Checkpoint work to get GN builds working on Android.

This fixes enough issues so that we can compile and link some libraries, but
it is not yet a working build.

Work remaining:
- base needs JNI support ('base_jni_headers', etc.)
- we need to figure out what should link and/or be APKs to run the tests
- we need to adjust GN to only build in the host config, not the target config.

R=brettw@chromium.org, cjhopman@chromium.org
TBR=jam
BUG=360936

Review URL: https://codereview.chromium.org/227673008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@263440 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 22 insertions, 0 deletions

diff --git a/build/config/BUILDCONFIG.gn b/build/config/BUILDCONFIG.gn
index 57a3486..2172df9 100644
--- a/build/config/BUILDCONFIG.gn
+++ b/build/config/BUILDCONFIG.gn
@@ -343,6 +343,8 @@ if (is_win) {
   native_compiler_configs += [ "//build/config/mac:sdk", ]
 } else if (is_ios) {
   native_compiler_configs += [ "//build/config/ios:sdk", ]
+} else if (is_android) {
+  native_compiler_configs += [ "//build/config/android:sdk", ]
 }
 if (is_clang) {
   native_compiler_configs += [ "//build/config/clang:find_bad_constructs" ]
diff --git a/build/config/android/BUILD.gn b/build/config/android/BUILD.gn
new file mode 100644
index 0000000..185db59
--- /dev/null
+++ b/build/config/android/BUILD.gn
@@ -0,0 +1,20 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/config.gni")
+import("//build/config/sysroot.gni")
+
+config("sdk") {
+  if (sysroot != "") {
+    cflags = [ "--sysroot=" + sysroot ]
+    ldflags = [ "--sysroot=" + sysroot ]
+
+    # Need to get some linker flags out of the sysroot.
+    sysroot_ld_path = rebase_path("//build/config/linux/sysroot_ld_path.py")
+    ldflags += [ exec_script(sysroot_ld_path,
+        [ rebase_path("//build/linux/sysroot_ld_path.sh"), sysroot ],
+        "value")
+    ]
+  }
+}