diff --git a/package/newt/Config.in b/package/newt/Config.in
index 1737f310b..1b3068a16 100644
--- a/package/newt/Config.in
+++ b/package/newt/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_NEWT
 	bool "newt"
 	depends on BR2_USE_WCHAR
+	depends on BR2_USE_MMU # slang
 	select BR2_PACKAGE_SLANG
 	select BR2_PACKAGE_POPT
 	select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT_IF_LOCALE
@@ -10,4 +11,5 @@ config BR2_PACKAGE_NEWT
 	  http://www.redhat.com/
 
 comment "newt needs a toolchain w/ wchar"
+	depends on BR2_USE_MMU
 	depends on !BR2_USE_WCHAR
diff --git a/package/slang/Config.in b/package/slang/Config.in
index 9d8f047b2..a500ff5b7 100644
--- a/package/slang/Config.in
+++ b/package/slang/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_SLANG
 	bool "slang"
+	depends on BR2_USE_MMU # fork()
 	help
 	  Multi-platform console display library.