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| author | Kaz Kylheku <kaz@kylheku.com> | 2021-04-08 17:42:30 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2021-04-08 17:42:30 -0700 |
| commit | f5fddd6325ee30b4910a7e640b56feabab3d011d (patch) | |
| tree | a43e8fe7bbba0862afaed135d5d5c60267991644 | |
| parent | 8f11158ff4862ef77ef12bbf8f92095368b57f41 (diff) | |
| download | txr-f5fddd6325ee30b4910a7e640b56feabab3d011d.tar.gz txr-f5fddd6325ee30b4910a7e640b56feabab3d011d.tar.bz2 txr-f5fddd6325ee30b4910a7e640b56feabab3d011d.zip | |
build: calm restless yacc.
* Makefile (%.tab.c %.tab.h): Remove the trick of keeping the
old y.tab.h file if it has not changed. This was once a good
idea, but now that we have a proper grouped targets pattern
rule which knows that y.tab.h depends on and is produced from
parser.y, the trick causes y.tab.h to be perpetually out of
date due to its old time stamp, and so yacc is run on every
build.
| -rw-r--r-- | Makefile | 7 |
1 files changed, 1 insertions, 6 deletions
@@ -280,15 +280,10 @@ lex.yy.c: $(top_srcdir)parser.l %.tab.c %.tab.h: $(top_srcdir)parser.% $(call ABBREV,YACC) - $(call SH, \ - if [ -e y.tab.h ]; then mv y.tab.h y.tab.h.old ; fi) - $(call SH,rm -f y.tab.c) + $(call SH,rm -f y.tab.c y.tab.h) $(call SH, \ if $(TXR_YACC) -v -d $< ; then \ chmod a-w y.tab.c ; \ - if cmp -s y.tab.h y.tab.h.old ; then \ - mv y.tab.h.old y.tab.h ; \ - fi ; \ else \ rm y.tab.c ; \ false ; \ |