GNU bug report logs - #50521
[PATCH core-updates-frozen] gnu: gtk+-2: Fix ‘builder’ test

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From: Thiago Jung Bauermann <bauermann <at> kolabnow.com>
To: 50521 <at> debbugs.gnu.org
Cc: Thiago Jung Bauermann <bauermann <at> kolabnow.com>
Subject: [bug#50521] [PATCH core-updates-frozen] gnu: gtk+-2: Fix ‘builder’ test
Date: Sat, 11 Sep 2021 14:07:32 -0300

The signal callbacks in the ‘builder’ testcase have wrong prototypes.
This causes it to fail the “/Builder/Signal Autoconnect” test on
powerpc64le-linux.

Solve the problem by backporting the upstream fix that was applied to
GTK+ 3.0.

* gnu/packages/patches/gtk2-fix-builder-test.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/gtk.scm (gtk+-2): Use it.
---

Hello,

This fixes the build of gtk+-2 on powerpc64le-linux.

Thanks,
Thiago

 gnu/local.mk                                  |  1 +
 gnu/packages/gtk.scm                          |  3 +-
 .../patches/gtk2-fix-builder-test.patch       | 94 +++++++++++++++++++
 3 files changed, 97 insertions(+), 1 deletion(-)
 create mode 100644 gnu/packages/patches/gtk2-fix-builder-test.patch

diff --git a/gnu/local.mk b/gnu/local.mk
index 07e6787642e9..6d19a6332ba0 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1205,6 +1205,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/guile-emacs-fix-configure.patch		\
   %D%/packages/patches/guile-ssh-fix-test-suite.patch		\
   %D%/packages/patches/guile-ssh-read-error.patch		\
+  %D%/packages/patches/gtk2-fix-builder-test.patch		\
   %D%/packages/patches/gtk2-respect-GUIX_GTK2_PATH.patch	\
   %D%/packages/patches/gtk2-respect-GUIX_GTK2_IM_MODULE_FILE.patch \
   %D%/packages/patches/gtk2-theme-paths.patch			\
diff --git a/gnu/packages/gtk.scm b/gnu/packages/gtk.scm
index 24c24d56530f..c7a682b37548 100644
--- a/gnu/packages/gtk.scm
+++ b/gnu/packages/gtk.scm
@@ -847,7 +847,8 @@ is part of the GNOME accessibility project.")
                 "1nn6kks1zyvb5xikr9y2k7r9bwjy1g4b0m0s66532bclymbwfamc"))
               (patches (search-patches "gtk2-respect-GUIX_GTK2_PATH.patch"
                                        "gtk2-respect-GUIX_GTK2_IM_MODULE_FILE.patch"
-                                       "gtk2-theme-paths.patch"))))
+                                       "gtk2-theme-paths.patch"
+                                       "gtk2-fix-builder-test.patch"))))
     (build-system gnu-build-system)
     (outputs '("out" "bin" "doc"))
     (propagated-inputs
diff --git a/gnu/packages/patches/gtk2-fix-builder-test.patch b/gnu/packages/patches/gtk2-fix-builder-test.patch
new file mode 100644
index 000000000000..8c41e596fe95
--- /dev/null
+++ b/gnu/packages/patches/gtk2-fix-builder-test.patch
@@ -0,0 +1,94 @@
+From e45e11238036e06c8fe78bea1691b256ca41837b Mon Sep 17 00:00:00 2001
+From: Steve Langasek <steve.langasek <at> ubuntu.com>
+Date: Tue, 7 Jan 2014 13:55:28 +0100
+Subject: [PATCH] fix prototypes of signal callbacks in the test suite
+
+The signal callbacks are defined to take pointers as their arguments, but the
+callbacks found in testsuite/gtk/builder.c are passing a GParamSpec by value
+as the second argument.  This confuses and angers the compiler on ppc64el,
+resulting in segfaults after return from the function due to stack-smashing
+by the (completely-unused) argument.
+
+https://bugzilla.gnome.org/show_bug.cgi?id=721700
+---
+
+This is a backport to v2.24.33 of upstream commit:
+
+https://gitlab.gnome.org/GNOME/gtk/-/commit/256561db2f0b34e01047f8882b3e0cb8c6d9dbab
+
+ gtk/tests/builder.c | 16 ++++++++--------
+ 1 file changed, 8 insertions(+), 8 deletions(-)
+
+diff --git a/gtk/tests/builder.c b/gtk/tests/builder.c
+index 8529dacc2f6e..23d5096062fa 100644
+--- a/gtk/tests/builder.c
++++ b/gtk/tests/builder.c
+@@ -132,7 +132,7 @@ static int object = 0;
+ static int object_after = 0;
+ 
+ void /* exported for GtkBuilder */
+-signal_normal (GtkWindow *window, GParamSpec spec)
++signal_normal (GtkWindow *window, GParamSpec *spec)
+ {
+   g_assert (GTK_IS_WINDOW (window));
+   g_assert (normal == 0);
+@@ -142,7 +142,7 @@ signal_normal (GtkWindow *window, GParamSpec spec)
+ }
+ 
+ void /* exported for GtkBuilder */
+-signal_after (GtkWindow *window, GParamSpec spec)
++signal_after (GtkWindow *window, GParamSpec *spec)
+ {
+   g_assert (GTK_IS_WINDOW (window));
+   g_assert (normal == 1);
+@@ -152,7 +152,7 @@ signal_after (GtkWindow *window, GParamSpec spec)
+ }
+ 
+ void /* exported for GtkBuilder */
+-signal_object (GtkButton *button, GParamSpec spec)
++signal_object (GtkButton *button, GParamSpec *spec)
+ {
+   g_assert (GTK_IS_BUTTON (button));
+   g_assert (object == 0);
+@@ -162,7 +162,7 @@ signal_object (GtkButton *button, GParamSpec spec)
+ }
+ 
+ void /* exported for GtkBuilder */
+-signal_object_after (GtkButton *button, GParamSpec spec)
++signal_object_after (GtkButton *button, GParamSpec *spec)
+ {
+   g_assert (GTK_IS_BUTTON (button));
+   g_assert (object == 1);
+@@ -172,28 +172,28 @@ signal_object_after (GtkButton *button, GParamSpec spec)
+ }
+ 
+ void /* exported for GtkBuilder */
+-signal_first (GtkButton *button, GParamSpec spec)
++signal_first (GtkButton *button, GParamSpec *spec)
+ {
+   g_assert (normal == 0);
+   normal = 10;
+ }
+ 
+ void /* exported for GtkBuilder */
+-signal_second (GtkButton *button, GParamSpec spec)
++signal_second (GtkButton *button, GParamSpec *spec)
+ {
+   g_assert (normal == 10);
+   normal = 20;
+ }
+ 
+ void /* exported for GtkBuilder */
+-signal_extra (GtkButton *button, GParamSpec spec)
++signal_extra (GtkButton *button, GParamSpec *spec)
+ {
+   g_assert (normal == 20);
+   normal = 30;
+ }
+ 
+ void /* exported for GtkBuilder */
+-signal_extra2 (GtkButton *button, GParamSpec spec)
++signal_extra2 (GtkButton *button, GParamSpec *spec)
+ {
+   g_assert (normal == 30);
+   normal = 40;

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