https://git.ruby-lang.org/ruby.git/commit/?id=0acc05caf7

From 0acc05caf7518cd0d63ab02bfa036455add02346 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Tue, 2 Feb 2021 08:33:08 +0900
Subject: Add -fdeclspec to CFLAGS instead of CC

---
 configure.ac | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/configure.ac b/configure.ac
index 1206e90..fc65234 100644
--- a/configure.ac
+++ b/configure.ac
@@ -550,11 +550,16 @@ AS_IF([test x"${RPATHFLAG}" = x], [ https://github.com/ruby/ruby/blob/trunk/configure.ac#L550
     rpathflag=`echo "$RPATHFLAG" | sed 's/%.*//'`
 ])
 
-RUBY_TRY_CFLAGS(-fdeclspec, [
-  RUBY_APPEND_OPTIONS(CC, -fdeclspec)
-  RUBY_APPEND_OPTIONS(MJIT_CC, -fdeclspec)
+RUBY_TRY_CFLAGS(-fdeclspec, [fdeclspec=yes], [fdeclspec=no])
+AS_IF([test "$fdeclspec" = yes], [
+    RUBY_APPEND_OPTIONS(CFLAGS, -fdeclspec)
+    RUBY_APPEND_OPTIONS(cflags, -fdeclspec)
+    RUBY_APPEND_OPTIONS(orig_cflags, -fdeclspec)
+])
+RUBY_TRY_CXXFLAGS(-fdeclspec, [fdeclspec=yes], [fdeclspec=no])
+AS_IF([test "$fdeclspec" = yes], [
+    RUBY_APPEND_OPTIONS(CXXFLAGS, -fdeclspec)
 ])
-RUBY_TRY_CXXFLAGS(-fdeclspec, [RUBY_APPEND_OPTIONS(CXX, -fdeclspec)])
 
 AS_CASE([$RUBY_PATCHLEVEL], [-*],
 	[RUBY_DEVEL=yes], [RUBY_DEVEL=no])
-- 
cgit v1.1


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