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| author | Sebastian Dröge <sebastian.droege@collabora.co.uk> | 2009-12-01 14:06:47 +0100 |
|---|---|---|
| committer | Sebastian Dröge <sebastian.droege@collabora.co.uk> | 2009-12-01 14:07:33 +0100 |
| commit | 87bf428ac698d707055b66add588604da8c54bab (patch) | |
| tree | d236708ae61563a74f8b86c0a03949157815a9d6 /m4 | |
| parent | da4c75cfe0beed21391671e33f3bc99de4992aa2 (diff) | |
m4: Add gst-platform.m4 for platform specific checks and defines
These are currently copied from core but some/most of them are
useful for other modules too.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/gst-platform.m4 | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/m4/gst-platform.m4 b/m4/gst-platform.m4 new file mode 100644 index 0000000..c427c4f --- /dev/null +++ b/m4/gst-platform.m4 @@ -0,0 +1,55 @@ +dnl AG_GST_PLATFORM +dnl Check for platform specific features and define some variables +dnl +dnl GST_EXTRA_MODULE_SUFFIX: contains a platform specific +dnl extra module suffix additional to G_MODULE_SUFFIX +dnl +dnl HAVE_OSX: Defined if compiling for OS X +dnl +dnl GST_HAVE_UNSAFE_FORK: Defined if fork is unsafe (Windows) +dnl +dnl HAVE_WIN32: Defined if compiling on Win32 +dnl + +AC_DEFUN([AG_GST_PLATFORM], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + + case $host_os in + rhapsody*) + AC_DEFINE_UNQUOTED(GST_EXTRA_MODULE_SUFFIX, [".dylib"], [Extra platform specific plugin suffix]) + ;; + darwin*) + AC_DEFINE_UNQUOTED(GST_EXTRA_MODULE_SUFFIX, [".dylib"], [Extra platform specific plugin suffix]) + AC_DEFINE_UNQUOTED(HAVE_OSX, 1, [Defined if compiling for OSX]) + ;; + cygwin*) + AC_DEFINE_UNQUOTED(GST_HAVE_UNSAFE_FORK, 1, [Defined when registry scanning through fork is unsafe]) + ;; + mingw* | msvc* | mks*) + dnl HAVE_WIN32 currently means "disable POSIXisms". + AC_DEFINE_UNQUOTED(HAVE_WIN32, 1, [Defined if compiling for Windows]) + + dnl define __MSVCRT_VERSION__ version if not set already by the + dnl compiler (ie. mostly for mingw). This is needed for things like + dnl __stat64 to be available. If set by the compiler, ensure it's + dnl new enough - we need at least WinXP SP2. + AC_TRY_COMPILE([ ], [ return __MSVCRT_VERSION__; ], [ + AC_TRY_COMPILE([ ], [ + #if __MSVCRT_VERSION__ < 0x0601 + #error "MSVCRT too old" + #endif + ], [ + AC_MSG_NOTICE([MSVCRT version looks ok]) + ], [ + AC_MSG_ERROR([MSVCRT version too old, need at least WinXP SP2]) + ]) + ], [ + AC_MSG_NOTICE([Setting MSVCRT version to 0x0601]) + AC_DEFINE_UNQUOTED(__MSVCRT_VERSION__, 0x0601, [We need at least WinXP SP2 for __stat64]) + ]) + ;; + *) + ;; + esac +]) |