ircd::js: Workaround SpiderMonkey linkage bug when DEBUG is defined.

include/ircd/js/js.h

@@ -45,6 +45,7 @@
 // include directives are written as "jsxxx.h" or "mozilla/xxx.h" etc. Our includes are all
 // <ircd/xxx.h> and shouldn't have any conflict issues.
 #include <jsapi.h>
+#include <jsfriendapi.h>
 #include <js/Conversions.h>
 
 // Some forward declarations for jsapi items not declared in the above includes,

ircd/js.cc

@@ -21,9 +21,9 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <js/Initialization.h>                   // JS_Init() / JS_ShutDown()
-#include <jsfriendapi.h>
 #include <ircd/js/js.h>
+#include <js/Initialization.h>                   // JS_Init() / JS_ShutDown()
+#include <mozilla/ThreadLocal.h>                 // For GetThreadType() linkage hack (see: down)
 
 namespace ircd {
 namespace js   {
@@ -137,6 +137,26 @@ js::ReportOutOfMemory(ExclusiveContext *const c)
 	std::terminate();
 }
 
+//
+// This DEBUG section is a fix for linkage errors when SpiderMonkey is compiled
+// in debug mode.
+//
+#ifdef DEBUG
+namespace js  {
+namespace oom {
+
+extern mozilla::ThreadLocal<uint32_t> threadType;
+
+uint32_t
+GetThreadType()
+{
+	return threadType.get();
+}
+
+} // namespace oom
+} // namespace js
+#endif // DEBUG
+
 // This was only ever defined for the SpiderMonkey headers and some of our hacks above.
 #undef DEBUG