Ports: add libiconv port

Ports/libiconv/package.sh

@@ -0,0 +1,6 @@
+#!/bin/bash ../.port_include.sh
+port=libiconv
+version=1.16
+useconfigure=true
+files="https://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.16.tar.gz libiconv-1.16.tar.gz"
+patchlevel=1

Ports/libiconv/patches/fix-autoconf.patch

@@ -0,0 +1,38 @@
+--- libiconv-1.16/build-aux/config.sub.orig	2019-10-05 22:37:52.881885592 +0100
++++ libiconv-1.16/build-aux/config.sub	2019-10-05 22:41:00.116990779 +0100
+@@ -2,7 +2,7 @@
+ # Configuration validation subroutine script.
+ #   Copyright 1992-2019 Free Software Foundation, Inc.
+ 
+-timestamp='2019-01-05'
++timestamp='2019-10-05'
+ 
+ # This file is free software; you can redistribute it and/or modify it
+ # under the terms of the GNU General Public License as published by
+@@ -1341,6 +1341,7 @@
+ 	# Each alternative MUST end in a * to match a version number.
+ 	# sysv* is not here because it comes later, after sysvr4.
+ 	gnu* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
++	     | serenity* \
+ 	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]*\
+ 	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
+ 	     | sym* | kopensolaris* | plan9* \
+--- libiconv-1.16-orig/libcharset/build-aux/config.sub	2019-04-26 19:29:05.000000000 +0100
++++ libiconv-1.16/libcharset/build-aux/config.sub	2019-10-05 23:16:08.710006227 +0100
+@@ -2,7 +2,7 @@
+ # Configuration validation subroutine script.
+ #   Copyright 1992-2019 Free Software Foundation, Inc.
+ 
+-timestamp='2019-01-05'
++timestamp='2019-10-05'
+ 
+ # This file is free software; you can redistribute it and/or modify it
+ # under the terms of the GNU General Public License as published by
+@@ -1341,6 +1341,7 @@
+ 	# Each alternative MUST end in a * to match a version number.
+ 	# sysv* is not here because it comes later, after sysvr4.
+ 	gnu* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
++	     | serenity* \
+ 	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]*\
+ 	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
+ 	     | sym* | kopensolaris* | plan9* \

Ports/libiconv/patches/fix-getprogname.patch

@@ -0,0 +1,11 @@
+--- libiconv-1.16-orig/srclib/getprogname.c	2019-04-26 19:29:00.000000000 +0100
++++ libiconv-1.16/srclib/getprogname.c	2019-10-10 23:36:34.193619582 +0100
+@@ -244,6 +244,8 @@
+         }
+     }
+   return NULL;
++# elif defined __serenity__
++  return "?";
+ # else
+ #  error "getprogname module not ported to this OS"
+ # endif