Add missing includes

glib/gmarkup.c

@@ -35,6 +35,7 @@
 #include "gstring.h"
 #include "gtestutils.h"
 #include "glibintl.h"
+#include "gthread.h"
 
 /**
  * SECTION:markup

glib/gshell.c

@@ -31,6 +31,7 @@
 #include "gstring.h"
 #include "gtestutils.h"
 #include "glibintl.h"
+#include "gthread.h"
 
 /**
  * SECTION:shell

glib/gspawn-win32.c

@@ -47,6 +47,7 @@
 #include "glib.h"
 #include "gprintfint.h"
 #include "glibintl.h"
+#include "gthread.h"
 
 #include <string.h>
 #include <stdlib.h>

glib/gspawn.c

@@ -42,6 +42,7 @@
 #endif /* HAVE_SYS_RESOURCE_H */
 
 #include "gspawn.h"
+#include "gthread.h"
 
 #include "genviron.h"
 #include "gmem.h"

glib/gvariant-parser.c

@@ -33,6 +33,7 @@
 #include "gvariant.h"
 #include "gvarianttype.h"
 #include "gslice.h"
+#include "gthread.h"
 
 /*
  * two-pass algorithm