From a85200277921dbefc1dfc9edd9ed26e9cea009f8 Mon Sep 17 00:00:00 2001
From: hsbt <hsbt@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 20 Oct 2018 07:38:19 +0000
Subject: Mergr etc from github repository.

  * ext/etc/extconf.rb: It supports to generate dependency header
    on standalone gem with github repository.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65211 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/etc/extconf.rb | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'ext/etc')

diff --git a/ext/etc/extconf.rb b/ext/etc/extconf.rb
index 20a7dd00d6..f51a1af927 100644
--- a/ext/etc/extconf.rb
+++ b/ext/etc/extconf.rb
@@ -41,6 +41,12 @@ have_struct_member('struct passwd', 'pw_expire', 'pwd.h')
 have_struct_member('struct passwd', 'pw_passwd', 'pwd.h')
 have_struct_member('struct group', 'gr_passwd', 'grp.h')
 
+# for https://github.com/ruby/etc
+srcdir = File.expand_path("..", __FILE__)
+if !File.exists?("#{srcdir}/constdefs.h")
+  %x[#{RbConfig.ruby} #{srcdir}/mkconstants.rb -o #{srcdir}/constdefs.h]
+end
+
 $distcleanfiles << "constdefs.h"
 
 create_makefile("etc")
-- 
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