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Re: AC_CHECK_PROGS and java compiler options

From: Ralf Wildenhues
Subject: Re: AC_CHECK_PROGS and java compiler options
Date: Sat, 22 Aug 2009 09:59:47 +0200
User-agent: Mutt/1.5.20 (2009-08-09)

Hello John,

* John Calcote wrote on Fri, Aug 21, 2009 at 02:44:03AM CEST:
> I'm wondering about best practices for checking for programs like
> the javac compiler. For instance, I currently have a line in my
> project's file that looks like this:
> AC_CHECK_PROGS([JAVAC], ["gcj -C -ftarget=1.4 -fsource=1.4" "guavac
> -target 1.4 -source 1.4" "jikes -target 1.4 -source 1.4" "javac
> -target 1.4 -source 1.4"])

Why are you doing this?  AC_CHECK_PROGS will cut off the arguments when
searching for the program anyway, it don't try to run the program.

The semantics of AC_CHECK_PROGS are purely done so that one can pass in
variables to AC_CHECK_PROGS that are also used likewise elsewhere; but
for the tests done by this macro, they are not relevant.

Hope that helps.


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