From: Florian Forster <octo@huhu.verplant.org>
Date: Tue, 3 Apr 2007 07:03:51 +0000 (+0200)
Subject: configure/collectd.h: Undef unusable `NAN' from <math.h> before defining our own.
X-Git-Tag: collectd-4.0.0~108^2~1
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=dcc46cbccd1955fc6608c2febb218a6a233cc642;p=collectd.git

configure/collectd.h: Undef unusable `NAN' from <math.h> before defining our own.
---

diff --git a/configure.in b/configure.in
index a085240b..5d346521 100644
--- a/configure.in
+++ b/configure.in
@@ -453,6 +453,9 @@ if test "x$nan_type" = "xnone"; then
       [[
 #include <stdlib.h>
 #include <math.h>
+#ifdef NAN
+# undef NAN
+#endif
 #define NAN (0.0 / 0.0)
 #ifndef isnan
 # define isnan(f) ((f) != (f))
diff --git a/src/collectd.h b/src/collectd.h
index e1ce97c1..3d44c515 100644
--- a/src/collectd.h
+++ b/src/collectd.h
@@ -113,6 +113,9 @@
 /* #endif NAN_STATIC_ISOC */
 #elif NAN_ZERO_ZERO
 # include <math.h>
+# ifdef NAN
+#  undef NAN
+# endif
 # define NAN (0.0 / 0.0)
 # ifndef isnan
 #  define isnan(f) ((f) != (f))