 339 340 341
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
342
    cygwin|msys|mingw32)
343 344
        ac_executable_extensions=".exe"
    ;;
345 346 347
    os2*)
        BUILDEXEEXT=".exe"
    ;;
348 349 350
    *)
    ;;
esac
351
AC_SUBST(BUILDEXEEXT)
352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369

dnl Android is linux, but a bit different
AS_IF([test "$SYS" = linux],[
    AC_MSG_CHECKING([for an Android system])
    AC_PREPROC_IFELSE([AC_LANG_PROGRAM(
        [[#ifndef __ANDROID__
         # error Not Android
         #endif
        ]],[[;]])
    ],[
      HAVE_ANDROID="1"
      AC_MSG_RESULT([yes])
    ],[
      AC_MSG_RESULT([no])
    ])
])
AM_CONDITIONAL(HAVE_ANDROID, test "${HAVE_ANDROID}" = "1")

370 371 372
dnl Tizen (minimum SDK version: 2.3)
AS_IF([test "$SYS" = linux],[
    AC_MSG_CHECKING([for Tizen])
373 374 375 376
    AC_PREPROC_IFELSE([AC_LANG_PROGRAM(
        [[#include <tizen.h>
        ]],[[;]])
    ],[
377
      HAVE_TIZEN="1"
378
      AC_DEFINE([HAVE_TIZEN_SDK], [1], [Define to 1 if vlc is built against Tizen SDK])
379 380 381 382 383 384
      AC_MSG_RESULT([yes])
    ],[
      AC_MSG_RESULT([no])
    ])
])
AM_CONDITIONAL(HAVE_TIZEN, test "${HAVE_TIZEN}" = "1")
385

386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406
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="${srcdir}/extras/contrib/hosts/${host}"
      AS_IF([test ! -d "${CONTRIB_DIR}"], [
        echo "${CONTRIB_DIR} not found" >&AS_MESSAGE_LOG_FD
        CONTRIB_DIR="${srcdir}/extras/contrib/hosts/`$CC -dumpmachine`"
        AS_IF([test ! -d "${CONTRIB_DIR}"], [
          echo "${CONTRIB_DIR} not found" >&AS_MESSAGE_LOG_FD
407 408
          CONTRIB_DIR=""
          AC_MSG_RESULT([not found])
409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436
        ])
      ])
    ])
  ])
], [
  AS_IF([test "${with_contrib}" != "no"], [
    CONTRIB_DIR="${with_contrib}"
  ], [
    CONTRIB_DIR=""
    AC_MSG_RESULT([disabled])
  ])
])
AS_IF([test -n "${CONTRIB_DIR}"], [
  AS_IF([test -d "${CONTRIB_DIR}/lib"],[
    CONTRIB_DIR=`cd "${CONTRIB_DIR}" && pwd`
  ], [
    echo "${CONTRIB_DIR}/lib not found" >&AS_MESSAGE_LOG_FD
    CONTRIB_DIR=""
    AC_MSG_RESULT([not usable])
  ])

])
AS_IF([test -n "${CONTRIB_DIR}"], [
  AC_MSG_RESULT([${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"
437
  export PKG_CONFIG_PATH="${CONTRIB_DIR}/lib/pkgconfig:$PKG_CONFIG_PATH"
438 439
  LDFLAGS="${LDFLAGS} -L${CONTRIB_DIR}/lib"

440 441 442 443 444 445 446
  AS_IF([test -z "$LUAC"], [
    dnl Old contribs mixed cross-tools and cross-compiled executables
    AS_IF([test -x "${CONTRIB_DIR}/bin/luac"], [
      LUAC="${CONTRIB_DIR}/bin/luac"
    ])

    dnl Newer contribs follow usual name space rules
447 448
    AS_IF([test -x "${CONTRIB_DIR}/../bin/${host_alias}-luac"], [
      LUAC="${CONTRIB_DIR}/../bin/${host_alias}-luac"
449 450
    ])
  ])
451

452 453 454 455 456 457 458 459 460 461 462
  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)

463
dnl Add extras/tools to the PATH
464
TOOLS_DIR="${srcdir}/extras/tools/build/bin"
465 466
AS_IF([test -d "${TOOLS_DIR}"], [
    TOOLS_DIR=`cd "${TOOLS_DIR}" && pwd`
467
    export PATH="${TOOLS_DIR}":$PATH
468 469
])

