From 2a6afac9055bc2cac29678b9e2ed0344cb32c39e Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Thu, 3 Dec 2015 08:30:04 +0100
Subject: [PATCH] gnu: gtk+-2: Add patch to support GUIX_GTK2_PATH.
* gnu/packages/patches/gtk2-respect-GUIX_GTK2_PATH: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/gtk.scm (gtk+-2) [source]: Add patch.
[native-search-paths]: Add search path for GUIX_GTK2_PATH.
---
gnu-system.am | 1 +
gnu/packages/gtk.scm | 9 +++-
.../patches/gtk2-respect-GUIX_GTK2_PATH.patch | 46 +++++++++++++++++++
3 files changed, 54 insertions(+), 2 deletions(-)
create mode 100644 gnu/packages/patches/gtk2-respect-GUIX_GTK2_PATH.patch
diff --git a/gnu-system.am b/gnu-system.am
index 6626cd9d4ba..2c62cc59110 100644
--- a/gnu-system.am
+++ b/gnu-system.am
@@ -506,6 +506,7 @@ dist_patch_DATA = \
gnu/packages/patches/guile-present-coding.patch \
gnu/packages/patches/guile-relocatable.patch \
gnu/packages/patches/guile-rsvg-pkgconfig.patch \
+ gnu/packages/patches/gtk2-respect-GUIX_GTK2_PATH.patch \
gnu/packages/patches/gtkglext-disable-disable-deprecated.patch \
gnu/packages/patches/hop-bigloo-4.0b.patch \
gnu/packages/patches/hop-linker-flags.patch \
diff --git a/gnu/packages/gtk.scm b/gnu/packages/gtk.scm
index f85ea1970ae..d2257825e8e 100644
--- a/gnu/packages/gtk.scm
+++ b/gnu/packages/gtk.scm
@@ -522,7 +522,8 @@ (define-public gtk+-2
name "-" version ".tar.xz"))
(sha256
(base32
- "0mj6xn40py9r9lvzg633fal81xfwfm89d9mvz7jk4lmwk0g49imj"))))
+ "0mj6xn40py9r9lvzg633fal81xfwfm89d9mvz7jk4lmwk0g49imj"))
+ (patches (list (search-patch "gtk2-respect-GUIX_GTK2_PATH.patch")))))
(build-system gnu-build-system)
(outputs '("out" "doc"))
(propagated-inputs
@@ -557,7 +558,11 @@ (define-public gtk+-2
;; FIXME: re-enable tests requiring an X server
(substitute* "gtk/Makefile.in"
(("SUBDIRS = theme-bits . tests") "SUBDIRS = theme-bits .")))
- %standard-phases)))
+ %standard-phases)))
+ (native-search-paths
+ (list (search-path-specification
+ (variable "GUIX_GTK2_PATH")
+ (files '("lib/gtk-2.0")))))
(synopsis "Cross-platform toolkit for creating graphical user interfaces")
(description
"GTK+, or the GIMP Toolkit, is a multi-platform toolkit for creating
diff --git a/gnu/packages/patches/gtk2-respect-GUIX_GTK2_PATH.patch b/gnu/packages/patches/gtk2-respect-GUIX_GTK2_PATH.patch
new file mode 100644
index 00000000000..93a8ddc2429
--- /dev/null
+++ b/gnu/packages/patches/gtk2-respect-GUIX_GTK2_PATH.patch
@@ -0,0 +1,46 @@
+This patch makes GTK+ look for additional modules in a list of directories
+specified by the environment variable "GUIX_GTK2_PATH". This can be used
+instead of "GTK_PATH" to make GTK+ find modules that are incompatible with
+other major versions of GTK+.
+
+--- a/gtk/gtkmodules.c 2014-09-29 22:02:17.000000000 +0200
++++ b/gtk/gtkmodules.c 2015-12-02 18:41:53.306396938 +0100
+@@ -55,6 +55,7 @@
+ get_module_path (void)
+ {
+ const gchar *module_path_env;
++ const gchar *module_guix_gtk2_path_env;
+ const gchar *exe_prefix;
+ const gchar *home_dir;
+ gchar *home_gtk_dir = NULL;
+@@ -70,6 +71,7 @@
+ home_gtk_dir = g_build_filename (home_dir, ".gtk-2.0", NULL);
+
+ module_path_env = g_getenv ("GTK_PATH");
++ module_guix_gtk2_path_env = g_getenv ("GUIX_GTK2_PATH");
+ exe_prefix = g_getenv ("GTK_EXE_PREFIX");
+
+ if (exe_prefix)
+@@ -77,9 +79,21 @@
+ else
+ default_dir = g_build_filename (GTK_LIBDIR, "gtk-2.0", NULL);
+
+- if (module_path_env && home_gtk_dir)
++ if (module_guix_gtk2_path_env && module_path_env && home_gtk_dir)
++ module_path = g_build_path (G_SEARCHPATH_SEPARATOR_S,
++ module_guix_gtk2_path_env, module_path_env, home_gtk_dir, default_dir, NULL);
++ else if (module_guix_gtk2_path_env && home_gtk_dir)
++ module_path = g_build_path (G_SEARCHPATH_SEPARATOR_S,
++ module_guix_gtk2_path_env, home_gtk_dir, default_dir, NULL);
++ else if (module_guix_gtk2_path_env && module_path_env)
++ module_path = g_build_path (G_SEARCHPATH_SEPARATOR_S,
++ module_guix_gtk2_path_env, module_path_env, default_dir, NULL);
++ else if (module_path_env && home_gtk_dir)
+ module_path = g_build_path (G_SEARCHPATH_SEPARATOR_S,
+ module_path_env, home_gtk_dir, default_dir, NULL);
++ else if (module_guix_gtk2_path_env)
++ module_path = g_build_path (G_SEARCHPATH_SEPARATOR_S,
++ module_guix_gtk2_path_env, default_dir, NULL);
+ else if (module_path_env)
+ module_path = g_build_path (G_SEARCHPATH_SEPARATOR_S,
+ module_path_env, default_dir, NULL);
--
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