Hi Ian, Thanks for your reply. You're right I haven't built the required libraries using --disable-shared, but I did attempt to build gcc by passing the library location as arguments. A search for the word error in config.log finds the following: configure:3028: /Users/anna/Documents/programs/GCC/GCC/build/./gcc/xgcc -B/Users/anna/Documents/programs/GCC/GCC/build/./gcc/ -B/Users/anna/Documents/programs/GCC/GCC/install/i386-apple-darwin10.7.0/bin / -B/Users/anna/Documents/programs/GCC/GCC/install/i386-apple-darwin10.7.0/lib / -isystem /Users/anna/Documents/programs/GCC/GCC/install/i386-apple-darwin10.7.0/inclu de -isystem /Users/anna/Documents/programs/GCC/GCC/install/i386-apple-darwin10.7.0/sys-i nclude -m64 -V >&5 xgcc: error: unrecognized option '-V' xgcc: fatal error: no input files compilation terminated. ... configure:3166: checking whether the C compiler works configure:3175: ./a.out ../../../../gcc-4.6-20110408/libgcc/configure: line 3177: ./a.out: Bad CPU type in executable configure:3179: $? = 126 configure:3186: error: in `/Users/anna/Documents/programs/GCC/GCC/build/i386-apple-darwin10.7.0/x86_64 /libgcc': configure:3190: error: cannot run C compiled programs. If you meant to cross compile, use `--host'. See `config.log' for more details. Regards, Anna. On 17/04/11 17/04/11 3:12 AM, "Ian Lance Taylor" <iant@xxxxxxxxxx> wrote: > Anna Ceguerra <anna.ceguerra@xxxxxxxxxxxxx> writes: > >> I am trying to compile gcc-4.6-2010408, and I get the following error: >> >> checking whether the C compiler works... configure: error: in >> `/Users/anna/Documents/programs/GCC/GCC/build/i386-apple-darwin10.7.0/x86_64 >> /libgcc': >> configure: error: cannot run C compiled programs. >> >> >> I am on Mac OS X 10.6.7, Intel Core Duo (NOT core 2 duo), and I have >> successfully built gmp-5.0.1, mpc-0.8.2 and mpfr-3.0.1. I used the following >> configure command: >> >> export GCC_LIBS_DIR=/Users/anna/Documents/programs/GCC/GCC/libs/install >> ../gcc-4.6-20110408/configure --prefix=$(cd ../install/ && pwd) >> --with-gmp=$GCC_LIBS_DIR --with-mpfr=$GCC_LIBS_DIR --with-mpc=$GCC_LIBS_DIR >> --disable-checking --enable-werror --enable-languages=c >> --disable-libquadmath >> >> If you need further details please let me know. > > You need to look at i386-apple-darwin10.7.0/x86_64/libgcc/config.log. > That should show the reason why you got that error. There's usually a > lot of information in there; look for the above error message. It > should show the program that it tried to compile and the error message > it got when it failed. > > A pretty common cause for this is that you built gmp, mpc, and mpfr > without using --disable-shared, and you haven't told the dynamic linker > where to find the shared libraries. > > Ian
