Only libcompat.a is installed.
As a result it can't be used in shared libraries:
> /usr/local/bin/ld: /usr/lib/libcompat.a(ftime.o): relocation R_X86_64_PC32 against symbol `__stack_chk_guard@@FBSD_1.0' can not be used when making a shared object; recompile with -fPIC
There is no easy solution when the ftime(3) is used from a shared library.
Problem found in science/siconos which has a missing symbol ftime(3) in libsicanos_external.so and adding -lcompat causes the above error.