diff --git a/package/piglit/Config.in b/package/piglit/Config.in
index 736fd95d71..5e957a555a 100644
--- a/package/piglit/Config.in
+++ b/package/piglit/Config.in
@@ -6,6 +6,7 @@ config BR2_PACKAGE_PIGLIT
 		BR2_PACKAGE_WAFFLE_SUPPORTS_WAYLAND || \
 		BR2_PACKAGE_WAFFLE_SUPPORTS_X11_EGL || \
 		BR2_PACKAGE_WAFFLE_SUPPORTS_GBM
+	depends on BR2_INSTALL_LIBSTDCPP # python-numpy
 	depends on BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL # python-numpy
 	select BR2_PACKAGE_LIBDRM if BR2_PACKAGE_HAS_LIBGL
 	select BR2_PACKAGE_LIBPNG
@@ -31,5 +32,6 @@ config BR2_PACKAGE_PIGLIT
 
 	  https://piglit.freedesktop.org
 
-comment "piglit needs glibc or musl"
-	depends on !(BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL)
+comment "piglit needs a glibc or musl toolchain w/ C++"
+	depends on !BR2_INSTALL_LIBSTDCPP || \
+		!(BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL)
diff --git a/package/python-numpy/Config.in b/package/python-numpy/Config.in
index a65164d9d5..132c3f7a82 100644
--- a/package/python-numpy/Config.in
+++ b/package/python-numpy/Config.in
@@ -16,6 +16,7 @@ config BR2_PACKAGE_PYTHON_NUMPY_ARCH_SUPPORTS
 config BR2_PACKAGE_PYTHON_NUMPY
 	bool "python-numpy"
 	depends on BR2_PACKAGE_PYTHON_NUMPY_ARCH_SUPPORTS
+	depends on BR2_INSTALL_LIBSTDCPP
 	# python-numpy needs fenv.h which is not provided by uclibc
 	depends on BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL
 	help
@@ -27,6 +28,7 @@ config BR2_PACKAGE_PYTHON_NUMPY
 
 	  http://www.numpy.org/
 
-comment "python-numpy needs glibc or musl"
+comment "python-numpy needs a glibc or musl toolchain w/ C++"
 	depends on BR2_PACKAGE_PYTHON_NUMPY_ARCH_SUPPORTS
-	depends on !(BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL)
+	depends on !BR2_INSTALL_LIBSTDCPP || \
+		!(BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL)
diff --git a/package/python-zlmdb/Config.in b/package/python-zlmdb/Config.in
index ac4ee05442..8eba2d7946 100644
--- a/package/python-zlmdb/Config.in
+++ b/package/python-zlmdb/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_PYTHON_ZLMDB
 	bool "python-zlmdb"
 	depends on BR2_PACKAGE_PYTHON_NUMPY_ARCH_SUPPORTS # python-numpy
+	depends on BR2_INSTALL_LIBSTDCPP # python-numpy
 	depends on BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL # python-numpy
 	select BR2_PACKAGE_PYTHON_CBOR2 # runtime
 	select BR2_PACKAGE_PYTHON_CFFI # runtime
@@ -17,6 +18,7 @@ config BR2_PACKAGE_PYTHON_ZLMDB
 
 	  https://github.com/crossbario/zlmdb
 
-comment "python-zlmdb needs glibc or musl"
+comment "python-zlmdb needs a glibc or musl toolchain w/ C++"
 	depends on BR2_PACKAGE_PYTHON_NUMPY_ARCH_SUPPORTS
-	depends on !(BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL)
+	depends on !BR2_INSTALL_LIBSTDCPP || \
+		!(BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL)