https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119975
--- Comment #4 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > --- Comment #3 from Robert Dubner <rdubner at gcc dot gnu.org> --- > Rainer, I have no way of testing a build on a Mac. > > So, please, at your convenience, see if I eliminated this particular problem, > and let me know. Unfortunately not: when I tried a bootstrap on x86_64-apple-darwin15.6.0 last night, it still failed due to another unguarded use of clock_gettime: /vol/gcc/src/hg/master/darwin/gcc/cobol/util.cc: In constructor 'cbl_timespec::cbl_timespec()': /vol/gcc/src/hg/master/darwin/gcc/cobol/util.cc:2148:19: error: 'CLOCK_MONOTONIC' was not declared in this scope 2148 | clock_gettime(CLOCK_MONOTONIC, &now); | ^~~~~~~~~~~~~~~ /vol/gcc/src/hg/master/darwin/gcc/cobol/util.cc:2148:5: error: 'clock_gettime' was not declared in this scope 2148 | clock_gettime(CLOCK_MONOTONIC, &now); | ^~~~~~~~~~~~~