Fix bug in cuBLAS disabling configure option

build/configure.sh

@@ -576,8 +576,7 @@ if [ "x$LAPACK" != "xno" ]; then
 fi
 # End of LAPACK checks
 # cuBLAS checks
-if [ "xCUBLAS" != "xno" ]; then
-    echo -n "configure: checking for cuBLAS... "
+if [ "x$CUBLAS" != "xno" ]; then
     pkg-config --version > /dev/null
     use_pkg_config=$?
     if [ "x${CUDAFLAGS}${CUDALDFLAGS}" = "x" ]; then