Re: Patch for tools/gcc.jam in BBv2

From: David Abrahams (dave_at_[hidden])
Date: 2005-04-29 07:34:02

Vladimir Prus <ghost_at_[hidden]> writes:

> On Thursday 28 April 2005 19:46, David Abrahams wrote:
>
>> > This file was just copied to the gcc.jam file in v2.
>> >
>> > I don't know what the motivation was for that change, nor why
>> > it breaks mingw now.
>>
>> The motivation is that cmd.exe has a much more restricted command-line
>> length than the method that is used when JAMSHELL=%, and we were
>> violating that length when building static libraries. Since GCC
>> doesn't support response (.rsp) files, we needed a workaround.
>
> Why JAMSHELL=% is not global default, then?

Probably because A) I wanted to disturb the normal operation of jam as
little as possible and B) No shell variable expansion, pipes, or &&/||
work when JAMSHELL=%.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com