Resolve isset syntax error by #undef'ining it.

Rename patches while we're at it.

misc/xdelta/patches/patch-Makefile_in

@@ -0,0 +1,12 @@
+$OpenBSD: patch-Makefile_in,v 1.1 2000/10/31 15:20:18 espie Exp $
+--- Makefile.in.orig	Sat Apr 10 03:12:59 1999
++++ Makefile.in	Mon Oct 30 15:57:26 2000
+@@ -106,7 +106,7 @@ SUBDIRS = libedsio . doc
+ m4datadir = $(datadir)/aclocal
+ m4data_DATA = xdelta.m4
+ 
+-libxdelta_la_LDFLAGS = -version-info 2:0:0
++libxdelta_la_LDFLAGS = -version-info 11:1:0
+ 
+ SER_OUT = xd_edsio.h xd_edsio.c
+ 

misc/xdelta/patches/patch-ac

@@ -1,11 +0,0 @@
---- Makefile.in.orig	Thu Dec  9 18:18:46 1999
-+++ Makefile.in	Thu Dec  9 18:19:18 1999
-@@ -106,7 +106,7 @@
- m4datadir = $(datadir)/aclocal
- m4data_DATA = xdelta.m4
- 
--libxdelta_la_LDFLAGS = -version-info 2:0:0
-+libxdelta_la_LDFLAGS = -version-info 11:1:0
- 
- SER_OUT = xd_edsio.h xd_edsio.c
- 

misc/xdelta/patches/patch-libedsio_edsio_c

@@ -0,0 +1,11 @@
+$OpenBSD: patch-libedsio_edsio_c,v 1.1 2000/10/31 15:20:18 espie Exp $
+--- libedsio/edsio.c.orig	Tue Oct 31 16:13:14 2000
++++ libedsio/edsio.c	Tue Oct 31 16:13:22 2000
+@@ -23,6 +23,7 @@
+ 
+ #include "maketime.h"
+ 
++#undef isset
+ /*#define DEBUG_PROPS*/
+ 
+ /* Event delivery

misc/xdelta/patches/patch-ltconfig

@@ -1,6 +1,7 @@
---- ltconfig.orig	Fri Apr  9 20:58:53 1999
-+++ ltconfig	Thu Dec  9 18:18:15 1999
-@@ -1796,6 +1796,7 @@
+$OpenBSD: patch-ltconfig,v 1.1 2000/10/31 15:20:18 espie Exp $
+--- ltconfig.orig	Sat Apr 10 02:58:53 1999
++++ ltconfig	Mon Oct 30 15:57:26 2000
+@@ -1796,6 +1796,7 @@ openbsd*)
    library_names_spec='${libname}${release}.so$versuffix ${libname}.so$versuffix'
    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
    shlibpath_var=LD_LIBRARY_PATH

misc/xdelta/patches/patch-ltmain_sh

@@ -1,6 +1,7 @@
---- ltmain.sh.orig	Thu Dec  9 17:55:27 1999
-+++ ltmain.sh	Thu Dec  9 17:55:42 1999
-@@ -3326,40 +3326,6 @@
+$OpenBSD: patch-ltmain_sh,v 1.1 2000/10/31 15:20:18 espie Exp $
+--- ltmain.sh.orig	Sat Apr 10 02:58:53 1999
++++ ltmain.sh	Mon Oct 30 15:57:26 2000
+@@ -3326,40 +3326,6 @@ libdir='$install_libdir'\
      # Exit here if they wanted silent mode.
      test "$show" = : && exit 0