I know I'm doing something stupid, but I don't know what: I am trying to cross-compile binutils/gcc/glibc, HOST=i686-linux-gnu, TARGET=arm-linux-gnueabi, so that I can build for an embedded system running Debian on an OMAP3 using my x86 workstation. I can complete the build of binutils, the first pass of GCC, and glibc with no errors (as far as I can see). However, when I then start the second pass GCC build (so that it can use the generated glibc and compile target apps), I get an error at the end of the build: ---- /bin/sh /USER/src/arm-linux-gnueabi/gcc-4.3.2/libgcc/../mkinstalldirs . /USER/src/arm-linux-gnueabi/build/gcc/build/glibc/./gcc/xgcc -B/USER/src/arm-linux-gnueabi/build/gcc/build/glibc/./gcc/ -B/USER/tools/i686-linux-gnu//arm-linux-gnueabi/bin/ -B/USER/tools/i686-linux-gnu//arm-linux-gnueabi/lib/ -isystem /USER/tools/i686-linux-gnu//arm-linux-gnueabi/include -isystem /USER/tools/i686-linux-gnu//arm-linux-gnueabi/sys-include -O2 -O2 -g -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -shared -nodefaultlibs -Wl,--soname=libgcc_s.so.1 -Wl,--version-script=libgcc.map -o ./libgcc_s.so.1.tmp -O2 -g -g -O2 -B./ _udivsi3_s.o _divsi3_s.o _umodsi3_s.o _modsi3_s.o _bb_init_func_s.o _call_via_rX_s.o _interwork_call_via_rX_s.o _lshrdi3_s.o _ashrdi3_s.o _ashldi3_s.o _negdf2_s.o _addsubdf3_s.o _muldivdf3_s.o _cmpdf2_s.o _unorddf2_s.o _fixdfsi_s.o _fixunsdfsi_s.o _truncdfsf2_s.o _negsf2_s.o _addsubsf3_s.o _muldivsf3_s.o _cmpsf2_s.o _unordsf2_s.o _fixsfsi_s.o _fixunssfsi_s.o _floatdidf_s.o _floatdisf_s.o _floatundidf_s.o _floatundisf_s.o _aeabi_lcmp_s.o _aeabi_ulcmp_s.o _aeabi_ldivmod_s.o _aeabi_uldivmod_s.o _dvmd_lnx_s.o _muldi3_s.o _negdi2_s.o _cmpdi2_s.o _ucmpdi2_s.o _clear_cache_s.o _enable_execute_stack_s.o _trampoline_s.o __main_s.o _absvsi2_s.o _absvdi2_s.o _addvsi3_s.o _addvdi3_s.o _subvsi3_s.o _subvdi3_s.o _mulvsi3_s.o _mulvdi3_s.o _negvsi2_s.o _negvdi2_s.o _ctors_s.o _ffssi2_s.o _ffsdi2_s.o _clz_s.o _clzsi2_s.o _clzdi2_s.o _ctzsi2_s.o _ctzdi2_s.o _popcount_tab_s.o _popcountsi2_s.o _popcountdi2_s.o _paritysi2_s.o _paritydi2_s.o _powisf2_s.o _powidf2_s.o _powixf2_s.o _powitf2_s.o _mulsc3_s.o _muldc3_s.o _mulxc3_s.o _multc3_s.o _divsc3_s.o _divdc3_s.o _divxc3_s.o _divtc3_s.o _bswapsi2_s.o _bswapdi2_s.o _fixunsxfsi_s.o _fixsfdi_s.o _fixdfdi_s.o _fixxfdi_s.o _fixtfdi_s.o _fixunssfdi_s.o _fixunsdfdi_s.o _fixunsxfdi_s.o _fixunstfdi_s.o _floatdixf_s.o _floatditf_s.o _floatundixf_s.o _floatunditf_s.o _divdi3_s.o _moddi3_s.o _udivdi3_s.o _umoddi3_s.o _udiv_w_sdiv_s.o _udivmoddi4_s.o bpabi_s.o unaligned-funcs_s.o unwind-arm_s.o libunwind_s.o pr-support_s.o unwind-c_s.o emutls_s.o -lc && rm -f ./libgcc_s.so && if [ -f ./libgcc_s.so.1 ]; then mv -f ./libgcc_s.so.1 ./libgcc_s.so.1.backup; else true; fi && mv ./libgcc_s.so.1.tmp ./libgcc_s.so.1 && ln -s libgcc_s.so.1 ./libgcc_s.so /USER/tools/i686-linux-gnu//arm-linux-gnueabi/bin/ld: /USER/tools/i686-linux-gnu//arm-linux-gnueabi/lib/crti.o: Relocations in generic ELF (EM: 3) /USER/tools/i686-linux-gnu//arm-linux-gnueabi/bin/ld: /USER/tools/i686-linux-gnu//arm-linux-gnueabi/lib/crti.o: