C:\Projects\emscripten\tests>clang -v -IC:\Projects\ -c hello_world.c
clang version 3.0 (tags/RELEASE_30/final 155298)
Target: i686-pc-win32
Thread model: posix
 "c:/projects/llvm/build30/bin/Release/clang.exe" -cc1 -triple i686-pc-win32 -em
it-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name hello_wo
rld.c -mrelocation-model static -mdisable-fp-elim -masm-verbose -mconstructor-al
iases -target-cpu pentium4 -momit-leaf-frame-pointer -v -coverage-file hello_wor
ld.o -resource-dir "c:/projects/llvm/build30/bin/Release\\..\\lib\\clang\\3.0" -
I "C:\\Projects\\" -fmodule-cache-path "C:\\Users\\clb\\AppData\\Local\\Temp\\cl
ang-module-cache" -internal-isystem c:/projects/llvm/build30/bin/Release/../lib/
clang/3.0/include -internal-isystem "C:\\Program Files (x86)\\Microsoft Visual S
tudio 10.0\\VC\\include" -internal-isystem "C:\\Program Files\\Microsoft SDKs\\W
indows\\v7.1\\\\include" -ferror-limit 19 -fmessage-length 80 -fms-extensions -f
ms-compatibility -fmsc-version=1300 -fdelayed-template-parsing -fgnu-runtime -fo
bjc-runtime-has-arc -fobjc-runtime-has-weak -fobjc-fragile-abi -fdiagnostics-sho
w-option -fcolor-diagnostics -o hello_world.o -x c hello_world.c
clang -cc1 version 3.0 based upon llvm 3.0 hosted on i686-pc-win32
ignoring nonexistent directory "C:\Projects" -fmodule-cache-path C:\Users\clb\Ap
pData\Local\Temp\clang-module-cache -internal-isystem c:/projects/llvm/build30/b
in/Release/../lib/clang/3.0/include -internal-isystem C:\Program"
#include "..." search starts here:
End of search list.
error: error reading 'Files'
ignoring nonexistent directory "C:\Projects" -fmodule-cache-path C:\Users\clb\Ap
pData\Local\Temp\clang-module-cache -internal-isystem c:/projects/llvm/build30/b
in/Release/../lib/clang/3.0/include -internal-isystem C:\Program"
#include "..." search starts here:
End of search list.
error: unable to open output file '': 'Error opening output file '(x86)/Microsof
t.o''
ignoring nonexistent directory "C:\Projects" -fmodule-cache-path C:\Users\clb\Ap
pData\Local\Temp\clang-module-cache -internal-isystem c:/projects/llvm/build30/b
in/Release/../lib/clang/3.0/include -internal-isystem C:\Program"
#include "..." search starts here:
End of search list.
error: error reading 'Visual'
ignoring nonexistent directory "C:\Projects" -fmodule-cache-path C:\Users\clb\Ap
pData\Local\Temp\clang-module-cache -internal-isystem c:/projects/llvm/build30/b
in/Release/../lib/clang/3.0/include -internal-isystem C:\Program"
#include "..." search starts here:
End of search list.
error: error reading 'Studio'
ignoring nonexistent directory "C:\Projects" -fmodule-cache-path C:\Users\clb\Ap
pData\Local\Temp\clang-module-cache -internal-isystem c:/projects/llvm/build30/b
in/Release/../lib/clang/3.0/include -internal-isystem C:\Program"
#include "..." search starts here:
End of search list.
error: unable to open output file '': 'Error opening output file '10.0/VC/includ
e -internal-isystem C:/Program.o''
ignoring nonexistent directory "C:\Projects" -fmodule-cache-path C:\Users\clb\Ap
pData\Local\Temp\clang-module-cache -internal-isystem c:/projects/llvm/build30/b
in/Release/../lib/clang/3.0/include -internal-isystem C:\Program"
#include "..." search starts here:
End of search list.
error: unable to open output file '': 'Error opening output file 'Files/Microsof
t.o''
ignoring nonexistent directory "C:\Projects" -fmodule-cache-path C:\Users\clb\Ap
pData\Local\Temp\clang-module-cache -internal-isystem c:/projects/llvm/build30/b
in/Release/../lib/clang/3.0/include -internal-isystem C:\Program"
#include "..." search starts here:
End of search list.
error: unable to open output file '': 'Error opening output file 'SDKs/Windows/v
7.1//include -ferror-limit 19 -fmessage-length 80 -fms-extensions -fms-compatibi
lity -fmsc-version=1300 -fdelayed-template-parsing -fgnu-runtime -fobjc-runtime-
has-arc -fobjc-runtime-has-weak -fobjc-fragile-abi -fdiagnostics-show-option -fc
olor-diagnostics -o hello_world.o -x c hello_world.o''
7 errors generated.

C:\Projects\emscripten\tests>