wasm-ld cannot find -lcrypto after building OpenSSL with make openssl

[Yaxuan-w]

I ran into an issue when writing the witness grate and trying to use the OpenSSL built by make openssl.

When compiling the grate, I get the following error:

lind@7abae280c536:~/lind-wasm-example-grates/examples/witness-grate$ ./compile_grate.sh
wasm-ld: error: unable to find library -lcrypto
clang: error: linker command failed with exit code 1 (use -v to see invocation)

However, libcrypto.a does seem to exist in the sysroot:

lind@7abae280c536:~/lind-wasm-example-grates/examples/witness-grate$ find /home/lind/lind-wasm/build/sysroot/ -name libcrypto.a
/home/lind/lind-wasm/build/sysroot/usr/lib/wasm32-wasi/libcrypto.a

I used rsync -a to replace lind-wasm/build/sysroot with lind-wasm/build/sysroot_overlay.

At the moment, I am not sure whether this is caused by my sysroot/sysroot_overlay replacement step, or libcrypto is present but not actually usable/compatible for this wasm target.

Any pointers would be appreciated. Thanks!

[vidyalakshmir]

@Yaxuan-w What is compile_grate.sh doing. Is the witness grate invoking any openSSL functions?

We have been using openssl (libssl and lib crypto) library statically linked to apps. I have added the dynamic builds of the libraries in a new PR.

Also I saw that your rsync command uses lind-wasm/build/sysroot_overlay instead of lind-wasm-apps/build/sysroot_overlay