diff --git a/src/gui_w32.c b/src/gui_w32.c
index 19f4d65..78db43e 100644
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -247,6 +247,7 @@
 # define CONST
 # define FAR
 # define NEAR
+# undef _cdecl
 # define _cdecl
 typedef int BOOL;
 typedef int BYTE;
@@ -288,6 +289,7 @@
 typedef int LPNMHDR;
 typedef int LONG;
 typedef int WNDPROC;
+typedef int UINT_PTR;
 #endif
 
 #ifndef GET_X_LPARAM
@@ -3451,7 +3453,7 @@
     set_window_title(s_hwnd, (title == NULL ? "VIM" : (char *)title));
 }
 
-#ifdef FEAT_MOUSESHAPE
+#if defined(FEAT_MOUSESHAPE) || defined(PROTO)
 /* Table for shape IDCs.  Keep in sync with the mshape_names[] table in
  * misc2.c! */
 static LPCSTR mshape_idcs[] =
@@ -3514,7 +3516,7 @@
 }
 #endif
 
-#ifdef FEAT_BROWSE
+#if defined(FEAT_BROWSE) || defined(PROTO)
 /*
  * The file browser exists in two versions: with "W" uses wide characters,
  * without "W" the current codepage.  When FEAT_MBYTE is defined and on