gst-ffmpeg fails to build when using i386 arch and 10.5 target

[andres.colubri@…]

Hello, when trying to install the gst-ffmpeg package on Snow Leopard 64 bits, but using i386 as the build architecture and 10.5 as the deployment target, the build stage fails with this error:

:info:build CC	libavcodec/h264_cabac.o
:info:build libavcodec/cabac.h: In function 'get_cabac_noinline':
:info:build libavcodec/cabac.h:527: error: PIC register '%ebx' clobbered in 'asm'
...

(full error log is attached)

I should also note that in order to generate valid 32 bits binaries for 10.5 when compiling from OSX 10.6 64 bits, I changed the default LD flags in <prefix>/share/macports/Tcl/port1.0/portconfigure.tcl as:

default configure.ldflags   {"-L${prefix}/lib -Xlinker -headerpad_max_install_names -mmacosx-version-min=10.5 -no_compact_linkedit"}

I don't know if this influencing the occurrence of the error. Anyways, a solution I found to this problem was to add the the following post-configure step in the portfile of gst-ffmpeg:

post-configure {
    if { $build_arch == "i386" } {
        reinplace "s|HAVE_EBX_AVAILABLE 1|HAVE_EBX_AVAILABLE 0|g" \
            ${worksrcpath}/gst-libs/ext/ffmpeg/config.h        
    }
}

[andres.colubri@…]

Cc Me!

[andres.colubri@…]

sorry, I forgot to fill in the port field, which should be gst-ffmpeg, but I cannot edit it afterwards.

BTW, this port appears to have no maintainer. Last person making a commit to the portfile is rmsfisher@…

[ryandesign (Ryan Carsten Schmidt)]

Partly this is already discussed in #24636.

[jmroot (Joshua Root)]

Please confirm that bugs are reproducible without your modifications to base in future before reporting. Your change is unnecessary in this case anyway; you should just set "macosx_deployment_target 10.5" in macports.conf.

[andres.colubri@…]

I did some more tests, in all cases I set "macosx_deployment_target 10.5" and "build_arch i386" in macports.conf.

If I don't apply the post-configure step I mentioned originally, the build stage fails with the reported error.

I tried both with the "-mmacosx-version-min=10.5 -no_compact_linkedit" linker options, and without. This seems to have no effect.

In case it is of any use, I'm running OSX 10.6.5 with gcc 4.2.1, but I think because the deployment target is set to 10.5, macports uses gcc 4.0 instead.

[fungos@…]

I had same problem. Same system and same solution.

[daitakahashi]

Cc Me!

[daitakahashi]

Discussion on #28935 can be applied to this problem.

[ryandesign (Ryan Carsten Schmidt)]

Has duplicate #32394.

[jmroot (Joshua Root)]

#24636 may be fixed now; please check how much of this is resolved because of that.

[cooljeanius (Eric Gallager)]

Cc Me!

[mf2k (Frank Schima)]

This port no longer exists.

[jmroot (Joshua Root)]

gstreamer010-gst-ffmpeg replaces it - but compiling for a different OS version isn’t really supported anyway.