diff --git a/SConscript b/SConscript
index ee2e92728..1e306432e 100644
--- a/SConscript
+++ b/SConscript
@@ -473,7 +473,10 @@ elif GetOption('release'):
 
 if GetOption('static'):
 	if platform == "Windows":
-		env.Append(CPPDEFINES=['_PTW32_STATIC_LIB'])
+		if compilePlatform == "Windows":
+			env.Append(CPPDEFINES=['_PTW32_STATIC_LIB'])
+		else:
+			env.Append(CPPDEFINES=['PTW32_STATIC_LIB'])
 		if msvc:
 			env.Append(CPPDEFINES=['ZLIB_WINAPI'])
 		else:
diff --git a/src/common/tpt-thread.h b/src/common/tpt-thread.h
index 9299f68a6..276ddd070 100644
--- a/src/common/tpt-thread.h
+++ b/src/common/tpt-thread.h
@@ -17,8 +17,8 @@
 #undef GetUserName
 
 // Fix deprecation warnings with recent pthread versions on Windows
-#ifdef _PTW32_STATIC_LIB
-#if PTW32_VERSION =< 2, 8, 0, 0
+#if defined(_PTW32_STATIC_LIB) && defined(WIN)
+#if PTW32_VERSION <= 2, 8, 0, 0
 #define PTW32_STATIC_LIB
 #endif
 #endif