gentoo-overlay/dev-libs/glib/files/glib-2.36.4-znodelete.patch

From 196ea5ab614e5357da48acf73a373f103e61ee0b Mon Sep 17 00:00:00 2001
From: Alexandre Rostovtsev <tetromino@gentoo.org>
Date: Mon, 2 Sep 2013 13:59:18 -0400
Subject: [PATCH 4/4] gobject: try to link with -Wl,-z,nodelete

Since the type system does not support reloading its data and assumes
that libgobject remains loaded for the lifetime of the process, we
should link libgobject with a flag indicating that it can't be unloaded.

https://bugzilla.gnome.org/show_bug.cgi?id=707298
---
 configure.ac        | 24 ++++++++++++++++++++++++
 gobject/Makefile.am |  1 +
 2 files changed, 25 insertions(+)

diff --git a/configure.ac b/configure.ac
index 907c534..266c45d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3669,6 +3669,30 @@ fi
 AC_SUBST(GLIB_LINK_FLAGS)
 
 dnl
+dnl Check for -z,nodelete linker flag: the type system assumes that
+dnl libgobject stays loaded for the lifetime of the process
+dnl
+
+AC_ARG_ENABLE([znodelete],
+              [AS_HELP_STRING([--disable-znodelete],
+                              [avoid linking with -z,nodelete])],,
+              [SAVED_LDFLAGS="${LDFLAGS}"
+               AC_MSG_CHECKING([for -z,nodelete linker flag])
+               LDFLAGS=-Wl,-z,nodelete
+               AC_TRY_LINK([], [int main (void) { return 0; }],
+                           AC_MSG_RESULT(yes)
+                           enable_znodelete=yes,
+                           AC_MSG_RESULT(no)
+                           enable_znodelete=no)
+               LDFLAGS="${SAVED_LDFLAGS}"])
+
+if test "x${enable_znodelete}" = "xyes"; then
+  GOBJECT_LINK_FLAGS=-Wl,-z,nodelete
+fi
+
+AC_SUBST(GOBJECT_LINK_FLAGS)
+
+dnl
 dnl Check for -fvisibility=hidden to determine if we can do GNU-style
 dnl visibility attributes for symbol export control
 dnl
diff --git a/gobject/Makefile.am b/gobject/Makefile.am
index 1509616..181ad7d 100644
--- a/gobject/Makefile.am
+++ b/gobject/Makefile.am
@@ -45,6 +45,7 @@ endif
 
 libgobjectincludedir = $(includedir)/glib-2.0/gobject
 libgobject_2_0_la_LDFLAGS = $(GLIB_LINK_FLAGS) \
+  $(GOBJECT_LINK_FLAGS) \
   $(gobject_win32_res_ldflag) \
   -version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) \
   -export-dynamic $(no_undefined)
-- 
1.8.3.2