Ryan,
I also tried your suggestion of using clang. I installed the MacPorts port of
clang-3.4, which compiled my program fine, but when I ran it, it gave
exceptions on regexes that it shouldn't! I have a regex std::regex
phone_("\\PHONE ?"), and I learned that their regular expression engine is very
much more particular about adhering to the ECMA standard in its parsing of
regular expressions, but because the standard doesn't explicitly require it,
they don't support matching of backslashes, even when they are specified using
hex escape sequences. This is really a problem! How can they not support
matching against a specific character? Well, that's why I need to go back to
GCC for now. I always seem to run into the issues with compilers. Thanks
again for your help.Regards, Geoff On 6 Dec 2013, at 2:59, Ryan Schmidt wrote: > 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?
signature.asc
Description: OpenPGP digital signature
_______________________________________________ macports-users mailing list [email protected] https://lists.macosforge.org/mailman/listinfo/macports-users
