[Ffmpeg-devel] OSX linker option error

[Barry Cooper]

> Hi,
>
> I am compiling on OS X 10.3.9 with an aim to producing libavcodec.so 
> to use in transcode.
>
> Configuring with the following flags should do this, apparently:
>
>      ./configure --enable-shared --enable=pthreads
>
>
> However, I get the same libtool linker error as discussed in this 
> thread. Removing the "-d" from the LDFLAGS line in config.mak gives me 
> the following output:
>
> % make
> make -C libavcodec all
> cc -dynamiclib -o
> libavcodec.so common.o utils.o mem.o allcodecs.o mpegvideo.o jrevdct.o 
> jfdctfst.o jfdctint.o mpegaudio.o ac3enc.o mjpeg.o resample.o 
> resample2.o dsputil.o motion_est.o imgconvert.o imgresample.o mpeg12.o 
> mpegaudiodec.o pcm.o
>  simple_idct.o ratecontrol.o adpcm.o eval.o dv.o error_resilience.o 
> fft.o mdct.o mace.o huffyuv.o cyuv.o opts.o raw.o h264.o golomb.o 
> vp3.o asv1.o 4xm.o cabac.o ffv1.o ra144.o ra288.o vcr1.o cljr.o 
> roqvideo.o dpcm.o interplayvideo.o
>  xan.o rpza.o cinepak.o msrle.o msvideo1.o vqavideo.o idcinvideo.o 
> adx.o rational.o faandct.o 8bps.o smc.o parser.o flicvideo.o 
> truemotion1.o vmdav.o lcl.o qtrle.o g726.o flac.o vp3dsp.o integer.o 
> h263.o h261.o msmpeg4.o
> h263dec.o svq1.o rv10.o wmadec.o indeo3.o ppc/dsputil_ppc.o 
> ppc/mpegvideo_ppc.o ppc/dsputil_altivec.o ppc/mpegvideo_altivec.o 
> ppc/idct_altivec.o ppc/fft_altivec.o ppc/gmc_altivec.o 
> ppc/fdct_altivec.o  -lz   -Wl
> ld: common symbols not allowed with MH_DYLIB output format with the 
> -multi_module option
>
> utils.o definition of common _first_avcodec (size 4)
> dsputil.o definition of common _squareTbl (size 2048)
> dsputil.o definition of common _cropTbl (size 2304)
> dsputil.o definition of common _inv_zigzag_direct16 (size 128)
>
> ppc/dsputil_ppc.o definition of common _perfdata (size 2304)
> /usr/bin/libtool: internal link edit command failed
> make[1]: *** [libavcodec.so] Error 1
> make: *** [lib] Error 2
>
>
> Any ideas?
>
> Barry (compiling newbie).
>
>
>
>
>
>
> On Monday 11 July 2005 22:59, Steven M. Schultz wrote:
> Hi
>         An extraneous option (-d) crept in and causes building on OSX 
> to fail
>
> make -C vhook all
> cc -fPIC -O3 -g -Wall -Wno-switch  -no-cpp-precomp -pipe 
> -fomit-frame-pointer -force_cpusubtype_ALL -Wno-sign-compare -faltivec 
> -I.. -I'/usr/local/src/ffmpeg' -I'/usr/local/src/ffmpeg'/libavformat 
> -I'/usr/local/src/ffmpeg'/libavcodec -DHAVE_AV_CONFIG_H 
> `freetype-config --cflags`   -c -o
> null.o null.c
> null.c: In function 'Process':
> null.c:59: warning: pointer targets in passing argument 2 of 
> 'avpicture_fill' differ in signedness
> cc -Wl,-d,-search_paths_first -g -o null.so -dynamiclib 
> -flat_namespace -undefined suppress
> null.o
> /usr/bin/libtool: unknown option character `d' in: -d
> Usage: /usr/bin/libtool -static [-] file [...] [-filelist 
> listfile[,dirname]] [-arch_only arch] [-sacLT]
> Usage: /usr/bin/libtool -dynamic [-] file [...] [-filelist 
> listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] 
> [-compatibility_version #] [-current_version #] [-seg1addr 0x#] 
> [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] 
> [-seg_addr_table <filename>] [-seg_addr_table_filename 
> <file_system_path>] [-all_load] [-noall_load]
>
> make[1]: *** [null.so] Error 1
> rm null.o
> make: *** [videohook] Error 2
>
>
>     -search_paths_first is a valid option but -d is not.  The attached
>       patch simply removes the un-needed -d
>
>    Cheers,
>
>         Steven Schultz
> -------------- next part --------------
> --- configure.dist 2005-07-11 07:37:38.000000000 -0700
> +++ configure        2005-07-11 13:56:09.000000000 -0700
> @@ -312,7 +312,7 @@
>  extralibs=""
>
>  darwin="yes"
>  strip="strip -x"
> -LDFLAGS="-Wl,-d,-search_paths_first"
> +LDFLAGS="-Wl,-search_paths_first"
>  FFSLDFLAGS=-Wl,-bind_at_load
>  ;;
>  MINGW32*)



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cooperb at iee.org
+44 7811 106326
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