>>>> I have here an (attached) testcase which unexpectedly turns off >>>> warnings. Compiling it using `gcc test.c -c -Wall` (or test.i) gives: >>>> >>>> test.c: In function 'pam_sm_authenticate': >>>> test.c:6: warning: implicit declaration of function 'undef' >>> This works on the trunk but fails on the 4.3 branch. >> >> gcc 4.1 also produces the expected output (implicit declaration undef2), >> so it seems like a recent regression. > > I guess filling a bug at http://gcc.gnu.org/bugzilla about this > regression would help.
As would adding the reduced testcase to the testsuite for trunk to ensure we don't regress again. :-) Will do so next week if nobody beats me to it. Paolo
