Implement and document %yydecl directive to replace #define YY_DECL.

Also added a deprecation note abut the old mechanism.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/flexdef.h b/src/flexdef.h
index d2d61cb..10bc90f 100644
--- a/src/flexdef.h
+++ b/src/flexdef.h
@@ -351,6 +351,7 @@ struct ctrl_bundle_t {
 	bool use_read;		// (-f, -F, or -Cr) use read() for scanner input 
        				// otherwise, use fread(). 
 	char *yyclass;		// yyFlexLexer subclass to use for YY_DECL
+	char *yydecl;		// user-specfied prototype for yylex.
 	bool yytext_is_array;	// if true (i.e., %array directive), then declare
 				// yytext as array instead of a character pointer.
 				// Nice and inefficient.