[C++][CI] OpenSSL link error in Gandiva on macOS

[pitrou]

Describe the bug, including details regarding any error messages, version, and platform.

As seen on CI:

Undefined symbols for architecture x86_64:
  "_EVP_MD_get_size", referenced from:
      gandiva::gdv_hash_using_openssl(long long, void const*, unsigned long, evp_md_st const*, unsigned int, int*) in libgandiva.a(hash_utils.cc.o)
ld: symbol(s) not found for architecture x86_64

https://github.com/apache/arrow/actions/runs/5390688418/jobs/9786417735#step:9:1716

Also, it would be nice if the CMake configure logs shows the architecture being targeted (perhaps CMAKE_SYSTEM_PROCESSOR?).

Component(s)

C++, Continuous Integration

[pitrou]

cc @kou

[kou]

Ah, sorry. I didn't take a look at this failure.

It's caused by mixing OpenSSL 1.1 and 3.0.
In this case, OpenSSL 3.0's include headers (they have #define EVP_MD_size EVP_MD_get_size) are used and OpenSSL 1.1's libraries (they provides EVP_MD_size not EVP_MD_get_size) are used.