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+From: David Bremner <david@tethera.net>\r
+To: Jinwoo Lee <jinwoo68@gmail.com>, notmuch@notmuchmail.org\r
+Subject: Re: [patch v3 1/4] build: integrate building ruby bindings into\r
+ notmuch build process\r
+In-Reply-To: <yq65pp4zz617.fsf@jinwoo-macbookair.roam.corp.google.com>\r
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+Date: Sat, 13 Jun 2015 23:11:00 +0200\r
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+Jinwoo Lee <jinwoo68@gmail.com> writes:\r
+\r
+>> I with configure has an option to skip the ruby-bindings build.\r
+>\r
+> `configure' seems to try to detect whether the ruby development tools\r
+> are installed. It thinks I have them but I don't actually, and that's\r
+> why my build fails. When I manually set 'HAVE_RUBY_DEV = 0' in\r
+> Makefile.config, everything's fine.\r
+\r
+Thanks for narrowing this down. Can you tell us the output of\r
+\r
+% ruby -e "require 'mkmf'" ; echo $?\r
+\r