perl5.000 patch.0o: [address] a few more Configure and build nits.perl-5.000o

This patch addresses a few more Configure and build nits.  Full
details are given below, but the main hightligths are (slightly)
better support for nested extensions and DLD and AIX MakeMaker fixes.

Configure
        Detect MachTen.  Thanks to Mark Pease <peasem@primenet.com>.
        Delete some tabs that caused a MachTen /bin/sh core dump!
        Detect extensions nested 1 level deep, e.g.  Devel/DProf/DProf.xs

MANIFEST
MANIFEST.new
        Include new hints/machten.sh hint file.

Makefile.SH
        Document why we use ./makedir instead of mkdir.

U/Extensions.U
        Detect extensions nested 1 level deep, e.g.  Devel/DProf/DProf.xs

U/dist3_051.pat
        Include MachTen patches.

configpm
        Convert nested extension names from filesytem-dependent Devel/DProf
        to perl5's internal naming scheme Devel::DProf.

doio.c
        A dup-related buglet fix from Hallvard B. Furuseth 
        <h.b.furuseth@usit.uio.no>.

ext/DB_File/DB_File.pm
ext/DynaLoader/DynaLoader.pm
ext/Fcntl/Fcntl.pm
ext/GDBM_File/GDBM_File.pm
ext/POSIX/POSIX.pm
ext/Socket/Socket.pm
        Throw a qw() around @ISA elements to show "good style".

hints/machten.sh
        new file.

lib/ExtUtils/MakeMaker.pm
        Bump version number to 4.086.
        Fix AIX buglet -- needed to specify NAME.
        Linux/DLD/gcc-2.6.2:  We no longer load .sa libraries (except
        libm.sa, which is apparently still o.k. 
      
util.c
        Another dup-related buglet fix.

1 files changed, 14 insertions, 3 deletions

diff --git a/lib/ExtUtils/MakeMaker.pm b/lib/ExtUtils/MakeMaker.pm
index dbb877eccc..f619108341 100644
--- a/lib/ExtUtils/MakeMaker.pm
+++ b/lib/ExtUtils/MakeMaker.pm
@@ -1,6 +1,6 @@
 package ExtUtils::MakeMaker;
 
-$Version = 4.085; # Last edited 21st Feb 1995 by Andreas Koenig
+$Version = 4.086; # Last edited 9 Mar 1995 by Andy Dougherty
 
 use Config;
 check_hints();
@@ -1374,7 +1374,7 @@ $att{BASEEXT}.exp: Makefile.PL
 ",'	$(PERL) $(I_PERL_LIBS) -e \'use ExtUtils::MakeMaker; \\
 	mksymlists(DL_FUNCS => ',
 	%$funcs ? neatvalue($funcs) : '""',', DL_VARS => ',
-	@$vars  ? neatvalue($vars)  : '""',")'
+	@$vars  ? neatvalue($vars)  : '""', ", NAME => \"$att{NAME}\")'
 ");
 
     join('',@m);
@@ -1977,9 +1977,16 @@ sub extliblist{
 	my($found_lib)=0;
 	foreach $thispth (@searchpath, @libpath){
 
+		# Try to find the full name of the library.  We need this to
+		# determine whether it's a dynamically-loadable library or not.
+		# This tends to be subject to various os-specific quirks.
+		# For gcc-2.6.2 on linux (March 1995), DLD can not load
+		# .sa libraries, with the exception of libm.sa, so we
+		# deliberately skip them.
 	    if (@fullname=<${thispth}/lib${thislib}.${so}.[0-9]*>){
 		$fullname=$fullname[-1]; #ATTN: 10 looses against 9!
-	    } elsif (-f ($fullname="$thispth/lib$thislib.$so")){
+	    } elsif (-f ($fullname="$thispth/lib$thislib.$so")
+		     && (($Config{'dlsrc'} ne "dl_dld") || ($thislib eq "m"))){
 	    } elsif (-f ($fullname="$thispth/lib${thislib}_s.a")
 		     && ($thislib .= "_s") ){ # we must explicitly ask for _s version
 	    } elsif (-f ($fullname="$thispth/lib$thislib.a")){
@@ -2258,6 +2265,10 @@ Fixed a bug that didn't allow lib/ directory work as documented.
 
 Allowed C<make test TEST_VERBOSE=1>
 
+v4.086 March 9 1995 by Andy Dougherty
+
+Fixed some AIX buglets.  Fixed DLD support for Linux with gcc 2.6.2.
+
 =head1 NOTES
 
 MakeMaker development work still to be done: