Here's the verbose output on the failing configuration step, inter::progs. First, with my usual settings:
Determining what C compiler and linker to use... ccflags: -fno-common -no-cpp-precomp -pipe -I/usr/local/include -pipe -fno-common -Wno-long-double /usr/bin/gcc-3.3 -fno-common -no-cpp-precomp -pipe -I/usr/local/include -pipe -fno-common -Wno-long-double -I./include -c test.c /usr/bin/g++-3.3 -undefined dynamic_lookup test.o -o test -lm ld: flag: -undefined dynamic_lookup can't be used with MACOSX_DEPLOYMENT_TARGET environment variable set to: 10.1 Compilation failed with '/usr/bin/gcc-3.3' Next, with just 'perl Configure.pl --verbose-step=7 --nomanicheck': Determining what C compiler and linker to use... ccflags: -fno-common -no-cpp-precomp -pipe -I/usr/local/include -pipe -fno-common -Wno-long-double cc -fno-common -no-cpp-precomp -pipe -I/usr/local/include -pipe -fno-common -Wno-long-double -I./include -c test.c c++ -undefined dynamic_lookup test.o -o test -lm /usr/bin/ld: flag: -undefined dynamic_lookup can't be used with MACOSX_DEPLOYMENT_TARGET environment variable set to: 10.1 collect2: ld returned 1 exit status Compilation failed with 'cc'