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Diffstat (limited to '')
| -rw-r--r-- | t/buildsystems/parallel.mk | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/t/buildsystems/parallel.mk b/t/buildsystems/parallel.mk new file mode 100644 index 0000000..3e0d201 --- /dev/null +++ b/t/buildsystems/parallel.mk @@ -0,0 +1,21 @@ +all: FIRST SECOND + +TMPFILE ?= $(CURDIR)/parallel.mk.lock + +rmtmpfile: + @rm -f "$(TMPFILE)" + +FIRST: rmtmpfile + @c=0; \ + while [ $$c -le 5 ] && \ + ([ ! -e "$(TMPFILE)" ] || [ "`cat "$(TMPFILE)"`" != "SECOND" ]); do \ + c=$$(($$c+1)); \ + sleep 0.1; \ + done; \ + rm -f "$(TMPFILE)"; \ + if [ $$c -gt 5 ]; then exit 10; else exit 0; fi + +SECOND: rmtmpfile + @echo $@ > "$(TMPFILE)" + +.PHONY: all FIRST SECOND rmtmpfile |