Index: glib-2.48.0/glib/gconstructor.h
===================================================================
--- glib-2.48.0.orig/glib/gconstructor.h	2016-03-15 13:55:11.792340683 +0000
+++ glib-2.48.0/glib/gconstructor.h	2016-03-15 13:55:58.186843156 +0000
@@ -85,6 +85,25 @@
 #define G_DEFINE_DESTRUCTOR(_func) \
   static void _func(void);
 
+#elif defined(__xlc__)
+
+#define G_HAS_CONSTRUCTORS 1
+
+#define G_DEFINE_CONSTRUCTOR_NEEDS_PRAGMA 1
+#define G_DEFINE_DESTRUCTOR_NEEDS_PRAGMA 1
+
+#define G_DEFINE_CONSTRUCTOR_PRAGMA_ARGS(_func) \
+  init(_func)
+#define G_DEFINE_CONSTRUCTOR(_func) \
+  static void _func(void); \
+  void _func ## _wrapper(void) { _func(); }
+
+#define G_DEFINE_DESTRUCTOR_PRAGMA_ARGS(_func) \
+  fini(_func)
+#define G_DEFINE_DESTRUCTOR(_func) \
+  static void _func(void); \
+  void _func ## _wrapper(void) { _func(); }
+
 #else
 
 /* constructors not supported for this compiler */
Index: configure.ac
===================================================================
--- glib-2.48.0.orig/configure.ac	2016-03-15 13:55:51.412476637 +0000
+++ glib-2.48.0/configure.ac	2016-03-15 13:56:03.523900794 +0000
@@ -768,6 +768,20 @@
 AC_MSG_RESULT($g_have_sunstudio_visibility)
 AM_CONDITIONAL(HAVE_SUNSTUDIO_VISIBILITY, [test x$g_have_sunstudio_visibility = xyes])
 
+AC_MSG_CHECKING([whether or not on AIX])
+case "$host" in
+  *-*-aix*)
+    AIX_LD_CONSTRUCTOR_FLAGS_GLIB="-Wl,-binitfini:glib_init_ctor_wrapper"
+    AIX_LD_CONSTRUCTOR_FLAGS_GOBJECT="-Wl,-binitfini:gobject_init_ctor_wrapper"
+    AC_MSG_RESULT(yes)
+    ;;
+  *)
+    AC_MSG_RESULT(no)
+    ;;
+esac
+AC_SUBST(AIX_LD_CONSTRUCTOR_FLAGS_GLIB)
+AC_SUBST(AIX_LD_CONSTRUCTOR_FLAGS_GOBJECT)
+
 # check for bytesex stuff
 AC_C_BIGENDIAN
 if test x$ac_cv_c_bigendian = xuniversal ; then
Index: glib/Makefile.am
===================================================================
--- glib-2.48.0.orig/glib/Makefile.am	2016-03-15 13:55:22.940308250 +0000
+++ glib-2.48.0/glib/Makefile.am	2016-03-15 13:55:58.196103784 +0000
@@ -359,7 +359,8 @@
 libglib_2_0_la_LDFLAGS = $(GLIB_LINK_FLAGS) \
 	 $(glib_win32_res_ldflag) \
 	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) \
-	-export-dynamic $(no_undefined)
+	-export-dynamic $(no_undefined) \
+	$(AIX_LD_CONSTRUCTOR_FLAGS_GLIB)
 
 INSTALL_PROGS=
 
Index: gobject/Makefile.am
===================================================================
--- glib-2.48.0.orig/gobject/Makefile.am	2016-03-15 13:55:11.781514008 +0000
+++ glib-2.48.0/gobject/Makefile.am	2016-03-15 13:56:21.232760898 +0000
@@ -47,7 +47,8 @@
 libgobject_2_0_la_LDFLAGS = $(GLIB_LINK_FLAGS) \
   $(gobject_win32_res_ldflag) \
   -version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) \
-  -export-dynamic $(no_undefined)
+  -export-dynamic $(no_undefined) \
+  $(AIX_LD_CONSTRUCTOR_FLAGS_GOBJECT)
 
 libgobject_2_0_la_CFLAGS = $(AM_CFLAGS) $(LIBFFI_CFLAGS) $(GLIB_HIDDEN_VISIBILITY_CFLAGS)