Install ruby 3.1.2 on M1 with rbenv with homebrew openssl and a mitigation of libtool deprecation

README.md

References:

• rbenv/ruby-build#1505 (comment)
• https://bugs.ruby-lang.org/issues/17486

gistfile1.txt

CONFIGURE_OPTS="--with-openssl-dir=$(brew --prefix openssl@1.1)" RUBY_CONFIGURE_OPTS="--with-openssl-dir=$(brew --prefix openssl@1.1)" rbenv install --patch 3.1.2 --verbose < patch1.patch

patch1.patch

diff --git a/configure.ac b/configure.ac
index 2dcebdde9f..b11809c6d5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -191,6 +191,13 @@ AS_CASE(["${build_os}"],
 ],
 [aix*], [
     AC_PATH_TOOL([NM], [nm], [/usr/ccs/bin/nm], [/usr/ccs/bin:$PATH])
+],
+[darwin*], [
+    AS_IF([libtool 2>&1 | grep no_warning_for_no_symbols > /dev/null], [
+        ac_cv_prog_ac_ct_RANLIB=:
+        ac_cv_prog_ac_ct_AR='libtool -static'
+        rb_cv_arflags='-no_warning_for_no_symbols -o'
+    ])
 ])
 AS_CASE(["${target_os}"],
 [cygwin*|mingw*], [