From 143fb237f93935fb89d349686ca55b8324b2c69f Mon Sep 17 00:00:00 2001
From: Ward Fisher <wfisher@ucar.edu>
Date: Mon, 18 Sep 2017 13:31:15 -0600
Subject: [PATCH] Disabled CDF5 generation support for ncgen if USE_CDF5 is
 false.

---
 ncgen/main.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/ncgen/main.c b/ncgen/main.c
index ddcdb6881..dd6079ce6 100644
--- a/ncgen/main.c
+++ b/ncgen/main.c
@@ -498,6 +498,13 @@ main(
 
     /* Compute the k_flag (1st pass) using rules in the man page (ncgen.1).*/
 
+#ifndef USE_CDF5
+    if(k_flag == NC_FORMAT_CDF5) {
+      derror("Output format CDF5 requested, but netcdf was built without cdf5 support.");
+      return 0;
+    }
+#endif
+
 #ifndef USE_NETCDF4
     if(enhanced_flag) {
 	derror("CDL input is enhanced mode, but --disable-netcdf4 was specified during build");