gsm port fails to configure

[David Liontooth]

--->  Fetching gmp
--->  Attempting to fetch gmp-4.2.1.tar.bz2 from http://ftp.gnu.org/gnu/gmp
--->  Verifying checksum(s) for gmp
--->  Extracting gmp
--->  Configuring gmp
Error: Target com.apple.configure returned: can't read
"configure.cflags": no such variable
Error: The following dependencies failed to build: gmp mpfr
Error: Status 1 encountered during processing.