Have AC_PROG_SWIG be more flexible w.r.t. major/minor version numbers.

	* m4/swig.m4: Here.

ChangeLog

+2010-06-29  Roland Levillain  <roland@lrde.epita.fr>
+
+	Have AC_PROG_SWIG be more flexible w.r.t. major/minor version numbers.
+
+	* m4/swig.m4: Here.
+
 2010-06-24  Roland Levillain  <roland@lrde.epita.fr>
 
 	Add `mesh-segm-skel' to the branches to be uploaded (as snapshot).

m4/swig.m4

@@ -61,9 +61,12 @@ AC_DEFUN([AC_PROG_SWIG],[
                         if test -z "$available_patch" ; then
                                 [available_patch=0]
                         fi
-                        if test $available_major -ne $required_major \
-                                -o $available_minor -ne $required_minor \
-                                -o $available_patch -lt $required_patch ; then
+                        if test \
+                          $available_major -lt $required_major \
+                          -o \( $available_major -eq $required_major \
+                             -a \( $available_minor -lt $required_minor \
+                                -o \( $available_minor -eq $required_minor \
+                                   -a $available_patch -lt $required_patch \) \) \) ; then
                                 AC_MSG_WARN([SWIG version >= $1 is required.  You have $swig_version.  You should look at http://www.swig.org])
                                 SWIG='echo "Error: SWIG version >= $1 is required.  You have '"$swig_version"'.  You should look at http://www.swig.org" ; false'
                         else