meson: Enable some MSVC warnings for parity with GCC/Clang

This makes it easier to do development with MSVC by making it warn
on common issues that GCC/Clang error out for in our CI configuration.

Continuation from https://gitlab.freedesktop.org/gstreamer/gst-build/-/merge_requests/223

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1760>

diff --git a/meson.build b/meson.build
index 9f61688..c69ae9c 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -46,19 +46,23 @@ endif
 cdata = configuration_data()
 
 if cc.get_id() == 'msvc'
-  # Ignore several spurious warnings for things gstreamer does very commonly
-  # If a warning is completely useless and spammy, use '/wdXXXX' to suppress it
-  # If a warning is harmless but hard to fix, use '/woXXXX' so it's shown once
-  # NOTE: Only add warnings here if you are sure they're spurious
   msvc_args = [
+      # Ignore several spurious warnings for things gstreamer does very commonly
+      # If a warning is completely useless and spammy, use '/wdXXXX' to suppress it
+      # If a warning is harmless but hard to fix, use '/woXXXX' so it's shown once
+      # NOTE: Only add warnings here if you are sure they're spurious
       '/wd4018', # implicit signed/unsigned conversion
       '/wd4146', # unary minus on unsigned (beware INT_MIN)
       '/wd4244', # lossy type conversion (e.g. double -> int)
       '/wd4305', # truncating type conversion (e.g. double -> float)
       cc.get_supported_arguments(['/utf-8']), # set the input encoding to utf-8
+
+      # Enable some warnings on MSVC to match GCC/Clang behaviour
+      '/w14062', # enumerator 'identifier' in switch of enum 'enumeration' is not handled
+      '/w14101', # 'identifier' : unreferenced local variable
+      '/w14189', # 'identifier' : local variable is initialized but not referenced
   ]
-  add_project_arguments(msvc_args, language : 'c')
-  add_project_arguments(msvc_args, language : 'cpp')
+  add_project_arguments(msvc_args, language: ['c', 'cpp'])
   # Disable SAFESEH with MSVC for plugins and libs that use external deps that
   # are built with MinGW
   noseh_link_args = ['/SAFESEH:NO']