--- rxvt-unicode/configure.ac	2007/06/28 17:19:56	1.61
+++ rxvt-unicode/configure.ac	2007/07/26 19:18:59	1.65
@@ -459,9 +459,9 @@
 dnl# the only reasonable way to find libXpm is do-it-yourself
 dnl# only check if we want xpm-background
 
-LIBAFTERIMAGE_CFLAGS=
+AFTERIMAGE_CFLAGS=
 AFTERIMAGE_LIBS=
-have_afterimage=
+AFTERIMAGE_VERSION=
 
 if test x$support_afterimage = xyes; then
   support_afterimage=no
@@ -469,13 +469,18 @@
   if test "x$afterimage_config" = "x" ; then
     AC_PATH_PROG(afterimage_config, afterimage-config, no)
   fi
-
-  AC_MSG_CHECKING(for libAfterImage)
-  if $afterimage_config --version >/dev/null 2>&1 ; then
-    LIBAFTERIMAGE_CFLAGS=`$afterimage_config --cflags`
+  AC_PROG_AWK
+  AC_MSG_CHECKING(for libAfterImage version >= 1.15)
+  AFTERIMAGE_VERSION=`$afterimage_config --version`
+  if test -n $AFTERIMAGE_VERSION ; then
+    AFTERIMAGE_CFLAGS=`$afterimage_config --cflags`
     AFTERIMAGE_LIBS=`$afterimage_config --libs`
     if test "x$AFTERIMAGE_LIBS" != "x"; then
-      support_afterimage=yes
+      libai_ver_major=`echo $AFTERIMAGE_VERSION | $AWK -F . '{print $1}'`
+      libai_ver_minor=`echo $AFTERIMAGE_VERSION | $AWK -F . '{print $2}'`
+      if test $libai_ver_major -gt 1 -o \( $libai_ver_major -eq 1 -a $libai_ver_minor -ge 15 \); then
+        support_afterimage=yes
+      fi
     fi
   fi
 
@@ -911,7 +916,7 @@
 AC_SUBST(X_LIBS)
 AC_SUBST(X_EXTRA_LIBS)
 
-AC_SUBST(LIBAFTERIMAGE_CFLAGS)
+AC_SUBST(AFTERIMAGE_CFLAGS)
 AC_SUBST(AFTERIMAGE_LIBS)
 
 AC_ARG_PROGRAM