Cross compiling to android error

[jianshu93]

Hi Team,

I was trying to cross compiling it on my macOS to aarch-linux-android, all linkers are correctly chosen (I tested for several other Rust programs) but failed with the following error:

Jianshus-MBP-2:reqwest-middleware jianshuzhao$ cargo build --release --target aarch64-linux-android Compiling cfg-if v1.0.0 Compiling pin-project-lite v0.2.14 Compiling bytes v1.7.1 Compiling futures-core v0.3.30 Compiling libc v0.2.158 Compiling parking_lot_core v0.9.10 Compiling lock_api v0.4.12 Compiling futures-sink v0.3.30 Compiling scopeguard v1.2.0 Compiling smallvec v1.13.2 Compiling once_cell v1.19.0 Compiling slab v0.4.9 Compiling vcpkg v0.2.15 Compiling pkg-config v0.3.30 Compiling futures-io v0.3.30 Compiling futures-channel v0.3.30 Compiling itoa v1.0.11 Compiling memchr v2.7.4 Compiling pin-utils v0.1.0 Compiling futures-task v0.3.30 Compiling fnv v1.0.7 Compiling ring v0.17.8 Compiling tracing-core v0.1.32 Compiling equivalent v1.0.1 Compiling http v1.1.0 Compiling rustls-pki-types v1.8.0 Compiling hashbrown v0.14.5 Compiling signal-hook-registry v1.4.2 Compiling mio v1.0.2 Compiling parking_lot v0.12.3 Compiling socket2 v0.5.7 Compiling getrandom v0.2.15 Compiling openssl-sys v0.9.103 Compiling futures-util v0.3.30 Compiling httparse v1.9.4 Compiling http-body v1.0.1 Compiling tokio v1.39.3 Compiling indexmap v2.4.0 Compiling tracing v0.1.40 Compiling untrusted v0.9.0 Compiling spin v0.9.8 Compiling try-lock v0.2.5 Compiling foreign-types-shared v0.1.1 Compiling atomic-waker v1.1.2 Compiling openssl v0.10.66 Compiling foreign-types v0.3.2 Compiling want v0.3.1 Compiling pin-project v1.1.5 Compiling openssl-macros v0.1.1 Compiling bitflags v2.6.0 Compiling tower-layer v0.3.3 error: failed to run custom build command for openssl-sys v0.9.103

