[Buildroot] [PATCH 1/1] package/python-zopfli: needs C++

[Fabrice Fontaine]

python-zopfli needs C++ since its addition in commit
53972c82964dd1337dff4ccbcdd484d243aef0ba:

nios2-buildroot-linux-gnu-gcc.br_real: error: zopfli/src/zopflipng/lodepng/lodepng.cpp: C++ compiler not installed on this system

Fixes:
 - http://autobuild.buildroot.org/results/442ae4a02e691b4039d1694620f6284906cdc97f

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
---
 package/python-weasyprint/Config.in | 2 +-
 package/python-zopfli/Config.in     | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/package/python-weasyprint/Config.in b/package/python-weasyprint/Config.in
index 7fe99c3951..18d72d742e 100644
--- a/package/python-weasyprint/Config.in
+++ b/package/python-weasyprint/Config.in
@@ -1,6 +1,6 @@
 config BR2_PACKAGE_PYTHON_WEASYPRINT
 	bool "python-weasyprint"
-	depends on BR2_INSTALL_LIBSTDCPP # python-brotli
+	depends on BR2_INSTALL_LIBSTDCPP # python-brotli, python-zopfli
 	select BR2_PACKAGE_PYTHON_BROTLI # runtime
 	select BR2_PACKAGE_PYTHON_CFFI # runtime
 	select BR2_PACKAGE_PYTHON_CSSSELECT2 # runtime
diff --git a/package/python-zopfli/Config.in b/package/python-zopfli/Config.in
index 0b1ebca85c..dc68a2fef0 100644
--- a/package/python-zopfli/Config.in
+++ b/package/python-zopfli/Config.in
@@ -1,6 +1,10 @@
 config BR2_PACKAGE_PYTHON_ZOPFLI
 	bool "python-zopfli"
+	depends on BR2_INSTALL_LIBSTDCPP
 	help
 	  Zopfli module for python.
 
 	  https://github.com/fonttools/py-zopfli
+
+comment "python-zopfli needs a toolchain w/ C++"
+	depends on !BR2_INSTALL_LIBSTDCPP
-- 
2.35.1