"Conflicting types" build failure(s) — clang 3.3

clang considers conflicting declarations as error while gcc just shows a warning
// clang  -c  foo.c
#include <stdio.h>
char *getline(int fd) { return NULL; }
PackageVersionSupposed error messageFull log Bug report
acedb 4.9.39+dfsg.01-5aqlparse.l:219:6: error: conflicting types for 'yyerror' Log
dsbltesters 0.9.5-4httptest.c:41:7: error: conflicting types for 'getline' Log 753431
eegdev 0.2-3conffile.tab.c:1094:1: error: conflicting types for 'cff_parse' Log
gnats 4.1.0-2./gnats.h:140:12: error: conflicting types for 'asprintf' Log
jackeq 0.5.9-2main.c:251:6: error: conflicting types for 'getSettings' Log 753432
mokomaze 0.5.5+git8+dfsg0-3mainwindow.c:705:6: error: conflicting types for 'GoFallFixed' Log 753436
mutt 1.5.21-6.3../compress.c:297:6: error: conflicting types for 'restore_path' Log 753437
pccts 1.33MR33-6genmk.c:971:1: error: conflicting types for 'pclasses' Log 753538
scalasca 1.4.3-1epk_pomp2.c:93:1: error: conflicting types for 'POMP2_Barrier_enter' Log
tnef 1.4.9-1tnef.c:389:6: error: conflicting types for 'free_bodies' Log 753540
xtrkcad 1:4.0.2-2gtkhelp.c:640:6: error: conflicting types for 'load_into_view' Log 753541

11 errors