kismet: mark as not available for static builds

This reverts commit a3365ebf72fc34c71e28191f107280b9d7c825a1, and
marks kismet as not available for static builds.

Commit a3365ebf72fc34c71e28191f107280b9d7c825a1 is indeed
insufficient, since kismet uses <dlfcn.h> in two places, both in
kismet_server and kismet_client. And it's fairly unlikely that kismet
will be used in pure static environments, so let's not support this
use case.

Fixes:

  http://autobuild.buildroot.net/results/c24/c24e3e325df9748e9959fe79f7026d24f118dffd/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/kismet/Config.in

@@ -1,12 +1,14 @@
-comment "kismet needs a toolchain w/ threads, C++"
+comment "kismet needs a toolchain w/ threads, C++, dynamic library"
 	depends on BR2_USE_MMU
-	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS || \
+		BR2_STATIC_LIBS
 
 config BR2_PACKAGE_KISMET
 	bool "kismet"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_TOOLCHAIN_HAS_THREADS # libnl
 	depends on BR2_USE_MMU # fork()
+	depends on !BR2_STATIC_LIBS # dlfcn.h
 	select BR2_PACKAGE_NCURSES
 	select BR2_PACKAGE_NCURSES_TARGET_PANEL
 	select BR2_PACKAGE_LIBPCAP

package/kismet/kismet.mk

@@ -15,10 +15,6 @@ KISMET_LICENSE_FILES = debian/copyright
 # We touch configure.in:
 KISMET_AUTORECONF = YES
 
-ifeq ($(BR2_STATIC_LIBS),y)
-KISMET_CONF_ENV = LIBS="-lpcap $(shell $(STAGING_DIR)/usr/bin/pcap-config --static --additional-libs)"
-endif
-
 ifeq ($(BR2_PACKAGE_PCRE),y)
 KISMET_DEPENDENCIES += pcre
 endif