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build: look for Perl in configure.

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Bison uses "/usr/bin/perl" or "perl" in several places, and it does
not appear to be a problem.  But, at least to make it simpler to
change PERL on the make command line, check for perl in configure.

* configure.ac (PERL): New.
* doc/Doxyfile.in, doc/Makefile.am, tests/bison.in: Use it.
This commit is contained in:
Akim Demaille
2012-04-08 08:58:43 +02:00
parent e272d9dc80
commit 82443642d2
4 changed files with 7 additions and 3 deletions
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2
doc/Doxyfile.in
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@@ -940,7 +940,7 @@ EXTERNAL_GROUPS = YES
# The PERL_PATH should be the absolute path and name of the perl script
# interpreter (i.e. the result of `which perl').
PERL_PATH = /usr/bin/perl
PERL_PATH = @PERL@
#---------------------------------------------------------------------------
# Configuration options related to the dot tool

2
doc/Makefile.am
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@@ -30,7 +30,7 @@ $(srcdir)/cross-options.texi: $(top_srcdir)/src/getargs.c $(CROSS_OPTIONS_PL)
$(AM_V_at)rm -f $@.tmp
$(AM_V_at)cd $(top_builddir)/src && $(MAKE) $(AM_MAKEFLAGS) bison
$(AM_V_at)$(top_builddir)/src/bison --help \
| perl $(CROSS_OPTIONS_PL) $(top_srcdir)/src/scan-gram.l >$@.tmp
| $(PERL) $(CROSS_OPTIONS_PL) $(top_srcdir)/src/scan-gram.l >$@.tmp
$(AM_V_at)diff -u $@~ $@.tmp || true
$(AM_V_at)mv $@.tmp $@
MAINTAINERCLEANFILES = $(srcdir)/cross-options.texi