[mutter] Fix constness warnings

[Florian Müllner <fmuellner src gnome org>]

commit 25a796afc6c10e5ca89310ada694db5a5790f5c6
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Sep 24 01:13:59 2015 +0200

    Fix constness warnings

 src/core/display.c      |    4 +-
 src/core/keybindings.c  |    2 +-
 src/core/mutter.c       |    2 +-
 src/core/prefs.c        |    4 +-
 src/core/screen.c       |    2 +-
 src/core/workspace.c    |    2 +-
 src/tests/test-client.c |    2 +-
 src/tests/test-runner.c |    2 +-
 src/x11/session.c       |   48 +++++++++++++++++++++++-----------------------
 9 files changed, 34 insertions(+), 34 deletions(-)
---
diff --git a/src/core/display.c b/src/core/display.c
index b5174c4..e7afd63 100644
--- a/src/core/display.c
+++ b/src/core/display.c
@@ -547,7 +547,7 @@ meta_display_open (void)
   guint32 timestamp;
 
   /* A list of all atom names, so that we can intern them in one go. */
-  char *atom_names[] = {
+  const char *atom_names[] = {
 #define item(x) #x,
 #include <x11/atomnames.h>
 #undef item
@@ -605,7 +605,7 @@ meta_display_open (void)
   meta_prefs_add_listener (prefs_changed_callback, display);
 
   meta_verbose ("Creating %d atoms\n", (int) G_N_ELEMENTS (atom_names));
-  XInternAtoms (display->xdisplay, atom_names, G_N_ELEMENTS (atom_names),
+  XInternAtoms (display->xdisplay, (char **)atom_names, G_N_ELEMENTS (atom_names),
                 False, atoms);
   {
     int i = 0;
diff --git a/src/core/keybindings.c b/src/core/keybindings.c
index 08d77ae..ddbab70 100644
--- a/src/core/keybindings.c
+++ b/src/core/keybindings.c
@@ -188,7 +188,7 @@ reload_modmap (MetaKeyBindingManager *keys)
 
   /* Modifiers to find. */
   struct {
-    char *name;
+    const char *name;
     xkb_mod_mask_t *mask_p;
   } mods[] = {
     { "ScrollLock", &scroll_lock_mask },
diff --git a/src/core/mutter.c b/src/core/mutter.c
index c03e991..c22cb02 100644
--- a/src/core/mutter.c
+++ b/src/core/mutter.c
@@ -44,7 +44,7 @@ print_version (const gchar    *option_name,
   exit (0);
 }
 
-static gchar *plugin = "default";
+static const char *plugin = "default";
 
 GOptionEntry mutter_options[] = {
   {
diff --git a/src/core/prefs.c b/src/core/prefs.c
index 43828fc..2da8da3 100644
--- a/src/core/prefs.c
+++ b/src/core/prefs.c
@@ -161,8 +161,8 @@ typedef struct
 
 typedef struct
 {
-  char *key;
-  char *schema;
+  const char *key;
+  const char *schema;
   MetaPreference pref;
 } MetaBasePreference;
 
diff --git a/src/core/screen.c b/src/core/screen.c
index d2f30cc..19f7db5 100644
--- a/src/core/screen.c
+++ b/src/core/screen.c
@@ -2100,7 +2100,7 @@ meta_screen_queue_workarea_recalc (MetaScreen *screen)
 
 
 #ifdef WITH_VERBOSE_MODE
-static char *
+static const char *
 meta_screen_corner_to_string (MetaScreenCorner corner)
 {
   switch (corner)
diff --git a/src/core/workspace.c b/src/core/workspace.c
index f275c00..cfac7dc 100644
--- a/src/core/workspace.c
+++ b/src/core/workspace.c
@@ -1055,7 +1055,7 @@ meta_workspace_get_onmonitor_region (MetaWorkspace *workspace,
 }
 
 #ifdef WITH_VERBOSE_MODE
-static char *
+static const char *
 meta_motion_direction_to_string (MetaMotionDirection direction)
 {
   switch (direction)
diff --git a/src/tests/test-client.c b/src/tests/test-client.c
index 35f675d..4c4480c 100644
--- a/src/tests/test-client.c
+++ b/src/tests/test-client.c
@@ -25,7 +25,7 @@
 #include <string.h>
 #include <X11/extensions/sync.h>
 
-char *client_id = "0";
+const char *client_id = "0";
 static gboolean wayland;
 GHashTable *windows;
 
diff --git a/src/tests/test-runner.c b/src/tests/test-runner.c
index 7405c88..c395d92 100644
--- a/src/tests/test-runner.c
+++ b/src/tests/test-runner.c
@@ -1120,7 +1120,7 @@ main (int argc, char **argv)
 
   /* Then initalize mutter with a different set of arguments */
 
-  char *fake_args[] = { NULL, "--wayland" };
+  char *fake_args[] = { NULL, (char *)"--wayland" };
   fake_args[0] = argv[0];
   char **fake_argv = fake_args;
   int fake_argc = 2;
diff --git a/src/x11/session.c b/src/x11/session.c
index d9c7b9d..6f68729 100644
--- a/src/x11/session.c
+++ b/src/x11/session.c
@@ -312,8 +312,8 @@ meta_session_init (const char *previous_client_id,
 
     prgname = g_get_prgname ();
 
