Re: POPT 2.0: version stamping in includes

2010-06-18 Thread Jeff Johnson 

On Jun 18, 2010, at 9:03 PM, Michael Jennings wrote:
 
 Ah, okay.  I guess I was envisioning for runtime checks:
 
  void *f = dlopen(NULL, RTLD_LAZY);
  if (dlsym(f, popt_something)) {
...
  }
 

Any idea how portably POSIX dlsym() is in 2010?

There's the GNUish dlvsym() that needs figgering if I attempt
compatibility with symbol versioning too.

73 de Jeff

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Re: POPT 2.0: version stamping in includes

2010-06-18 Thread Michael Jennings 
On Friday, 18 June 2010, at 21:09:24 (-0400),
Jeff Johnson wrote:

 Any idea how portably POSIX dlsym() is in 2010?

According to the Open Group website, dlsym() and dlopen() are at
*least* in POSIX.1 2004 if not earlier.  And they came from SunOS, so
Solaris portability won't be an issue.  MacOS has them, BSD has them.
They should be fine.

 There's the GNUish dlvsym() that needs figgering if I attempt
 compatibility with symbol versioning too.

Yeah, that's where you'll get into portability trouble. :)

Michael

-- 
Michael Jennings (a.k.a. KainX)  http://www.kainx.org/  m...@kainx.org
Linux Server/Cluster Admin, LBL.gov   Author, Eterm (www.eterm.org)
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