May I ask if there is a switch that can turn off some OpenSSL functions that I cannot use

[androiddisk]

openssl = { version = "0.10.64", features = ["vendored"] }
[profile.release]
strip = true
opt-level = "z"
lto = true

After adding OpenSSL, the compiled binary is 3M larger

openssl = { path = "./src/rust-openssl/openssl", features = ["vendored"] }

Now I will integrate the source code of OpenSSL into the project for use. I hope to find a way to streamline OpenSSL functionality.
There are too many features in OpenSSL, and I hope to disable some of them, such as RSA.
Thank you

[androiddisk]

I tried compiling from Linux to Android. I don't want dynamic linking, I just want static compilation. May I ask if there is a suitable method? Thank you

[Skepfyr]

If you want a heavily customized OpenSSL, then your best bet is to compile it yourself and configure rust-openssl to statically link against that:

Manual

A set of environment variables can be used to point openssl-sys towards an OpenSSL installation. They will override the automatic detection logic.

• OPENSSL_DIR - If specified, the directory of an OpenSSL installation. The directory should contain lib and include subdirectories containing the libraries and headers respectively.
• OPENSSL_LIB_DIR and OPENSSL_INCLUDE_DIR - If specified, the directories containing the OpenSSL libraries and headers respectively. This can be used if the OpenSSL installation is split in a nonstandard directory layout.
• OPENSSL_STATIC - If set, the crate will statically link to OpenSSL rather than dynamically link.
• OPENSSL_LIBS - If set, a :-separated list of library names to link to (e.g. ssl:crypto). This can be used if nonstandard library names were used for whatever reason.
• OPENSSL_NO_VENDOR - If set, always find OpenSSL in the system, even if the vendored feature is enabled.

Additionally, these variables can be prefixed with the upper-cased target architecture (e.g. X86_64_UNKNOWN_LINUX_GNU_OPENSSL_DIR), which can be useful when cross compiling.

[androiddisk]

Okay, thank you