#2363: Default mingw32 compilation is broken by atomic
-------------------------------------+-------------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: important | Component: avutil
Version: git- | Keywords: win
master | regression
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
-------------------------------------+-------------------------------------
By default, FFmpeg uses w32threads if available.
The addition of "atomic" broke the default compilation on mingw32 because
it does not provide MemoryBarrier, work-around is to use --disable-
w32threads or --enable-pthreads.
{{{
$ ./configure
...
$ grep W32THREADS config.h
#define HAVE_W32THREADS 1
$ make libavutil/atomic.o
CC libavutil/atomic.o
libavutil/atomic.c:101:2: Fehler: #error "Threading is enabled, but there
is no implementation of atomic operations available"
common.mak:48: recipe for target 'libavutil/atomic.o' failed
make: *** [libavutil/atomic.o] Error 1
}}}
configure should at least abort if compilation cannot succeed.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2363>
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