From ee6cc884546f9c94a274f86c6bc713be2890a6ea Mon Sep 17 00:00:00 2001
From: imarkov <imarkov@vmware.com>
Date: Wed, 18 Aug 2021 10:53:23 +0300
Subject: [PATCH] Propagate sdkconfig tristate keys as Rustc cfg conditionals

---
 Cargo.toml |  8 ++++++--
 build.rs   | 13 +++++++++++--
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 02b43145c..f63eadd84 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "esp-idf-hal"
-version = "0.17.2"
+version = "0.18.0"
 authors = ["sapir <yasapir@gmail.com>", "Ivan Markov <ivan.markov@gmail.com>"]
 edition = "2018"
 categories = ["embedded", "hardware-support"]
@@ -26,4 +26,8 @@ cfg-if = "1"
 nb = "0.1.2"
 mutex-trait = "0.2"
 embedded-hal = { version = "0.2", features = ["unproven"] }
-esp-idf-sys = { version = "0.17", optional = true, default-features = false }
+esp-idf-sys = { version = "0.18", optional = true, default-features = false }
+
+[build-dependencies]
+cargo-pio = "0.21"
+anyhow = "1"
diff --git a/build.rs b/build.rs
index a4f18732e..4af05c1fa 100644
--- a/build.rs
+++ b/build.rs
@@ -1,4 +1,7 @@
 fn main() {
+    #[cfg(not(feature = "ulp"))]
+    pio::kconfig::CfgArgs::output_propagated("ESP_IDF")?;
+
     #[cfg(not(feature = "ulp"))]
     let mcu = std::env::var("DEP_ESP_IDF_MCU").unwrap();
 
@@ -16,7 +19,13 @@ fn main() {
         println!("cargo:rustc-link-lib=static=ulp_start");
 
         println!("cargo:rerun-if-changed=build.rs");
-        println!("cargo:rerun-if-changed={}", ulp_dir.join("libulp_start.a").display());
-        println!("cargo:rerun-if-changed={}", ulp_dir.join("ulp_link.x").display());
+        println!(
+            "cargo:rerun-if-changed={}",
+            ulp_dir.join("libulp_start.a").display()
+        );
+        println!(
+            "cargo:rerun-if-changed={}",
+            ulp_dir.join("ulp_link.x").display()
+        );
     }
 }