mpfr-4.1.0

Reference: 8.20. MPFR-4.1.0. Fix the build system:

patch -Npi -i mpfr-4.1.0-qlnx-20220203.patch

This package builds and installs the common way:

./configure --prefix=/qlnx \
            --enable-thread-safe \
            --disable-static \
            --includedir=/qlnx/inc \
            --docdir=/tmp \
            --infodir=/tmp

make

The testsuite will 4 times fail because of missing symbols. This seems to be related to musl!

Install mpfr:

make install