OpenSSL 1.1.1q failing to build

[stack]

This is a fresh install of macOS 12.4 on a M1 Pro MacBook Pro. Attempting to install Ruby 3.1.2.

• Xcode 13.4.1
• Homebrew installed as of today (2022-07-11).
• ruby-build 20220710

The OpenSSL 1.1.1q fails to build in the tests:

Downloading openssl-1.1.1q.tar.gz...
-> https://dqw8nmjcqpjn7.cloudfront.net/d7939ce614029cdff0b6c20f0e2e5703158a489a72b2507b8bd51bf8c8fd10ca
Installing openssl-1.1.1q...

BUILD FAILED (macOS 12.4 using ruby-build 20220710)

Inspect or clean up the working tree at /var/folders/4y/m2qk7qcx099b6g_zt98mp3jh0000gn/T/ruby-build.20220711120126.51360.08iZ3t
Results logged to /var/folders/4y/m2qk7qcx099b6g_zt98mp3jh0000gn/T/ruby-build.20220711120126.51360.log

Last 10 log lines:
clang  -Iinclude -arch arm64 -O3 -Wall -D_REENTRANT -DZLIB -DZLIB_SHARED -DNDEBUG -I/Users/stephen/.rbenv/versions/3.1.2/include  -MMD -MF test/v3ext.d.tmp -MT test/v3ext.o -c -o test/v3ext.o test/v3ext.c
clang  -Iinclude -arch arm64 -O3 -Wall -D_REENTRANT -DZLIB -DZLIB_SHARED -DNDEBUG -I/Users/stephen/.rbenv/versions/3.1.2/include  -MMD -MF test/v3nametest.d.tmp -MT test/v3nametest.o -c -o test/v3nametest.o test/v3nametest.c
test/v3ext.c:201:24: error: implicitly declaring library function 'memcmp' with type 'int (const void *, const void *, unsigned long)' [-Werror,-Wimplicit-function-declaration]
        if (!TEST_true(memcmp(ip1->data, ip2->data, ip1->length) <= 0))
                       ^
test/v3ext.c:201:24: note: include the header <string.h> or explicitly provide a declaration for 'memcmp'
1 error generated.
make[1]: *** [test/v3ext.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [all] Error 2

[eregon]

It's a bug in openssl upstream: openssl/openssl#18720

[eregon]

Could you try if OPENSSL_CFLAGS=-Wno-error=implicit-function-declaration helps?

The default of -Werror,-Wimplicit-function-declaration is macOS-specific (so this does not happen on Linux).

An easy fix for 3.1.2 would be to install openssl 3 instead of openssl 1.1, thoughts on that @mislav? => #2000

[stack]

The OPENSSL_CFLAGS flags do fix the issue for me. 3.1.2 installed without issue.

[eregon]

Alright, then I think we can close this.
Hopefully openssl makes a new 1.1 release soon with the fix so there is no need to work around it.

[moemylawn]

Could you try if OPENSSL_CFLAGS=-Wno-error=implicit-function-declaration helps?

The default of -Werror,-Wimplicit-function-declaration is macOS-specific (so this does not happen on Linux).

An easy fix for 3.1.2 would be to install openssl 3 instead of openssl 1.1, thoughts on that @mislav? => #2000

i'm sorry. What does this mean. How do I do that?

[jtethras]

Could you try if OPENSSL_CFLAGS=-Wno-error=implicit-function-declaration helps?
The default of -Werror,-Wimplicit-function-declaration is macOS-specific (so this does not happen on Linux).
An easy fix for 3.1.2 would be to install openssl 3 instead of openssl 1.1, thoughts on that @mislav? => #2000

i'm sorry. What does this mean. How do I do that?

Run your ruby install with the argument
OPENSSL_CFLAGS=-Wno-error=implicit-function-declaration rbenv install [version]

[moemylawn]

OPENSSL_CFLAGS=-Wno-error=implicit-function-declaration

lifesaver. thanks

[stack]

20220713 also fixed this issue for Ruby 3.1.x by moving to OpenSSL 3.