%general-entities; ]> GCC cross tools, static Make a couple of essential adjustments to the specs file to ensure GCC uses our build environment: patch -Np1 -i ../&gcc-specs-patch; To make sure that a couple of tools use the proper syntax, apply the following patch: patch -Np1 -i ../&gcc-posix-patch; The following patch ensures that gcc does not search the /usr directory for libgcc_s.so when cross-compiling: patch -Np1 -i ../&gcc-cross_search-patch; Change the StartFile Spec to point to the correct library location: echo " #undef STARTFILE_PREFIX_SPEC #define STARTFILE_PREFIX_SPEC \"/tools/lib/\"" >> gcc/config/linux.h Now alter gcc's c preprocessor's default include search path to use /tools only: cp -v gcc/Makefile.in{,.orig} sed -e "s@\(^CROSS_SYSTEM_HEADER_DIR =\).*@\1 /tools/include@g" \ gcc/Makefile.in.orig > gcc/Makefile.in The above patches and sed's are critical in ensuring a successful overall build. Do not forget to apply them. ../gcc-&gcc-version;/configure --prefix=/cross-tools \ --host=${CLFS_HOST} --target=${CLFS_TARGET} --disable-multilib \ --with-local-prefix=/tools --disable-nls --disable-shared \ --disable-threads --enable-languages=c --with-local-prefix=/tools The purpose of this switch is to remove /usr/local/include from gcc's include search path. This is not absolutely essential, however, it helps to minimize the influence of the host system. --disable-shared Disables the creation of the shared libraries. --disable-threads This will prevent GCC from looking for the multi-thread include files, since they haven't been created for this architecture yet. GCC will be able to find the multi-thread information after the Glibc headers are created. --enable-languages=c This option ensures that only the C compiler is built. Continue with compiling the package: make all-gcc Install the package: make install-gcc