From 23614c1f233bf6c8f35366cee6be53ae80af0e28 Mon Sep 17 00:00:00 2001
From: Jarkko Hietaniemi <jhi@iki.fi>
Date: Mon, 13 Sep 1999 10:22:31 +0000
Subject: [PATCH] From: Ilya Zakharevich <ilya@math.ohio-state.edu> To:
 perl5-porters@perl.org (Mailing list Perl5) Subject: [PATCH 5.005_61]
 MakeMaker supports uninstalled Perls Date: Sat, 11 Sep 1999 05:31:03 -0400
 (EDT) Message-Id: <199909110931.FAA11036@monk.mps.ohio-state.edu>

From: andreas.koenig@anima.de (Andreas J. Koenig)
To: Ilya Zakharevich <ilya@math.ohio-state.edu>
Cc: perl5-porters@perl.org (Mailing list Perl5)
Subject: Re: [PATCH 5.005_61] MakeMaker supports uninstalled Perls
Date: 11 Sep 1999 15:36:26 +0200
Message-ID: <sfc906dr2n9.fsf@hohenstaufen.in-berlin.de>

p4raw-id: //depot/cfgperl@4135
---
 lib/ExtUtils/MM_Unix.pm   | 28 ++++++++++++++++++++++++++++
 lib/ExtUtils/MakeMaker.pm |  2 +-
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/lib/ExtUtils/MM_Unix.pm b/lib/ExtUtils/MM_Unix.pm
index 0909cc1..5e12773 100644
--- a/lib/ExtUtils/MM_Unix.pm
+++ b/lib/ExtUtils/MM_Unix.pm
@@ -1674,10 +1674,34 @@ from the perl source tree.
 	}
     } else {
 	# we should also consider $ENV{PERL5LIB} here
+        my $old = $self->{PERL_LIB} || $self->{PERL_ARCHLIB} || $self->{PERL_INC};
 	$self->{PERL_LIB}     ||= $Config::Config{privlibexp};
 	$self->{PERL_ARCHLIB} ||= $Config::Config{archlibexp};
 	$self->{PERL_INC}     = $self->catdir("$self->{PERL_ARCHLIB}","CORE"); # wild guess for now
 	my $perl_h;
+
+	if (not -f ($perl_h = $self->catfile($self->{PERL_INC},"perl.h"))
+	    and not $old){
+	    # Maybe somebody tries to build an extension with an
+	    # uninstalled Perl outside of Perl build tree
+	    my $found;
+	    for my $dir (@INC) {
+	      $found = $dir, last if -e $self->catdir($dir, "Config.pm");
+	    }
+	    if ($found) {
+	      my $inc = dirname $found;
+	      if (-e $self->catdir($inc, "perl.h")) {
+		$self->{PERL_LIB}	   = $found;
+		$self->{PERL_ARCHLIB}	   = $found;
+		$self->{PERL_INC}	   = $inc;
+		$self->{UNINSTALLED_PERL}  = 1;
+		print STDOUT <<EOP;
+... Detected uninstalled Perl.  Trying to continue.
+EOP
+	      }
+	    }
+	}
+	
 	unless (-f ($perl_h = $self->catfile($self->{PERL_INC},"perl.h"))){
 	    die qq{
 Error: Unable to locate installed Perl libraries or Perl source code.
@@ -2556,6 +2580,10 @@ sub manifypods {
 	$pod2man_exe = $self->catfile($Config{scriptdirexp},'pod2man');
     }
     unless ($pod2man_exe = $self->perl_script($pod2man_exe)) {
+      # Maybe a build by uninstalled Perl?
+      $pod2man_exe = $self->catfile($self->{PERL_INC}, "pod", "pod2man");
+    }
+    unless ($pod2man_exe = $self->perl_script($pod2man_exe)) {
 	# No pod2man but some MAN3PODS to be installed
 	print <<END;
 
diff --git a/lib/ExtUtils/MakeMaker.pm b/lib/ExtUtils/MakeMaker.pm
index 6318d0e..0f00e39 100644
--- a/lib/ExtUtils/MakeMaker.pm
+++ b/lib/ExtUtils/MakeMaker.pm
@@ -482,7 +482,7 @@ sub ExtUtils::MakeMaker::new {
 	    else {
 		$pthinks =~ s!/Config\.pm$!!; $pthinks =~ s!.*/!!;
 	    }
-	    print STDOUT <<END;
+	    print STDOUT <<END unless $self->{UNINSTALLED_PERL};
 Your perl and your Config.pm seem to have different ideas about the architecture
 they are running on.
 Perl thinks: [$pthinks]
-- 
2.7.4