[ksh93-integration-discuss] Re: Planning the final ARC case forthe first ksh93-integration putback...

[Glenn Fowler]

the following pertains to solaris 10 -- don't know about other versions

can someone explain how
	sysconf(_SC_PASS_MAX) == 256
for these compile options
	cc
	cc -D_POSIX_SOURCE=1
	cc -D_POSIX_C_SOURCE=21000101L
	cc -D_POSIX_SOURCE=1 -D_POSIX_C_SOURCE=21000101L
	cc -D_XOPEN_SOURCE -D_XOPEN_VERSION=4  <<< "XPG4"
vs.
	/usr/bin/getconf PASS_MAX ==      256
	/usr/xpg4/bin/getconf PASS_MAX ==   8  <<< value in question
	/usr/xpg6/bin/getconf PASS_MAX == 256

when the getconf(1) standard text specifies

  The value of each configuration variable shall be determined as if it
  were obtained by calling the function from which it is defined to be
  available by this volume of IEEE Std 1003.1-2001 or by the System
  Interfaces volume of IEEE Std 1003.1-2001 (see the OPERANDS section).
  The value shall reflect conditions in the current operating
  environment.

where I assume that this is the function call for PASS_MAX:
	sysconf(_SC_PASS_MAX)

does this fall into the "shall reflect conditions in the current
operating environment" hole?

-- Glenn Fowler -- AT&T Research, Florham Park NJ --