unset CC CFLAGS CXX CXXFLAGS
cd $LFS/sources
rm -rf gcc-15.2.0 && tar xf gcc-15.2.0.tar.xz && cd gcc-15.2.0
mkdir -v build && cd build
../libstdc++-v3/configure \
--host=$LFS_TGT \
--build=$(../config.guess) \
--prefix=/usr \
--disable-multilib \
--disable-nls \
--disable-libstdcxx-pch \
--with-gxx-include-dir=/tools/$LFS_TGT/include/c++/15.2.0
make
make DESTDIR=$LFS install
rm -v $LFS/usr/lib/lib{stdc++{,exp,fs},supc++}.la