[RFC,v2,1/7] gstreamer: Add `-Wno-volatile` for GCC
diff mbox series

Message ID 20260323102724.1385487-2-barnabas.pocze@ideasonboard.com
State New
Headers show
Series
  • C++20 migration
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Commit Message

Barnabás Pőcze March 23, 2026, 10:27 a.m. UTC 
Older versions of glib may use `volatile` qualified variables, triggering
the warning in C++20. So suppress it.

Link: https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1719
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
---
 src/gstreamer/meson.build | 7 +++++++
 1 file changed, 7 insertions(+)

Patch
diff mbox series 

diff --git a/src/gstreamer/meson.build b/src/gstreamer/meson.build
index fd83e073d..602f978e8 100644
--- a/src/gstreamer/meson.build
+++ b/src/gstreamer/meson.build
@@ -50,6 +50,13 @@  if cc.get_id() == 'clang' and glib_dep.version().version_compare('<2.63.0')
     libcamera_gst_cpp_args += ['-Wno-unused-function']
 endif
 
+# In C++20 many operations involving the `volatile` qualifier became deprecated.
+# glib however made use of `volatile` in certain macros that would trigger
+# this warning. See https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1719.
+if cc.get_id() == 'gcc' and glib_dep.version().version_compare('<2.67.1')
+    libcamera_gst_cpp_args += ['-Wno-volatile']
+endif
+
 libcamera_gst = shared_library('gstlibcamera',
     libcamera_gst_sources,
     cpp_args : libcamera_gst_cpp_args,