Fix CI

Author: ivmarkov

.cargo/config.toml

@@ -23,15 +23,14 @@ linker = "ldproxy"
 
 [target.riscv32imc-esp-espidf]
 linker = "ldproxy"
-# Necessary for riscv MCUs; see also https://github.com/ivmarkov/embuild/issues/16
-rustflags = ["-C", "default-linker-libraries"]
+# TODO: Is `["-C", "default-linker-libraries"]` still necessary? See https://github.com/ivmarkov/embuild/issues/16
 # Uncomment for ESP-IDF 5 and later. Don't forget to also uncomment the `ESP_IDF_VERSION = "release/v5.0"`parameter in the `[env]` section below
-#rustflags = ["--cfg", "espidf_time64", "-C", "default-linker-libraries"]
+#rustflags = ["--cfg", "espidf_time64"]
 
 [target.riscv32imac-esp-espidf]
 linker = "ldproxy"
 # Uncomment for ESP-IDF 5 and later. Don't forget to also uncomment the `ESP_IDF_VERSION = "release/v5.0"`parameter in the `[env]` section below
-rustflags = ["--cfg", "espidf_time64", "-C", "default-linker-libraries"]
+#rustflags = ["--cfg", "espidf_time64"]
 
 [unstable]
 build-std = ["std", "panic_abort"]

Cargo.toml

@@ -16,6 +16,7 @@ polling = { git = "https://github.com/esp-rs-compat/polling" }
 socket2 = { git = "https://github.com/esp-rs-compat/socket2" }
 #getrandom = { version = "0.2", git = "https://github.com/esp-rs-compat/getrandom.git" }
 #getrandom1 = { version = "0.1", git = "https://github.com/esp-rs-compat/getrandom.git", package = "getrandom", branch = "0.1" }
+esp-idf-sys = { git = "https://github.com/esp-rs/esp-idf-sys" }
 
 [profile.release]
 opt-level = "s"