linux mingw-w64 build tweaks

common.h

@@ -70,6 +70,10 @@ extern "C"
 
 #endif
 
+#if !defined(fmax) || !defined(fmin)
+#include <math.h>
+#endif
+
 #ifndef max
 # define max fmax
 #endif

win32/Makefile

@@ -43,7 +43,7 @@ gtest-all.o : $(GTEST_DIR)/src/gtest-all.cc
 
 %.o: %.rc
 	@echo [RES] $^
-	@windres -i $^ -o $@
+	@$(HOST)windres -i $^ -o $@
 
 $(TEST_TARGET): $(OBJFILES) $(TEST_OBJFILES) gtest-all.o
 	@echo [LD] $@

win32/sdlpal.rc

@@ -7,7 +7,7 @@
 //
 // Generated from the TEXTINCLUDE 2 resource.
 //
-#include "Windows.h"
+#include "windows.h"
 
 /////////////////////////////////////////////////////////////////////////////
 #undef APSTUDIO_READONLY_SYMBOLS

win32/win32.cpp

@@ -3,9 +3,9 @@
 #define _CRT_SECURE_NO_WARNINGS
 
 #include <tchar.h>
-#include <Windows.h>
-#include <CommCtrl.h>
-#include <ShlObj.h>
+#include <windows.h>
+#include <commctrl.h>
+#include <shlobj.h>
 #include <string>
 #include "resource.h"
 #include "../global.h"