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rust-openssl-cannot-link-statically

This repository demonstrates rust-openssl cannot be statically linked with env OPENSSL_STATIC set in .cargo/config.toml under project root.

Summary

Related issues go as

The phenomenon is: any library which falls into /usr/lib/ won't be statically linked (which is basically all libraries found by pkg-config)

Prerequisite

  • openssl: 0.10.42

Reproduction

1. Start the container as building env

docker run -it --rm     \
  -v $PWD:/workspace    \
  -w /workspace         \
  rust:1.65.0-bullseye  \
  bash

2. Build the project within the started container

cargo build

3. Check linkage with ldd

ldd target/debug/rust-openssl-cannot-link-statically

Got output log as

        linux-vdso.so.1 (0x00007ffc00d2c000)
        libssl.so.1.1 => /usr/lib/x86_64-linux-gnu/libssl.so.1.1 (0x00007ff37e652000)
        libcrypto.so.1.1 => /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1 (0x00007ff37e35e000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007ff37e358000)
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007ff37e33e000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007ff37e31c000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007ff37e147000)
        /lib64/ld-linux-x86-64.so.2 (0x00007ff37e745000)

where libssl.a and libcrypto.a should be used instead of libssl.so.1.1 and libcrypto.so.1.1.

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