-    prop1.name = SmProgram;
-    prop1.type = SmARRAY8;
+    prop1.name = (char *)SmProgram;
+    prop1.type = (char *)SmARRAY8;
     prop1.num_vals = 1;
     prop1.vals = &prop1val;
     prop1val.value = (char *)prgname;
@@ -322,38 +322,38 @@ meta_session_init (const char *previous_client_id,
     /* twm sets getuid() for this, but the SM spec plainly
      * says pw_name, twm is on crack
      */
-    prop2.name = SmUserID;
-    prop2.type = SmARRAY8;
+    prop2.name = (char *)SmUserID;
+    prop2.type = (char *)SmARRAY8;
     prop2.num_vals = 1;
     prop2.vals = &prop2val;
     prop2val.value = (char*) g_get_user_name ();
     prop2val.length = strlen (prop2val.value);
 
-    prop3.name = SmRestartStyleHint;
-    prop3.type = SmCARD8;
+    prop3.name = (char *)SmRestartStyleHint;
+    prop3.type = (char *)SmCARD8;
     prop3.num_vals = 1;
     prop3.vals = &prop3val;
     prop3val.value = &hint;
     prop3val.length = 1;
 
     sprintf (pid, "%d", getpid ());
-    prop4.name = SmProcessID;
-    prop4.type = SmARRAY8;
+    prop4.name = (char *)SmProcessID;
+    prop4.type = (char *)SmARRAY8;
     prop4.num_vals = 1;
     prop4.vals = &prop4val;
     prop4val.value = pid;
     prop4val.length = strlen (prop4val.value);
 
     /* Always start in home directory */
-    prop5.name = SmCurrentDirectory;
-    prop5.type = SmARRAY8;
+    prop5.name = (char *)SmCurrentDirectory;
+    prop5.type = (char *)SmARRAY8;
     prop5.num_vals = 1;
     prop5.vals = &prop5val;
     prop5val.value = (char*) g_get_home_dir ();
     prop5val.length = strlen (prop5val.value);
 
-    prop6.name = "_GSM_Priority";
-    prop6.type = SmCARD8;
+    prop6.name = (char *)"_GSM_Priority";
+    prop6.type = (char *)SmCARD8;
     prop6.num_vals = 1;
     prop6.vals = &prop6val;
     prop6val.value = &priority;
@@ -588,15 +588,15 @@ set_clone_restart_commands (void)
 
   /* Restart (use same client ID) */
 
-  prop1.name = SmRestartCommand;
-  prop1.type = SmLISTofARRAY8;
+  prop1.name = (char *)SmRestartCommand;
+  prop1.type = (char *)SmLISTofARRAY8;
 
   g_return_if_fail (client_id);
 
   i = 0;
   restartv[i] = (char *)prgname;
   ++i;
-  restartv[i] = "--sm-client-id";
+  restartv[i] = (char *)"--sm-client-id";
   ++i;
   restartv[i] = client_id;
   ++i;
@@ -619,8 +619,8 @@ set_clone_restart_commands (void)
   ++i;
   clonev[i] = NULL;
 
-  prop2.name = SmCloneCommand;
-  prop2.type = SmLISTofARRAY8;
+  prop2.name = (char *)SmCloneCommand;
+  prop2.type = (char *)SmLISTofARRAY8;
 
   prop2.vals = g_new (SmPropValue, i);
   i = 0;
@@ -635,16 +635,16 @@ set_clone_restart_commands (void)
   /* Discard */
 
   i = 0;
-  discardv[i] = "rm";
+  discardv[i] = (char *)"rm";
   ++i;
-  discardv[i] = "-f";
+  discardv[i] = (char *)"-f";
   ++i;
   discardv[i] = (char*) full_save_file ();
   ++i;
   discardv[i] = NULL;
 
-  prop3.name = SmDiscardCommand;
-  prop3.type = SmLISTofARRAY8;
+  prop3.name = (char *)SmDiscardCommand;
+  prop3.type = (char *)SmLISTofARRAY8;
 
   prop3.vals = g_new (SmPropValue, i);
   i = 0;
@@ -1792,8 +1792,8 @@ warn_about_lame_clients_and_finish_interact (gboolean shutdown)
       return;
     }
 
-  columns = g_slist_prepend (columns, "Window");
-  columns = g_slist_prepend (columns, "Class");
+  columns = g_slist_prepend (columns, (gpointer)"Window");
+  columns = g_slist_prepend (columns, (gpointer)"Class");
 
   lame = g_slist_sort (lame, (GCompareFunc) windows_cmp_by_title);
 
@@ -1803,7 +1803,7 @@ warn_about_lame_clients_and_finish_interact (gboolean shutdown)
       MetaWindow *w = tmp->data;
 
       lame_details = g_slist_prepend (lame_details,
-                                      w->res_class ? w->res_class : "");
+                                      w->res_class ? w->res_class : (gpointer)"");
       lame_details = g_slist_prepend (lame_details,
                                       w->title);