This is a repost from perl firebird from David

Ștefan Suciu has been working on a patch for [Sqitch] that adds Firebird support.

https://plus.google.com/b/111558763769231855886/+%C8%98tefanSuciu/posts/PmUzjgYhFfa

 He’s about done, so I wanted to test it. I installed FirebirdSS-2.5.2-26540-0-x86_64 on my Mac (10.9 “Mavericks”) and tried to build DBD::Firebird. Alas, it can’t find the framework:

      Running Mkbootstrap for DBD::Firebird ()

      chmod 644 Firebird.bs

      rm -f blib/arch/auto/DBD/Firebird/Firebird.bundle

      env MACOSX_DEPLOYMENT_TARGET=10.3 cc  -bundle -undefined dynamic_lookup -L/usr/local/lib -fstack-protector -framework Firebird  Firebird.o dbdimp.o  -o blib/arch/auto/DBD/Firebird/Firebird.bundle       \

                \

      ld: framework not found Firebird

      clang: error: linker command failed with exit code 1 (use -v to see invocation)

      make: *** [blib/arch/auto/DBD/Firebird/Firebird.bundle] Error 1

https://gist.github.com/stefansbv/7511547