1. Add a -prefix arguement to libtool, to find where the installed
copies of ltconfig and ltmain.sh reside.
2. Don't install the .la files unless --install-ltlibs is passed to
ltconfig.
3. Don't force linking with -lc, and allow -?thread to be passed to
the linker.
4. Don't build static libs if not using version numbers (for
plugins).
5. Install instead of
lib${release}.a lib.a
lib${release}.so lib.so
lib${release}.so.${ver} lib${release}.so.${ver}
to support multi-release installations.
6. Change version to "1.3-freebsd-ports" so people know who to
blame.
7. Misc fixes.
PR: 11839
Submitted by: maintainer
