diff --git a/0001-Don-t-require-zlib-in-pkgconfig-if-it-was-found-with.patch b/0001-Don-t-require-zlib-in-pkgconfig-if-it-was-found-with.patch
new file mode 100644
index 0000000..82163e1
--- /dev/null
+++ b/0001-Don-t-require-zlib-in-pkgconfig-if-it-was-found-with.patch
@@ -0,0 +1,58 @@
+From 644b8aa5f6235ee57a8a91a1db5a02174f57445c Mon Sep 17 00:00:00 2001
+From: David Woodhouse <David.Woodhouse@intel.com>
+Date: Thu, 21 Jun 2012 17:04:23 +0100
+Subject: [PATCH] Don't require zlib in pkgconfig if it was found without it
+
+Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
+---
+ configure.ac      |    2 +-
+ openconnect.pc.in |    2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 8216fe0..2ff8a54 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -359,7 +359,7 @@ AM_CONDITIONAL(HAVE_SYMBOL_VERSIONING, [test "${symvers}" != "no"])
+ 
+ PKG_CHECK_MODULES(LIBXML2, libxml-2.0)
+ 
+-PKG_CHECK_MODULES(ZLIB, zlib, [],
++PKG_CHECK_MODULES(ZLIB, zlib, [AC_SUBST(ZLIB_PC, [zlib])],
+ 		  [oldLIBS="$LIBS"
+ 		  LIBS="$LIBS -lz" 
+ 		  AC_MSG_CHECKING([for zlib without pkg-config])
+diff --git a/openconnect.pc.in b/openconnect.pc.in
+index 23b818f..012431f 100644
+--- a/openconnect.pc.in
++++ b/openconnect.pc.in
+@@ -7,7 +7,7 @@ includedir=@includedir@
+ Name: openconnect
+ Description: OpenConnect VPN client
+ Version: @VERSION@
+-Requires.private: @LIBPROXY_PC@ zlib @SSL_LIBRARY@ @P11KIT_PC@ libxml-2.0
++Requires.private: @LIBPROXY_PC@ @ZLIB_PC@ @SSL_LIBRARY@ @P11KIT_PC@ libxml-2.0
+ Libs: -L${libdir} -lopenconnect
+ Libs.private: @LIBINTL@
+ Cflags: -I${includedir}
+-- 
+1.7.10.2
+
+--- ./configure.400	2012-06-21 17:05:58.065101753 +0100
++++ ./configure	2012-06-21 17:06:06.903976972 +0100
+@@ -623,6 +623,7 @@ PYTHON
+ LIBPROXY_PC
+ LIBPROXY_LIBS
+ LIBPROXY_CFLAGS
++ZLIB_PC
+ ZLIB_LIBS
+ ZLIB_CFLAGS
+ LIBXML2_LIBS
+@@ -12702,6 +12703,7 @@ else
+ 	ZLIB_LIBS=$pkg_cv_ZLIB_LIBS
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+ $as_echo "yes" >&6; }
++	ZLIB_PC=zlib
+ 
+ fi
+ 
diff --git a/openconnect.spec b/openconnect.spec
index 6271a4c..719b65d 100644
--- a/openconnect.spec
+++ b/openconnect.spec
@@ -15,7 +15,7 @@
 
 Name:		openconnect
 Version:	4.00
-Release:	2%{?dist}
+Release:	3%{?dist}
 Summary:	Open client for Cisco AnyConnect VPN
 
 Group:		Applications/Internet
@@ -24,6 +24,7 @@ URL:		http://www.infradead.org/openconnect.html
 Source0:	ftp://ftp.infradead.org/pub/openconnect/openconnect-%{version}.tar.gz
 Source1:	library15.c
 Source2:	libopenconnect15.map
+Patch1:		0001-Don-t-require-zlib-in-pkgconfig-if-it-was-found-with.patch
 BuildRoot:	%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 BuildRequires:	openssl-devel libxml2-devel gtk2-devel GConf2-devel dbus-devel
@@ -54,6 +55,7 @@ HTTPS and DTLS protocols.
 Summary: Development package for OpenConnect VPN authentication tools
 Group: Applications/Internet
 Requires: %{name} = %{version}-%{release}
+Requires: openssl-devel zlib-devel
 
 %description devel
 This package provides the core HTTP and authentication support from
@@ -72,6 +74,7 @@ of the library.
 
 %prep
 %setup -q
+%patch1 -p1
 %if %{build_compat_lib}
 cp %{SOURCE1} .
 cp %{SOURCE2} libopenconnect15.map.in
@@ -147,6 +150,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/pkgconfig/openconnect.pc
 
 %changelog
+* Thu Jun 21 2012 David Woodhouse <David.Woodhouse@intel.com> - 4.00-3
+- Remove zlib from openconnect.pc dependencies
+
 * Thu Jun 21 2012 David Woodhouse <David.Woodhouse@intel.com> - 4.00-2
 - Fix dependencies for RHEL[56]