Wireshark-bugs: [Wireshark-bugs] [Bug 5608] build fails when it tries to #include <getopt.h>, no
Date: Sun, 23 Jan 2011 12:43:54 -0800 (PST)

--- Comment #3 from Guy Harris <[email protected]> 2011-01-23 12:43:53 PST ---

says <stdlib.h> on Solaris 9.  getopt() is a UN*X routine, not a C-language
routine, so <unistd.h> - which is what the Single UNIX Specification says - is
probably where it ultimately belongs.  Where it's been declared throughout the
history of UN*X is another matter.

For what it's worth, according to the man pages I've found online:

Tru64 UNIX 4.0 - <unistd.h>

HP-UX 10.01, from the FreeBSD man page site - <unistd.h>

SunOS 5.5.1 (Solaris 2.5.1's core OS) - <stdlib.h>

My inclination, in the short term, is to use <unistd.h> and see whether that
breaks on any platform and, if so, fall back on <stdlib.h> on platforms where
<unistd.h> doesn't work.

(In the longer term, we should probably use getopt_long() and either supply the
GNU libc version on OSes that don't have it or require a newer version of GLib
and use GLib's version.)

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