Windows: Add support for unicode command lines

Summary:
The MSVCRT deliberately sends main() code-page specific characters.
This isn't too useful to LLVM as we end up converting the arguments to
UTF-16 and subsequently attempt to use the result as, for example, a
file name.  Instead, we need to have the ability to access the Unicode
command line and transform it to UTF-8.

This has the distinct advantage over using the MSVC-specific wmain()
function as our entry point because:
 - It doesn't work on cygwin.
 - It only work on MinGW with caveats and only then on certain versions.
 - We get to keep our entry point as main(). :)

N.B.  This patch includes fixes to other parts of lib/Support/Windows
s.t. we would be able to take advantage of getting the Unicode paths.
E.G.  clang spawning clang -cc1 would want to give it Unicode arguments.

Reviewers: aaron.ballman, Bigcheese, rnk, ruiu

Reviewed By: rnk

CC: llvm-commits, ygao

Differential Revision: http://llvm-reviews.chandlerc.com/D1834

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192069 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 1 deletions

diff --git a/utils/not/CMakeLists.txt b/utils/not/CMakeLists.txt
index f4c02290d7..5ff14d6692 100644
--- a/utils/not/CMakeLists.txt
+++ b/utils/not/CMakeLists.txt
@@ -4,7 +4,7 @@ add_llvm_utility(not
 
 target_link_libraries(not LLVMSupport)
 if( MINGW )
-  target_link_libraries(not imagehlp psapi)
+  target_link_libraries(not imagehlp psapi shell32)
 endif( MINGW )
 if( LLVM_ENABLE_THREADS AND HAVE_LIBPTHREAD )
   target_link_libraries(not pthread)