[foreign] Running tests on Windows

[Jorn Vernee]

If I use the following flags:

$ bash configure --disable-warnings-as-errors 
--with-jtreg='/cygdrive/j/Libraries And Tools/jtreg-4.2-b13' 
--with-libclang-include='J:\\LLVM\\include' 
--with-libclang-include-aux='J:\\LLVM\\lib' 
--with-libclang-lib='J:\\LLVM\\lib'

(Notice that I'm having to use different path styles)

It's detecting the header files, but it's failing on being passed the 
wrong flags. from config.log (see at the bottom):

configure:60248: checking for clang_getClangVersion in -lclang
configure:60273: 
/cygdrive/j/progra~2/micros~2/2017/buildt~1/vc/tools/msvc/1414~1.264/bin/hostx86/x64/cl 
-o conftest.exe    -IJ:\\LLVM\\include -LJ:\\LLVM\\lib conftest.cpp 
-lclang   >&5
conftest.cpp
Microsoft (R) Incremental Linker Version 14.14.26430.0
Copyright (C) Microsoft Corporation.  All rights reserved.

/out:conftest.exe
/out:conftest.exe
conftest.obj
conftest.obj : error LNK2019: unresolved external symbol 
clang_getClangVersion referenced in function main
conftest.exe : fatal error LNK1120: 1 unresolved externals
Microsoft (R) C/C++ Optimizing Compiler Version 19.14.26430 for x64
Copyright (C) Microsoft Corporation.  All rights reserved.

cl : Command line warning D9035 : option 'o' has been deprecated and 
will be removed in a future release
cl : Command line warning D9002 : ignoring unknown option 
'-LJ:\\LLVM\\lib'
cl : Command line warning D9002 : ignoring unknown option '-lclang'

That seems to be a simple problem of casing-off windows and passing the 
right flags, but I call it a night here :)

Jorn