From 7255d1a1b8e0b12cc652bf6d1becbe46bc328c6e Mon Sep 17 00:00:00 2001
From: Dana Robinson <derobins@hdfgroup.org>
Date: Tue, 22 Mar 2016 02:59:28 -0500
Subject: [svn-r29502] The thread-safety and enable Java options have been
 marked as "unsupported" in the autotools.

Tested on: 64-bit Ubuntu 15.10 w/ gcc 5.2.1
           autotools serial w/ Java
---
 configure.ac | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 59157b2..272f5cd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1575,7 +1575,7 @@ AC_ARG_ENABLE([threadsafe],
                               [default=no]])],
               [THREADSAFE=$enableval])
 
-## The high-level, C++, and Fortran interfaces are not compatible
+## The high-level, C++, Fortran and Java interfaces are not compatible
 ## with the thread-safety option because the lock is not hoisted
 ## into the higher-level API calls.
 
@@ -1607,6 +1607,14 @@ if test "X${ALLOW_UNSUPPORTED}" != "Xyes"; then
   fi
 fi
 
+## --enable-threadsafe is also incompatible with --enable-java unless
+## --enable-unsupported has been specified on the configure line.
+if test "X${ALLOW_UNSUPPORTED}" != "Xyes"; then
+  if test "X${HDF_JAVA}" = "Xyes" -a "X${enable_threadsafe}" = "Xyes"; then
+    AC_MSG_ERROR([--enable-java and --enable-threadsafe flags are incompatible. Use --enable-unsupported to override this error.])
+  fi
+fi
+
 
 case "X-$THREADSAFE" in
   X-|X-no)
-- 
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