Importing NimMain with msvc compiler fails.

[balenamiaa]

The current specified way of importing NimMain from C is: proc NimMain() {.cdecl, importc.}, but it gives the error:

error C2375: 'NimMain': redefinition; different linkage
	note: see declaration of 'NimMain'

It seems the import generates this C code: N_CDECL(void, NimMain)(void); but NimMain is defined at the end of the file like so: N_LIB_EXPORT N_CDECL(void, NimMain)(void) thus the different linkage. Now It can be solved like this, albeit ugly:

proc NimMain() {.cdecl, importc, noDecl.}
{.emit:"N_LIB_EXPORT N_CDECL(void, NimMain)(void);".}

[byt3bl33d3r]

I'm assuming you're compiling this from Windows? Good to know. I can add it to the README but this repo is intended to x-compile everything to windows from *nix or MacOS.

[balenamiaa]

I am compiling from windows. This doesn't happen if I use the mingw toolchain though. If you don't think it brings value there's no need to add it :) . Most aren't going to use the vcc backend anyway.