Re: [PATCH] emacs: Compute build dependencies to fix byte compile issues

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+From: David Bremner <david@tethera.net>\r
+To: Austin Clements <amdragon@MIT.EDU>, notmuch@notmuchmail.org\r
+Subject: Re: [PATCH] emacs: Compute build dependencies to fix byte compile\r
+       issues\r
+In-Reply-To: <1368821611-24110-1-git-send-email-amdragon@mit.edu>\r
+References: <1368821611-24110-1-git-send-email-amdragon@mit.edu>\r
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+Date: Thu, 23 May 2013 08:46:07 -0300\r
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+Austin Clements <amdragon@MIT.EDU> writes:\r
+\r
+> Previously, we simply byte compiled each Elisp source file\r
+> independently.  This is actually the wrong thing to do and can lead to\r
+> issues with macros and performance issues with substitutions because\r
+> 1) when the byte compiler encounters a (require 'x) form, it will load\r
+> x.elc in preference to x.el, even if x.el is newer, and as a result\r
+> may load old macro and substitution definitions and 2) if we update a\r
+> macro or substitution definition in one file, we currently won't\r
+> re-compile other files that depend on the file containing the\r
+> definition.\r
+\r
+Pushed,\r
+\r
+d\r