glew: get rid from windows carriage returns, breaks compile at least on 64bits

x11/glew/glew.conf

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../glew/glew.conf
-# Copyright (C) 2006 The OpenSDE Project
+# Copyright (C) 2006 - 2009 The OpenSDE Project
 #
 # More information can be found in the files COPYING and README.
 #
@@ -21,7 +21,8 @@ glew_main() {
 	-i -e 's,=? /usr,=? '$root$prefix',g' Makefile
 
 	sed -i -e 's,X11R6,X11R7,g' config/Makefile.linux
-
+	#bug in glew 1.5.1, not sure about 32b but it definently doesn't compile on 64
+	sed -i -e 's/\r//' config/config.guess
 }
 
 hook_add premake 5 "glew_main"