MFports: Don't recurse infinitely on the stack frame when parsing a
signal frame.
MFports: Disable i386fbsd_resume().
MFports: Include existing LDFLAGS in --libs and --ldflags.
MFports: Handle SIGLIBRT used by librt.
MFports: Disable -Wunused-function since it is noisy.
MFports: Permit tui and insight hardlinks.