connman: disable for static builds

It needs dlopen(), otherwise it will fail at the configure phase with a
message like this one:

checking for dlopen in -ldl... no
configure: error: dynamic linking loader is required

Fixes:
  http://autobuild.buildroot.net/results/647/64742a1d3a07f86a7c801da5ef30892c1f760031/

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/connman/Config.in

@@ -8,6 +8,7 @@ config BR2_PACKAGE_CONNMAN
 	depends on BR2_INET_IPV6
 	depends on BR2_TOOLCHAIN_HAS_THREADS # dbus, libglib2
 	depends on BR2_USE_MMU # dbus, libglib2
+	depends on !BR2_PREFER_STATIC_LIB # needs dlopen()
 	help
 	  The Connection Manager (ConnMan) project provides a daemon
 	  for managing internet connections within embedded devices
@@ -65,6 +66,6 @@ config BR2_PACKAGE_CONNMAN_CLIENT
 
 endif # BR2_PACKAGE_CONNMAN
 
-comment "connman needs a toolchain w/ IPv6, wchar, threads, resolver"
+comment "connman needs a toolchain w/ IPv6, wchar, threads, resolver, dynamic library"
 	depends on BR2_USE_MMU && !BR2_avr32
-	depends on !BR2_USE_WCHAR || !BR2_INET_IPV6 || !BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_USE_WCHAR || !BR2_INET_IPV6 || !BR2_TOOLCHAIN_HAS_THREADS || BR2_PREFER_STATIC_LIB