Re: Devel::CheckLib problem

FWIW, I can reproduce the problem with Config.pm outside of Devel::CheckLib.pm:


C:\test>perl -MConfig -E"say for @Config{ qw[ccflags ldflags] }"
&Config::AUTOLOAD failed on Config::launcher at C:/Perl64/lib/Config.p
+m line 76.
BEGIN failed--compilation aborted at C:/Perl64/lib/ActivePerl/Config.p
+m line 4.
Compilation failed in require at C:/Perl64/lib/Config_heavy.pl line 11
+.
BEGIN failed--compilation aborted at C:/Perl64/lib/Config_heavy.pl lin
+e 15.
Compilation failed in require at C:/Perl64/lib/Config.pm line 74.

C:\test>perl -MConfig -E"say @Config{ qw[ccflags ldflags ]}"
-nologo -GF -W3 -MD -Zi -DNDEBUG -Ox -GL -fp:precise -DWIN32 -D_CONSOL
+E -DNO_STRICT -DHAVE_DES_FCRYPT -DWIN64 -DCONSERVATIVE -DUSE_SITECUST
+OMIZE -DPRIVLIB_LAST_IN_INC -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_S
+YS -DUSE_PERLIO -DPERL_MSVCRT_READFIX-nologo -nodefaultlib -debug -op
+t:ref,icf -ltcg  -libpath:"C:\Perl64\lib\CORE"  -machine:AMD64
[download]

But I've still no real idea why that happens.

My best guess is that %Config is some kind of tied or magic-applied hash and it doesn't like having its elements aliased.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

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Re^2: Devel::CheckLib problem by syphilis (Archbishop) on Dec 09, 2010 at 14:43 UTC
My best guess is that %Config is some kind of tied or magic-applied hash and it doesn't like having its elements aliased Yes, in order for MinGW to work with ActivePerl, it's necessary to override a number of %Config values. They do this with something along the lines of: `my $obj = tied %Config::Config; if(mingw_detected) { $obj->{cc} = 'gcc'; $obj->{make} = 'dmake'; .... }` [download] I still don't get how the presence (and loading) of an empty blib can make a difference to the loading of Devel::CheckLib ... though it's probably not as important as I first thought. I'll see how I go with what you've come up with already. Thanks ! Cheers, Rob	[reply] [d/l]

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Re^2: Devel::CheckLib problem
by syphilis (Archbishop) on Dec 09, 2010 at 14:43 UTC

My best guess is that %Config is some kind of tied or magic-applied hash and it doesn't like having its elements aliased

my $obj = tied %Config::Config;
if(mingw_detected) {
  $obj->{cc} = 'gcc';
  $obj->{make} = 'dmake';
  ....
}
[download]

[reply]
[d/l]