On Dec 5, 2013, at 23:10, Geoffrey Odhner wrote: > I just installed MacPorts, and gcc49, and tried to compile a simple program, > which really should work, but I'm getting a link error. I narrowed it down, > and if I take out the use of any regex then it will link. I can leave in the > #include <regex> line, but if I have any line that actually does a > regex_search or a regex_replace, then I get the following error output when I > compile and link (with my compile line shown first): > > g++-mp-4.9 -std=c++11 -ggdb test-program.cxx -o test-program > Undefined symbols for architecture x86_64: > "__istype(int, unsigned long)", referenced from: > std::ctype<char>::is(unsigned long, char) const in test-program.o > ld: symbol(s) not found for architecture x86_64 > collect2: error: ld returned 1 exit status > > Can anyone help me? I don't know what to do next.
I don’t know the answer but I Googled the error message and found this post; does that help? http://stackoverflow.com/questions/19576609/undefined-symbol-istype-in-macports-gcc-c11 I’d also ask if you really need to use gcc. Could you use clang instead? _______________________________________________ macports-users mailing list [email protected] https://lists.macosforge.org/mailman/listinfo/macports-users
