https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81797
--- Comment #7 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> --- Yet another one: In file included from /Users/fx/ibin/x86_64-apple-darwin17.0.0/libstdc++-v3/include/bits/stl_algo.h:62:0, from /Users/fx/ibin/x86_64-apple-darwin17.0.0/libstdc++-v3/include/algorithm:62, from /Users/fx/gcc-7.1.0/libstdc++-v3/include/precompiled/stdc++.h:65: /Users/fx/ibin/x86_64-apple-darwin17.0.0/libstdc++-v3/include/bits/stl_tempbuf.h:60:10: fatal error: bits/stl_construct.h: No such file or directory #include <bits/stl_construct.h> ^~~~~~~~~~~~~~~~~~~~~~ compilation terminated. make[5]: *** [x86_64-apple-darwin17.0.0/bits/stdc++.h.gch/O2g.gch] Error 1 Yet when make aborts, the file x86_64-apple-darwin17.0.0/libstdc++-v3/include/bits/stl_construct.h is present. So I guess it's a race condition somewhere in the Makefile.