prefix=/root/envs/janus
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
toolexeclibdir=${libdir}
includedir=/root/envs/janus/include

Name: libffi
Description: Library supporting Foreign Function Interfaces
Version: 3.4.4
Libs: -L${toolexeclibdir} -lffi
Cflags: -I${includedir}