From 58c6387f6ca66978c0ddff873b679435060a9a3b Mon Sep 17 00:00:00 2001
From: Ivan Grokhotkov <ivan@espressif.com>
Date: Tue, 5 Oct 2021 13:08:31 +0200
Subject: [PATCH] cmake: add environment variables for esp-idf-sys support

Closes https://github.com/esp-rs/esp-idf-svc/issues/7
---
 components/rustlib/CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/components/rustlib/CMakeLists.txt b/components/rustlib/CMakeLists.txt
index cc52fee..06262d2 100644
--- a/components/rustlib/CMakeLists.txt
+++ b/components/rustlib/CMakeLists.txt
@@ -34,6 +34,9 @@ ExternalProject_Add(
     BUILD_COMMAND ${CMAKE_COMMAND} -E env
         CARGO_BUILD_TARGET=${CARGO_TARGET}
         CARGO_BUILD_TARGET_DIR=${RUST_TARGET_DIR}
+        CARGO_CMAKE_BUILD_INCLUDES=$<TARGET_PROPERTY:${COMPONENT_LIB},INCLUDE_DIRECTORIES>
+        CARGO_CMAKE_BUILD_SDKCONFIG=${sdkconfig}
+        CARGO_CMAKE_BUILD_COMPILER=${CMAKE_C_COMPILER}
         cargo build ${CARGO_BUILD_ARG} ${CARGO_FEATURES_ARG}
     INSTALL_COMMAND ""
     BUILD_ALWAYS TRUE