diff options
| author | Akim Demaille <demaille@gostai.com> | 2009-06-29 15:02:48 +0200 |
|---|---|---|
| committer | Akim Demaille <demaille@gostai.com> | 2009-06-29 20:40:02 +0200 |
| commit | 80d653fd3009223775dbf7c75fb8fdfb0407b968 (patch) | |
| tree | 95e21efd52f4f8f5deb7e40e4f4915d8a6e63e26 /examples | |
| parent | 0210a4bf5eaa64a761d1bb45f1a3e84b115a31c6 (diff) | |
| download | bison-80d653fd3009223775dbf7c75fb8fdfb0407b968.tar.gz | |
build: avoid concurrent extraction of calc++.
* examples/calc++/Makefile.am (calc.stamp): New.
Depend on it to create the sources of calc++ so that concurrent
builds don't launch several "extexi" in parallel.
Not only this is inefficient, this also builds incorrect sources
with several extractions mixed together.
Cherry-picked from 5ece73eaa19c79d5dd40b36a2a7d38cb397c2fcd.
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/calc++/Makefile.am | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/examples/calc++/Makefile.am b/examples/calc++/Makefile.am index 60467384..1f825056 100644 --- a/examples/calc++/Makefile.am +++ b/examples/calc++/Makefile.am @@ -1,5 +1,5 @@ ## Process this file with automake to produce Makefile.in -*-Makefile-*- -## Copyright (C) 2005, 2006 Free Software Foundation, Inc. +## Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc. # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -31,12 +31,16 @@ $(BISON): $(BISON_IN) doc = $(top_srcdir)/doc/bison.texinfo extexi = $(top_srcdir)/examples/extexi # Extract in src. -$(calc_extracted): $(doc) $(extexi) +calc.stamp: $(doc) $(extexi) + rm -f $@ $@.tmp + touch $@.tmp cd $(srcdir) && \ $(AWK) -f ../extexi -v VERSION="$(VERSION)" \ ../../doc/bison.texinfo -- calc++-parser.yy \ calc++-scanner.ll calc++.cc calc++-driver.hh calc++-driver.cc + mv $@.tmp $@ +$(calc_extracted): calc.stamp ## ------------------- ## ## Parser generation. ## |