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-rw-r--r--usr.bin/m4/tokenizer.l2
1 files changed, 2 insertions, 0 deletions
diff --git a/usr.bin/m4/tokenizer.l b/usr.bin/m4/tokenizer.l
index da362b4..2b4b2db 100644
--- a/usr.bin/m4/tokenizer.l
+++ b/usr.bin/m4/tokenizer.l
@@ -31,6 +31,8 @@ extern int32_t yylval;
int32_t number(void);
int32_t parse_radix(void);
extern int yylex(void);
+
+#define YY_DECL int yylex(void)
%}
delim [ \t\n]
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