Add -Werror=implicit-fallthrough=5 compiler flag

keith-packard · keith-packard · commit fd94dc8bee42 · 2024-09-30T14:43:30.000-07:00
This requires explicit (not just comments) annotation when falling
through a switch clause.

Signed-off-by: Keith Packard &lt;keithp@keithp.com&gt;
diff --git a/meson.build b/meson.build
@@ -826,6 +826,8 @@ common_warnings = [
   '-Wno-unused-command-line-argument',
   '-Wmissing-prototypes',
   '-Wmissing-declarations',
+  '-Werror=implicit-fallthrough=5',
+  '-Werror=unreachable-code-fallthrough',
 ]
 if get_option('analyzer')
   common_warnings += [

Original file line number	Diff line number	Diff line change
`@@ -826,6 +826,8 @@ common_warnings = [`
`826`	`826`	`'-Wno-unused-command-line-argument',`
`827`	`827`	`'-Wmissing-prototypes',`
`828`	`828`	`'-Wmissing-declarations',`
	`829`	`+ '-Werror=implicit-fallthrough=5',`
	`830`	`+ '-Werror=unreachable-code-fallthrough',`
`829`	`831`	`]`
`830`	`832`	`if get_option('analyzer')`
`831`	`833`	`common_warnings += [`