[Aurora-sparc-devel] [SPARC64] libpng-1.2.8-1.fc3.src.rpm

[Tom 'spot' Callaway]

On Tue, 2006-05-16 at 12:43 +0200, Christian Joensson wrote:
> [Maybe a bit off topic here, let me know if I should drop this(these?)
> thread(threads), for now, I hope you can accept the information herein
> as memory support for me and others interested until the foot is set
> down on what the Aurora project wants with sparc64 variants...]
> 
> When I try to rpmbuild libpng-1.2.8-1.fc3.src.rpm like this:
> 
> rpmbuild --rebuild libpng-1.2.8-1.fc3.src.rpm --target=sparc64
> 
> I get an error like this:
> 
> gcc -shared -Wl,-soname,libpng12.so.0 -lz -lm \
> -o libpng12.so.0.1.2.8 \
> png.pic.o pngset.pic.o pngget.pic.o pngrutil.pic.o pngtrans.pic.o pngwutil.pic.o
>  pngread.pic.o pngrio.pic.o pngwio.pic.o pngwrite.pic.o pngrtran.pic.o pngwtran.
> pic.o pngmem.pic.o pngerror.pic.o pngpread.pic.o
> /usr/bin/ld: warning: sparc:v9 architecture of input file `png.pic.o' is incompa
> tible with sparc output
> 
> if I simply add -m64 above, it works...
> 
> gcc -m64 -shared -Wl,-soname,libpng12.so.0 -lz -lm -o
> libpng12.so.0.1.2.8 png.pic.o pngset.pic.o pngget.pic.o pngrutil.pic.o
> pngtrans.pic.o pngwutil.pic.o pngread.pic.o pngrio.pic.o pngwio.pic.o
> pngwrite.pic.o pngrtran.pic.o pngwtran.pic.o pngmem.pic.o
> pngerror.pic.o pngpread.pic.o
> 
> Now, how should we proceed?
> 
> This is perhaps a simple error in my rpm build setup or my system environment...

Neither. Its a bug in how libpng handles CFLAGS. It ignores CFLAGS for
the link call. Several packages have this issue.

~spot
-- 
Tom "spot" Callaway: Red Hat Senior Sales Engineer || GPG ID: 93054260
Fedora Extras Steering Committee Member (RPM Standards and Practices)
Aurora Linux Project Leader: http://auroralinux.org
Lemurs, llamas, and sparcs, oh my!