Relocations in generic ELF (EM: 3) /USER/tools/i686-linux-gnu//arm-linux-gnueabi/bin/ld: /USER/tools/i686-linux-gnu//arm-linux-gnueabi/lib/crti.o: Relocations in generic ELF (EM: 3) /USER/tools/i686-linux-gnu//arm-linux-gnueabi/bin/ld: /USER/tools/i686-linux-gnu//arm-linux-gnueabi/lib/crti.o: Relocations in generic ELF (EM: 3) /USER/tools/i686-linux-gnu//arm-linux-gnueabi/bin/ld: /USER/tools/i686-linux-gnu//arm-linux-gnueabi/lib/crti.o: Relocations in generic ELF (EM: 3) /USER/tools/i686-linux-gnu//arm-linux-gnueabi/bin/ld: /USER/tools/i686-linux-gnu//arm-linux-gnueabi/lib/crti.o: Relocations in generic ELF (EM: 3) /USER/tools/i686-linux-gnu//arm-linux-gnueabi/lib/crti.o: could not read symbols: File in wrong format collect2: ld returned 1 exit status make[2]: *** [libgcc_s.so] Error 1 make[2]: Leaving directory `/space/src/arm-linux-gnueabi/build/gcc/build/glibc/arm-linux-gnueabi/libgcc' make[1]: *** [all-target-libgcc] Error 2 make[1]: Leaving directory `/space/src/arm-linux-gnueabi/build/gcc/build/glibc' make: *** [all] Error 2 ---- The offending file is an x86 library: file /USER/tools/i686-linux-gnu//arm-linux-gnueabi/lib/crti.o /USER/tools/i686-linux-gnu//arm-linux-gnueabi/lib/crti.o: ELF 32-bit LSB relocatable, Intel 80386, version 1 (SYSV), not stripped It seems that GCC is placing a host library (x86 ELF) into the target library directory, then attempts to link against them for the target. I *know* it has to be something stupid - some command line parameter I am getting wrong - but for the life of me I've not found anything online which gives me a clue what I am doing wrong. I am using the following commands to do the build: -------------- export PREFIX=/USER/tools/i686-linux-gnu/ export TARGET=arm-linux-gnueabi export BASE_DIR=/space/src/arm-linux-gnueabi cd $BASE_DIR GCC=gcc-4.3.2 BINUTILS=binutils-2.19 GLIBC=glibc-2.7 HOST=i686-linux-gnu rm -rf build mkdir -p build/binutils cd build/binutils ${BASE_DIR}/${BINUTILS}/configure --target=${TARGET} --host=${HOST} --prefix=${PREFIX} --disable-nls make all install || exit 1 export PATH=${PREFIX}/bin:${PATH} cd $BASE_DIR mkdir -p build/gcc cd build/gcc ${BASE_DIR}/${GCC}/configure \ --target=${TARGET} --host=${HOST} --prefix=${PREFIX} \ --with-gnu-as --with-gnu-ld \ --disable-multilib --disable-nls \ --enable-threads=no \ --enable-symvers=gnu --enable-__cxa_atexit \ --disable-shared --enable-languages=c || exit 1 make all-gcc install-gcc || exit 1 mkdir -p build/glibc cd build/glibc ${BASE_DIR}/${GLIBC}/configure \ --target=${TARGET} --host=i686-linux-gnu --prefix=${ROOTDIR_PREFIX} || exit 2 make all install || exit 3 cd build/gcc ${BASE_DIR}/${GCC}/configure \ --target=${TARGET} --host=${HOST} --build=${HOST} --prefix=${PREFIX} \ --with-gnu-as --with-gnu-ld \ --disable-nls --enable-threads=posix \ --enable-symvers=gnu --enable-__cxa_atexit --disable-multilib \ --enable-languages=c,c++ || exit 3 make all install || exit 4 export ROOTDIR_PREFIX=${PREFIX}/${TARGET} export BUILD_PREFIX=/USER/src/arm-linux-gnueabi/build -------------- OK, so, what stupid thing am I missing?