----- Original Message ----- From: "Sisyphus"

Apart from 'gcc -v' or 'gcc --version' there's apparently nothing - and I
have at least one mingw64 64-bit compiler that doesn't report the date even
then.

But on the mingw64 mailing list (where I asked about this, in the thread "Compiler incompatibilities") Ozkan presented this possible alternative:

###quote###
In that case, if mpir is using autotools a configury check
can be done.  I have the following in one of my projects
which can be adapted to their needs I guess:

dnl === Check for underscore on external symbols =====================
AC_MSG_CHECKING(whether external symbols need an underscore prefix)
AC_TRY_LINK(
[asm(".long _bar");
int bar;],
[],
AC_DEFINE(HAVE_SYM_PREFIX_UNDERSCORE, 1, [Define this if C symbols
are prefixed with an underscore]) AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
)
###end quote###

Thanks again, Ozkan.

Cheers,
Rob

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