https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52952
--- Comment #47 from Bernd Edlinger <bernd.edlinger at hotmail dot de> --- COLUMNS=82 make check-gcc-c RUNTESTFLAGS="cpp.exp=pr66415-1.c" ... Running /home/ed/gnu/gcc-trunk/gcc/testsuite/gcc.dg/cpp/cpp.exp ... === gcc Summary === # of expected passes 3 /home/ed/gnu/gcc-build/gcc/xgcc version 7.0.0 20160819 (experimental) (GCC) COLUMNS=80 make check-gcc-c RUNTESTFLAGS="cpp.exp=pr66415-1.c" ... Running /home/ed/gnu/gcc-trunk/gcc/testsuite/gcc.dg/cpp/cpp.exp ... FAIL: gcc.dg/cpp/pr66415-1.c expected multiline pattern lines 11-12 not found: "\s*__builtin_printf \("xxxxxxxxxxxxxxxxx%dxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"\);.*\n ~\^\n" FAIL: gcc.dg/cpp/pr66415-1.c (test for excess errors) === gcc Summary === # of expected passes 1 # of unexpected failures 2 /home/ed/gnu/gcc-build/gcc/xgcc version 7.0.0 20160819 (experimental) (GCC)