470
dnl
471 472 473 474
dnl  Libtool
dnl  It's very bad, but our former custom system was worst
dnl  -- Courmisch
dnl
475 476 477 478

dnl override platform specific check for dependent libraries
dnl otherwise libtool linking of shared libraries will
dnl fail on anything other than pass_all.
479 480
AC_CACHE_VAL(lt_cv_deplibs_check_method,
    [lt_cv_deplibs_check_method=pass_all])
481

482 483 484
LT_INIT([dlopen win32-dll shared disable-static])
LT_LANG([C++])
LT_LANG([Windows Resource])
485

Luca Barbato's avatar
Luca Barbato committed
486 487
DOLT

488 489
lt_cv_deplibs_check_method=pass_all

490
AS_IF([test "${enable_shared}" = "no" -a "${enable_vlc}" != "no"], [
491 492 493
  AC_MSG_ERROR([VLC is based on plugins. Shared libraries cannot be disabled.])
])

494 495 496
dnl
dnl Gettext stuff
dnl
497
AM_GNU_GETTEXT_VERSION([0.19.8])
498
AM_GNU_GETTEXT([external], [need-formatstring-macros])
499

500 501 502
dnl
dnl Iconv stuff
dnl
503
AM_ICONV
504

505 506
dnl
dnl checks for mingw
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
507
AS_IF([test "${SYS}" = "mingw32"], [
508

509 510 511 512 513 514
AC_PREPROC_IFELSE([AC_LANG_SOURCE([
#if !defined(__MINGW32__)
# error Not compiling with mingw
#endif
    ])], [

515
dnl Check for broken versions of mingw-runtime compatability library
516
    AC_MSG_CHECKING(for broken mingw-runtime)
517
    AC_PREPROC_IFELSE([AC_LANG_SOURCE([
518
#include <_mingw.h>
519 520 521 522 523
#if defined(__MINGW64_VERSION_MAJOR)
# if __MINGW64_VERSION_MAJOR < 3
#  error Attempting to use mingw-runtime with broken vsnprintf and direct2d support
# endif
#elif __MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION < 15
524 525
# error Attempting to use mingw-runtime with broken vsnprintf support
#endif
526
    ])], [
527
        AC_MSG_RESULT([ok])
528
    ], [
529
        AC_MSG_RESULT([present])
530
        AC_MSG_ERROR([LibVLC requires mingw-runtime version 3.15 or higher, or mingw-w64 version 3.0 or higher!])
531
    ])
532

533 534 535
    dnl force use of mingw provided c99 *printf over msvcrt
    CPPFLAGS="${CPPFLAGS} -D__USE_MINGW_ANSI_STDIO=1"

536 537 538 539
    dnl Add WinMainCRTStartup entry point to show it's a WinMain application
    VLC_ADD_LDFLAGS([vlc],[-mwindows])

    dnl Check for the need to include the mingwex lib for mingw32
540
    VLC_SAVE_FLAGS
541
    AC_CHECK_LIB(mingwex,opendir,
542
        AC_CHECK_LIB(mingw32,opendir,,
543
            [VLC_ADD_LIBS([libvlccore],[-lmingwex])])
544
    )
545
    VLC_RESTORE_FLAGS
546 547 548
    ], [
        AC_MSG_RESULT([Not compiling with mingw])
    ])
549

550
    dnl Check for fnative-struct or mms-bitfields support for mingw32
551 552 553
    VLC_SAVE_FLAGS
    CFLAGS="${CFLAGS} -mms-bitfields"
    CXXFLAGS="${CXXFLAGS} -mms-bitfields"
554 555
    AC_CACHE_CHECK([if \$CC accepts -mms-bitfields],
        [ac_cv_c_mms_bitfields],
556 557 558 559 560
        [AC_TRY_COMPILE([],,ac_cv_c_mms_bitfields=yes, ac_cv_c_mms_bitfields=no)])
    if test "${ac_cv_c_mms_bitfields}" = "no"; then
        VLC_RESTORE_FLAGS
        CFLAGS="${CFLAGS} -fnative-struct"
        CXXFLAGS="${CXXFLAGS} -fnative-struct"
561 562
        AC_CACHE_CHECK([if \$CC accepts -fnative-struct],
            [ac_cv_c_fnative_struct],
563 564
            [AC_TRY_COMPILE([],,ac_cv_c_fnative_struct=yes, ac_cv_c_fnative_struct=no)])
        "${ac_cv_c_fnative_struct}" = "no" && VLC_RESTORE_FLAGS
565
    fi
566
])
567

