gobject-introspection: relocate typelib repository for native builds

gobject-introspection hard-codes the install path in the search path
for the typelib repository, pretty much the same way glib behaves for
the gio modules directory. Like for glib, this causes problems when
gobject-introspection-native is restored from sstate with a different
build directory.

Based on the glib fix by Ross Burton <ross.burton@intel.com>.

Signed-off-by: Sascha Silbe <x-yo17@se-silbe.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 66 insertions, 0 deletions

diff --git a/meta/recipes-gnome/gobject-introspection/gobject-introspection/0001-Relocate-the-repository-directory-for-native-builds.patch b/meta/recipes-gnome/gobject-introspection/gobject-introspection/0001-Relocate-the-repository-directory-for-native-builds.patch
new file mode 100644
index 0000000000..644cab929d
--- /dev/null
+++ b/meta/recipes-gnome/gobject-introspection/gobject-introspection/0001-Relocate-the-repository-directory-for-native-builds.patch
@@ -0,0 +1,64 @@
+From 31ef4cce83c1770ea1e816d91b7e258fbf170035 Mon Sep 17 00:00:00 2001
+From: Sascha Silbe <x-yo17@se-silbe.de>
+Date: Fri, 8 Jun 2018 13:55:10 +0200
+Subject: [PATCH] Relocate the repository directory for native builds
+
+Instead of hard-coding GOBJECT_INTROSPECTION_LIBDIR when
+gobject-introspection is built, use dladdr() to determine where
+GOBJECT_INTROSPECTION_LIBDIR is and use that path to calculate the
+repository directory.
+
+This fixes gobject-introspection-native accessing paths across build
+directories (e.g. if the build directories use the same shared state
+cache or sstate mirror).
+
+Upstream-Status: Inappropriate
+Signed-off-by: Sascha Silbe <x-yo17@se-silbe.de>
+---
+ girepository/girepository.c | 15 +++++++++++++--
+ 1 file changed, 13 insertions(+), 2 deletions(-)
+
+diff --git a/girepository/girepository.c b/girepository/girepository.c
+index 10282c72..60c45104 100644
+--- a/girepository/girepository.c
++++ b/girepository/girepository.c
+@@ -21,6 +21,8 @@
+  * Boston, MA 02111-1307, USA.
+  */
+ 
++#define _GNU_SOURCE
++
+ #include "config.h"
+ 
+ #include <stdio.h>
+@@ -34,6 +36,8 @@
+ #include "gitypelib-internal.h"
+ #include "girepository-private.h"
+ 
++#include <dlfcn.h>
++
+ /**
+  * SECTION:girepository
+  * @short_description: GObject Introspection repository manager
+@@ -191,9 +195,16 @@ init_globals (void)
+           g_free (custom_dirs);
+         }
+ 
+-      libdir = GOBJECT_INTROSPECTION_LIBDIR;
++      Dl_info gi_lib_info;
+ 
+-      typelib_dir = g_build_filename (libdir, "girepository-1.0", NULL);
++      if (dladdr (g_irepository_get_default, &gi_lib_info)) {
++        char *libdir = g_path_get_dirname (gi_lib_info.dli_fname);
++        typelib_dir = g_build_filename (libdir, "girepository-1.0", NULL);
++        g_free (libdir);
++      } else {
++        libdir = GOBJECT_INTROSPECTION_LIBDIR;
++        typelib_dir = g_build_filename (libdir, "girepository-1.0", NULL);
++      }
+ 
+       search_path = g_slist_prepend (search_path, typelib_dir);
+ 
+-- 
+2.11.0
+
diff --git a/meta/recipes-gnome/gobject-introspection/gobject-introspection_1.56.1.bb b/meta/recipes-gnome/gobject-introspection/gobject-introspection_1.56.1.bb
index 8d05566949..ddec11067b 100644
--- a/meta/recipes-gnome/gobject-introspection/gobject-introspection_1.56.1.bb
+++ b/meta/recipes-gnome/gobject-introspection/gobject-introspection_1.56.1.bb
@@ -20,6 +20,8 @@ SRC_URI = "${GNOME_MIRROR}/${BPN}/${@oe.utils.trim_version("${PV}", 2)}/${BPN}-$
 SRC_URI[md5sum] = "62e5f5685b8d9752fdeaf17c057d53d1"
 SRC_URI[sha256sum] = "5b2875ccff99ff7baab63a34b67f8c920def240e178ff50add809e267d9ea24b"
 
+SRC_URI_append_class-native = " file://0001-Relocate-the-repository-directory-for-native-builds.patch "
+
 inherit autotools pkgconfig gtk-doc python3native qemu gobject-introspection-data upstream-version-is-even
 BBCLASSEXTEND = "native"