package/libmodsecurity: needs threads

Fixes:
 - http://autobuild.buildroot.org/results/78391abbf87ac9c04b13d7aab7acf7d1aaade75d

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libmodsecurity/Config.in

@@ -2,6 +2,7 @@ config BR2_PACKAGE_LIBMODSECURITY
 	bool "libmodsecurity"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on !BR2_STATIC_LIBS
+	depends on BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_PACKAGE_PCRE
 	help
 	  Libmodsecurity is one component of the ModSecurity
@@ -15,5 +16,6 @@ config BR2_PACKAGE_LIBMODSECURITY
 
 	  https://github.com/SpiderLabs/ModSecurity
 
-comment "libmodsecurity needs a toolchain w/ C++, dynamic library"
-	depends on !BR2_INSTALL_LIBSTDCPP || BR2_STATIC_LIBS
+comment "libmodsecurity needs a toolchain w/ C++, dynamic library, threads"
+	depends on !BR2_INSTALL_LIBSTDCPP || BR2_STATIC_LIBS || \
+		!BR2_TOOLCHAIN_HAS_THREADS

package/nginx-modsecurity/Config.in

@@ -3,6 +3,7 @@ config BR2_PACKAGE_NGINX_MODSECURITY
 	depends on BR2_PACKAGE_NGINX_HTTP
 	depends on BR2_INSTALL_LIBSTDCPP # libmodsecurity
 	depends on !BR2_STATIC_LIBS # libmodsecurity
+	depends on BR2_TOOLCHAIN_HAS_THREADS # libmodsecurity
 	select BR2_PACKAGE_PCRE # libmodsecurity
 	select BR2_PACKAGE_LIBMODSECURITY
 	help
@@ -12,6 +13,7 @@ config BR2_PACKAGE_NGINX_MODSECURITY
 
 	  https://github.com/SpiderLabs/ModSecurity-nginx
 
-comment "nginx-modsecurity needs a toolchain w/ C++, dynamic library"
+comment "nginx-modsecurity needs a toolchain w/ C++, dynamic library, threads"
 	depends on BR2_PACKAGE_NGINX_HTTP
-	depends on !BR2_INSTALL_LIBSTDCPP || BR2_STATIC_LIBS
+	depends on !BR2_INSTALL_LIBSTDCPP || BR2_STATIC_LIBS || \
+		!BR2_TOOLCHAIN_HAS_THREADS