package/rsyslog: needs MMU (fork)

fixes http://autobuild.buildroot.net/results/5c0/5c03bf3a1e4e922a18b40f854ff59d905a93a89f/

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/rsyslog/Config.in

@@ -8,6 +8,7 @@ config BR2_PACKAGE_RSYSLOG
 	select BR2_PACKAGE_UTIL_LINUX_LIBUUID
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	depends on BR2_LARGEFILE # util-linux
+	depends on BR2_USE_MMU # fork()
 	depends on BR2_USE_WCHAR # util-linux
 	help
 	  Rsyslog is a powerful and flexible syslog implementation
@@ -15,4 +16,5 @@ config BR2_PACKAGE_RSYSLOG
 	  http://www.rsyslog.com
 
 comment "rsyslog needs a toolchain w/ largefile, wchar, threads"
+	depends on BR2_USE_MMU
 	depends on !BR2_TOOLCHAIN_HAS_THREADS || !BR2_LARGEFILE || !BR2_USE_WCHAR