# HG changeset patch
# User Rik <rik@octave.org>
# Date 1424649021 28800
# Node ID 13bc2737177ca6d072b6a61e2a750c8bb839635b
# Parent  2e556954ced88745ca4f4b9047a42f4527499f52
Fix incorrect reporting of OpenMP use by configure (bug #44346).

* configure.ac: Check whether ax_openmp found compiler options before reporting
that OpenMP was used.

diff -r 2e556954ced8 -r 13bc2737177c configure.ac
--- a/configure.ac	Sun Feb 22 18:12:57 2015 -0500
+++ b/configure.ac	Sun Feb 22 15:50:21 2015 -0800
@@ -532,8 +532,12 @@
   AC_LANG_PUSH(C++)
   AX_OPENMP
   AC_LANG_POP(C++)
-  CFLAGS="$CFLAGS $OPENMP_CFLAGS"
-  CXXFLAGS="$CXXFLAGS $OPENMP_CXXFLAGS"
+  if test -n "$OPENMP_CFLAGS" && test -n "OPENMP_CXXFLAGS"; then
+    CFLAGS="$CFLAGS $OPENMP_CFLAGS"
+    CXXFLAGS="$CXXFLAGS $OPENMP_CXXFLAGS"
+  else
+    USE_OPENMP=no 
+  fi
 fi
 
 ### Defaults for cross compiling.  BUILD_CC and BUILD_CXX are