8000 Remove a couple other vestigial yylex() declarations. · postgrespro/postgres_cluster@9a8e233 · GitHub
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Remove a couple other vestigial yylex() declarations.
These were workarounds for a long-gone flex bug; all supported versions of flex emit an extern declaration as expected.
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‎src/backend/utils/misc/guc-file.l

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@@ -47,9 +47,6 @@ static sigjmp_buf *GUC_flex_fatal_jmp;
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static void FreeConfigVariable(ConfigVariable *item);
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/* flex fails to supply a prototype for yylex, so provide one */
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int GUC_yylex(void);
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static int GUC_flex_fatal(const char *msg);
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static char *GUC_scanstr(const char *s);
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‎src/bin/psql/psqlscan.l

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@@ -114,8 +114,6 @@ static int backtick_start_offset;
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#define LEXRES_OK 3 /* OK completion of backslash argument */
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int yylex(void);
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static void evaluate_backtick(void);
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static void push_new_buffer(const char *newstr, const char *varname);
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static void pop_buffer_stack(PsqlScanState state);

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