[ECOS] Lack of libsupc++.a on BSD

[Jonathan Larmour]

Andrew Lunn wrote:
> On Sun, Nov 16, 2008 at 03:40:12PM +0100, Jesper Skov wrote:
>>I happened to find something here
>>(http://www.ecoscentric.com/ecospro/doc.cgi/html/ref/memalloc-standard-api.html)
>>that suggests
>>that using the option CYGFUN_MEMALLOC_MALLOC_CXX_OPERATORS should
>>allow me to work around this.
>>
>>But I cannot find that option anywhere. Is it in the ecospro repo only?
> 
> This is only in ecosCentric's closed source port :-( 

<ahem> That's not closed source. It's under the usual eCos licence, 
distributed as per 3(a) of the GPL.

> A shame really,
> libsupc++.a regularly causes problems for synth, so being able to get
> rid of this dependancy would be good.

Copy the relevant subset of source files from GCC's libsupc++ into the 
synth HAL (probably in a subdir), build it into its own library (compile 
-library=libsupc++-ecos.a .... ?) and use that instead of libsupc++ in the 
linker script. The synth HAL can use CDL requires on 
CYGBLD_HAL_LINKER_GROUPED_LIBS_DEFAULT to do this (a newly added option, 
part of a contribution by eCosCentric :-)).

It's probably safer in its own library due to its slightly different GPL 
exception wording at the top.

Jifl
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