create our own gcc toolchain for compiling spc-gnu-docker #686
Description
To allow statically linking against libgomp, libstdc++ and so on in -static-pie builds.
Luckily this was super easy to do inside the spc-gnu-docker image itself:
yum install -y wget
wget https://ftp.gwdg.de/pub/misc/gcc/releases/gcc-14.2.0/gcc-14.2.0.tar.gz
tar xzf gcc-14.2.0.tar.gz
cd gcc-14.2.0
./contrib/download_prerequisites
cd ..
mkdir objdir
cd objdir
$PWD/../gcc-14.2.0/configure --prefix=$HOME/GCC-14 --enable-languages=c,c++,go --enable-default-pie --enable-default-ssp --enable-shared --enable-static --enable-threads=posix CFLAGS="-O2 -fPIC -fPIE -g0 -static-libgcc" CXXFLAGS="-O2 -fPIC -fPIE -g0 -static-libgcc -static-libstdc++" --disable-multilib
make -j4
make install