On Fri, 2013-02-01 at 15:56 +0100, Mike Looijmans wrote:
> When compiling fontconfig, it fails because it is using "build" flags in
> the host compiler. I have BUILD_OPTIMIZATIONS="-march=native ..." set,
> and fontconfig will fail to compile because it passes the -march=native
> flag to the ARM compiler which then fails. Which is justified.
>
> This is the part in the recipe that worries me:
>
> do_configure_append () {
> sed -i 's|LDFLAGS =.*|LDFLAGS =|' fc-case/Makefile
> sed -i 's|LDFLAGS =.*|LDFLAGS =|' fc-glyphname/Makefile
> sed -i 's|LDFLAGS =.*|LDFLAGS =|' fc-lang/Makefile
>
> sed -i 's|CFLAGS =.*|CFLAGS =${BUILD_CFLAGS}|' fc-case/Makefile
> sed -i 's|CFLAGS =.*|CFLAGS =${BUILD_CFLAGS}|' fc-glyphname/Makefile
> sed -i 's|CFLAGS =.*|CFLAGS =${BUILD_CFLAGS}|' fc-lang/Makefile
>
> sed -i 's|CPPFLAGS =.*|CPPFLAGS =${BUILD_CPPFLAGS}|' fc-case/Makefile
> sed -i 's|CPPFLAGS =.*|CPPFLAGS =${BUILD_CPPFLAGS}|'
> fc-glyphname/Makefile
> sed -i 's|CPPFLAGS =.*|CPPFLAGS =${BUILD_CPPFLAGS}|' fc-lang/Makefile
>
> sed -i 's|CXXFLAGS =.*|CFLAGS =${BUILD_CXXFLAGS}|' fc-case/Makefile
> sed -i 's|CXXFLAGS =.*|CFLAGS =${BUILD_CXXFLAGS}|' fc-glyphname/Makefile
> sed -i 's|CXXFLAGS =.*|CFLAGS =${BUILD_CXXFLAGS}|' fc-lang/Makefile
>
> }
>
> This is not a "native" package. The above commands put the build systems
> include patch and compiler flags into the makefile.
>
> I've worked around the issue by creating a a bbappend that simply
> removes "-march=native" from the build flags, which makes the build of
> this package succeed.
>
> I have no idea what fontconfig is supposed to do and where it is
> supposed to run, but it looks to me as if that configure_append should
> not be there at all.
This does look rather worrying and Ross mentioned this to me but wasn't
able to find the history. I was more successful and ironically this was
introduced by Ross:
http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=c2d22f0f36980eecc7cf2ad818a5033476614bfc
We likely need to replace this with something sane. The question is
whether we need it at all and if so, what problem dies it solve?
Cheers,
Richard
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