568

569 570
dnl
dnl Buggy glibc prevention. Purposedly not cached.
571
dnl See sourceware.org bugs 5058 and 5443.
572 573 574
dnl Ubuntu alone has 20 bug numbers for this...
dnl
AC_MSG_CHECKING(for buggy GNU/libc versions)
575
AC_PREPROC_IFELSE([AC_LANG_SOURCE([
576 577 578 579 580
#include <limits.h>
#if defined (__GLIBC__) && (__GLIBC__ == 2) \
  && (__GLIBC_MINOR__ >= 5) && (__GLIBC_MINOR__ <= 7)
# error GNU/libc with dcgettext killer bug!
#endif
581
])], [
582 583 584
  AC_MSG_RESULT([not present])
], [
  AC_MSG_RESULT([found])
585
  AS_IF([test "x${enable_nls}" != "xno"], [
586 587
    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
588
glibc run-time. Alternatively, build with --disable-nls.])
589
  ])
590 591
])

Sam Hocevar's avatar
Sam Hocevar committed
592 593 594 595
dnl Plugin compilation stuff

VLC_LIBRARY_SUFFIX

596
dnl Check for system libs needed
597
need_libc=false
598

599
dnl Check for usual libc functions
600
AC_CHECK_FUNCS([daemon fcntl flock fstatvfs fork getenv getpwuid_r isatty lstat memalign mkostemp mmap open_memstream openat pread posix_fadvise posix_madvise setlocale stricmp strnicmp strptime tdestroy uselocale pthread_cond_timedwait_monotonic_np pthread_condattr_setclock])
601
AC_REPLACE_FUNCS([atof atoll dirfd fdopendir ffsll flockfile fsync getdelim getpid lldiv memrchr nrand48 poll posix_memalign recvmsg rewind sendmsg setenv strcasecmp strcasestr strdup strlcpy strndup strnlen strnstr strsep strtof strtok_r strtoll swab tfind timegm timespec_get strverscmp])
602
AC_REPLACE_FUNCS([gettimeofday])
603
AC_CHECK_FUNC(fdatasync,,
604 605
  [AC_DEFINE(fdatasync, fsync, [Alias fdatasync() to fsync() if missing.])
])
606

607 608
VLC_REPLACE_DECL([realpath], [#include <stdlib.h>])

609
dnl mingw64 implements those as static inline, not functions with C linkage
610 611
VLC_REPLACE_DECL([asprintf], [#include <stdio.h>])
VLC_REPLACE_DECL([vasprintf], [#include <stdio.h>])
612 613
VLC_REPLACE_DECL([gmtime_r], [#include <time.h>])
VLC_REPLACE_DECL([localtime_r], [#include <time.h>])
614

615 616
dnl C11 static_assert()
AC_MSG_CHECKING([for static_assert in assert.h])
617 618
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <assert.h>], [
static_assert(1, "The impossible happened.");
619 620 621 622 623 624 625
])], [
  AC_MSG_RESULT([yes])
  AC_DEFINE([HAVE_STATIC_ASSERT], [1], [Define to 1 if <assert.h> defines static_assert.])
], [
  AC_MSG_RESULT([no])
])

Rafaël Carré's avatar
Rafaël Carré committed
626
# Windows CE does not have strcoll()
627 628
AC_FUNC_STRCOLL

629
dnl Check for non-standard system calls
630 631
case "$SYS" in
  "linux")
632
    AC_CHECK_FUNCS([accept4 pipe2 eventfd vmsplice sched_getaffinity recvmmsg])
633
    ;;
634 635 636
  "mingw32")
    AC_CHECK_FUNCS([_lock_file])
    ;;
637
esac
638

639 640
AH_BOTTOM([#include <vlc_fixups.h>])

641 642 643 644 645
dnl Check for struct pollfd
AC_CHECK_TYPES([struct pollfd],,,
[#include <sys/types.h>
#if HAVE_POLL
# include <poll.h>
646
#elif defined (_WIN32)
647 648 649 650
# include <winsock2.h>
#endif
])

651 652 653 654
dnl Check for struct timespec
AC_CHECK_TYPES([struct timespec],,,
[#include <time.h>])

655 656 657 658
dnl Check for max_align_t
AC_CHECK_TYPES([max_align_t],,,
[#include <stddef.h>])

