diff --git a/freeglut/freeglut/src/freeglut_init.c b/freeglut/freeglut/src/freeglut_init.c
index b419025..c9bd04d 100644
--- a/freeglut/freeglut/src/freeglut_init.c
+++ b/freeglut/freeglut/src/freeglut_init.c
@@ -854,7 +854,7 @@ void FGAPIENTRY glutInit( int* pargc, char** argv )
     }
 }
 
-#ifdef TARGET_HOST_MS_WINDOWS
+#if TARGET_HOST_MS_WINDOWS
 void (__cdecl *__glutExitFunc)( int return_value ) = NULL;
 
 void FGAPIENTRY __glutInitWithExit( int *pargc, char **argv, void (__cdecl *exit_function)(int) )
diff --git a/freeglut/freeglut/src/freeglut_internal.h b/freeglut/freeglut/src/freeglut_internal.h
index 121df1a..cb294aa 100644
--- a/freeglut/freeglut/src/freeglut_internal.h
+++ b/freeglut/freeglut/src/freeglut_internal.h
@@ -933,7 +933,7 @@ int fgHintPresent(Window window, Atom property, Atom hint);
 
 SFG_Proc fghGetProcAddress( const char *procName );
 
-#ifdef TARGET_HOST_MS_WINDOWS
+#if TARGET_HOST_MS_WINDOWS
 extern void (__cdecl *__glutExitFunc)( int return_value );
 #endif
 
diff --git a/freeglut/freeglut/src/freeglut_menu.c b/freeglut/freeglut/src/freeglut_menu.c
index dccc4dc..ea5837e 100644
--- a/freeglut/freeglut/src/freeglut_menu.c
+++ b/freeglut/freeglut/src/freeglut_menu.c
@@ -779,7 +779,7 @@ int FGAPIENTRY glutCreateMenu( void(* callback)( int ) )
     return fgCreateMenu( callback )->ID;
 }
 
-#ifdef TARGET_HOST_MS_WINDOWS
+#if TARGET_HOST_MS_WINDOWS
 int FGAPIENTRY __glutCreateMenuWithExit( void(* callback)( int ), void (__cdecl *exit_function)(int) )
 {
   __glutExitFunc = exit_function;
diff --git a/freeglut/freeglut/src/freeglut_window.c b/freeglut/freeglut/src/freeglut_window.c
index 6366d0e..04e4b0b 100644
--- a/freeglut/freeglut/src/freeglut_window.c
+++ b/freeglut/freeglut/src/freeglut_window.c
@@ -1093,7 +1093,7 @@ int FGAPIENTRY glutCreateWindow( const char* title )
                            GL_FALSE, GL_FALSE )->ID;
 }
 
-#ifdef TARGET_HOST_MS_WINDOWS
+#if TARGET_HOST_MS_WINDOWS
 int FGAPIENTRY __glutCreateWindowWithExit( const char *title, void (__cdecl *exit_function)(int) )
 {
   __glutExitFunc = exit_function;