andreas1234567 has asked for the wisdom of the Perl Monks concerning the following question:

I recently got co-maintainership of a module which depends on PHP version 5. More specifically, it requires The former is easy using File::Find as shown here. However, I do not know how to reliably do the latter.

ExtUtils::MakeMaker goes to great lengths to check that libraries are installed, and emits this message upon failure: 

Note (probably harmless): No library found for -lphp5

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I'd like to catch that warning. Can I make an assessment based on the return value from ExtUtils::MakeMaker?

My goal is to simply abort (i.e. die) the 'perl Makefile.PL' if not all of the above requirements are met. Is there a reliable, platform-independent way of doing that in perl?

Replies are listed 'Best First'.
Re: Detect library in Makefile.PL
by syphilis (Archbishop) on Nov 13, 2008 at 10:11 UTC
    It's intended that Devel::CheckLib can help with this. I haven't taken a close look - ymmv.

    Cheers,
    Rob
[reply]
      Devel::CheckLib looks promising, but it silently converts gcc's compiling errors to "Can't link/include": 
      use strict;
use warnings;
use Devel::CheckLib;

our $debug ||= 0;

my @headers = qw ( php_main.h );
my @incpath = qw(
  /usr/local/include
  /usr/local/include/php
  /usr/local/include/php/main
  /usr/local/include/php/TSRM
  /usr/local/include/php/Zend
  /usr/local/include/php/ext
  /usr/local/include/php/ext/date/lib
);

check_lib_or_exit(
  header  => \@headers,
  incpath => \@incpath,
  debug   => $debug,
);
__END__

      [download]
      $ perl -sl devel.checklib.pl
Can't link/include 'php_main.h'
$ perl -sl devel.checklib.pl -debug 1
# /usr/bin/gcc assertlibSu6peu8p.c -I/usr/local/include -I/usr/local/i
+nclude/php -I/usr/local/include/php/main -I/usr/local/include/php/TSR
+M -I/usr/local/include/php/Zend -I/usr/local/include/php/ext -I/usr/l
+ocal/include/php/ext/date/lib -o assertlib27VD0sdi
In file included from /usr/local/include/php/Zend/zend_globals.h:28,
                 from /usr/local/include/php/main/php_main.h:25,
                 from assertlibSu6peu8p.c:1:
/usr/local/include/php/Zend/zend_globals_macros.h: In function `BEGIN_
+EXTERN_C':/usr/local/include/php/Zend/zend_globals_macros.h:37: error
+: storage class specified for parameter `ZEND_API'
/usr/local/include/php/Zend/zend_globals_macros.h:37: error: syntax er
+ror before "struct"

      [download]
      Read more... (20 kB)
      Is it a bug, or am I missing something?
      --
      No matter how great and destructive your problems may seem now, remember, you've probably only seen the tip of them. [1]
[reply]
[d/l]
[select]
Re: Detect library in Makefile.PL
by Anonymous Monk on Nov 13, 2008 at 11:41 UTC
[reply]
[d/l]

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