putenv for AIX and ifdef for AIX

[ClownPleco]

I have read several posts about putenv is not Standard C. But I'm
wondering if anyone knows if it is available in AIX. All of our other
platforms (linux (32 and 64 bit), sgi, hpux, x86, darwin (intel and
mac), interix and sun) behave properly for our application. We found
that if we run this command prior to running the application, it works
correctly:

set LDR_CNTRL=MAXDATA=0x80000000;export LDR_CNTRL

Our problem is that we start a parent process that spawns the child
application. If we set the LDR_CNTRL=MAXDATA prior to starting the
parent process, other child applications are failing.

Our initial solution is to have wrap around child application that
sets the environmental variable and then spawns an additional child.
This environmental variable would only be set if the the operating
system is AIX.

Second question, does anyone know the correct #ifdef statement to
check for AIX, is it:

#ifdef __AIX__

I'm a very very green C programmer!

Thanks

Rick

[Richard Tobin]

In article <11**********************@l22g2000prc.googlegroups .com>,
ClownPleco <ri********@gmail.comwrote:

>I have read several posts about putenv is not Standard C. But I'm
wondering if anyone knows if it is available in AIX. All of our other
platforms (linux (32 and 64 bit), sgi, hpux, x86, darwin (intel and
mac), interix and sun) behave properly for our application. We found
that if we run this command prior to running the application, it works
correctly:

set LDR_CNTRL=MAXDATA=0x80000000;export LDR_CNTRL

You'd be better off asking in comp.unix.aix.

-- Richard
--
"Consideration shall be given to the need for as many as 32 characters
in some alphabets" - X3.4, 1963.

[CBFalconer]

ClownPleco wrote:

>
I have read several posts about putenv is not Standard C. But I'm
wondering if anyone knows if it is available in AIX. All of our other
platforms (linux (32 and 64 bit), sgi, hpux, x86, darwin (intel and
mac), interix and sun) behave properly for our application. We found
that if we run this command prior to running the application, it works
correctly:

set LDR_CNTRL=MAXDATA=0x80000000;export LDR_CNTRL

Our problem is that we start a parent process that spawns the child
application. If we set the LDR_CNTRL=MAXDATA prior to starting the
parent process, other child applications are failing.

Our initial solution is to have wrap around child application that
sets the environmental variable and then spawns an additional child.
This environmental variable would only be set if the the operating
system is AIX.

Second question, does anyone know the correct #ifdef statement to
check for AIX, is it:

#ifdef __AIX__

I'm a very very green C programmer!

These are not C language questions. Try comp.unix.programmer (I
think).

--
Chuck F (cbfalconer at maineline dot net)
Available for consulting/temporary embedded and systems.
<http://cbfalconer.home.att.net>
--
Posted via a free Usenet account from http://www.teranews.com

[Keith Thompson]

Mark Bluemel <ma**********@pobox.comwrites:

ClownPleco wrote:

>I have read several posts about putenv is not Standard C. But I'm
wondering if anyone knows if it is available in AIX.

As I happen to work extensively with AIX, in this area, I'll give you
some answers. However, I'd stress that it's off-topic for this
newsgroup - as others have suggested, it would probably be more
appropriate to ask these sort of questions in a unix newsgroup in
future.

[...]

How difficult would it have been, both for you and for the OP, to take
this discussion to comp.unix aix?

--
Keith Thompson (The_Other_Keith) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <* <http://users.sdsc.edu/~kst>
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"

[Thomas Dickey]

Richard Tobin <ri*****@cogsci.ed.ac.ukwrote:

In article <11**********************@l22g2000prc.googlegroups .com>,
ClownPleco <ri********@gmail.comwrote:

>>I have read several posts about putenv is not Standard C. But I'm
wondering if anyone knows if it is available in AIX. All of our other
platforms (linux (32 and 64 bit), sgi, hpux, x86, darwin (intel and
mac), interix and sun) behave properly for our application. We found
that if we run this command prior to running the application, it works
correctly:

set LDR_CNTRL=MAXDATA=0x80000000;export LDR_CNTRL

You'd be better off asking in comp.unix.aix.

Not really (comp.unix.aix doesn't get much traffic from developers,
and rarely do those get a knowledgable answer - nothing that OP did
get an answer here ;-).

Posting to comp.unix.programmer would be more likely to get results.

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net