Fix strange %define locations for default values.

[bison.git] / ChangeLog

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+2009-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       Fix strange %define locations for default values.
+       Reported by Akim Demaille at
+       <http://lists.gnu.org/archive/html/bug-bison/2007-12/msg00001.html>
+       and discussed again starting at
+       <http://lists.gnu.org/archive/html/bison-patches/2008-11/msg00102.html>.
+       * data/bison.m4 (b4_percent_define_default): Leave syncline blank
+       because location information is bogus.
+       Use angle brackets to delimit fake file name because square brackets
+       look like underexpanded m4.  Choose a better fake file name.
+       Use negative line numbers.
+       * src/muscle_tab.c (muscle_percent_define_default): Likewise.
+       * src/location.c (location_print): If line for a boundary is negative,
+       only print that boundary's file name.
+       * src/location.h: Document that.
+       * tests/skeletons.at (%define Boolean variables: invalid skeleton
+       defaults): Update output.
+
 2009-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
 
        Pacify ./configure --enable-gcc-warnings.