building gmp with MSYS and MinGW for VC++

[Sisyphus]

Kevin Ryde wrote:
> Sisyphus <kalinabears at iinet.net.au> writes:
> 
>>I also found that when I run my 4.1.2-built mpfr applications using
>>the 4.1.3 dll, I get a fatal pop-up with the following message:
>>"The procedure entry point __gmp_tmp_reentrant_alloc could not be
>>located in the dynamic link library libgmp-3.dll"
> 
> 
> mpfr is dependent on gmp internals.  Sounds like your previous build
> was with --enable-alloca=malloc.

I know I didn't specify that option when I built 4.1.2 - and wouldn't 
that affect *all* of GMP ? I find it's affecting only 'mpfr' apps .... 
actually that's not quite true - I did receive one strange runtime error 
with one 'mpz' app that I've not yet looked at properly. Anyway, I'll 
give that option a try with 4.1.3 tomorrow and let you know what I find.

I've been looking at the manual in regard to the various 'alloca' build 
options, and I find it a little confusing. The one you've given above is 
not there, afaict. Is 'enable-alloca=malloc' synonymous with 
'enable-alloca=malloc-notreentrant' ?

I don't exactly know what 'reentrancy' is. I guess it has something to 
do with threads, in which case I probably don't need it.

There's no simple way of querying the build options that were used, is 
there ? (I think I recall past discussions that stated there weren't.)

Cheers,
Rob


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