Hello, I ran into a build error when building GNU m4 1.4.16 with the SGI compiler on IRIX 5.3 and 6.2. The problem turned out to be in verror.h from gnulib. It uses the __attribute__ format directive directly instead of the usual _GL_ATTRIBUTE_FORMAT macro.
I don't have the buildlogs available right now, but I can dig'em out if necessary. -tgc
