Noen targets krever "--disable-multilib" til gcc. Eksempler er s390x-linux-gnu, x86_64-*-linux-gnu, aarch64-linux-gnu.

Flere metoder, denne er uten sysroot.
hvis du bruker sysroot så kan ikke sysroot være ${PREFIX}/${TARGET} - bruk heller ${PREFIX}/${TARGET}/sysroot eller tilsvarende
(gcc feiler - ld finner ikke bibliotekene sine selv om de ligger der den leter)


export TARGET=arm-linux-gnueabihf
export KERNEL_ARCH=arm

export TARGET=s390x-linux-gnu
export KERNEL_ARCH=s390

export PATH=/opt/cross/bin:$PATH

mkdir /tmp/binutils-obj.${TARGET}
cd /tmp/binutils-obj.${TARGET}
${HOME}/binutils-*/configure --prefix=/opt/cross --target=${TARGET} && \
make -j$(nproc) && make install-strip -j4

mkdir /tmp/gcc-obj.${TARGET}
cd /tmp/gcc-obj.${TARGET}
${HOME}/gcc-*/configure --prefix=/opt/cross --libexecdir=/opt/cross/lib --target=${TARGET} --enable-languages=c,c++ --disable-multilib && \
make all-gcc -j$(nproc) && make install-strip-gcc -j4

cd ~/linux*/ && \
make ARCH=${KERNEL_ARCH} O=/tmp/kernel.build INSTALL_HDR_PATH=/opt/cross/${TARGET} headers_install && \
find /opt/cross/${TARGET}/include  \( -name '.install' -o -name '..install.cmd' \) -delete

mkdir /tmp/glibc.${TARGET}
cd /tmp/glibc.${TARGET}
echo "build-programs=no" >> configparms && \
~/glibc*/configure --prefix=/opt/cross/${TARGET} --host=${TARGET} CFLAGS="-O2 -pipe" && \
make install-headers  && \
touch /opt/cross/${TARGET}/include/gnu/stubs.h && \
make csu/subdir_lib -j$(nproc) && \
cp csu/crt1.o csu/crti.o csu/crtn.o /opt/cross/${TARGET}/lib && \
${TARGET}-gcc -nostdlib -nostartfiles -shared -x c /dev/null -o /opt/cross/${TARGET}/lib/libc.so

cd /tmp/gcc-obj.${TARGET}
make all-target-libgcc -j$(nproc) && make install-strip-target-libgcc -j4

cd /tmp/glibc.${TARGET} && \
make -j$(nproc) && make install DESTDIR=$(pwd)/dest -j4 && \
cp -a dest/opt/cross/${TARGET}/{lib,include} /opt/cross/${TARGET}

cd /tmp/gcc-obj.${TARGET}
rm -rf ${TARGET} #vi vil kjøre libgcc sitt configure script på nytt
make -j$(nproc) && make install-strip

#cleanup
rm -rf /opt/cross/lib/libcc* /opt/cross/{include,share}
find /opt/cross \( -name '*.la' -o -name '*.py' -o -name '*.spec' \) -delete

find /opt/cross/${TARGET}/lib* | xargs file | grep 'shared\ object\|executable' | cut -f 1 -d : | xargs ${TARGET}-strip --strip-all
find /opt/cross/${TARGET} \( -name '*.a' -o -name '*.o' \) | xargs ${TARGET}-strip --strip-unneeded
find /opt/cross/lib/gcc/${TARGET} \( -name '*.a' -o -name '*.o' \) | xargs ${TARGET}-strip --strip-unneeded

mkdir /tmp/glibc.${TARGET}.final
cd /tmp/glibc.${TARGET}.final
echo "build-programs=no" > configparms && \
~/glibc*/configure --prefix=/opt/cross/${TARGET} --host=${TARGET} CFLAGS="-O3 -pipe" && \
make -j$(nproc) -l$(nproc) && make install DESTDIR=$(pwd)/dest -j4 && \
cp -a dest/opt/cross/${TARGET}/{lib,include} /opt/cross/${TARGET}

mkdir /tmp/gcc-obj.${TARGET}.final
cd /tmp/gcc-obj.${TARGET}.final
${HOME}/gcc-*/configure --prefix=/opt/cross --libexecdir=/opt/cross/lib --target=${TARGET} --enable-languages=c,c++ --disable-multilib && \
make -j$(nproc) && make install-strip



#Canadian
export HOST=s390x-linux-gnu
export TARGET=arm-linux-gnueabihf
export KERNEL_ARCH=arm

mkdir /tmp/binutils-obj.canadian.${HOST}.to.${TARGET}
cd /tmp/binutils-obj.canadian.${HOST}.to.${TARGET}
${HOME}/binutils-*/configure --prefix=/opt/cross-tools --host=${HOST} --target=${TARGET}
make -j$(nproc) && make install-strip DESTDIR=/tmp/canadian -j4

mkdir /tmp/gcc-obj.canadian.${HOST}.to.${TARGET}
cd /tmp/gcc-obj.canadian.${HOST}.to.${TARGET}
${HOME}/gcc-*/configure --prefix=/opt/cross-tools --host=${HOST} --target=${TARGET} --libexecdir=/opt/cross-tools/lib --enable-languages=c,c++
make -j$(nproc) && make install-strip DESTDIR=/tmp/canadian -j4

cd ~/linux*/ && \
make ARCH=${KERNEL_ARCH} O=/tmp/kernel.build INSTALL_HDR_PATH=/tmp/canadian/opt/cross-tools/${TARGET} headers_install && \
find /tmp/canadian/opt/cross-tools/${TARGET}  \( -name '.install' -o -name '..install.cmd' \) -delete

mkdir /tmp/glibc.canadian.${TARGET}
cd /tmp/glibc.canadian.${TARGET}
echo "build-programs=no" > configparms && \
~/glibc*/configure --prefix=/opt/cross-tools/${TARGET} --host=${TARGET} CFLAGS="-O3 -pipe" && \
make -j$(nproc) -l$(nproc) && make install DESTDIR=$(pwd)/dest -j4 && \
cp -a dest/opt/cross-tools/${TARGET}/{lib,include} /tmp/canadian/opt/cross-tools/${TARGET}

## END CANADIAN

mkdir /tmp/binutils-obj.crossed.${TARGET}
cd /tmp/binutils-obj.crossed.${TARGET}
${HOME}/binutils-*/configure --prefix=/tmp/crossed/local --host=${TARGET} --target=${TARGET}
make -j$(nproc) tooldir=/tmp/crossed/local && make install-strip tooldir=/tmp/crossed/local  -j4

mkdir /tmp/gcc-obj.crossed.${TARGET}
cd /tmp/gcc-obj.crossed.${TARGET}
${HOME}/gcc-*/configure --prefix=/opt/local --libexecdir=/opt/local/lib --host=${TARGET} --target=${TARGET} --enable-languages=c,c++ && \
make -j$(nproc) && make install-strip DESTDIR=/tmp/crossed -j4