have HAVE_DECL_ if special and is set to 0 on failure
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@@ -312,7 +312,7 @@ const char * ROKEN_LIB_FUNCTION hstrerror(int);
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#endif
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#endif
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#ifndef HAVE_DECL_H_ERRNO
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#if HAVE_DECL_H_ERRNO
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extern int h_errno;
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#endif
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@@ -509,13 +509,13 @@ int ROKEN_LIB_FUNCTION get_window_size(int fd, struct winsize *);
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void ROKEN_LIB_FUNCTION vsyslog(int, const char *, va_list);
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#endif
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#ifndef HAVE_DECL_OPTARG
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#if HAVE_DECL_OPTARG
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extern char *optarg;
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#endif
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#ifndef HAVE_DECL_OPTIND
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#if HAVE_DECL_OPTIND
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extern int optind;
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#endif
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#ifndef HAVE_DECL_OPTERR
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#if HAVE_DECL_OPTERR
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extern int opterr;
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#endif
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@@ -714,7 +714,7 @@ void ROKEN_LIB_FUNCTION setprogname(const char *);
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const char * ROKEN_LIB_FUNCTION getprogname(void);
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#endif
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#if !defined(HAVE_SETPROGNAME) && !defined(HAVE_GETPROGNAME) && !defined(HAVE_DECL___PROGNAME)
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#if !defined(HAVE_SETPROGNAME) && !defined(HAVE_GETPROGNAME) && !HAVE_DECL___PROGNAME
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extern const char *__progname;
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#endif
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