--- gai-0.5.10/configure.in~	2005-06-12 09:48:54.000000000 +0200
+++ gai-0.5.10/configure.in	2006-07-31 09:25:19.000000000 +0200
@@ -149,7 +149,7 @@
 
 dnl Checking for X header file.
 
-AC_CHECK_HEADER(/usr/X11R6/include/X11/X.h, [], [
+AC_CHECK_HEADER(X11/X.h, [], [
        AC_MSG_ERROR(No header files for X windows is found. Is xlib devel installed?)
 ])