* Vincent Lefevre: > Is it normal that -std=c90 -pedantic-errors allows to use > > #include <stdint.h> > > ? Yes. It's difficult where to draw the line. <inttypes.h> was apparently available with some C90 compilers, so it would make sense to allow it in C90 mode. But this means that it wouldn't be completely out of line to accept <stdint.h>, too.