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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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4
configure.ac
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@@ -123,6 +123,10 @@ AC_PROG_GNU_M4
AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
AC_DEFINE_UNQUOTED([M4_GNU_OPTION], ["$M4_GNU"], [Define to "-g" if GNU M4
supports -g, otherwise to "".])
AC_PATH_PROG([PERL], [perl])
if test -z "$PERL"; then
AC_MSG_ERROR([perl not found])
fi
AM_MISSING_PROG([HELP2MAN], [help2man])
AC_PATH_PROG([XSLTPROC], [xsltproc])
AC_SUBST([XSLTPROC])