On Fri, Sep 9, 2016 at 12:46 PM, Carl Eugen Hoyos <[email protected]> wrote:
> 2016-09-09 16:08 GMT+02:00 Leonardo Nahra <[email protected]>: > > On Fri, Sep 9, 2016 at 6:59 AM, Carl Eugen Hoyos <[email protected]> > wrote: > > >> > --enable-pthreads > >> > --extra-libs=pthreadVC2.lib > >> > >> What does threading support show if you omit these two lines? > > > > It shows "threading support w32threads" > > Why is this bad? > > You will have to post the relevant lines from config.log if > you need pthread support. I'm not sure what the relevant lines of the config.log would be, but I found some lines that may be related to this problem: check_func posix_memalign check_ld cc check_cc BEGIN ./ffconf.SDAJxYXo.c 1 extern int posix_memalign(); 2 int main(void){ posix_memalign(); } END ./ffconf.SDAJxYXo.c c99wrap cl -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Dstrtod=avpriv_strtod -Dsnprintf=avpriv_snprintf -D_snprintf=avpriv_snprintf -Dvsnprintf=avpriv_vsnprintf -D_WIN32_WINNT=0x0502 -nologo -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS -I/home/%username%/ffmpeg/include -c -Fo./ffconf.UUlikmky.o ./ffconf.SDAJxYXo.c ffconf.UUlikmky.o_converted.c ./compat/windows/mslink -L/home/%username%/ffmpeg/lib -nologo -LARGEADDRESSAWARE -out:./ffconf.omVGyQVw.exe ./ffconf.UUlikmky.o pthreadVC2.lib LINK : warning LNK4044: unrecognized option '/LC:/c99/home/%username%/ffmpeg/lib'; ignored ffconf.UUlikmky.o : error LNK2019: unresolved external symbol _posix_memalign referenced in function _main ./ffconf.omVGyQVw.exe : fatal error LNK1120: 1 unresolved externals ... check_func pthread_create -pthread check_ld cc -pthread check_cc -pthread BEGIN ./ffconf.SDAJxYXo.c 1 extern int pthread_create(); 2 int main(void){ pthread_create(); } END ./ffconf.SDAJxYXo.c c99wrap cl -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Dstrtod=avpriv_strtod -Dsnprintf=avpriv_snprintf -D_snprintf=avpriv_snprintf -Dvsnprintf=avpriv_vsnprintf -D_WIN32_WINNT=0x0502 -nologo -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS -I/home/%username%/ffmpeg/include -pthread -c -Fo./ffconf.UUlikmky.o ./ffconf.SDAJxYXo.c cl : Command line warning D9002 : ignoring unknown option '-pthread' ffconf.UUlikmky.o_converted.c ./compat/windows/mslink -L/home/%username%/ffmpeg/lib -nologo -LARGEADDRESSAWARE -pthread -out:./ffconf.omVGyQVw.exe ./ffconf.UUlikmky.o psapi.lib advapi32.lib shell32.lib pthreadVC2.lib LINK : warning LNK4044: unrecognized option '/LC:/c99/home/%username%/ffmpeg/lib'; ignored LINK : warning LNK4044: unrecognized option '/pthread'; ignored this error is repeated with several other functions that may be related to pthread. I'm trying to compile ffmpeg with pthread support because when I try to run a project (that used an older ffmpeg version) with the version that I compiled, I get the following error right after calling the function avio_open(): [udp @ ...] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required) Than you, Nahra
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