Merged update from upstream sources

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Source: https://src.fedoraproject.org/rpms/meson.git#1f043fac7e46a10e87f8ec8f1d8682884f22c85f

meson-gcc11.patch

@@ -0,0 +1,13 @@
+diff --git a/mesonbuild/modules/gnome.py b/mesonbuild/modules/gnome.py
+index 1faa128..3c7f378 100644
+--- a/mesonbuild/modules/gnome.py
++++ b/mesonbuild/modules/gnome.py
+@@ -1417,7 +1417,7 @@ class GnomeModule(ExtensionModule):
+ GType
+ %s@enum_name@_get_type (void)
+ {
+-  static volatile gsize gtype_id = 0;
++  static gsize gtype_id = 0;
+   static const G@Type@Value values[] = {''' % func_prefix
+ 
+         c_file_kwargs['vprod'] = '    { C_@TYPE@(@VALUENAME@), "@VALUENAME@", "@valuenick@" },'

meson.spec

@@ -7,12 +7,13 @@
 
 Name:           meson
 Version:        0.55.3
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        High productivity build system
 
 License:        ASL 2.0
 URL:            https://mesonbuild.com/
 Source:         https://github.com/mesonbuild/meson/releases/download/%{version_no_tilde .}/meson-%{version_no_tilde %{quote:}}.tar.gz
+Patch0:         %{name}-gcc11.patch
 
 BuildArch:      noarch
 
@@ -111,6 +112,9 @@ export MESON_PRINT_TEST_OUTPUT=1
 %{_datadir}/polkit-1/actions/com.mesonbuild.install.policy
 
 %changelog
+* Fri Nov 06 2020 Jeff Law <law@redhat.com> - 0.55.3-2
+- Avoid bogus volatile in gnome modules support code caught by gcc-11
+
 * Fri Sep 11 2020 Kalev Lember <klember@redhat.com> - 0.55.3-1
 - Update to 0.55.3