tree 028d2febbf5cf8162d4c228c76e90e5148d92db3
parent d0a1eb7cd361309f9a4f3124a39879efb669db6d
author Colin Cross <ccross@android.com> 1452294396 -0800
committer Dirk Vogt <dirk@fairphone.com> 1489763110 +0100

v8: prevent unnecessary rebuilds

Android.mksnapshot.mk is parsed twice when building for a 64-bit device,
for example once for arm64 and again for arm.  Using += for
LOCAL_CFLAGS_v8_target_* results in cflags being added twice for the
32-bit version.  For a 32-bit device the file is only parsed once and
the cflags are not duplicated.

The cflags are used for host modules, which are shared between builds of
different products.  If the cflags change between products the command
line will change and ninja will rebuild all the files.

Replace += with := for the first assignment to LOCAL_CFLAGS_v8_target_*.

Bug: 26470151

FPIIM-449

Change-Id: Idb7bc157830207fe5314b5b084a0bd564d5f3221