prefix=/usr/pkg
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Name: mpfr
URL: https://www.mpfr.org/
Description: C library for multiple-precision floating-point computations
Version: 4.2.1
Libs: -Wl,-R${libdir} -L${libdir} -lmpfr -lgmp
Cflags: -I${includedir}
