File libsndfile-1.0.17-ac.diff of Package libsndfile

--- configure.ac
+++ configure.ac
@@ -31,6 +31,8 @@ AC_LANG([C])
 SHARED_VERSION_INFO="1:17:0"
 
 AC_PROG_CC
+AM_PROG_CC_C_O
+AC_PROG_CXX
 AM_PROG_LIBTOOL
 
 AC_CHECK_PROG(autogen, autogen, yes, no)