+++ This bug was initially created as a clone of Bug #678867 +++ VPATH makes us slow :-/

Comment on attachment 554356 [details] [diff] [review] Eradicate VPATH abuse from js/src. Review of attachment 554356 [details] [diff] [review]: ----------------------------------------------------------------- ::: js/src/Makefile.in @@ +731,5 @@ > + $(MKDIR) -p yarr > + $(MKDIR) -p assembler > + $(MKDIR) -p assembler/wtf > + $(MKDIR) -p assembler/jit > + $(MKDIR) -p assembler/assembler Can we just stick these all in a variable somewhere and do $(MKDIR) -p $(SOMEDIRS)? (For bonus points, you could probably use $(dir $(CPPSRCS)) and derive this automatically from the sources...) http://www.gnu.org/software/make/manual/make.html#File-Name-Functions

The only remaining VPATH under js/src is in the third-party libffi, so we can close this bug. VPATH has been removed as part of bug 912099 and bug 875013.