https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98531
--- Comment #2 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > --- Comment #1 from Nathan Sidwell <nathan at gcc dot gnu.org> --- > +FAIL: g++.dg/modules/xtreme-header-2_a.H module-cmi > (gcm.cache/vol/gcc/src/hg/master/local/gcc/testsuite/g++.dg/modules/xtreme-header-2_a.H.gcm) > > must not use absolute filename here > > But that's the unique key the preprocessor is using to identify the file. Do > you have a suggestion as to how else to identify it? Maybe just the filename relative to $srcdir? We frown upon absolute pathnames in test names because they make it impossible to compare testresults between different systems. Even if the same srcdir were mounted in different places on clients, results would differ.