On Mon, Oct 21, 2013 at 1:34 AM, GHui <ugiwgh@xxxxxxxxx> wrote: > There is some error, when I build gcc-4.8.2. > The build configure: ../configure --build=x86_64-redhat-linux --prefix=/usr/local/gcc-4.8.1 --enable-FEATURE=yes --with-gmp=/usr/local/gmp-4.3.2 --with-mpfr=/usr/local/mpfr-2.4.2 --with-mpc=/usr/local/mpc-0.8.1/ --enable-languages=c,c++ --disable-multilib > > I have google it. There is lack of that error help. Any help will be appreciated. > configure: error: C compiler cannot create executables > See `config.log' for more details. > make[2]: *** [configure-stage1-target-libgomp] Error 77 > configure:3686: /root/JULY/gcc-4.8.1/build/./gcc/xgcc -B/root/JULY/gcc-4.8.1/build/./gcc/ -B/usr/local/gcc-4.8.1/x86_64-unknown-linux-gnu/bin/ -B/usr/local/gcc-4.8.1/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/gcc-4.8.1/x86_64-unknown-linux-gnu/include -isystem /usr/local/gcc-4.8.1/x86_64-unknown-linux-gnu/sys-include -g -O2 conftest.c >&5 > /usr/lib/../lib64/crt1.o: In function `_start': > (.text+0x12): undefined reference to `__libc_csu_fini' > /usr/lib/../lib64/crt1.o: In function `_start': > (.text+0x19): undefined reference to `__libc_csu_init' > collect2: error: ld returned 1 exit status Something is wrong but I don't know what. The file crt1.o is not part of GCC; it is part of your C library. The functions __libc_csu_init and __libc_csu_fini are also part of your C library, not GCC. So for some reason the newly built GCC is able to find crt1.o but failing to find the right C library. Or something. Please try running the above command, in the directory x86_64-unknown-linux-gnu/libgomp, with the -v option. That will show how xgcc is invoking the linker and may suggest what the problem is. Ian
