libsdl @1.2.15_3 is not building universal

[kenneth.f.cunningham@…]

I don't seem to be able to get libSDL to build as universal (required as i386 for another port I'm working on).

$ sudo port -v install libsdl @1.2.15_3 +universal +x11

$ otool -vh /opt/local/lib/libSDL.a
Archive : /opt/local/lib/libSDL.a
/opt/local/lib/libSDL.a(SDL.o):
Mach header
      magic cputype cpusubtype  caps    filetype ncmds sizeofcmds      flags
MH_MAGIC_64  X86_64        ALL  0x00      OBJECT     4        672 SUBSECTIONS_VIA_SYMBOLS
/opt/local/lib/libSDL.a(SDL_error.o):

I tried unsetting the build_arch in my macports.conf but that made no difference.

I did get libSDL to build with only i386 architecture by manually setting build_arch in macports.conf to i386

cxx_stdlib         		libc++
buildfromsource    		always
delete_la_files    		yes
default_compilers               macports-clang-3.7 macports-clang-3.4 macports-clang-3.3 gcc-4.2 apple-gcc-4.2 gcc-4.0
#build_arch          	        x86_64
build_arch	                i386

and building libSDL

$ sudo port -v install libsdl @1.2.15_3+x11

$ otool -vh /opt/local/lib/libSDL.a
Archive : /opt/local/lib/libSDL.a
/opt/local/lib/libSDL.a(SDL.o):
Mach header
      magic cputype cpusubtype  caps    filetype ncmds sizeofcmds      flags
   MH_MAGIC    I386        ALL  0x00      OBJECT     4        448 SUBSECTIONS_VIA_SYMBOLS
/opt/local/lib/libSDL.a(SDL_error.o):

I'm on this on a 10.6 machine, upgraded to libc++. Original attempted +universal build log attached.

[kenneth.f.cunningham@…]

libsdl build log

[jmroot (Joshua Root)]

Try this instead:

lipo -info /opt/local/lib/libSDL.a

[larryv (Lawrence Velázquez)]

Or this:

$ otool -arch all -hv /opt/local/lib/libSDL.a

By default, otool only shows the slice for the host architecture—unless the file doesn’t contain it, in which case it shows all the slices.

[larryv (Lawrence Velázquez)]

Replying to kenneth.f.cunningham@…:

I did get libSDL to build with only i386 architecture by manually setting build_arch in macports.conf to i386

cxx_stdlib         		libc++
buildfromsource    		always
delete_la_files    		yes
default_compilers               macports-clang-3.7 macports-clang-3.4 macports-clang-3.3 gcc-4.2 apple-gcc-4.2 gcc-4.0
#build_arch          	        x86_64
build_arch	                i386

Please don’t do this. You can set the build architecture on a per-build basis instead:

$ sudo port install whatever build_arch=i386

[kenneth.f.cunningham@…]

Oh crap - sorry for the dumb ticket. libSDL is indeed building universal -- and why wouldn't it be, after all these years?

I thought I had figured out why my port wasn't properly linking against the i386 libSDL, but clearly it is something else causing it to fail. I'll work on that some more.

And I'll try to improve the signal to noise ratio if I can.