patch 9.1.1488: configure: using obsolete macro AC_PROG_GCC_TRADITIONAL

Problem:  configure: using obsolete macro AC_PROG_GCC_TRADITIONAL
Solution: drop it from configure.ac, regenerate auto/configure

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 3aaaf44..8e6849a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -720,6 +720,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1488,
+/**/
     1487,
 /**/
     1486,