mesa: can't build i386 on Snow Leopard

[ryandesign (Ryan Carsten Schmidt)]

When setting build_arch to i386 on a Snow Leopard machine, mesa still tries to build x86_64, which then fails when it can't link with the 32-bit libX11 and libXext that are installed.

ld: warning: in /32mp/lib/libX11.dylib, file is not of required architecture
ld: warning: in /32mp/lib/libXext.dylib, file is not of required architecture

$ lipo -info /32mp/lib/{libX11,libXext}.dylib 
Non-fat file: /32mp/lib/libX11.dylib is architecture: i386
Non-fat file: /32mp/lib/libXext.dylib is architecture: i386

[srm@…]

I had the same problem here on Snow Leopard. Set build_arch to i386 in macports.conf and it didn't work. I've added the following lines to the Portfile's post_patch section

        reinplace "s:CFLAGS = :CFLAGS = -arch i386:g" ${worksrcpath}/configs/darwin
        reinplace "s:CXXFLAGS = :CXXFLAGS = -arch i386:g" ${worksrcpath}/configs/darwin

        #set correct flags for the AppleBuild
        reinplace "s:GL_CFLAGS=:GL_CFLAGS=-arch i386 :g" ${worksrcpath}/../AppleSGLX-57/Makefile
        reinplace "s:GL_LDFLAGS=:GL_LDFLAGS=-arch i386 :g" ${worksrcpath}/../AppleSGLX-57/Makefile
        reinplace "s:\$\(CC\) tests/glxinfo:\$\(CC\) -arch i386 tests/glxinfo:g" ${worksrcpath}/../AppleSGLX-57/Makefile
        reinplace "s:\$\(CC\) tests/glxgears:\$\(CC\) -arch i386 tests/glxgears:g" ${worksrcpath}/../AppleSGLX-57/Makefile

It works now. Probably due to "use_config no" there's no hope using normal configure._.append and the different build's didn't use the correct C/XXFlags

[srm@…]

Cc Me!

[srm@…]

snip

I've added the following lines to the Portfile's post_patch section

snap

Given that these lines are quite specific to my system (at least to this apple system, see the paths) it is at least a hint for other stressed fellows.

[srm@…]

another line has probably to be changed:

#This is used for building the tests.
#The tests don't require installation.
$(TEST_BUILD_DIR)/libGL.dylib: $(OBJECTS)
        -if ! test -d $(TEST_BUILD_DIR); then $(MKDIR) $(TEST_BUILD_DIR); fi
        $(CC) -O0 -ggdb3 -o $@ -dynamiclib -lXplugin -framework ApplicationServices -framework CoreFoundation -L$(X11_DIR)/lib -lX11 -lXext -W$

add -arch i386 behind $(CC)

[srm@…]

sorry for the mess I'm producing in this worklog, just wanted to mention that it's file ${worksrcpath}/../AppleSGLX-57/Makefile for the snippet above

*out*

[nerdling (Jeremy Lavergne)]

I feel we can always do these changes by simply inserting configure.build_arch if we're doing a non-universal build.

This built for me (on an x86_64) with build_arch set to i386 after completing the aforementioned patches.

[jeremyhu (Jeremy Huddleston Sequoia)]

It builds fine for me on a 32bit SL

[nerdling (Jeremy Lavergne)]

Did you build as i386 on an x86_64 arch?

[jeremyhu (Jeremy Huddleston Sequoia)]

Ah, sorry for the confusion. It works +universal for me, but I'll try your configuration in a bit...

[ryandesign (Ryan Carsten Schmidt)]

Fixed in r61548.

[jeremyhu (Jeremy Huddleston Sequoia)]

Thanks Ryan! I've been swamped.