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Sur d’autres sites (11195)

  • configure.ac : relax linux OS detection

    9 janvier 2017, par Peter Korsgaard
    configure.ac : relax linux OS detection

    Not all linux hosts match the *-pc-linux-gnu wildcard, causing build
    
failures for older glibc versions where we need to link with -lrt for
    
clock_gettime - E.G. :
    

     - arm-unknown-linux-musleabihf
    
 - powerpc-unknown-linux-gnuspe
    
 - bfin-linux-linux-uclibc
    
 ..
    

    Signed-off-by : Peter Korsgaard <peter@korsgaard.com>
    
Signed-off-by : Erik de Castro Lopo <erikd@mega-nerd.com>
    • [DH] configure.ac

  • Compiling ffmpeg : how to force it to link to a specific libx264 ?

    29 août 2012, par PaulJ

    I'm trying to compile the newest version of ffmpeg (in CentOS 5.3). I first downloaded the latest version of libx264, compiled it with --enable-static and installed it in /usr/local/. However, when I then compile ffmpeg I get this error message :

    libavcodec/libavcodec.a(libx264.o): In function `X264_init&#39;:
    
/usr/local/src/ffmpeg/libavcodec/libx264.c:494: undefined reference to `x264_encoder_open_125&#39;
    
collect2: ld returned 1 exit status
    
make: *** [ffmpeg_g] Error 1

    Searching on the net, I see that this can happen if ffmpeg is picking up an older version of libx264, which I indeed have (in /usr/lib) and can't uninstall because other pieces of software depend on it. The question is then : how can I force ffmpeg to link against the libx264 that I want ? The last time I had to do this (admittedly a year ago) I also had 2 versions of libx264, and I don't remember having to do anything special. Is there a configure switch that I'm forgetting ?

  • Compiling ffmpeg : how to force it to link to a specific libx264 ?

    29 août 2012, par PaulJ

    I'm trying to compile the newest version of ffmpeg (in CentOS 5.3). I first downloaded the latest version of libx264, compiled it with --enable-static and installed it in /usr/local/. However, when I then compile ffmpeg I get this error message :

    libavcodec/libavcodec.a(libx264.o): In function `X264_init&#39;:
    
/usr/local/src/ffmpeg/libavcodec/libx264.c:494: undefined reference to `x264_encoder_open_125&#39;
    
collect2: ld returned 1 exit status
    
make: *** [ffmpeg_g] Error 1

    Searching on the net, I see that this can happen if ffmpeg is picking up an older version of libx264, which I indeed have (in /usr/lib) and can't uninstall because other pieces of software depend on it. The question is then : how can I force ffmpeg to link against the libx264 that I want ? The last time I had to do this (admittedly a year ago) I also had 2 versions of libx264, and I don't remember having to do anything special. Is there a configure switch that I'm forgetting ?

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