所以最近我一直在为ARM编译一个rust项目。它可以完美地编译x86，但每当我切换到ARM目标时，它都找不到Openssl安装，我已经安装了pkg配置，并且可以正常工作，所以这不是错误。不知道如何成功设置OPENSSL_DIR变量，也不知道自己在哪里找到安装。错误完全粘贴在下方
error: failed to run custom build command for `openssl-sys v0.9.61`
Caused by:
process didn't exit successfully: `/home/bob/yagna/blueberry/debug/build/openssl-sys-aae22c7790b14724/build-script-main` (exit code: 101)
--- stdout
cargo:rustc-cfg=const_fn
cargo:rerun-if-env-changed=ARMV7_UNKNOWN_LINUX_GNUEABIHF_OPENSSL_LIB_DIR
ARMV7_UNKNOWN_LINUX_GNUEABIHF_OPENSSL_LIB_DIR unset
cargo:rerun-if-env-changed=OPENSSL_LIB_DIR
OPENSSL_LIB_DIR unset
cargo:rerun-if-env-changed=ARMV7_UNKNOWN_LINUX_GNUEABIHF_OPENSSL_INCLUDE_DIR
ARMV7_UNKNOWN_LINUX_GNUEABIHF_OPENSSL_INCLUDE_DIR unset
cargo:rerun-if-env-changed=OPENSSL_INCLUDE_DIR
OPENSSL_INCLUDE_DIR unset
cargo:rerun-if-env-changed=ARMV7_UNKNOWN_LINUX_GNUEABIHF_OPENSSL_DIR
ARMV7_UNKNOWN_LINUX_GNUEABIHF_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_armv7-unknown-linux-gnueabihf
cargo:rerun-if-env-changed=PKG_CONFIG_ALLOW_CROSS_armv7_unknown_linux_gnueabihf
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_armv7-unknown-linux-gnueabihf
cargo:rerun-if-env-changed=PKG_CONFIG_armv7_unknown_linux_gnueabihf
cargo:rerun-if-env-changed=TARGET_PKG_CONFIG
cargo:rerun-if-env-changed=PKG_CONFIG
cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_armv7-unknown-linux-gnueabihf
cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_armv7_unknown_linux_gnueabihf
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.nn Install a sysroot for the target platform and configure it vian PKG_CONFIG_SYSROOT_DIR and PKG_CONFIG_PATH, or install an cross-compiling wrapper for pkg-config and set it vian PKG_CONFIG environment variable."
--- stderr
thread 'main' panicked at '
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 = x86_64-unknown-linux-gnu
$TARGET = armv7-unknown-linux-gnueabihf
openssl-sys = 0.9.61
', /home/bob/.cargo/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.9.61/build/find_normal.rs:174:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace货物配置文件也如下所示
[build]
target-dir="/home/bob/yagna/blueberry"
target="armv7-unknown-linux-gnueabihf"
linker = "arm-linux-gnueabihf-gcc"
[target.armv7-unknown-linux-gnueabihf]
linker = "arm-linux-gnueabihf-gcc"不知该怎么办，这个ubuntu，我已经安装了libssl-dev，并且是最新的，目标是使用rustup和sudo-apt-get添加和安装的。不确定如何修复此
如果您使用OpenSSL为armhf编译某些东西，那么您需要为该体系结构安装libssl-dev包。这将包括通过dpkg --add-architecture armhf为其设置dpkg，然后执行apt-get update和apt-get install libssl-dev:armhf。
请注意，可能不可能同时安装多个版本的libssl-dev，以一种不会最终删除大量软件包的方式解决依赖关系可能很棘手。Debian风格的multiarch非常有能力，但有时可能有点麻烦。
你绝对不应该提供OpenSSL，因为它经常发布安全更新。同样，静态链接OpenSSL也是个坏主意。如果你做供应商或静态链接，除非你非常小心地保持它的最新，否则你的代码将包含安全漏洞。