GMP

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For use on an HLFS system this package needs some extra effort. First get a patch from gentoo hardened: ​http://ftp.riken.go.jp/Linux/gentoo/dev-libs/gmp/files/gmp-4.1.4-noexecstack.patch

patch -Np1 -i ../gmp-4.1.4-noexecstack.patch

Compile the package with:

env CC="gcc -fno-stack-protector -fno-pic -fno-pie -nopie" \
./configure --prefix=/usr --enable-static=no --enable-shared=yes -with-pic &&
make &&
make check

If the test wont give you any messages containing "cannot enable executable stack as shared object requires" you can continue with a make install according the BLFS book.