diff --git a/package/libgeotiff/Config.in b/package/libgeotiff/Config.in
index 6ac8a51f7c..7ed296fb25 100644
--- a/package/libgeotiff/Config.in
+++ b/package/libgeotiff/Config.in
@@ -3,6 +3,7 @@ config BR2_PACKAGE_LIBGEOTIFF
 	depends on BR2_INSTALL_LIBSTDCPP # proj
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 # proj
 	depends on BR2_TOOLCHAIN_HAS_THREADS # proj
+	depends on BR2_USE_WCHAR # proj
 	select BR2_PACKAGE_PROJ
 	select BR2_PACKAGE_TIFF
 	help
@@ -11,6 +12,7 @@ config BR2_PACKAGE_LIBGEOTIFF
 
 	  https://github.com/OSGeo/libgeotiff
 
-comment "libgeotiff needs a toolchain w/ C++, gcc >= 4.7, threads"
+comment "libgeotiff needs a toolchain w/ C++, gcc >= 4.7, threads, wchar"
 	depends on !BR2_INSTALL_LIBSTDCPP || \
-		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 || !BR2_TOOLCHAIN_HAS_THREADS
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 || \
+		!BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR
diff --git a/package/proj/Config.in b/package/proj/Config.in
index ced386f465..1952fc7d9a 100644
--- a/package/proj/Config.in
+++ b/package/proj/Config.in
@@ -3,6 +3,7 @@ config BR2_PACKAGE_PROJ
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 # C++11
 	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_USE_WCHAR
 	select BR2_PACKAGE_SQLITE
 	help
 	  proj.4 is a standard UNIX filter function which converts
@@ -13,6 +14,7 @@ config BR2_PACKAGE_PROJ
 
 	  http://proj4.org/
 
-comment "proj needs a toolchain w/ C++, gcc >= 4.7, threads"
+comment "proj needs a toolchain w/ C++, gcc >= 4.7, threads, wchar"
 	depends on !BR2_INSTALL_LIBSTDCPP || \
-		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 || !BR2_TOOLCHAIN_HAS_THREADS
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 || \
+		!BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR