I got In file included from /export/gnu/src/binutils/binutils/gprof/utils.c:29: /export/gnu/src/binutils/binutils/include/demangle.h:527: syntax error before "size_t" /export/gnu/src/binutils/binutils/include/demangle.h:527: warning: function declaration isn't a prototype The new demangle.h uses size_t without including proper header files. H.J.