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