build: Use AX_PROG_BISON
No one tests yacc/byacc. Let's just request bison specifically.
Tested-by: Andreas Boll <andreas.boll.dev@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=46815
diff --git a/configure.ac b/configure.ac
index f338e20..70599e1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -56,13 +56,9 @@
LT_PREREQ([2.2])
LT_INIT([disable-static])
-AC_PROG_YACC
-AC_PATH_PROG([YACC_INST], $YACC)
-if test ! -f "$srcdir/src/glsl/glcpp/glcpp-parse.c"; then
- if test -z "$YACC_INST"; then
- AC_MSG_ERROR([yacc not found - unable to compile glcpp-parse.y])
- fi
-fi
+AX_PROG_BISON([],
+ AS_IF([test ! -f "$srcdir/src/glsl/glcpp/glcpp-parse.c"]
+ [AC_MSG_ERROR([bison not found - unable to compile glcpp-parse.y])]))
AC_PROG_LEX
AC_PATH_PROG([PERL], [perl])