From fa4a9fd729a57a314f0aa10897216ce3b60ec653 Mon Sep 17 00:00:00 2001 From: Christoph Junghans Date: Mon, 10 Feb 2014 22:38:22 -0700 Subject: [PATCH] fixed parallel build --- makefile | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/makefile b/makefile index ae80e4d..b3c8f9d 100644 --- a/makefile +++ b/makefile @@ -54,10 +54,15 @@ a.out: ytab.o $(OFILES) $(OFILES): awk.h ytab.h proto.h -ytab.c: awk.h proto.h awkgram.y +#Clear dependency for parallel build: (make -j) +#YACC generated y.tab.c and y.tab.h at the same time +#this needs to be a static pattern rules otherwise multiple target +#are mapped onto multiple executions of yacc, which overwrite +#each others outputs. +y%.c y%.h: awk.h proto.h awkgram.y $(YACC) $(YFLAGS) awkgram.y - mv y.tab.c ytab.c - mv y.tab.h ytab.h + mv y.$*.c y$*.c + mv y.$*.h y$*.h ytab.h: ytab.c -- 2.19.2