build system: modify blas check for os x 10.10

m4/ax_blas.m4

@@ -170,11 +170,11 @@ if test $ax_blas_ok = no; then
 	AC_CHECK_LIB(mkl, $sgemm, [ax_blas_ok=yes;BLAS_LIBS="-lmkl -lguide -lpthread"],,[-lguide -lpthread])
 fi
 
-# BLAS in Apple vecLib library?
+# BLAS in Apple Accelerate library?
 if test $ax_blas_ok = no; then
-	save_LIBS="$LIBS"; LIBS="-framework vecLib $LIBS"
-	AC_MSG_CHECKING([for $sgemm in -framework vecLib])
-	AC_TRY_LINK_FUNC($sgemm, [ax_blas_ok=yes;BLAS_LIBS="-framework vecLib"])
+	save_LIBS="$LIBS"; LIBS="-framework Accelerate $LIBS"
+	AC_MSG_CHECKING([for $sgemm in -framework Accelerate])
+	AC_TRY_LINK_FUNC($sgemm, [ax_blas_ok=yes;BLAS_LIBS="-framework Accelerate"])
 	AC_MSG_RESULT($ax_blas_ok)
 	LIBS="$save_LIBS"
 fi