On Thursday 2009-01-01 03:05, Andrew Pinski wrote: >On Wed, Dec 31, 2008 at 9:02 PM, Jan Engelhardt <jeng...@medozas.de> wrote: >> Hi, >> >> >> 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.