> I believe that -TP should fix the problem, but I cannot test it.
> Set CXX='cl -TP' and check if the tests work better.
I haven't tested this under autoconf, but -TP (or -Tpfile.cc) works
under make in cygwin. That was some time ago (maybe a year or so) with
MSVC++ 5.x. My solution was to not use the option but to hack the
autoconf file extension macros to switch to `cpp' if it detected `cl'.
But that was just the tip of the ice-berg... So while I am at it, a few
more things worth a mention.
MSVC++ always prints the file name out when compiling a file. I seem to
recall this confused the autoconf macros that tried to detect whether
the compile was spitting out error messages or not. I think I hacked
the macros to not care about lines with just the file name (MSVC++
doesn't print a colon) when looking for errors. I haven't looked
closely at the recently proposed changes, but they might do the right
thing. Should I post my hacked up autoconf macros?
You'll probably want to compile with `cl -nologo' (at least with MSVC++
5.x and below, haven't tried with 6.x yet). Otherwise you will get a
banner that might be very confusing to the error message guessing logic
:-)
Depending on how extensively you want to support `cl', there are many
more issues to deal with -- sometimes convoluted ones. Like it doesn't
understand `-l' or `-L' options, so anything that looks for symbols by
linking will probably fail.
Similar observations go for the `df' FORTRAN compiler. It doesn't even
want to see any `/' characters in file names, they have to be '\' :-)
It doesn't understand most common unix compiler options either, so
FORTRAN-compiling packages will probably choke if they try anything
non-trivial.
And since this is probably under cygwin, it might be worth mentioning
that `cl' and `df' (or `link' or `lib' or any other native tool) do not
understand cygwin's filesystem mounts or symlinks. All paths for -I and
-L options must be translated to real windows paths before invoking the
tools -- including relative ones as they might be symlinks!
Cheers,
//lat
--
A copy of the universe is not what is required of art; one of
the damned things is ample. --Rebecca West
