From da9348646106ebf815b611aa3597518c91057410 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

---
 components/rustlib/CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/components/rustlib/CMakeLists.txt b/components/rustlib/CMakeLists.txt
index cc52fee..4100cff 100644
--- a/components/rustlib/CMakeLists.txt
+++ b/components/rustlib/CMakeLists.txt
@@ -23,6 +23,8 @@ set(RUST_INCLUDE_DIR "${RUST_TARGET_DIR}")
 set(RUST_INCLUDE_HEADER "${RUST_INCLUDE_DIR}/RustApi.h")
 set(RUST_STATIC_LIBRARY "${RUST_TARGET_DIR}/${CARGO_TARGET}/${CARGO_BUILD_TYPE}/librustlib.a")
 
+idf_build_get_property(sdkconfig SDKCONFIG)
+
 ExternalProject_Add(
     rustlib_project
     PREFIX "${RUST_PROJECT_DIR}"
@@ -34,6 +36,10 @@ 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:${COMPONENT_LIB},INCLUDE_DIRECTORIES>
+        CARGO_CMAKE_BUILD_LINK_LIBRARIES=$<TARGET_PROPERTY:${COMPONENT_LIB},LINK_LIBRARIES>
+        CARGO_CMAKE_BUILD_SDKCONFIG=${sdkconfig}
+        CARGO_CMAKE_BUILD_COMPILER=${CMAKE_C_COMPILER}
         cargo build ${CARGO_BUILD_ARG} ${CARGO_FEATURES_ARG}
     INSTALL_COMMAND ""
     BUILD_ALWAYS TRUE