M1 Mac에서 rbenv를 통해 Ruby 2.x, 3.x 버전 설치

brew install anyenv

anyenv install rbenv

rbenv install 2.6.6
Downloading openssl-1.1.1q.tar.gz...
-> https://dqw8nmjcqpjn7.cloudfront.net/d7939ce614029cdff0b6c20f0e2e5703158a489a72b2507b8bd51bf8c8fd10ca
Installing openssl-1.1.1q...

BUILD FAILED (macOS 12.3 using ruby-build 20220630-3-g2155888)

Inspect or clean up the working tree at /var/folders/7w/__wt6xg10rv3jdq_z2rjt8300000gn/T/ruby-build.20220706155948.38261.B1lwKj
Results logged to /var/folders/7w/__wt6xg10rv3jdq_z2rjt8300000gn/T/ruby-build.20220706155948.38261.log

Last 10 log lines:
clang  -Iinclude -arch arm64 -O3 -Wall -D_REENTRANT -DZLIB -DZLIB_SHARED -DNDEBUG -I/Users/yas/.anyenv/envs/rbenv/versions/2.6.6/include  -MMD -MF test/wpackettest.d.tmp -MT test/wpackettest.o -c -o test/wpackettest.o test/wpackettest.c
clang  -Iinclude -arch arm64 -O3 -Wall -D_REENTRANT -DZLIB -DZLIB_SHARED -DNDEBUG -I/Users/yas/.anyenv/envs/rbenv/versions/2.6.6/include  -MMD -MF test/x509_check_cert_pkey_test.d.tmp -MT test/x509_check_cert_pkey_test.o -c -o test/x509_check_cert_pkey_test.o test/x509_check_cert_pkey_test.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

Fundamentally speaking, it is caused by OpenSSL.
[email protected] came in Sep 2021, but it was not compatible with ruby-build. So we have to switch the [email protected].

brew install openssl@1.1

yas@MBP2 ~> which openssl
/usr/bin/openssl
yas@MBP2 ~> fish_add_path /opt/homebrew/opt/openssl@1.1/bin // set PATH. this is for fish shell.
// if you use other than fish, add '/opt/homebrew/opt/[email protected]/bin' to your PATH.
yas@MBP2 ~> exec $SHELL -l //refresh shell
yas@MBP2 ~> which openssl
/opt/homebrew/opt/openssl@1.1/bin/openssl

CFLAGS="-Wno-error=implicit-function-declaration" rbenv install 2.6.6