Fix FPE #include.

We only need the #include if we actually use the functions the file
provides. Disable it otherwise to ensure that the tests continue to
run on platforms that don't provide <cfenv>.

diff --git a/tests/tests.h b/tests/tests.h
index 2d8cfbaa9298e576eb7b1b3a41faf2c9d69099d4..dbc8ab05757e517c6958c63d2eca7cdd7227b611 100644 (file)
--- a/tests/tests.h
+++ b/tests/tests.h
@@ -32,7 +32,9 @@
 #include <sstream>
 #include <iomanip>
 
-#include <cfenv>
+#if defined(DEBUG) && defined(DEAL_II_HAVE_FP_EXCEPTIONS)
+#  include <cfenv>
+#endif
 
 
 // silence extra diagnostics in the testsuite