Hi, I'm having trouble building GCC 4.5.0. I'm building it on a RHEL4 64-bit system so have built several dependencies as well. Below is my configure command: ../src/configure --prefix=/path/gcc-4.5.0 --with-mpc=/path/mpc-0.8.1 --with-mpfr=/path/mpfr-2.4.2 --with-gmp=/path/gmp-4.3.2 --disable-shared Configure completes fine but the build does not using "make -j10": checking for x86_64-unknown-linux-gnu-gcc... /path/x86_64/./gcc/xgcc -B/path/x86_64/./gcc/ -B/path/gcc-4.5.0/x86_64-unknown-linux-gnu/bin/ -B/path /gcc-4.5.0/x86_64-unknown-linux-gnu/lib/ -isystem /path/gcc-4.5.0/x86_64-unknown-linux-gnu/include -isystem /path/gcc-4.5.0/x86_64-unknown-linux- gnu/sys-include checking for suffix of object files... configure: error: in `/path/x86_64/x86_64-unknown-linux-gnu/libgcc': configure: error: cannot compute suffix of object files: cannot compile See `config.log' for more details. make[2]: *** [configure-stage1-target-libgcc] Error 1 make[2]: Leaving directory `/path/x86_64' make[1]: *** [stage1-bubble] Error 2 make[1]: Leaving directory `/path/x86_64' make: *** [all] Error 2 The config.log file looks like this: configure:3004: $? = 0 configure:2993: /path/x86_64/./gcc/xgcc -B/path/x86_64/./gcc/ -B/path/gcc-4.5.0/x86_64-unknown-linux-gnu/bin/ -B/path/gcc-4.5.0/x86_64-unknown-linux-gnu/lib/ -isystem /path/gcc-4.5.0/x86_64-unknown-linux-gnu/include -isystem /path/gcc-4.5.0/x86_64-unknown-linux-gnu/sys-include -V >&5 xgcc: '-V' must come at the start of the command line configure:3004: $? = 1 configure:2993: /path/x86_64/./gcc/xgcc -B/path/x86_64/./gcc/ -B/path/gcc-4.5.0/x86_64-unknown-linux-gnu/bin/ -B/path/gcc-4.5.0/x86_64-unknown-linux-gnu/lib/ -isystem /path/gcc-4.5.0/x86_64-unknown-linux-gnu/include -isystem /path/gcc-4.5.0/x86_64-unknown-linux-gnu/sys-include -qversion >&5 xgcc: unrecognized option '-qversion' xgcc: no input files configure:3004: $? = 1 configure:3020: /path/x86_64/./gcc/xgcc -B/path/x86_64/./gcc/ -B/path/gcc-4.5.0/x86_64-unknown-linux-gnu/bin/ -B/path/gcc-4.5.0/x86_64-unknown-linux-gnu/lib/ -isystem /path/gcc-4.5.0/x86_64-unknown-linux-gnu/include -isystem /path/gcc-4.5.0/x86_64-unknown-linux-gnu/sys-include -o conftest -g -O2 conftest.c >&5 /path/x86_64/./gcc/cc1: error while loading shared libraries: libmpc.so.2: cannot open shared object file: No such file or directory configure:3023: $? = 1 configure:3211: checking for suffix of object files configure:3233: /path/x86_64/./gcc/xgcc -B/path/x86_64/./gcc/ -B/path/gcc-4.5.0/x86_64-unknown-linux-gnu/bin/ -B/path/gcc-4.5.0/x86_64-unknown-linux-gnu/lib/ -isystem /path/gcc-4.5.0/x86_64-unknown-linux-gnu/include -isystem /path/gcc-4.5.0/x86_64-unknown-linux-gnu/sys-include -c -g -O2 conftest.c >&5 /path/x86_64/./gcc/cc1: error while loading shared libraries: libmpc.so.2: cannot open shared object file: No such file or directory configure:3237: $? = 1 configure: failed program was: | /* confdefs.h */ | #define PACKAGE_NAME "GNU C Runtime Library" | #define PACKAGE_TARNAME "libgcc" | #define PACKAGE_VERSION "1.0" | #define PACKAGE_STRING "GNU C Runtime Library 1.0" | #define PACKAGE_BUGREPORT "" | #define PACKAGE_URL "http://www.gnu.org/software/libgcc/"; | /* end confdefs.h. */ | | int | main () | { | | ; | return 0; | } What I don't understand is that libmpc.so.2 is in the provided --with-mpc path yet configure isn't passing it in to the test program. The build passes by the way if I add the lib directories of all those --with arguments to LD_LIBRARY_PATH but then produced executables require the LD_LIBRARY_PATH to continue to be set. I had this problem with GCC 4.4.x but not for earlier versions. Thanks, Uri