659
dnl Checks for socket stuff
660
VLC_SAVE_FLAGS
661 662 663 664 665 666 667 668 669 670
SOCKET_LIBS=""
AC_SEARCH_LIBS(connect, [socket], [
  AS_IF([test "$ac_cv_search_connect" != "none required"], [
    SOCKET_LIBS="$ac_cv_search_connect"
  ])
], [
  AS_IF([test "${SYS}" = "mingw32"], [
    SOCKET_LIBS="-lws2_32"
  ])
])
671

672
AC_SEARCH_LIBS([inet_pton], [nsl], [
Fabrizio Ge's avatar
Fabrizio Ge committed
673 674
 AS_IF([test "$ac_cv_search_inet_pton" != "none required"], [
    SOCKET_LIBS="$ac_cv_search_inet_pton $SOCKET_LIBS"
675 676 677
  ])
],, [${SOCKET_LIBS}])

678 679
LIBS="${LIBS} ${SOCKET_LIBS}"
AC_LINK_IFELSE([
680
    AC_LANG_PROGRAM([#ifdef _WIN32
681 682 683
        # if _WIN32_WINNT < 0x600
        #  error Needs vista+
        # endif
684 685
        #include <ws2tcpip.h>
        #else
686
        #include <sys/socket.h>
687 688 689 690 691
        #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])])
692
AC_CHECK_FUNCS([if_nameindex if_nametoindex])
693
VLC_RESTORE_FLAGS
694
AC_SUBST(SOCKET_LIBS)
695

696
dnl Check for socklen_t
697
AH_TEMPLATE(socklen_t, [Define to `int' if <sys/socket.h> does not define.])
Rafaël Carré's avatar
Rafaël Carré committed
698
AC_CACHE_CHECK([for socklen_t in sys/socket.h], dnl ` (fix VIM syntax highlight
699 700
ac_cv_type_socklen_t,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
701
[#include <sys/types.h>
702
#ifdef _WIN32
703
# include <winsock2.h>
704
# include <ws2tcpip.h>
705 706
#else
# include <sys/socket.h>
707 708 709 710 711
#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_DEFINE(socklen_t, int)])
712

713
dnl Check for struct sockaddr_storage
Rafaël Carré's avatar
Rafaël Carré committed
714 715
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
716 717 718
AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_struct_sockaddr_storage,
  [AC_TRY_COMPILE(
    [#include <sys/types.h>
719
     #if defined( _WIN32 )
720 721 722 723 724 725
     # 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)])
726
AS_IF([test "${ac_cv_struct_sockaddr_storage}" = no], [
727 728
  AC_DEFINE(sockaddr_storage, sockaddr)
  AC_DEFINE(ss_family, sa_family)
729
])
730

731 732 733 734 735 736 737 738
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)
739

Sam Hocevar's avatar
Sam Hocevar committed
740
AC_CHECK_LIB(m,cos,[
741 742 743
  LIBM="-lm"
], [
  LIBM=""
744
])
745
AC_SUBST(LIBM)
Sam Hocevar's avatar
Sam Hocevar committed
746

747 748 749 750
AC_CHECK_LIB(m,lrintf, [
  AC_DEFINE(HAVE_LRINTF, 1, [Define to 1 if you have the lrintf function])
  VLC_ADD_LIBS([skins2],[-lm])
])
Thomas Guillem's avatar
Thomas Guillem committed
751 752 753
AC_CHECK_LIB(m,nanf,
  AC_DEFINE(HAVE_NANF, 1, [Define to 1 if you have the NANF function])
)
754

Sam Hocevar's avatar
Sam Hocevar committed
755
dnl Check for dynamic plugins
756 757
LIBDL=""
have_dynamic_objects="no"
758
VLC_SAVE_FLAGS
759
AC_SEARCH_LIBS(dlsym, [dl svld], [
760 761
  AS_IF([test "$ac_cv_search_dlsym" != "none required"], [
    LIBDL="$ac_cv_search_dlsym"
762
  ])
763
  have_dynamic_objects="yes"
764
])
765
VLC_RESTORE_FLAGS
Sam Hocevar's avatar
Sam Hocevar committed
766

767
# Windows
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
768
AS_IF([test "${SYS}" = "mingw32"], [
769
  LIBDL=""
770
  have_dynamic_objects="yes" #assume we can use shared objects
771
])
772

