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Re: How to exit if program is not found

From: Roger Pau Monné
Subject: Re: How to exit if program is not found
Date: Thu, 14 Jun 2012 17:07:25 +0100

On Thu, Jun 14, 2012 at 5:01 PM, Timothy Madden <address@hidden> wrote:
> Hello
> I see in the info pages that autoconf macros check for various programs and
> set a variable if found, but how do I get the behaviour I see in most
> configure programs to exit with an error if a program is not found ?

I usually use the following macro:

[AC_PATH_PROG([$1], [$2], [no])
if test x"${$1}" == x"no"
    AC_MSG_ERROR([Unable to find $2, please install $2])

So on my I make the following calls:


Where "PERL" is the name of the variable where to store the path, and
"perl" is the name of the program to search for.

Hope this helps, Roger.

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