http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52764
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-03-29 10:25:22 UTC --- Joseph, I was just about to file a glibc bug, let me know if you want that done. Glibc's stdint.h (and GCC's stdint-gcc.h) must unconditionally define the macros for C++11. It's debatable whether they should be defined for C++03. The __STDC_xxx_MACROS macros make sense there to avoid macro pollution, but arguably no strict C++03 program will include <stdint.h> anyway, so defining them unconditionally would also be reasonable, and consistent with C++11. GCC also needs to workaround the problem for "older" (i.e. all existing) glibc versions.