[webkit-gtk] webkit-gtk-2.10.8 fails to compile with clang-3.8

[Franz Fellner]

/var/tmp/portage/net-libs/webkit-gtk-2.10.8/work/webkitgtk-2.10.8/Source/JavaScriptCore/runtime/Options.cpp:613:67: error: use of undeclared identifier 'isnan'
        return (m_entry.doubleVal == other.m_entry.doubleVal) || (isnan(m_entry.doubleVal) && isnan(other.m_entry.doubleVal));
                                                                  ^
/var/tmp/portage/net-libs/webkit-gtk-2.10.8/work/webkitgtk-2.10.8/Source/JavaScriptCore/runtime/Options.cpp:613:95: error: use of undeclared identifier 'isnan'
        return (m_entry.doubleVal == other.m_entry.doubleVal) || (isnan(m_entry.doubleVal) && isnan(other.m_entry.doubleVal));


The following patch makes webkit-gtk compile fine:


--- Source/JavaScriptCore/runtime/Options.cpp	2016-03-15 13:35:20.559319789 +0100
+++ Source/JavaScriptCore/runtime/Options.cpp.new	2016-03-15 13:35:08.988320570 +0100
@@ -610,7 +610,7 @@
     case Options::Type::unsignedType:
         return m_entry.unsignedVal == other.m_entry.unsignedVal;
     case Options::Type::doubleType:
-        return (m_entry.doubleVal == other.m_entry.doubleVal) || (isnan(m_entry.doubleVal) && isnan(other.m_entry.doubleVal));
+        return (m_entry.doubleVal == other.m_entry.doubleVal) || (std::isnan(m_entry.doubleVal) && std::isnan(other.m_entry.doubleVal));
     case Options::Type::int32Type:
         return m_entry.int32Val == other.m_entry.int32Val;
     case Options::Type::optionRangeType:

--