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Re: region sensitive Makefile compile-command

From: Juri Linkov
Subject: Re: region sensitive Makefile compile-command
Date: Tue, 07 Dec 2004 01:40:17 +0200
User-agent: Gnus/5.110002 (No Gnus v0.2) Emacs/21.3.50 (gnu/linux)

Kevin Rodgers <address@hidden> writes:
> Wow, I didn't know compile-command could be an expression that is
> evaluated dynamically!  That feature is not documented in the
> variable's doc string, the Emacs manual, or the NEWS file -- which
> in itself is a bug.

It is documented in the docstring only implicitly by showing an
example where `concat' is evaluated dynamically.

I'm not sure about the Emacs manual, but the docstring could be fixed
like this:

Index: lisp/progmodes/compile.el
RCS file: /cvsroot/emacs/emacs/lisp/progmodes/compile.el,v
retrieving revision 1.342
diff -u -r1.342 compile.el
--- lisp/progmodes/compile.el   25 Nov 2004 03:02:18 -0000      1.342
+++ lisp/progmodes/compile.el   6 Dec 2004 23:33:33 -0000
@@ -415,6 +415,12 @@
 (defcustom compile-command "make -k "
   "*Last shell command used to do a compilation; default for next compilation.
+If it is an expression, it is evaluated to the command string before
+`compile' prompts for the command.  When the value of the command
+specified at the command prompt is not the same as evaluated from
+the expression, then this variable gets overwritten with the value
+of the last specified command string.
 Sometimes it is useful for files to supply local values for this variable.
 You might also use mode hooks to specify it in certain modes, like this:

Juri Linkov

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