Improved bison check; now configure accepts 1.28, 1.35, and 1.75 only.

diff --git a/configure.in b/configure.in
index 5a4de05eaaf86a2805f420df7c16dfa85cdba159..409951de1c0fe3b7f960422fc44c7d28db525754 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -136,8 +136,8 @@ if test "$YACC" != "bison -y"; then
 else
     AC_MSG_CHECKING([bison version])
     set `bison --version| grep 'GNU Bison' | cut -d ' ' -f 4 | sed -e 's/\./ /'`
-    if test "${1}" = "1" -a "${2}" -lt "28"; then
-      AC_MSG_WARN(You will need bison 1.28 if you want to regenerate the Zend parser (found ${1}.${2}).)
+    if test "${1}" = "1" -a "(" "${2}" -lt "75" -a "${2}" -ne "28" -a "${2}" -ne "35" -o "${2}" -ge "875" ")"; then
+      AC_MSG_WARN(You will need bison 1.28, 1.35 or 1.75 if you want to regenerate the Zend parser (found ${1}.${2}).)
     fi
     AC_MSG_RESULT(${1}.${2} (ok))
 fi