[tlbuild] Last icu update breaks build on NetBSD

[Marc Baudoin]

Karl Berry <karl at freefriends.org> écrit :
>     -# if U_PLATFORM_USES_ONLY_WIN32_API || U_PLATFORM == U_PF_CYGWIN
>     +# if U_PLATFORM_USES_ONLY_WIN32_API || U_PLATFORM == U_PF_CYGWIN || defined(__NetBSD__)
> 
> Installed, thanks. I hope it's also been sent upstream? -k

It's part of the pkgsrc patches so it should find its way
upstream some day.