Check for availability of isnan(3) at configure time. Exit immediately

with an appropriate error message if it's not there.


git-svn-id: http://svn.cactuscode.org/arrangements/CactusUtils/NaNChecker/trunk@13 ff385933-4943-42dc-877b-ffc776028de6

1 files changed, 14 insertions, 0 deletions

diff --git a/src/make.configuration.defn b/src/make.configuration.defn
new file mode 100644
index 0000000..0440568
--- /dev/null
+++ b/src/make.configuration.defn
@@ -0,0 +1,14 @@
+# make.configuration.defn for NaNChecker
+
+# make sure that isnan(3) is available on this architecture
+
+HAVE_ISNAN := $(shell grep HAVE_ISNAN $(CONFIG)/cctk_Config.h)
+
+ifneq (define, $(findstring define,$(HAVE_ISNAN)))
+$(NAME): MissingIsNaN
+.pseudo: MissingIsNaN
+MissingIsNaN:
+	@echo "Thorn NaNChecker requires isnan(3) which is not available on this architecture."
+	@echo "Please remove NaNChecker from your ThornList !"
+	exit 2
+endif