I have made a change to the Windows MPIR build which avoids the increasing
problem caused by the fact that the include file mpir,h is currently
different for win32 and x64 builds.
This has made it only too easy to use the wrong version with the result
that the build fails or, worse, is wrongly configured and fails when an
attempt is made to use the resulting libraries.
>From now on (i.e. for SVN now and for all future releases) MPIR based
applications for x64 systems must be built with the compiler symbol _WIN64
defined.
Microsoft documentation claims that _WIN64 is predefined for x64 builds so
this ought not to cause any problems.
Sadly, however, I have found that this is NOT automatic and has to be done
manually on the compiler's command line or in source code files before
mpir.h is included.
with regards,
Brian
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