From 541943ee04ee22101bbbde2386272b1cad635132 Mon Sep 17 00:00:00 2001 From: Akim Demaille Date: Sun, 6 Sep 2020 10:08:22 +0200 Subject: [PATCH] build: fix a concurrent build issue in examples Reported by Thomas Deutschmann . https://lists.gnu.org/r/bug-bison/2020-09/msg00010.html * examples/c/lexcalc/local.mk: scan.o depends on parse.[ch]. --- examples/c/lexcalc/local.mk | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/examples/c/lexcalc/local.mk b/examples/c/lexcalc/local.mk index b73887e2..636275c8 100644 --- a/examples/c/lexcalc/local.mk +++ b/examples/c/lexcalc/local.mk @@ -31,6 +31,13 @@ endif FLEX_WORKS %D%/parse.c: $(dependencies) +# Tell Make scan.o depends on parse.h, except that Make sees only +# parse.c, not parse.h. We can't use BUILT_SOURCES to this end, since +# we use the built bison. +%D%/lexcalc$(DASH)scan.o: %D%/parse.c +# Likewise, but for Automake before 1.16. +%D%/examples_c_lexcalc_lexcalc$(DASH)scan.o: %D%/parse.c + EXTRA_DIST += %D%/lexcalc.test dist_lexcalc_DATA = %D%/parse.y %D%/scan.l %D%/Makefile %D%/README.md CLEANFILES += %D%/parse.[ch] %D%/scan.c %D%/parse.output