package/pulseaudio: fix build without C++

Fix the following build failure without C++ raised since bump to version
16.1 in commit 6f3131296484767f037d3535ab69f328e94351db:

../output-1/build/pulseaudio-16.1/meson.build:1:0: ERROR: Unknown compiler(s): [['/home/autobuild/autobuild/instance-1/output-1/per-package/pulseaudio/host/bin/powerpc64-buildroot-linux-gnu-g++']]
The following exception(s) were encountered:
Running "/home/autobuild/autobuild/instance-1/output-1/per-package/pulseaudio/host/bin/powerpc64-buildroot-linux-gnu-g++ --version" gave "[Errno 2] No such file or directory: '/home/autobuild/autobuild/instance-1/output-1/per-package/pulseaudio/host/bin/powerpc64-buildroot-linux-gnu-g++'"

Fixes:
 - http://autobuild.buildroot.org/results/6526a21bd4da3b8458188f27c1ec04c381e4b673

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/pulseaudio/0004-meson.build-fix-build-without-C.patch

@@ -0,0 +1,42 @@
+From 9de058e15a4caba4939a864fb7caf67e0164f07e Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Mon, 25 Jul 2022 21:49:25 +0200
+Subject: [PATCH] meson.build: fix build without C++
+
+Fix the following build failure without C++:
+
+../output-1/build/pulseaudio-16.1/meson.build:1:0: ERROR: Unknown compiler(s): [['/home/autobuild/autobuild/instance-1/output-1/per-package/pulseaudio/host/bin/powerpc64-buildroot-linux-gnu-g++']]
+The following exception(s) were encountered:
+Running "/home/autobuild/autobuild/instance-1/output-1/per-package/pulseaudio/host/bin/powerpc64-buildroot-linux-gnu-g++ --version" gave "[Errno 2] No such file or directory: '/home/autobuild/autobuild/instance-1/output-1/per-package/pulseaudio/host/bin/powerpc64-buildroot-linux-gnu-g++'"
+
+Fixes:
+ - http://autobuild.buildroot.org/results/6526a21bd4da3b8458188f27c1ec04c381e4b673
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Upstream status:
+https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/737]
+---
+ meson.build | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/meson.build b/meson.build
+index c5135330f..8248f263b 100644
+--- a/meson.build
++++ b/meson.build
+@@ -1,4 +1,4 @@
+-project('pulseaudio', 'c', 'cpp',
++project('pulseaudio', 'c',
+         version : run_command(find_program('git-version-gen'), join_paths(meson.current_source_dir(), '.tarball-version')).stdout().strip(),
+         meson_version : '>= 0.50.0',
+         default_options : [ 'c_std=gnu11', 'cpp_std=c++11' ]
+@@ -433,6 +433,7 @@ endif
+ # Code coverage
+ 
+ if get_option('gcov')
++  add_languages('cpp')
+   add_project_arguments('--coverage', language: ['c', 'cpp'])
+   add_project_link_arguments('--coverage', language: ['c', 'cpp'])
+ endif
+-- 
+2.35.1
+