Switch some build tools to Soong

In preparation for including them in prebuilts/build-tools.

acp: We use a prebuilt in prebuilts/sdk, but it's not part of the sdk.

ijar: We use the host libstdc++ to workaround the lack of libc++ on
some unbundled branches.

ziptime: We disable this on unbundled builds, due to the lack of libc++.

Change-Id: Ib9766b1dbddd151c38ff27c529865200ab37fce1
diff --git a/libs/host/Android.bp b/libs/host/Android.bp
new file mode 100644
index 0000000..e5a5ecf
--- /dev/null
+++ b/libs/host/Android.bp
@@ -0,0 +1,20 @@
+cc_library_host_static {
+
+    srcs: ["CopyFile.c"],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+    ],
+
+    name: "libhost",
+    target: {
+        windows: {
+            enabled: true,
+        },
+    },
+    local_include_dirs: ["include"],
+    export_include_dirs: ["include"],
+    stl: "none",
+
+}
diff --git a/libs/host/Android.mk b/libs/host/Android.mk
deleted file mode 100644
index 5e6a291..0000000
--- a/libs/host/Android.mk
+++ /dev/null
@@ -1,18 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:= \
-    CopyFile.c
-
-LOCAL_CFLAGS := -Werror -Wall
-
-LOCAL_MODULE:= libhost
-LOCAL_MODULE_HOST_OS := darwin linux windows
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-LOCAL_CXX_STL := none
-
-include $(BUILD_HOST_STATIC_LIBRARY)
-
-# Include toolchain prebuilt modules if they exist.
--include $(TARGET_TOOLCHAIN_ROOT)/toolchain.mk