[gedit] main: simplify preprocessor commands with #elif

[Sébastien Wilmet <swilmet src gnome org>]

commit d5319635421b6533b0d864664efdf63796de773c
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Tue Nov 12 15:49:45 2019 +0100

    main: simplify preprocessor commands with #elif

 gedit/gedit.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)
---
diff --git a/gedit/gedit.c b/gedit/gedit.c
index caa95505a..c84990a22 100644
--- a/gedit/gedit.c
+++ b/gedit/gedit.c
@@ -23,14 +23,13 @@
 #endif
 
 #include "gedit-app.h"
-#ifdef OS_OSX
-#include "gedit-app-osx.h"
-#else
-#ifdef G_OS_WIN32
-#include "gedit-app-win32.h"
+
+#if defined OS_OSX
+#  include "gedit-app-osx.h"
+#elif defined G_OS_WIN32
+#  include "gedit-app-win32.h"
 #else
-#include "gedit-app-x11.h"
-#endif
+#  include "gedit-app-x11.h"
 #endif
 
 #include <glib.h>
@@ -100,7 +99,7 @@ gedit_w32_unload_private_dll (void)
                libgedit_dll = NULL;
        }
 }
-#endif
+#endif /* G_OS_WIN32 */
 
 int
 main (int argc, char *argv[])
@@ -110,10 +109,9 @@ main (int argc, char *argv[])
        gint status;
        const gchar *dir;
 
-#ifdef OS_OSX
+#if defined OS_OSX
        type = GEDIT_TYPE_APP_OSX;
-#else
-#ifdef G_OS_WIN32
+#elif defined G_OS_WIN32
        if (!gedit_w32_load_private_dll ())
        {
                return 1;
@@ -122,7 +120,6 @@ main (int argc, char *argv[])
        type = GEDIT_TYPE_APP_WIN32;
 #else
        type = GEDIT_TYPE_APP_X11;
-#endif
 #endif
 
        /* NOTE: we should not make any calls to the gedit api before the