Caused by: process didn't exit successfully: /Users/jianshuzhao/Github/reqwest-middleware/target/release/build/openssl-sys-d9b14df7064fed8a/build-script-main (exit status: 101) --- stdout cargo:rustc-check-cfg=cfg(osslconf, values("OPENSSL_NO_OCB", "OPENSSL_NO_SM4", "OPENSSL_NO_SEED", "OPENSSL_NO_CHACHA", "OPENSSL_NO_CAST", "OPENSSL_NO_IDEA", "OPENSSL_NO_CAMELLIA", "OPENSSL_NO_RC4", "OPENSSL_NO_BF", "OPENSSL_NO_PSK", "OPENSSL_NO_DEPRECATED_3_0", "OPENSSL_NO_SCRYPT", "OPENSSL_NO_SM3", "OPENSSL_NO_RMD160", "OPENSSL_NO_EC2M", "OPENSSL_NO_OCSP", "OPENSSL_NO_CMS", "OPENSSL_NO_COMP", "OPENSSL_NO_SOCK", "OPENSSL_NO_STDIO")) cargo:rustc-check-cfg=cfg(openssl) cargo:rustc-check-cfg=cfg(libressl) cargo:rustc-check-cfg=cfg(boringssl) cargo:rustc-check-cfg=cfg(libressl250) cargo:rustc-check-cfg=cfg(libressl251) cargo:rustc-check-cfg=cfg(libressl252) cargo:rustc-check-cfg=cfg(libressl261) cargo:rustc-check-cfg=cfg(libressl270) cargo:rustc-check-cfg=cfg(libressl271) cargo:rustc-check-cfg=cfg(libressl273) cargo:rustc-check-cfg=cfg(libressl280) cargo:rustc-check-cfg=cfg(libressl281) cargo:rustc-check-cfg=cfg(libressl291) cargo:rustc-check-cfg=cfg(libressl310) cargo:rustc-check-cfg=cfg(libressl321) cargo:rustc-check-cfg=cfg(libressl332) cargo:rustc-check-cfg=cfg(libressl340) cargo:rustc-check-cfg=cfg(libressl350) cargo:rustc-check-cfg=cfg(libressl360) cargo:rustc-check-cfg=cfg(libressl361) cargo:rustc-check-cfg=cfg(libressl370) cargo:rustc-check-cfg=cfg(libressl380) cargo:rustc-check-cfg=cfg(libressl381) cargo:rustc-check-cfg=cfg(libressl382) cargo:rustc-check-cfg=cfg(libressl390) cargo:rustc-check-cfg=cfg(libressl400) cargo:rustc-check-cfg=cfg(ossl101) cargo:rustc-check-cfg=cfg(ossl102) cargo:rustc-check-cfg=cfg(ossl102f) cargo:rustc-check-cfg=cfg(ossl102h) cargo:rustc-check-cfg=cfg(ossl110) cargo:rustc-check-cfg=cfg(ossl110f) cargo:rustc-check-cfg=cfg(ossl110g) cargo:rustc-check-cfg=cfg(ossl110h) cargo:rustc-check-cfg=cfg(ossl111) cargo:rustc-check-cfg=cfg(ossl111b) cargo:rustc-check-cfg=cfg(ossl111c) cargo:rustc-check-cfg=cfg(ossl111d) cargo:rustc-check-cfg=cfg(ossl300) cargo:rustc-check-cfg=cfg(ossl310) cargo:rustc-check-cfg=cfg(ossl320) cargo:rustc-check-cfg=cfg(ossl330) cargo:rerun-if-env-changed=AARCH64_LINUX_ANDROID_OPENSSL_LIB_DIR AARCH64_LINUX_ANDROID_OPENSSL_LIB_DIR unset cargo:rerun-if-env-changed=OPENSSL_LIB_DIR OPENSSL_LIB_DIR unset cargo:rerun-if-env-changed=AARCH64_LINUX_ANDROID_OPENSSL_INCLUDE_DIR AARCH64_LINUX_ANDROID_OPENSSL_INCLUDE_DIR unset cargo:rerun-if-env-changed=OPENSSL_INCLUDE_DIR OPENSSL_INCLUDE_DIR unset cargo:rerun-if-env-changed=AARCH64_LINUX_ANDROID_OPENSSL_DIR AARCH64_LINUX_ANDROID_OPENSSL_DIR unset cargo:rerun-if-env-changed=OPENSSL_DIR OPENSSL_DIR unset cargo:rerun-if-env-changed=OPENSSL_NO_PKG_CONFIG cargo:rerun-if-env-changed=PKG_CONFIG_ALLOW_CROSS_aarch64-linux-android cargo:rerun-if-env-changed=PKG_CONFIG_ALLOW_CROSS_aarch64_linux_android cargo:rerun-if-env-changed=TARGET_PKG_CONFIG_ALLOW_CROSS cargo:rerun-if-env-changed=PKG_CONFIG_ALLOW_CROSS cargo:rerun-if-env-changed=PKG_CONFIG_aarch64-linux-android cargo:rerun-if-env-changed=PKG_CONFIG_aarch64_linux_android cargo:rerun-if-env-changed=TARGET_PKG_CONFIG cargo:rerun-if-env-changed=PKG_CONFIG cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_aarch64-linux-android cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_aarch64_linux_android cargo:rerun-if-env-changed=TARGET_PKG_CONFIG_SYSROOT_DIR cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR run pkg_config fail: pkg-config has not been configured to support cross-compilation.

Install a sysroot for the target platform and configure it via PKG_CONFIG_SYSROOT_DIR and PKG_CONFIG_PATH, or install a cross-compiling wrapper for pkg-config and set it via PKG_CONFIG environment variable.

--- stderr thread 'main' panicked at /Users/jianshuzhao/.cargo/registry/src/index.crates.io-6f17d22bba15001f/openssl-sys-0.9.103/build/find_normal.rs:190:5:

Could not find directory of OpenSSL installation, and this -sys crate cannot proceed without this knowledge. If OpenSSL is installed and this crate had trouble finding it, you can set the OPENSSL_DIR environment variable for the compilation process.

Make sure you also have the development packages of openssl installed. For example, libssl-dev on Ubuntu or openssl-devel on Fedora.

If you're in a situation where you think the directory should be found automatically, please open a bug at https://github.com/sfackler/rust-openssl and include information about your system as well as this message.

$HOST = aarch64-apple-darwin $TARGET = aarch64-linux-android openssl-sys = 0.9.103

note: run with RUST_BACKTRACE=1 environment variable to display a backtrace warning: build failed, waiting for other jobs to finish...

Any idea how I can solve it?

Thanks,

Jianshu