Add llvm-rs-cc to the tools buildable under Windows.

To be able to "make llvm-rs-cc" as a Windows SDK tool, we
first need to let the build system know which folders can be
built.

Once this is done, building can be done using the mingw32
package to do cross-compiling under Linux:
  $ USE_MINGW=1 make llvm-rs-cc

Change-Id: I5538f4c52c74dad18dd50b59c9bdbcd6de3fd191

diff --git a/core/main.mk b/core/main.mk
index 4d2a199..9d8e692 100644 (file)
--- a/core/main.mk
+++ b/core/main.mk
@@ -397,13 +397,16 @@ subdirs := \
        development/host \
        development/tools/etc1tool \
        development/tools/line_endings \
+       external/clang \
        external/easymock \
        external/expat \
        external/libpng \
+       external/llvm \
        external/qemu \
        external/sqlite/dist \
        external/zlib \
        frameworks/base \
+       frameworks/compile \
        sdk/emulator/mksdcard \
        sdk/sdklauncher \
        system/core/adb \