------- Comment #9 from manu at gcc dot gnu dot org 2007-08-29 16:30 ------- Since "a" is called before being defined/declared is assumed:
extern int a(); See also: http://c-faq.com/decl/implfdecl.html The error message could be a bit clearer by pointing out this explicitly: a.c:7: error: conflicting types for 'a' a.c:7: note: an argument type that has a default promotion can't match an empty parameter name list declaration a.c:3: error: previous implicit declaration 'extern int a()' of 'a' was here But I doubt anyone would be interested to work on a patch for that. Would you? -- manu at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |manu at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33219