Update URL for our custom gas-preprocessor.pl

diff --git a/BUILDING.txt b/BUILDING.txt
index c40fc7c4e83f5cff6d0f1348ffccb784dc5e8154..edd447db12757edde2dddca499be2f93f9284fe1 100644 (file)
--- a/BUILDING.txt
+++ b/BUILDING.txt
@@ -332,7 +332,7 @@ libjpeg-turbo for these platforms.
 Additional build requirements:
 
   gas-preprocessor.pl
-  (https://sourceforge.net/p/libjpeg-turbo/code/HEAD/tree/gas-preprocessor)
+  (https://raw.githubusercontent.com/libjpeg-turbo/gas-preprocessor/master/gas-preprocessor.pl)
   should be installed in your PATH.