https://bugs.kde.org/show_bug.cgi?id=490651
--- Comment #7 from Sam James <s...@gentoo.org> --- The reproduction instructions you used seem mixed. If you compile with `make` (implicit -j1), then it's essentially the same, as GCC won't parallelise. If you run with `make -jN`, then GCC will automatically use the jobserver make created and consume slots for LTO parallelisation (https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-flto): > You can also specify -flto=jobserver to use GNU make’s job server mode to > determine the number of parallel jobs. This is useful when the Makefile > calling GCC is already executing in parallel. You must prepend a ‘+’ to the > command recipe in the parent Makefile for this to work. This option likely > only works if MAKE is GNU make. Even without the option value, GCC tries to > automatically detect a running GNU make’s job server. I suspect this explains the discrepancy. -- You are receiving this mail because: You are watching all bug changes.
