Package libc++.so in the build-tools.

This is needed by llvm-rs-cc.

Bug: 17584627
Change-Id: Id0ee90ccead26d3078f3f25022391d6866152203
diff --git a/build/sdk-darwin-x86.atree b/build/sdk-darwin-x86.atree
index 9283463..9f1eb38 100644
--- a/build/sdk-darwin-x86.atree
+++ b/build/sdk-darwin-x86.atree
@@ -26,6 +26,7 @@
 lib/libbcc.dylib                                      strip build-tools/${PLATFORM_NAME}/libbcc.dylib
 lib/libbcinfo.dylib                                   strip build-tools/${PLATFORM_NAME}/libbcinfo.dylib
 lib/libclang.dylib                                    strip build-tools/${PLATFORM_NAME}/libclang.dylib
+lib/libc++.dylib                                      strip build-tools/${PLATFORM_NAME}/libc++.dylib
 
 prebuilts/sdk/tools/darwin/arm-linux-androideabi-ld   strip build-tools/${PLATFORM_NAME}/arm-linux-androideabi-ld
 prebuilts/sdk/tools/darwin/i686-linux-android-ld      strip build-tools/${PLATFORM_NAME}/i686-linux-android-ld
diff --git a/build/sdk-linux-x86.atree b/build/sdk-linux-x86.atree
index 8d9ca2b..745be49 100644
--- a/build/sdk-linux-x86.atree
+++ b/build/sdk-linux-x86.atree
@@ -26,6 +26,7 @@
 lib/libbcc.so                                        strip build-tools/${PLATFORM_NAME}/libbcc.so
 lib/libbcinfo.so                                     strip build-tools/${PLATFORM_NAME}/libbcinfo.so
 lib/libclang.so                                      strip build-tools/${PLATFORM_NAME}/libclang.so
+lib/libc++.so                                        strip build-tools/${PLATFORM_NAME}/libc++.so
 
 prebuilts/sdk/tools/linux/arm-linux-androideabi-ld   strip build-tools/${PLATFORM_NAME}/arm-linux-androideabi-ld
 prebuilts/sdk/tools/linux/i686-linux-android-ld      strip build-tools/${PLATFORM_NAME}/i686-linux-android-ld