fix Windows cross-compile build

makefile

@@ -1021,12 +1021,12 @@ endif
 ifdef embed
 $(embed): $(embed-objects) $(embed-loader-o)
 	@echo "building $(embed)"
-	$(build-cxx) $(^) -mwindows -mconsole -static -o $(@)
+	$(cxx) $(^) -mwindows -mconsole -static -o $(@)
 
 $(build-embed)/%.o: $(src)/%.cpp
 	@echo "compiling $(@)"
 	@mkdir -p $(dir $(@))
-	$(build-cxx) -D_UNICODE -DUNICODE -c $(<) -o $(@)
+	$(cxx) -D_UNICODE -DUNICODE -c $(<) -o $(@)
 
 $(embed-loader-o): $(embed-loader) $(converter)
 	@mkdir -p $(dir $(@))
@@ -1047,7 +1047,6 @@ $(build-embed-loader)/%.o: $(src)/%.cpp
 	@mkdir -p $(dir $(@))
 	$(cxx) -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/win32 \
 		-D_JNI_IMPLEMENTATION_ -c $(<) -o $(@)
-		
 endif
 
 $(build)/%.o: $(lzma)/C/%.c

src/embed.cpp

@@ -8,7 +8,7 @@
    There is NO WARRANTY for this software.  See license.txt for
    details. */
 
-#include <Windows.h>
+#include <windows.h>
 #include <tchar.h>
 #include <stdio.h>
 #include <stdint.h>

src/embedded-loader.cpp

@@ -8,7 +8,7 @@
    There is NO WARRANTY for this software.  See license.txt for
    details. */
 
-#include <Windows.h>
+#include <windows.h>
 #include <tchar.h>
 #include <stdint.h>