--- /dev/null
+From: Tomáš Chvátal <tchvatal@suse.com>
+Date: Thu, 25 Feb 2016 16:16:19 +0000 (+0100)
+Subject: Add std prefix to isnan check to fix build with glibc > 2.23
+X-Git-Url: https://gerrit.libreoffice.org/gitweb?p=core.git;a=commitdiff_plain;h=d7c64d6e430e9640c77c846006a13bbc78704c28
+
+Add std prefix to isnan check to fix build with glibc > 2.23
+
+Change-Id: I6321cd905152231bb013e25f7b268f85453fe917
+---
+
+diff --git a/xmloff/source/draw/ximp3dscene.cxx b/xmloff/source/draw/ximp3dscene.cxx
+index 5cf205f..525e2fb 100644
+--- a/xmloff/source/draw/ximp3dscene.cxx
++++ b/xmloff/source/draw/ximp3dscene.cxx
+@@ -66,7 +66,7 @@ SdXML3DLightContext::SdXML3DLightContext(
+ {
+ ::basegfx::B3DVector aVal;
+ SvXMLUnitConverter::convertB3DVector(aVal, sValue);
+- if (!isnan(aVal.getX()) && !isnan(aVal.getY()) && !isnan(aVal.getZ()))
++ if (!std::isnan(aVal.getX()) && !std::isnan(aVal.getY()) && !std::isnan(aVal.getZ()))
+ {
+ maDirection = aVal;
+ }