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From: "Matt Turner" <mattst88@gentoo.org>
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Subject: [gentoo-commits] repo/gentoo:master commit in: dev-libs/gjs/files/
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X-VCS-Files: dev-libs/gjs/files/gjs-1.64.5-gcc-11-support.patch
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Date: Sat, 28 May 2022 02:17:31 +0000 (UTC)
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commit: d8566b90d226a1c086bfb359fbdf458b0fc196dd
Author: Matt Turner <mattst88 <AT> gentoo <DOT> org>
AuthorDate: Sat May 28 02:14:20 2022 +0000
Commit: Matt Turner <mattst88 <AT> gentoo <DOT> org>
CommitDate: Sat May 28 02:17:25 2022 +0000
URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=d8566b90
dev-libs/gjs: Add missing GCC-11 support patch
Signed-off-by: Matt Turner <mattst88 <AT> gentoo.org>
dev-libs/gjs/files/gjs-1.64.5-gcc-11-support.patch | 129 +++++++++++++++++++++
1 file changed, 129 insertions(+)
diff --git a/dev-libs/gjs/files/gjs-1.64.5-gcc-11-support.patch b/dev-libs/gjs/files/gjs-1.64.5-gcc-11-support.patch
new file mode 100644
index 000000000000..3808b6d7862b
--- /dev/null
+++ b/dev-libs/gjs/files/gjs-1.64.5-gcc-11-support.patch
@@ -0,0 +1,129 @@
+From 757d42d87e8a3b52a0782bc9cbd33c788ecc34e4 Mon Sep 17 00:00:00 2001
+From: Philip Chimento <philip.chimento@gmail.com>
+Date: Mon, 15 Feb 2021 20:40:43 -0800
+Subject: [PATCH 1/2] GjsPrivate: Remove volatile from g_once_init_enter flag
+
+On platforms where g_once_init_enter() is defined to use C11 atomic
+builtins, passing a pointer to a volatile value will generate a warning
+in GCC 11 and later.
+
+More info about the GCC change:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95378
+https://gcc.gnu.org/pipermail/gcc-patches/2020-June/548283.html
+
+More info about changes made in GLib:
+https://gitlab.gnome.org/GNOME/glib/-/issues/600
+
+See: #376
+(cherry picked from commit 989ac9ac723dc1c8b6b8961292f236c558f5c0f0)
+---
+ libgjs-private/gjs-util.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/libgjs-private/gjs-util.c b/libgjs-private/gjs-util.c
+index 20a732d5..f7f3189a 100644
+--- a/libgjs-private/gjs-util.c
++++ b/libgjs-private/gjs-util.c
+@@ -57,8 +57,8 @@ gjs_format_int_alternative_output(int n)
+ GType
+ gjs_locale_category_get_type(void)
+ {
+- static volatile size_t g_define_type_id__volatile = 0;
+- if (g_once_init_enter(&g_define_type_id__volatile)) {
++ static size_t gjs_locale_category_get_type = 0;
++ if (g_once_init_enter(&gjs_locale_category_get_type)) {
+ static const GEnumValue v[] = {
+ { GJS_LOCALE_CATEGORY_ALL, "GJS_LOCALE_CATEGORY_ALL", "all" },
+ { GJS_LOCALE_CATEGORY_COLLATE, "GJS_LOCALE_CATEGORY_COLLATE", "collate" },
+@@ -72,9 +72,9 @@ gjs_locale_category_get_type(void)
+ GType g_define_type_id =
+ g_enum_register_static(g_intern_static_string("GjsLocaleCategory"), v);
+
+- g_once_init_leave(&g_define_type_id__volatile, g_define_type_id);
++ g_once_init_leave(&gjs_locale_category_get_type, g_define_type_id);
+ }
+- return g_define_type_id__volatile;
++ return gjs_locale_category_get_type;
+ }
+
+ /**
+--
+2.35.1
+
+From dade6ee66e07a1865dc380060abe921eaeeae763 Mon Sep 17 00:00:00 2001
+From: Philip Chimento <philip.chimento@gmail.com>
+Date: Sun, 14 Feb 2021 12:20:09 -0800
+Subject: [PATCH 2/2] maint: Avoid g_once_init_enter error in GCC 11
+
+On platforms where g_once_init_enter() is defined to use C11 atomic
+builtins, passing a pointer to a volatile value is an error in GCC 11 and
+later, in C++.
