Something

making all mod_portaudio
 gcc -c -g -O2 -DPA_BIG_ENDIAN -arch i386 -arch ppc -isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.3 -I./include -I./src/common -I./src/os/unix -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DWORDS_BIGENDIAN=1 -DSIZEOF_SHORT=2 -DSIZEOF_INT=4 -DSIZEOF_LONG=4 -DHAVE_NANOSLEEP=1 -DPA_USE_COREAUDIO=1 -DHAVE_LIBKERN_OSATOMIC_H=1 src/common/pa_cpuload.c  -fno-common -DPIC -o src/common/pa_cpuload.o
cc1: error: invalid option 'macosx-version-min=10.3'
cc1: error: invalid option 'macosx-version-min=10.3'
lipo: can't figure out the architecture type of: /var/tmp//ccWylNiN.out
make[6]: *** [src/common/pa_cpuload.lo] Error 1
make[5]: *** [../../../../libs/portaudio/lib/libportaudio.la] Error 2
make[4]: *** [all] Error 1
make[3]: *** [mod_portaudio-all] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

 gcc -c -g -O2 -DPA_BIG_ENDIAN -arch i386 -arch ppc -isysroot /Developer/SDKs/MacOSX10.4u.sdk -I./include -I./src/common -I./src/os/unix -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DWORDS_BIGENDIAN=1 -DSIZEOF_SHORT=2 -DSIZEOF_INT=4 -DSIZEOF_LONG=4 -DHAVE_NANOSLEEP=1 -DPA_USE_COREAUDIO=1 -DHAVE_LIBKERN_OSATOMIC_H=1 src/common/pa_cpuload.c  -fno-common -DPIC -o src/common/pa_cpuload.o
src/common/pa_cpuload.c:55:20: error: assert.h: No such file or directory
src/common/pa_cpuload.c:55:20: error: assert.h: No such file or directory
lipo: can't figure out the architecture type of: /var/tmp//ccZF5Xkv.out
make[6]: *** [src/common/pa_cpuload.lo] Error 1
make[5]: *** [../../../../libs/portaudio/lib/libportaudio.la] Error 2
make[4]: *** [all] Error 1
make[3]: *** [mod_portaudio-all] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2