[PATCH 2 of 2] companion_tools/autoconf: add autoconf tool

[Richard Strand]

Yann E. MORIN wrote:
>> +    mkdir -p "${CT_BUILD_DIR}/build-autoconf"
>> +    CT_Pushd "${CT_BUILD_DIR}/build-autoconf"
>> +    CT_DoExecLog ALL ${CONFIG_SHELL} \
>>     
>
> Directly call ./configure, do not use CT_CONFIG_SHELL. It's the
> responsibility of ./configure to use CONFIG_SHELL (note there's
> no leading CT_) internally. CONFIG_SHELL is correctly set and
> exported.
>   

I know this is how it is supposed to work, but CONFIG_SHELL actually 
seems to cause problems on my system.
I am using Ubuntu 9.04 where /bin/sh points to dash and SHELL=/bin/bash. 
When CONFIG_SHELL=/bin/bash then autoconf configure fails on my system 
with the error "configure: error: no acceptable m4 could be found in 
$PATH.". When CONFIG_SHELL is not set, or configure is explicitly called 
with bash then this problem goes away!

I don't experience this issue when building any of the other packages in 
crosstool-ng. :(

I have attached a text file with output from my shell with an example of 
what happens.

Regards,

Richard Strand

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