773 774
AS_IF([test "${enable_shared}" = "no"], [
  have_dynamic_objects=no
775
])
Rafaël Carré's avatar
Rafaël Carré committed
776 777
AM_CONDITIONAL(HAVE_DYNAMIC_PLUGINS, [test "${have_dynamic_objects}" != "no"])

778
AC_SUBST(LIBDL)
Sam Hocevar's avatar
Sam Hocevar committed
779

780
dnl Check for thread library
781 782
LIBPTHREAD=""
AS_IF([test "${SYS}" != "mingw32"], [
783
  VLC_SAVE_FLAGS
Rafaël Carré's avatar
Rafaël Carré committed
784 785
  LIBS=""
  AC_SEARCH_LIBS(pthread_rwlock_init, pthread pthreads c_r, [
786 787 788
    AS_IF([test "$ac_cv_search_pthread_rwlock_init" != "none required"], [
      LIBPTHREAD="$ac_cv_search_pthread_rwlock_init"
    ])
789 790
  ])
  VLC_RESTORE_FLAGS
791 792
])
AC_SUBST(LIBPTHREAD)
793

794 795 796 797 798 799 800 801
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"
802
    ])
803
  ])
804
])
805
AC_SUBST(LIBRT)
806

807
dnl
808
dnl Check for headers
809 810
dnl

811
dnl  POSIX
812
AC_CHECK_HEADERS([arpa/inet.h pthread.h search.h sys/shm.h sys/socket.h sys/uio.h])
813 814 815 816 817
AC_CHECK_HEADERS([net/if.h], [], [],
[
#include <sys/types.h>
#include <sys/socket.h>
])
818 819 820
AC_CHECK_HEADER([syslog.h], [have_syslog="yes"], [have_syslog="no"])
AM_CONDITIONAL([HAVE_SYSLOG], [test "$have_syslog" = "yes"])

821 822
dnl  BSD
AC_CHECK_HEADERS([netinet/udplite.h sys/param.h sys/mount.h])
823

824
dnl  GNU/Linux
825
AC_CHECK_HEADERS([features.h getopt.h linux/dccp.h linux/magic.h mntent.h sys/eventfd.h])
826

827 828
dnl  MacOS
AC_CHECK_HEADERS([xlocale.h])
829

830
dnl LP64 and LLP64 architectures had better define ssize_t by themselves...
Rafaël Carré's avatar
Rafaël Carré committed
831
AH_TEMPLATE(ssize_t, [Define to `int' if <stddef.h> does not define.]) dnl ` (fix VIM syntax highlight
832 833 834 835
AC_CHECK_TYPE(ssize_t,, [
  AC_DEFINE(ssize_t, int)
])

Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
836 837 838
dnl It seems that autoconf detects pkg-config only during the first
dnl PKG_CHECK_MODULES from configure.ac - which makes sense. But in our case,
dnl it is nested within a conditional block, so it was not working right.
839
dnl Make PKG_CONFIG_PATH precious so that it appears in the help and get saved
840
AC_ARG_VAR(PKG_CONFIG_PATH,
841
       [Paths where to find .pc not at the default location])
842 843
PKG_PROG_PKG_CONFIG()

Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
844
dnl On some OS we need static linking
845
AS_IF([test -n "${PKG_CONFIG}" ],[
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
846
    AS_IF([test "${SYS}" = "mingw32" -o "${SYS}" = "darwin" -o "${SYS}" = "os2" ],[
847 848 849
        PKG_CONFIG="${PKG_CONFIG} --static"
    ])
])
850 851


852 853
dnl
dnl Check for zlib.h and -lz along with system -lminizip if available
854
dnl
855 856 857 858
AC_CHECK_HEADERS(zlib.h, [ have_zlib=yes ], [ have_zlib=no ])
AM_CONDITIONAL(HAVE_ZLIB, [ test "${have_zlib}" = "yes" ])
if test "${have_zlib}" = "yes"
then
859
  VLC_ADD_LIBS([skins2 sap unzip zip],[-lz])
860
  PKG_CHECK_MODULES([MINIZIP], [minizip] , [ have_minizip=yes ], [
Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
861
    AC_CHECK_HEADERS([unzip.h], [
862 863 864
      have_minizip=yes
      MINIZIP_LIBS="-lminizip -lz"
    ], [
865
      VLC_ADD_CPPFLAGS([skins2], [-I\\\$(top_srcdir)/modules/access/zip/unzip])
Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
866
      VLC_ADD_LIBS([skins2], [\\\$(top_builddir)/modules/libunzip.la])
867 868 869 870
      have_minizip=no
    ])
  ])
  VLC_ADD_CPPFLAGS([skins2],[$MINIZIP_CFLAGS])
871
  VLC_ADD_LIBS([skins2],[$MINIZIP_LIBS])
872
fi
873
AM_CONDITIONAL(HAVE_MINIZIP, [ test "${have_minizip}" = "yes" ])
874 875


