From a0ec9c282b3dbabec9d1f46e86c37336b9cd490b Mon Sep 17 00:00:00 2001
From: Scot Breitenfeld <brtnfld@hdfgroup.org>
Date: Wed, 20 Mar 2013 23:04:19 -0500
Subject: [svn-r23410] HDFFV-8264: Using F2003, build fails on Fedora with
 undefined reference to __h5r_MOD_h5rget_region_region_f

This turned out being an issue with configure. The reporter submitted a patch which fixed the fact that we should not be
setting AM_FCFLAGS (an automake variable) with FFLAGS (a user variable).

I removed this, and we now only set FFLAGS if the environment variable is set, otherwise we don't.

Tested: jam (gnu)
---
 configure.ac | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index 38b342a..a57d149 100644
--- a/configure.ac
+++ b/configure.ac
@@ -434,9 +434,10 @@ if test "X$HDF_FORTRAN" = "Xyes"; then
 
   ## --------------------------------------------------------------------
   ## General Fortran flags
-  ##
-  AM_FCFLAGS="${AM_FCFLAGS} ${FFLAGS}"
-  FCFLAGS="${FCFLAGS} ${FFLAGS}"
+  ## Only add FFLAGS to FCFLAGS if it's set.
+  if test "x$FFLAGS" != "x" ; then
+    FCFLAGS="${FCFLAGS} ${FFLAGS}"
+  fi
 
   ## --------------------------------------------------------------------
   ## Fortran source extention
-- 
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