[glib] glib/goption.c: Fix build on MSVC

[Chun-wei Fan <fanchunwei src gnome org>]

commit c5e989c6d8d13542fcdd47905e98c980d7d7603d
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Thu Jan 23 17:32:50 2014 +0800

    glib/goption.c: Fix build on MSVC
    
    Use #ifdef rather than #if, as MSVC does not like #if <macro> without
    parens, and this is the normal usage in other cases like this.

 glib/goption.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/glib/goption.c b/glib/goption.c
index 137ba31..a7ad7c6 100644
--- a/glib/goption.c
+++ b/glib/goption.c
@@ -1209,7 +1209,7 @@ parse_arg (GOptionContext *context,
       {
         gchar *data;
 
-#if G_OS_WIN32
+#ifdef G_OS_WIN32
         if (!context->strv_mode)
           data = g_locale_to_utf8 (value, -1, NULL, NULL, error);
         else
@@ -1235,7 +1235,7 @@ parse_arg (GOptionContext *context,
       {
         gchar *data;
 
-#if G_OS_WIN32
+#ifdef G_OS_WIN32
         if (!context->strv_mode)
           data = g_locale_to_utf8 (value, -1, NULL, NULL, error);
         else