From: Florian Forster <sifnfors@faui02h.informatik.uni-erlangen.de>
Date: Mon, 22 Jan 2007 09:56:10 +0000 (+0100)
Subject: src/collectd.h: Include `math.h' and try to force it to define `NAN'.
X-Git-Tag: collectd-4.0.0~221
X-Git-Url: https://git.octo.it/?p=collectd.git;a=commitdiff_plain;h=1d6c0f70908b5f65d1a3673dbe6fd9b81aab49f9

src/collectd.h: Include `math.h' and try to force it to define `NAN'.
---

diff --git a/src/collectd.h b/src/collectd.h
index 3c8d3516..c05b3e7b 100644
--- a/src/collectd.h
+++ b/src/collectd.h
@@ -100,6 +100,20 @@
 # define assert(...) /* nop */
 #endif
 
+/*
+ * This weird macro cascade forces the glibc to define `NAN'. I don't know
+ * another way to solve this, so more intelligent solutions are welcome. -octo
+ */
+#ifndef __USE_ISOC99
+# define DISABLE__USE_ISOC99 1
+# define __USE_ISOC99 1
+#endif
+#include <math.h>
+#ifdef DISABLE__USE_ISOC99
+# undef DISABLE__USE_ISOC99
+# undef __USE_ISOC99
+#endif
+
 #if HAVE_DIRENT_H
 # include <dirent.h>
 # define NAMLEN(dirent) strlen((dirent)->d_name)