On 29 December 2010 13:09, Dan Track wrote: > On Wed, Dec 29, 2010 at 12:20 PM, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: >> On 29 December 2010 11:11, Dan Track wrote: >>> >>> --with-gmp="/opt/gcc" >>> --with-gmp-include="/opt/gcc/include" >> ... >>> -L/opt/gcc/lib -lmpc -lmpfr -lgmp -rdynamic -ldl -lz >>> >>> /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/bin/ld: >>> cannot find -lgmp >> ... >>> I have gmp installed in >>> /app/gcc/usr/lib. >> >> Use the right --with-gmp option. >> > > Hi, > > Thanks for your suggestion, I made the recommended change and removed > the old config. However I’ve still got the same error, is there > something else required? > > Here’s what I’ve been doing > > cd /opt/mon > tar –xzf gcc-4.5.2.tar.gz > cd gcc-4.5.2 > > then the following commands > > > Configure: > > ./configure --enable-threads=posix --prefix=/opt/gcc The installation instructions strongly recommend NOT configuring in the source tree, but in a separate directory. That allows you to just remove the build directory and start again if you mess up the config or want to change it. The source tree will be untouched e.g. cd /opt/mon tar –xzf gcc-4.5.2.tar.gz mkdir objdir cd objdir ../gcc-4.5.2/configure ... --enable-threads=posix is the default for GNU/Linux, it's not necessary to request it explicitly (but harmless) > --with-local-prefix=/opt/gcc/usr/local > --infodir=/opt/gcc/usr/share/info --mandir=/opt/gcc/usr/share/man > --libdir=/opt/gcc/usr/lib64 --libexecdir=/opt/gcc/usr/lib64 > --enable-languages=c,c++,objc,obj-c++ --enable-checking=release > --with-gxx-include-dir=/opt/gcc/usr/include/c++/4.1.2 --enable-ssp Why are you giving the cxx-include-dir as 4.1.2 for a 4.5.2 installation? > --disable-libssp --disable-libgcj --with-slibdir=/opt/gcc/lib64 > --with-system-zlib --enable-shared --enable-__cxa_atexit > --enable-libstdcxx-allocator=new --program-suffix= > --enable-version-specific-runtime-libs --without-system-libunwind > --with-cpu=generic --host=x86_64-suse-linux --enable-bootstrap > --enable-shared --enable-threads=posix --enable-checking=release > --with-system-zlib --enable-__cxa_atexit Most of these options are redundant > --disable-libunwind-exceptions --enable-gnu-unique-object > --enable-linker-build-id LDFLAGS="-L/opt/gcc/lib -L/opt/gcc/usr/lib > -L/opt/utils/lib -L/opt/utils/usr/lib" > CPPFLAGS="-I/opt/utils/usr/include" --host=x86_64-suse-linux > --target=x86_64-suse-linux --build=x86_64-suse-linux > --with-tune=generic --with-arch_32=i686 --with-gmp="/opt/gcc" I thought you said you have gmp in /app/gcc/usr/lib ? Why are you still using --with-gmp=/opt/gcc ? Are the installed libgmp.so libraries the right architecture for the gcc build you're trying, i.e. 64-bit? > CC=/opt/utils/usr/bin/gcc CXX=/opt/utils/usr/bin/g++ CFLAGS="-g3 -O0 > -I/opt/utils/usr/include" BOOT_LDFLAGS="-L/opt/gcc/lib > -L/opt/gcc/usr/lib -L/opt/utils/lib -L/opt/utils/usr/lib" Do you actually need all these environment variables? I suggest keeping it simple instead of giving dozens of redundant or unnecessary options. You probably only need half those configure options, if that. Set LD_LIBRARY_PATH so libgmp.so can be found at build time: export LD_LIBRARY_PATH=/app/gcc/usr/lib Try a much simpler configure: ./configure --enable-threads=posix --prefix=/opt/gcc --enable-languages=c,c++,objc,obj-c++ --enable-ssp --disable-libssp --disable-libgcj --enable-libstdcxx-allocator=new --without-system-libunwind --with-cpu=generic --host=x86_64-suse-linux --with-system-zlib --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --host=x86_64-suse-linux --target=x86_64-suse-linux --build=x86_64-suse-linux --with-tune=generic --with-arch_32=i686 --with-gmp="/app/gcc/usr" CC=/opt/utils/usr/bin/gcc CXX=/opt/utils/usr/bin/g++ CFLAGS="-g3 -O0" Unless you're really messed your system up, you don't need to set CFLAGS to find headers in /opt/utils/include If you're still struggling, I'd suggest simply downloading my makefile from http://www.kayari.plus.com/gcc/config-gcc.mk then saying "gmake -n -f config-gcc.mk PREFIX=/opt/gcc" The -n flag will cause make to print out all the commands I consider necessary to configure gcc (with C and C++ support) - you should be able to figure out the extra steps needed to include ObjC and add whatever extra configure options you want.