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+#+TITLE: eval-and-compile
+
+I'm reading up a little on byte-compilation in [[emacs][GNU Emacs]] and I read
+about just exactly a feature that I needed.
+
+A while ago, I was working on my
+init[fn:init:[[http://ryuslash.org/dotfiles/emacs/init.html]]] file,
+adding some ~auto-complete~ code since I wanted to try it again.  I
+noticed that, because ~auto-complete~ is installed through ~package~, it
+couldn't load the appropriate files at compile time.
+
+I know that =package-initialize= should be called before calling or
+using any ~package~-installed functions and I have it in my
+init[fn:init] file, but this doesn't help at compile time.  So, ugly
+as I thought it was, I added
+
+#+begin_src emacs-lisp
+  (eval-when-compile (package-initialize))
+#+end_src
+
+just above the call to the ~auto-complete~ functions.  I hated having to
+do that, I know it's just one line, but its not at all DRY[fn::Don't
+Repeat Yourself].
+
+Just now, though, I read about =eval-and-compile=, and according to the
+documentation in the elisp reference manual, it should do exactly what
+I want, eval both when running and when compiling.
+
+#+begin_src emacs-lisp
+  (eval-and-compile (package-initialize))
+#+end_src
+
+I'm currently trying it out, I just tested it once and it seems to
+work like a charm.
+
+/Of course/, this might never have been an issue if I didn't use ~emacs
+-Q~ to compile my init[fn:init] file, just to speed up loading during
+compilation a little bit.