876 877 878 879 880 881 882 883 884 885 886
dnl
dnl Domain name i18n support via GNU libidn
dnl
PKG_CHECK_MODULES([IDN], [libidn], [
  have_libidn="yes"
  AC_DEFINE([HAVE_IDN], 1, [Define to 1 if you have GNU libidn.])
], [
  have_libidn="no"
])


887 888
dnl Check for dbus
AC_ARG_ENABLE(dbus,
889 890
  [AS_HELP_STRING([--enable-dbus],
    [compile D-Bus message bus support (default enabled)])])
891 892
have_dbus="no"
AS_IF([test "${enable_dbus}" != "no"], [
893
  PKG_CHECK_MODULES(DBUS, [dbus-1 >= 1.6.0], [
894 895 896 897 898 899 900 901 902 903
    have_dbus="yes"
  ], [
    AS_IF([test -n "${enable_dbus}"], [
      AC_MSG_ERROR([${DBUS_PKG_ERRORS}.])
    ], [
      AC_MSG_WARN([${DBUS_PKG_ERRORS}.])
    ])
  ])
])
AM_CONDITIONAL([HAVE_DBUS], [test "${have_dbus}" = "yes"])
904

905 906 907 908 909 910 911 912 913 914

dnl Check for systemd
PKG_CHECK_MODULES([SYSTEMD], [libsystemd], [
  have_systemd="yes"
], [
  AC_MSG_WARN([${SYSTEMD_PKG_ERRORS}.])
])
AM_CONDITIONAL([HAVE_SYSTEMD], [test "${have_systemd}" = "yes"])


915
dnl Check for ntohl, etc.
916 917
VLC_SAVE_FLAGS
CFLAGS="${CFLAGS} -Wall -Werror"
918
AC_CACHE_CHECK([for ntohl in sys/param.h],
919
    [ac_cv_c_ntohl_sys_param_h],
920
    [     AC_TRY_COMPILE([#include <sys/param.h>],
921
        [int meuh; ntohl(meuh);],
922
        ac_cv_c_ntohl_sys_param_h=yes, ac_cv_c_ntohl_sys_param_h=no)])
Sam Hocevar's avatar
Sam Hocevar committed
923
if test "${ac_cv_c_ntohl_sys_param_h}" != "no"; then
924
    AC_DEFINE(NTOHL_IN_SYS_PARAM_H, 1, Define if <sys/param.h> defines ntohl.)
925
fi
926
VLC_RESTORE_FLAGS
927 928 929 930 931

EXTEND_HELP_STRING([Optimization options:])
dnl
dnl  Compiler warnings
dnl
932

933
RDC_PROG_CC_WFLAGS([all extra sign-compare undef pointer-arith bad-function-cast write-strings missing-prototypes volatile-register-var error-implicit-function-declaration init-self logical-op format-security])
Pierre's avatar
Pierre committed
934
RDC_PROG_CC_FLAGS([-pipe])
935
AC_LANG_PUSH([C++])
936
RDC_PROG_CXX_WFLAGS([all extra sign-compare undef pointer-arith volatile-register-var format-security])
937
AC_LANG_POP([C++])
938

939 940 941 942 943
dnl
dnl  Debugging mode
dnl
AC_ARG_ENABLE(debug,
  [AS_HELP_STRING([--enable-debug],
944
    [build with run-time assertions (default disabled)])],,
945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989
  [enable_debug="no"])
AH_TEMPLATE(NDEBUG,
            [Define to 1 if debug code should NOT be compiled])
AS_IF([test "${enable_debug}" != "no"], [
  AC_CHECK_HEADERS([valgrind/valgrind.h])
], [
  AC_DEFINE(NDEBUG)
])

dnl
dnl  Profiling
dnl
AC_ARG_ENABLE(gprof,
  [AS_HELP_STRING([--enable-gprof],[profile with gprof (default disabled)])],,
  [enable_gprof="no"])
AS_IF([test "${enable_gprof}" != "no"], [
  CFLAGS="${CFLAGS} -pg"
  CXXFLAGS="${CXXFLAGS} -pg"
  OBJCFLAGS="${OBJCFLAGS} -pg"
  LDFLAGS="${LDFLAGS} -pg"
])

