I have successfully build a native compiler on an intel mac pro, using the following configure parameters: --with-sysroot=/Developer/SDKs/MacOS10.4u.sdk --enable-languages=c,c++,objc,obj-c++ --enable-__cxa_atexit (I suspect the --with-sysroot is irrelevant in this case). I am now trying to build the equivalent compiler targetting powerpc macs, with the target given in the subject line of this post: --with-sysroot=/Developer/SDKs/MacOS10.3.9.sdk --enable-languages=c,c++,objc,obj-c++ --enable-__cxa_atexit --target=powerpc-apple-darwin7 The configure step appears to work OK, and the build commences and churns away for a while ..... but then: ... erpc-10.3/powerpc-apple-darwin7/sys-include' \ mkinstalldirs='/bin/sh ../../gcc-4.2.0/gcc/../mkinstalldirs' \ /bin/sh mklibgcc > tmp-libgcc.mk mv tmp-libgcc.mk libgcc.mk TARGET_CPU_DEFAULT="" \ HEADERS="auto-host.h ansidecl.h" DEFINES="USED_FOR_TARGET " \ /bin/sh ../../gcc-4.2.0/gcc/mkconfig.sh tconfig.h /Volumes/Scratch/williamg/Builds/gcc-build-powerpc-10.3/./gcc/xgcc -B/Volumes/Scratch/williamg/Builds/gcc-build-powerpc-10.3/./gcc/ -B/Users/williamg/Tools/gcc-4.2.0-powerpc-10.3/powerpc-apple-darwin7/bin/ -B/Users/williamg/Tools/gcc-4.2.0-powerpc-10.3/powerpc-apple-darwin7/lib/ -isystem /Users/williamg/Tools/gcc-4.2.0-powerpc-10.3/powerpc-apple-darwin7/include -isystem /Users/williamg/Tools/gcc-4.2.0-powerpc-10.3/powerpc-apple-darwin7/sys-include -O2 -g -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -I. -I. -I../../gcc-4.2.0/gcc -I../../gcc-4.2.0/gcc/. -I../../gcc-4.2.0/gcc/../include -I./../intl -I../../gcc-4.2.0/gcc/../libcpp/include -I../../gcc-4.2.0/gcc/../libdecnumber -I../libdecnumber \ -c ../../gcc-4.2.0/gcc/config/darwin-crt2.c -o crt2.o /Volumes/Scratch/williamg/Builds/gcc-build-powerpc-10.3/./gcc/as: line 2: exec: ppc: not found make[2]: *** [crt2.o] Error 1 make[1]: *** [all-gcc] Error 2 make: *** [all] Error 2 I'll post more output from further up if necessary. Can anyone tell me what I am doing wrong here? Thanks, -- Bill Gallafent.