build: avoid concurrent extraction of calc++.

[bison.git] / ChangeLog

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+2009-06-29  Akim Demaille  <demaille@gostai.com>
+
+       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.
+
 2009-06-29  Akim Demaille  <demaille@gostai.com>
 
        parse.error: fix.