AC_ARG_ENABLE(cprof,
  [AS_HELP_STRING([--enable-cprof],[profile with cprof (default disabled)])],,
  [enable_cprof="no"])
AS_IF([test "${enable_gprof}" != "no"], [
  CFLAGS="${CFLAGS} -finstrument-functions"
  CXXFLAGS="${CXXFLAGS} -finstrument-functions"
  OBJCFLAGS="${OBJCFLAGS} -finstrument-functions"
  LDFLAGS="${LDFLAGS} -finstrument-functions"
])

dnl
dnl  Test coverage
dnl
AC_ARG_ENABLE(coverage,
  [AS_HELP_STRING([--enable-coverage],
    [build for test coverage (default disabled)])],,
  [enable_coverage="no"])
AS_IF([test "${enable_coverage}" != "no"], [
  CFLAGS="-fprofile-arcs -ftest-coverage ${CFLAGS}"
  CXXFLAGS="-fprofile-arcs -ftest-coverage ${CXXFLAGS}"
  LDFLAGS="-lgcov ${LDFLAGS}"
])

990
AS_IF([test "${SYS}" != "mingw32" -a "${SYS}" != "os2"], [
991 992 993 994
  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -fvisibility=hidden"
  CXXFLAGS="${CXXFLAGS} -fvisibility=hidden"
  OBJCFLAGS="${OBJCFLAGS} -fvisibility=hidden"
995 996 997 998 999 1000 1001 1002
  AC_CACHE_CHECK([if $CC accepts -fvisibility=hidden],
                 [ac_cv_c_visibility_hidden], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
      ac_cv_c_visibility_hidden=yes
    ], [
      ac_cv_c_visibility_hidden=no
    ])
  ])
1003
  AS_IF([test "${ac_cv_c_visibility_hidden}" = "no"], [VLC_RESTORE_FLAGS])
1004 1005
])

1006

1007 1008 1009 1010 1011 1012 1013 1014
dnl
dnl  Enable/disable optimizations
dnl
AC_ARG_ENABLE(optimizations,
  [AS_HELP_STRING([--disable-optimizations],
    [disable compiler optimizations (default enabled)])],,
  [enable_optimizations="yes"])

1015
dnl Check for various optimization flags
1016 1017
AS_IF([test "${enable_optimizations}" != "no"], [

1018
  dnl -O3 only in production builds
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
1019
  AS_IF([test "${enable_debug}" = "no"], [
1020
    VLC_SAVE_FLAGS
1021 1022 1023 1024
    CFLAGS="${CFLAGS} -O3"
    CXXFLAGS="${CXXFLAGS} -O3"
    OBJCFLAGS="${OBJCFLAGS} -O3"
    AC_CACHE_CHECK([if $CC accepts -O3],  [ac_cv_c_o3], [
1025
      AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
1026
        ac_cv_c_o3=yes
1027
      ], [
1028
        ac_cv_c_o3=no
1029 1030
      ])
    ])
1031
    AS_IF([test "${ac_cv_c_o3}" = "no"], [VLC_RESTORE_FLAGS])
1032
  ])
1033

1034 1035 1036 1037 1038 1039 1040
  dnl Check for fast maths
  RDC_PROG_CC_FFLAGS([no-math-errno unsafe-math-optimizations no-rounding-math no-signaling-nans cx-limited-range])
  AC_LANG_PUSH(C++)
  RDC_PROG_CXX_FFLAGS([no-math-errno unsafe-math-optimizations no-rounding-math no-signaling-nans cx-limited-range])
  AC_LANG_POP

AH_BOTTOM([
1041
#if defined(_MSC_VER) && !defined(__clang__)
1042 1043 1044 1045 1046 1047 1048
# pragma fenv_access(off)
# pragma fp_contract(on)
#elif defined(__GNUC__)
/* Not supported so far */
#else
# pragma STDC FENV_ACCESS OFF
# pragma STDC FP_CONTRACT ON
1049 1050
#endif
])
1051

