#4366: Error building libavutil on Mac OS X 10.9.5 and clang 6.0
-------------------------------------+-------------------------------------
Reporter: mario_grgic | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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I have been successfully building ffmpeg on Mac OS X for years now,
including version 2.5.2 that I built last.
But when I attempted latest ffmpeg-2.6 I run into error in
libavutil/opencl.c:
{{{
libavutil/opencl.c:42:44: note: expanded from macro 'UNLOCK_OPENCL'
#define UNLOCK_OPENCL pthread_mutex_unlock(atomic_opencl_lock)
^~~~~~~~~~~~~~~~~~
/usr/include/pthread.h:363:43: note: passing argument to parameter here
int pthread_mutex_unlock(pthread_mutex_t *);
^
libavutil/opencl.c:592:5: warning: passing 'volatile pthread_mutex_t *'
(aka 'volatile struct _opaque_pthread_mutex_t *') to parameter of
type 'pthread_mutex_t *' (aka
'struct _opaque_pthread_mutex_t *') discards qualifiers
[-Wincompatible-pointer-types-discards-qualifiers]
LOCK_OPENCL;
^~~~~~~~~~~
libavutil/opencl.c:41:40: note: expanded from macro 'LOCK_OPENCL'
#define LOCK_OPENCL pthread_mutex_lock(atomic_opencl_lock)
^~~~~~~~~~~~~~~~~~
/usr/include/pthread.h:353:41: note: passing argument to parameter here
int pthread_mutex_lock(pthread_mutex_t *);
^
libavutil/opencl.c:614:10: error: use of undeclared identifier 'i'
for (i = 0; i < opencl_ctx.kernel_code_count; i++) {
^
libavutil/opencl.c:614:17: error: use of undeclared identifier 'i'
for (i = 0; i < opencl_ctx.kernel_code_count; i++) {
^
libavutil/opencl.c:614:51: error: use of undeclared identifier 'i'
for (i = 0; i < opencl_ctx.kernel_code_count; i++) {
^
libavutil/opencl.c:615:32: error: use of undeclared identifier 'i'
opencl_ctx.kernel_code[i].is_compiled = 0;
^
libavutil/opencl.c:621:5: warning: passing 'volatile pthread_mutex_t *'
(aka 'volatile struct _opaque_pthread_mutex_t *') to parameter of
type 'pthread_mutex_t *' (aka
'struct _opaque_pthread_mutex_t *') discards qualifiers
[-Wincompatible-pointer-types-discards-qualifiers]
UNLOCK_OPENCL;
^~~~~~~~~~~~~
}}}
This is with
$ clang --version
Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn)
Target: x86_64-apple-darwin13.4.0
Thread model: posix
on Mac OS X 10.9.5
ffmpeg was configured as follows
./configure --prefix=/Volumes/ramdisk/ffmpeg --as=yasm --disable-shared
--enable-static --disable-ffplay --disable-ffserver --enable-gpl --enable-
pthreads --enable-postproc --enable-gray --enable-libfaac --enable-
libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264
--enable-libxvid --enable-libspeex --enable-bzlib --enable-zlib --enable-
libopencore-amrnb --enable-libopencore-amrwb --enable-nonfree --enable-
version3 --enable-runtime-cpudetect --enable-libvo-aacenc --enable-libvo-
amrwbenc --enable-avresample --enable-opengl --enable-opencl
--datadir=/usr/share/ffmpeg --mandir=/usr/share/man
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4366>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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