tan not exported by msvcrt, ntdll

[Francois Gouget]

I tried compiling Winelib applications without '-lm' (btw, the
comment in configure.in is incorrect, it concerns Linux too, not just
BeOS). But I had undefined symbol errors for applications that use tan
and a couple other math functions. The reason is that both ntdll and
msvcrt declare them with '-noimport':
 * msvcrt.spec:
   @ forward -noimport tan ntdll.tan
 * ntdll.spec:
   @ cdecl -noimport tan(double) tan

So a Winelib application that imports msvcrt and ntdll does not get
tan and thus must link with libm in the Unix sense. sin, cos and most
others were ok though!

Changelog:

* dlls/msvcrt/msvcrt.spec

Remove some '-noimport' for math functions

--
Francois Gouget         [e-mail]        http://fgouget.free.fr/
                            1 + e ^ ( i * pi ) = 0