https://git.ruby-lang.org/ruby.git/commit/?id=90cad6e147

From 90cad6e14745d812f042df61a6455db022be7389 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=9C=E9=83=A8=E6=98=8C=E5=B9=B3?=
 <shyouhei@r...>
Date: Mon, 14 Jun 2021 09:34:25 +0900
Subject: prefer cc/gcc over clang on solaris

requested by tankf33der at https://bugs.ruby-lang.org/issues/17949#change-92430
---
 configure.ac | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index da65b16..9306542 100644
--- a/configure.ac
+++ b/configure.ac
@@ -135,8 +135,15 @@ AS_IF([test ! -z "$ac_cv_prog_CC" -a ! -z "$CC" -a "$CC" != "$ac_cv_prog_CC"], [ https://github.com/ruby/ruby/blob/trunk/configure.ac#L135
   AC_MSG_ERROR(cached CC is different -- throw away $cache_file
 (it is also a good idea to do 'make clean' before compiling))
 ])
-AS_CASE(["${build_os}"], [linux*|cygwin*|msys*], [
+AS_CASE(["${build_os}"],
+[linux*|cygwin*|msys*], [
+    # Naruse prefers GCC on Linux
     AC_CHECK_TOOLS([CC], [gcc clang cc])
+],
+[solaris*], [
+    # Clang on Solaris is largely untested.
+    # https://bugs.ruby-lang.org/issues/17949
+    AC_CHECK_TOOLS([CC], [cc gcc])
 ], [
     # OpenBSD wants to prefer cc over gcc.
     # See https://github.com/ruby/ruby/pull/2443
-- 
cgit v1.1


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