From 52eff43d3a855090a15a7104a878aebe7b2eb3b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20D=C3=B6singer?= <stefan@codeweavers.com>
Date: Sat, 12 Sep 2009 14:08:53 +0200
Subject: [PATCH 01/25] Check for ms_hook_prologue attribute support, make a first function hookable

---
 configure.ac                |   19 +++++++++++++++++++
 dlls/dinput8/dinput8_main.c |    2 +-
 2 files changed, 20 insertions(+), 1 deletions(-)

diff --git a/configure.ac b/configure.ac
index 813b198..83eef9d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2052,6 +2052,25 @@ case $host_vendor in
   *sun*) WINE_CHECK_DEFINE([__sun__]) ;;
 esac
 
+dnl Check for ms_hook_prologue support
+old_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Werror"
+AC_CACHE_CHECK([for ms_hook_prologue], ac_cv_have_ms_hook_prologue,
+               AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+                    int __attribute__((__ms_hook_prologue__)) test()
+                    {
+                        return 0;
+                    }
+               ]], [[/*empty*/]])],[ac_cv_have_ms_hook_prologue="yes"],[ac_cv_have_ms_hook_prologue="no"]))
+CFLAGS="$old_CFLAGS"
+
+if test "$ac_cv_have_ms_hook_prologue" = "yes"
+then
+    AC_DEFINE(DECLSPEC_HOTPATCH, __attribute__((__ms_hook_prologue__)), ["Define to __attribute__((__ms_hook_prologue__)) if supported"])
+else
+    AC_DEFINE(DECLSPEC_HOTPATCH,, ["Define to __attribute__((__ms_hook_prologue__)) if supported"])
+fi
+
 dnl **** Generate output files ****
 
 AC_SUBST(DEPENDENCIES,["### Dependencies:
diff --git a/dlls/dinput8/dinput8_main.c b/dlls/dinput8/dinput8_main.c
index c855caf..77f7f64 100644
--- a/dlls/dinput8/dinput8_main.c
+++ b/dlls/dinput8/dinput8_main.c
@@ -50,7 +50,7 @@ static void UnlockModule(void)
 /******************************************************************************
  *	DirectInput8Create (DINPUT8.@)
  */
-HRESULT WINAPI DirectInput8Create(HINSTANCE hinst, DWORD dwVersion, REFIID riid, LPVOID *ppDI, LPUNKNOWN punkOuter) {
+HRESULT WINAPI DECLSPEC_HOTPATCH DirectInput8Create(HINSTANCE hinst, DWORD dwVersion, REFIID riid, LPVOID *ppDI, LPUNKNOWN punkOuter) {
     HRESULT hr;
 
     TRACE("hInst (%p), dwVersion: %d, riid (%s), punkOuter (%p))\n", hinst, dwVersion, debugstr_guid(riid), punkOuter);
-- 
1.6.4.4