5.7. Cross GCC-4.1.1 - Static

The GCC package contains the GNU compiler collection, which includes the C and C++ compilers.

5.7.1. Installation of Cross GCC Compiler with Static libgcc and no Threads

Make a couple of essential adjustments to the specs file to ensure GCC uses our build environment:

patch -Np1 -i ../gcc-4.1.1-specs-1.patch

To make sure that a couple of tools use the proper syntax, apply the following patch:

patch -Np1 -i ../gcc-4.1.1-posix-1.patch

The following patch ensures that gcc does not search the /usr directory for libgcc_s.so when cross-compiling:

patch -Np1 -i ../gcc-4.1.1-cross_search_paths-1.patch

Change the StartFile Spec to point to the correct library location:

echo "
#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 GCC documentation recommends building GCC outside of the source directory in a dedicated build directory:

mkdir -v ../gcc-build
cd ../gcc-build

Prepare GCC for compilation:

../gcc-4.1.1/configure --prefix=/cross-tools \
    --host=${CLFS_HOST} --target=${CLFS_TARGET} \
    --with-local-prefix=/tools --disable-nls --disable-shared \
    --disable-threads --enable-languages=c

The meaning of the configure options:


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.


Disables the creation of the shared libraries.


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.


This option ensures that only the C compiler is built.

Continue with compiling the package:

make all-gcc

Install the package:

make install-gcc

Details on this package are located in Section 10.11.2, “Contents of GCC.”