Made the queuemaintest a multithreading example, because why not.

GNUmakefile

@@ -64,6 +64,7 @@ example: libui
 examples:
 	@$(MAKE) -f GNUmakefile example EXAMPLE=controlgallery 
 	@$(MAKE) -f GNUmakefile example EXAMPLE=histogram
+	@$(MAKE) -f GNUmakefile example EXAMPLE=cpp-multithread
 
 .PHONY: examples
 

build/GNUmakefile.example

@@ -9,8 +9,13 @@ endif
 
 include $(OS)/GNUosspecific.mk
 
+ifneq ($(findstring cpp-,$(EXAMPLE)),)
+CXXFILES += \
+	examples/$(EXAMPLE)/main.cpp
+else
 CFILES += \
 	examples/$(EXAMPLE)/main.c
+endif
 
 HFILES += \
 	ui.h

examples/cpp-multithread/main.cpp

@@ -6,7 +6,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <time.h>
-#include "../ui.h"
+#include "../../ui.h"
 using namespace std;
 
 uiMultilineEntry *e;