I set the environment variable on the command line first and then ran my test. The value used by mylib is the one that was set on the command line and not the one from within Perl

Yes, I see the same behaviour (on Win32, btw).
I even tried setting the environment variable at the very beginning of the perl script, inside a BEGIN{} block ... but the external library still doesn't see that value.

I'm wondering whether a dynamic (shared) library might see the new value, but I don't think it would. (You could try that if you think it's worth a shot - my 'libmylib' was a static library.)

Only other thing I can think of is that your library needs a 'setenv' implementation, which you can then call from perl via an Inline::C wrapper whenever you alter an environment variable.

Cheers,
Rob

In reply to Re: Inline::C and environment vars by syphilis
in thread Inline::C and environment vars by gri6507

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.