readelf_need_wide

[Loren James Rittle]

Phil writes:

>>> The command's normal exit value has to be extracted with WEXITSTATUS.
>> Yikes!  Using this macro would appear to be *far* less portable IMHO!
> Well, it's POSIX.  And SUSv2.  (But probably not BSD.)

No, BSD has the macro in question in an obscure system header. ;-)

However, we called system() not some form of wait() thus I'm skeptical
that WEXITSTATUS may be used portability.  Does POSIX document that
system() must be implemented to preserve such status?

> The more I play with abi_check.cc, the more I become convinced that we'll
> shortly be renaming it to abi_check.cc.in, and replacing these run-time
> tests with autoconf'd macros.

Seems that the entire shell call-out could be moved to the Makefile
rule and then pass multiple files as input to the actual abi_check
process.  Any C++ program with a call to system() is ripe for change. ;-)

Regards,
Loren