Backport upstream fix for pointersize test

The symbol 'main' is multiply defined because Perl 5's `Configure`
script erroneously appends `try.c`, instead of overwriting it.

This change backports an upstream patch, which will not be needed once
Perl 5 5.23.x is available.

Sent by Eric N. Vander Weele

lang/perl5/distinfo

@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.132 2015/12/28 13:44:03 adam Exp $
+$NetBSD: distinfo,v 1.133 2016/03/07 21:27:58 kamil Exp $
 
 SHA1 (perl-5.22.1.tar.bz2) = 29f9b320b0299577a3e1d02e9e8ef8f26f160332
 RMD160 (perl-5.22.1.tar.bz2) = 99e3af98d80ace857da6ce28679a2e35a4360144
@@ -10,7 +10,7 @@ SHA1 (patch-ab) = c899b7221a78e74cc9b1480834baba047dd19f38
 SHA1 (patch-ac) = 4baa8f80695687abb53d4f4e1830cf86db5b2bf7
 SHA1 (patch-ah) = c1cb4ddb6db49dcfe12bb1d47911668b2318b953
 SHA1 (patch-aq) = 4bf5a76f0277b0939b2ca7720f4bb045a788b5cc
-SHA1 (patch-ca) = 5d9085d12042e4745cc0d56457b02169824fd85d
+SHA1 (patch-ca) = 32ca5f5cc9264d3bbc5295c04b4062db2a0e1b4d
 SHA1 (patch-ch) = 5b6a89c82e158bab0a5f06add48c28e600678099
 SHA1 (patch-ck) = 483e93a782e5627d3c7334d930ee11010fe7f7d8
 SHA1 (patch-cn) = d1877383e213a414562b5bb4c1e8aa785926fab7

lang/perl5/patches/patch-ca

@@ -1,11 +1,11 @@
-$NetBSD: patch-ca,v 1.24 2015/06/24 11:43:42 he Exp $
+$NetBSD: patch-ca,v 1.25 2016/03/07 21:27:58 kamil Exp $
 
 * Use "uname -r" to get OS version for *BSD.
 * Move $loclibpth to the end of $dlist, instead of the beginning.
 * Detect systems which have <fenv.h> but where using it fails.
 * Several other changes.
 
---- Configure.orig	2015-05-13 20:19:28.000000000 +0000
+--- Configure.orig	2015-10-17 12:38:37.000000000 +0000
 +++ Configure
 @@ -3439,13 +3439,14 @@ EOM
  			osvers="$3"
@@ -114,6 +114,15 @@ $NetBSD: patch-ca,v 1.24 2015/06/24 11:43:42 he Exp $
  
  : Determine list of previous versions to include in @INC
  $cat > getverlist <<EOPL
+@@ -7631,7 +7646,7 @@ echo " "
+ case "$ptrsize" in
+ '')
+ 	echo "Checking to see how big your pointers are..." >&4
+-	$cat >>try.c <<EOCP
++	$cat >try.c <<EOCP
+ #include <stdio.h>
+ #$i_stdlib I_STDLIB
+ #ifdef I_STDLIB
 @@ -7902,7 +7917,9 @@ case "$vendorprefix" in
  	vendorlibexp="$ansexp"
  	;;
@@ -207,3 +216,8 @@ $NetBSD: patch-ca,v 1.24 2015/06/24 11:43:42 he Exp $
  : see if this is a fp.h system
  set fp.h i_fp
  eval $inhdr
+@@ -24966,4 +25021,3 @@ $rm -f kit*isdone ark*isdone
+ $rm -rf UU
+ 
+ : End of Configure
+-