[Yhc] still not building on FreeBSD

[David Frech]

latest error:


gcc -o inst/bin/yhi src/runtime/BCKernel/process.o
src/runtime/BCKernel/external.o src/runtime/BCKernel/hashtable.o
src/runtime/BCKernel/heap.o src/runtime/BCKernel/hsffi.o
src/runtime/BCKernel/info.o src/runtime/BCKernel/integer.o
src/runtime/BCKernel/iofuncs.o src/runtime/BCKernel/jonkers.o
src/runtime/BCKernel/main.o src/runtime/BCKernel/make.o
src/runtime/BCKernel/mark.o src/runtime/BCKernel/module.o
src/runtime/BCKernel/mutator.o src/runtime/BCKernel/primitive.o
src/runtime/BCKernel/pretty.o src/runtime/BCKernel/sanity.o
src/runtime/BCKernel/stopcopy.o src/runtime/BCKernel/profile.o
src/runtime/BCKernel/foreign.o src/runtime/BCKernel/thread.o
src/runtime/BCKernel/stable.o src/runtime/BCKernel/builtin/Array.o
src/runtime/BCKernel/builtin/FFI.o src/runtime/BCKernel/builtin/IO.o
src/runtime/BCKernel/builtin/Prelude.o
src/runtime/BCKernel/builtin/Concurrent.o
src/runtime/BCKernel/builtin/PackedString.o
src/runtime/BCKernel/builtin/RuntimeAPI.o
src/runtime/BCKernel/builtin/System.o
depends/ctypes/libffi/src/prep_cif.o
depends/ctypes/libffi/src/cfield.o depends/ctypes/libffi/src/x86/ffi.o
depends/ctypes/libffi/src/x86/sysv.o -L/usr/local/lib -lgmp -ldl -lm
-lpthread
/usr/bin/ld: cannot find -ldl
scons: *** [inst/bin/yhi] Error 1
scons: building terminated because of errors.

The issue, I think, is that, unlike on Linux, the dl* functions are in
libc, not libdl.

- David

-- 
The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all
progress depends on the unreasonable man. -- George Bernard Shaw