Using grep 3.7 (as well as master), I'm seeing undefined symbol errors after pointing the build to use a local installation of libsigsegv (version 2.13).
Making all in src CCLD grep Undefined symbols: "_stackoverflow_install_handler", referenced from: _c_stack_action in libgreputils.a(c-stack.o) "_sigsegv_install_handler", referenced from: _c_stack_action in libgreputils.a(c-stack.o) ld: symbol(s) not found Configure appears to find the library (which is provided by MacPorts) correctly. The config.log contains: LIBSIGSEGV='-L/opt/local/lib -lsigsegv' Compiler powerpc-apple-darwin8-gcc-apple-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3) (MacPorts apple-gcc42 5666.3_16) System 8.11.0 Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC Power Macintosh powerpc It's an older system but seems close to building the program. Let me know what additional information would be useful for debugging. Evan