diff --git a/package/boost/Config.in b/package/boost/Config.in
index 92d59c2ec1..68004b6cc1 100644
--- a/package/boost/Config.in
+++ b/package/boost/Config.in
@@ -77,6 +77,10 @@ config BR2_PACKAGE_BOOST_EXCEPTION
 
 config BR2_PACKAGE_BOOST_FILESYSTEM
 	bool "boost-filesystem"
+	depends on BR2_USE_WCHAR
+
+comment "boost-filesystem needs a toolchain w/ wchar"
+	depends on !BR2_USE_WCHAR
 
 config BR2_PACKAGE_BOOST_GRAPH
 	bool "boost-graph"
diff --git a/package/cc-tool/Config.in b/package/cc-tool/Config.in
index be115997a3..f8e4531e26 100644
--- a/package/cc-tool/Config.in
+++ b/package/cc-tool/Config.in
@@ -3,6 +3,7 @@ config BR2_PACKAGE_CC_TOOL
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	depends on BR2_PACKAGE_BOOST_ARCH_SUPPORTS
+	depends on BR2_USE_WCHAR # boost-filesystem
 	select BR2_PACKAGE_LIBUSB
 	select BR2_PACKAGE_BOOST
 	select BR2_PACKAGE_BOOST_PROGRAM_OPTIONS
@@ -17,6 +18,6 @@ config BR2_PACKAGE_CC_TOOL
 
 	  http://sourceforge.net/projects/cctool/
 
-comment "cc-tool needs a toolchain w/ C++, threads"
+comment "cc-tool needs a toolchain w/ C++, threads, wchar"
 	depends on BR2_PACKAGE_BOOST_ARCH_SUPPORTS
-	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR