[gspell] init: add DllMain() for Windows

[Sébastien Wilmet <swilmet src gnome org>]

commit 5b9f826bc27ecac4e3028c3a639a046680eda6ca
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Feb 28 13:20:14 2016 +0100

    init: add DllMain() for Windows
    
    https://bugzilla.gnome.org/show_bug.cgi?id=761922

 gspell/gspell-init.c |   72 ++++++++++++++++++++++++++++++++++++++------------
 1 files changed, 55 insertions(+), 17 deletions(-)
---
diff --git a/gspell/gspell-init.c b/gspell/gspell-init.c
index b7494d6..c9abd71 100644
--- a/gspell/gspell-init.c
+++ b/gspell/gspell-init.c
@@ -1,7 +1,7 @@
 /*
  * This file is part of gspell, a spell-checking library.
  *
- * Copyright 2015 - Sébastien Wilmet <swilmet gnome org>
+ * Copyright 2015, 2016 - Sébastien Wilmet <swilmet gnome org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -28,16 +28,15 @@
 #include <glib/gi18n-lib.h>
 #include "gconstructor.h"
 
-#ifdef G_HAS_CONSTRUCTORS
+#ifdef G_OS_WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
 
-# ifdef G_DEFINE_CONSTRUCTOR_NEEDS_PRAGMA
-#  pragma G_DEFINE_CONSTRUCTOR_PRAGMA_ARGS(gspell_init)
-# endif
-G_DEFINE_CONSTRUCTOR (gspell_init)
+HMODULE gspell_dll;
+#endif /* G_OS_WIN32 */
 
-# ifdef OS_OSX
-
-# include <Cocoa/Cocoa.h>
+#ifdef OS_OSX
+#include <Cocoa/Cocoa.h>
 
 static gchar *
 dirs_os_x_get_bundle_resource_dir (void)
@@ -87,15 +86,14 @@ dirs_os_x_get_locale_dir (void)
 
        return ret;
 }
-
-# endif /* OS_OSX */
+#endif /* OS_OSX */
 
 static gchar *
 get_locale_dir (void)
 {
        gchar *locale_dir;
 
-# ifdef G_OS_WIN32
+#if defined (G_OS_WIN32)
        gchar *win32_dir;
 
        win32_dir = g_win32_get_package_installation_directory_of_module (NULL);
@@ -103,11 +101,11 @@ get_locale_dir (void)
        locale_dir = g_build_filename (win32_dir, "share", "locale", NULL);
 
        g_free (win32_dir);
-# elif defined (OS_OSX)
+#elif defined (OS_OSX)
        locale_dir = dirs_os_x_get_locale_dir ();
-# else
+#else
        locale_dir = g_build_filename (DATADIR, "locale", NULL);
-# endif
+#endif
 
        return locale_dir;
 }
@@ -124,8 +122,48 @@ gspell_init (void)
        bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
 }
 
+#if defined (G_OS_WIN32)
+
+BOOL WINAPI DllMain (HINSTANCE hinstDLL,
+                    DWORD     fdwReason,
+                    LPVOID    lpvReserved);
+
+BOOL WINAPI
+DllMain (HINSTANCE hinstDLL,
+        DWORD     fdwReason,
+        LPVOID    lpvReserved)
+{
+       switch (fdwReason)
+       {
+               case DLL_PROCESS_ATTACH:
+                       gspell_dll = hinstDLL;
+                       gspell_init ();
+                       break;
+
+               case DLL_THREAD_DETACH:
+               default:
+                       /* do nothing */
+                       break;
+       }
+
+       return TRUE;
+}
+
+#elif defined (G_HAS_CONSTRUCTORS)
+
+#  ifdef G_DEFINE_CONSTRUCTOR_NEEDS_PRAGMA
+#    pragma G_DEFINE_CONSTRUCTOR_PRAGMA_ARGS(gspell_init_ctor)
+#  endif
+G_DEFINE_CONSTRUCTOR (gspell_init_ctor)
+
+static void
+gspell_init_ctor (void)
+{
+       gspell_init ();
+}
+
 #else
-# error Your platform/compiler is missing constructor support
-#endif /* G_HAS_CONSTRUCTORS */
+#  error Your platform/compiler is missing constructor support
+#endif
 
 /* ex:set ts=8 noet: */