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test_library: suppress size_t -> int warning
getopt: suppress `-Wdeprecated-non-prototype` warnings
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@ -683,7 +683,7 @@ static void test_escape_char_process_test(const testCtx *const p_ctx) {
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symbol.symbology = data[i].symbology;
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symbol.input_mode = data[i].input_mode;
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length = strlen(data[i].data);
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length = (int) strlen(data[i].data);
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escaped_len = length;
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ret = escape_char_process_test(&symbol, (unsigned char *) data[i].data, &escaped_len, NULL);
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@ -197,7 +197,8 @@ static char *posixly_correct;
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whose names are inconsistent. */
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#ifndef getenv
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extern char *getenv ();
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/* zint: prototype it to avoid warning `-Wdeprecated-non-prototype` (will be error in C2x) */
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extern char *getenv (const char *); /* was extern char *getenv (); */
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#endif
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#endif /* not __GNU_LIBRARY__ */
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@ -135,7 +135,8 @@ struct option
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arguments to the option '\0'. This behavior is specific to the GNU
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`getopt'. */
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#ifdef __GNU_LIBRARY__
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/* zint: prototype it always to avoid warning `-Wdeprecated-non-prototype` (will be error in C2x) */
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#ifdef 1 /* was __GNU_LIBRARY__ */
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/* Many other libraries have conflicting prototypes for getopt, with
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differences in the consts, in stdlib.h. To avoid compilation
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errors, only prototype getopt for the GNU C library. */
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