+
+More info about the GCC change:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95378
+https://gcc.gnu.org/pipermail/gcc-patches/2020-June/548283.html
+
+However, it's my understanding that in modern C++ there is no longer a
+need to guard the initialization of these variables. Since C++11, static
+local variables in a function are guaranteed to be initialized only once,
+the first time control passes through that function. So we can just remove
+the g_once_init_enter guard.
+
+More info:
+https://en.cppreference.com/w/cpp/language/storage_duration#Static_local_variables
+
+Stack Overflow answers with quotations from the C++ standard:
+https://stackoverflow.com/a/58804/172999
+https://stackoverflow.com/a/8102145/172999
+
+Closes: #376
+(cherry picked from commit f02eaf3a9d3465915eb849428c2d9615e2184a4c)
+---
+ gjs/error-types.cpp | 32 +++++++++++++-------------------
+ 1 file changed, 13 insertions(+), 19 deletions(-)
+
+diff --git a/gjs/error-types.cpp b/gjs/error-types.cpp
+index 86cb8789..5eba61b2 100644
+--- a/gjs/error-types.cpp
++++ b/gjs/error-types.cpp
+@@ -31,24 +31,18 @@ G_DEFINE_QUARK(gjs-js-error-quark, gjs_js_error)
+ // clang-format on
+
+ GType gjs_js_error_get_type(void) {
+- static volatile GType g_type_id;
+-
+- if (g_once_init_enter(&g_type_id)) {
+- static GEnumValue errors[] = {
+- { GJS_JS_ERROR_ERROR, "Error", "error" },
+- { GJS_JS_ERROR_EVAL_ERROR, "EvalError", "eval-error" },
+- { GJS_JS_ERROR_INTERNAL_ERROR, "InternalError", "internal-error" },
+- { GJS_JS_ERROR_RANGE_ERROR, "RangeError", "range-error" },
+- { GJS_JS_ERROR_REFERENCE_ERROR, "ReferenceError", "reference-error" },
+- { GJS_JS_ERROR_STOP_ITERATION, "StopIteration", "stop-iteration" },
+- { GJS_JS_ERROR_SYNTAX_ERROR, "SyntaxError", "syntax-error" },
+- { GJS_JS_ERROR_TYPE_ERROR, "TypeError", "type-error" },
+- { GJS_JS_ERROR_URI_ERROR, "URIError", "uri-error" },
+- { 0, nullptr, nullptr }
+- };
+-
+- g_type_id = g_enum_register_static("GjsJSError", errors);
+- }
+-
++ static const GEnumValue errors[] = {
++ {GJS_JS_ERROR_ERROR, "Error", "error"},
++ {GJS_JS_ERROR_EVAL_ERROR, "EvalError", "eval-error"},
++ {GJS_JS_ERROR_INTERNAL_ERROR, "InternalError", "internal-error"},
++ {GJS_JS_ERROR_RANGE_ERROR, "RangeError", "range-error"},
++ {GJS_JS_ERROR_REFERENCE_ERROR, "ReferenceError", "reference-error"},
++ {GJS_JS_ERROR_STOP_ITERATION, "StopIteration", "stop-iteration"},
++ {GJS_JS_ERROR_SYNTAX_ERROR, "SyntaxError", "syntax-error"},
++ {GJS_JS_ERROR_TYPE_ERROR, "TypeError", "type-error"},
++ {GJS_JS_ERROR_URI_ERROR, "URIError", "uri-error"},
++ {0, nullptr, nullptr}};
++ // Initialization of static local variable guaranteed only once in C++11
++ static GType g_type_id = g_enum_register_static("GjsJSError", errors);
+ return g_type_id;
+ }
+--
+2.35.1
+