[Firm] [PATCH] warning: Add -Wunknown-warning-option

[Luca Barbato]

Clang compatible.
---
 warning.c | 3 ++-
 warning.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/warning.c b/warning.c
index 6ffe763..cb49e24 100644
--- a/warning.c
+++ b/warning.c
@@ -76,6 +76,7 @@ static warning_switch_t warning[] = {
 	[WARN_UNUSED_VALUE]                  = { WARN_STATE_ON,   "unused-value"                  },
 	[WARN_UNUSED_VARIABLE]               = { WARN_STATE_NONE, "unused-variable"               },
 	[WARN_WRITE_STRINGS]                 = { WARN_STATE_NONE, "write-strings"                 },
+	[WARN_UNKNOWN_WARNING_OPTION]        = { WARN_STATE_ON,   "unknown-warning-option"        },
 };
 
 warning_switch_t const *get_warn_switch(warning_t const w)
@@ -194,7 +195,7 @@ extra:
 		/* GCC legacy: This way it only can be activated. */
 		warning[WARN_IMPLICIT_FUNCTION_DECLARATION].state = WARN_STATE_ON | WARN_STATE_ERROR;
 	} else {
-		warningf(WARN_OTHER, NULL, "ignoring unknown option %hs%hs", "-W", opt);
+		warningf(WARN_UNKNOWN_WARNING_OPTION, NULL, "ignoring unknown option %hs%hs", "-W", opt);
 	}
 }
 
diff --git a/warning.h b/warning.h
index b1dd0f5..9b53af1 100644
--- a/warning.h
+++ b/warning.h
@@ -76,6 +76,7 @@ typedef enum warning_t {
 	WARN_UNUSED_VALUE,                  /**< Warn whenever a statement computes a result that is explicitly not used */
 	WARN_UNUSED_VARIABLE,               /**< Warn whenever a local variable or non-constant static variable is unused aside from its declaration */
 	WARN_WRITE_STRINGS,                 /**< Give string constants the type 'const char[LENGTH]' so that copying the address of one into a 'char *' pointer will get a warning */
+	WARN_UNKNOWN_WARNING_OPTION,        /**< Warn whenever an unknown warning is requested */
 } warning_t;
 
 typedef enum warn_state_t {
-- 
1.8.3.2