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'ccache gcc' as compiler with libtool

From: Vincent Caron
Subject: 'ccache gcc' as compiler with libtool
Date: Wed, 26 Nov 2003 04:19:02 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20031014 Thunderbird/0.3


   I'm running automake 1.7.9 as packaged in Sid, and having trouble
using 'cache gcc' as compiler. I get this error :

/bin/sh ../libtool --mode=link ccache g++  -Wall [...]
libtool: link: unable to infer tagged configuration
libtool: link: specify a tag with `--tag'

   As far as I could see, libtool extract the compiler name from the
first non-option argument, and stop parsing from here. So it identifies
the compiler (his internal var is base_compile) as 'ccache', and fails.

   Since Libtool is not 'wrong' and I don't see good ways to change its
command line parsing without breaking it, I chose to quote the compiler
name in automake invocations of libtool. I hope this 3-liner patch is

<           my $obj_ltcompile = '$(LIBTOOL) --mode=compile ' . $obj_compile;
>           my $obj_ltcompile = "\$(LIBTOOL) --mode=compile \"$obj_compile\"";
<     &define_variable ("LT$var", "\$(LIBTOOL) --mode=compile $value")
>     &define_variable ("LT$var", "\$(LIBTOOL) --mode=compile \"$value\"")
<                      . $lang->link));
>                      . "\"$lang->link\""));

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