Update version detection for python 3.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

acinclude.m4.in

@@ -4463,7 +4463,7 @@ AC_REQUIRE([KDE_CHECK_LIBPTHREAD])
 AC_REQUIRE([KDE_CHECK_PYTHON_DIR])
 
 if test -z "$1"; then
-  version="1.5"
+  version="3.0"
 else
   version="$1"
 fi
@@ -4551,22 +4551,12 @@ fi
 
 AC_DEFUN([KDE_CHECK_PYTHON],
 [
-  KDE_CHECK_PYTHON_INTERN("2.7",
-    [KDE_CHECK_PYTHON_INTERN("2.6",
-      [KDE_CHECK_PYTHON_INTERN("2.5",
-        [KDE_CHECK_PYTHON_INTERN("2.4",
-          [KDE_CHECK_PYTHON_INTERN("2.3", 
-            [KDE_CHECK_PYTHON_INTERN("2.2", 
-              [KDE_CHECK_PYTHON_INTERN("2.1", 
-                [KDE_CHECK_PYTHON_INTERN("2.0", 
-                  [KDE_CHECK_PYTHON_INTERN($1, $2) ])
-                ])
-              ])
-            ])
-          ])
-        ])
-      ])
-    ])
+  for PYTHON_VER_TEST in 3.{12,11,10,9,8,7,6,5,4,3,2,1,0}; do
+    KDE_CHECK_PYTHON_INTERN("$PYTHON_VER_TEST")
+    if test -n "$PYTHONLIB"; then
+      break
+    fi
+  done
 ])
 
 AC_DEFUN([KDE_CHECK_STL],