1052
  dnl Check for -funroll-loops
1053 1054 1055 1056
  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -funroll-loops"
  CXXFLAGS="${CXXFLAGS} -funroll-loops"
  OBJCFLAGS="${OBJCFLAGS} -funroll-loops"
1057 1058 1059 1060 1061 1062 1063
  AC_CACHE_CHECK([if $CC accepts -funroll-loops], [ac_cv_c_unroll_loops], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
      ac_cv_c_unroll_loops=yes
    ], [
      ac_cv_c_unroll_loops=no
    ])
  ])
1064
  AS_IF([test "${ac_cv_c_unroll_loops}" = "no"], [VLC_RESTORE_FLAGS])
1065 1066 1067

  AS_IF([test "$enable_debug" = "no"], [
    dnl Check for -fomit-frame-pointer
1068 1069 1070 1071
    VLC_SAVE_FLAGS
    CFLAGS="${CFLAGS} -fomit-frame-pointer"
    CXXFLAGS="${CXXFLAGS} -fomit-frame-pointer"
    OBJCFLAGS="${OBJCFLAGS} -fomit-frame-pointer"
1072 1073 1074 1075 1076 1077 1078 1079
    AC_CACHE_CHECK([if $CC accepts -fomit-frame-pointer],
      [ac_cv_c_omit_frame_pointer], [
      AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
        ac_cv_c_omit_frame_pointer=yes
      ], [
        ac_cv_c_omit_frame_pointer=no
      ])
    ])
1080
    AS_IF([test "${ac_cv_c_omit_frame_pointer}" = "no"], [VLC_RESTORE_FLAGS])
1081 1082
  ])
])
1083

1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096
VLC_SAVE_FLAGS
LDFLAGS="${LDFLAGS} -Wl,-Bsymbolic"
AC_CACHE_CHECK([if linker supports -Bsymbolic], [ac_cv_ld_bsymbolic], [
  AC_TRY_LINK([],, [
    ac_cv_ld_bsymbolic="-Wl,-Bsymbolic"
  ], [
    ac_cv_ld_bsymbolic=""
  ])
])
VLC_RESTORE_FLAGS
SYMBOLIC_LDFLAGS="${ac_cv_ld_bsymbolic}"
AC_SUBST(SYMBOLIC_LDFLAGS)

1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107
VLC_SAVE_FLAGS
LDFLAGS="${LDFLAGS} -Wl,-z,defs"
AC_CACHE_CHECK([if linker supports -z,defs], [ac_cv_ld_z_defs], [
  AC_TRY_LINK([],, [
    ac_cv_ld_z_defs="yes"
  ], [
    ac_cv_ld_z_defs="no"
  ])
])
AS_IF([test "${ac_cv_ld_z_defs}" = "no"], [VLC_RESTORE_FLAGS])

1108
dnl Checks for __attribute__(aligned()) directive
1109 1110
VLC_SAVE_FLAGS
CFLAGS="${CFLAGS} -Werror"
1111
AC_CACHE_CHECK([__attribute__ ((aligned ())) support],
1112 1113 1114 1115 1116 1117
    [ac_cv_c_attribute_aligned],
    [ac_cv_c_attribute_aligned=0
    for ac_cv_c_attr_align_try in 2 4 8 16 32 64; do
        AC_TRY_COMPILE([],
        [static char c __attribute__ ((aligned(${ac_cv_c_attr_align_try}))) = 0; return c;],
        [ac_cv_c_attribute_aligned="${ac_cv_c_attr_align_try}"])
1118 1119
    done])
VLC_RESTORE_FLAGS
Sam Hocevar's avatar
Sam Hocevar committed
1120
if test "${ac_cv_c_attribute_aligned}" != "0"; then
1121 1122
    AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX],
        [${ac_cv_c_attribute_aligned}],[Maximum supported data alignment])
1123 1124
fi

1125
dnl Check for __attribute__((packed))
1126 1127 1128
AC_CACHE_CHECK([for __attribute__((packed))],
  [ac_cv_c_attribute_packed],
  [ac_cv_c_attribute_packed=no
1129
   AC_TRY_COMPILE(, [struct __attribute__((__packed__)) foo { int a; } b; (void)b;],
1130
                    [ac_cv_c_attribute_packed=yes])])
1131
if test "${ac_cv_c_attribute_packed}" != "no"; then
1132 1133 1134
  AC_DEFINE(HAVE_ATTRIBUTE_PACKED, 1, Support for __attribute__((packed)) for structs)
fi

1135 1136 1137
dnl
dnl  Check the CPU
dnl
1138
case "${host_cpu}" in
Sam Hocevar's avatar
Sam Hocevar committed
1139
  "")