diff -Nur kdegraphics-3.4.2.orig/kfile-plugins/exr/configure.in.in kdegraphics-3.4.2/kfile-plugins/exr/configure.in.in
--- kdegraphics-3.4.2.orig/kfile-plugins/exr/configure.in.in	2005-05-23 14:06:14.000000000 +0200
+++ kdegraphics-3.4.2/kfile-plugins/exr/configure.in.in	2005-07-26 13:32:45.000000000 +0200
@@ -68,6 +68,17 @@
   AC_SUBST(EXR_FLAGS)
 ])
 
-AC_FIND_LIBEXR
-AM_CONDITIONAL(include_EXR_MODULES, test -n "$LIB_EXR")
+AC_ARG_WITH([openexr],
+  [AC_HELP_STRING([--with-openexr],
+    [Enable support for OpenEXR @<:@default=check@:>@])],
+  [], with_openexr=check)
+
+if test "x$with_openexr" != xno; then
+  AC_FIND_LIBEXR
 
+  if test "x$with_openexr" != xcheck && test -z "$LIB_EXR"; then
+    AC_MSG_ERROR([--with-openexr was given, but test for OpenEXR failed])
+  fi
+fi
+
+AM_CONDITIONAL(include_EXR_MODULES, test -n "$LIB_EXR")