trunk: download sph2pipe from SourceForge if the primary server fails

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@3245 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8

tools/Makefile

@@ -128,7 +128,8 @@ sph2pipe_v2.5: sph2pipe_v2.5.tar.gz
 		tar xzf sph2pipe_v2.5.tar.gz
 
 sph2pipe_v2.5.tar.gz:
-		wget -T 10 -t 3 http://merlin.fit.vutbr.cz/kaldi/sph2pipe_v2.5.tar.gz
+		wget -T 10 -t 3 http://merlin.fit.vutbr.cz/kaldi/sph2pipe_v2.5.tar.gz || \
+		wget --no-check-certificate -T 10  https://sourceforge.net/projects/kaldi/files/sph2pipe_v2.5.tar.gz
 
 openblas: openblas_compiled