liblog: git_master@964770 build problem

- darwin does not get log reader

(cherry picked from commit 5feea6890875c9046f40bdadc0dbd4a411e7f3f5)

Change-Id: I64eb69a6099a88d2acf501de725c35741fd7e551
diff --git a/liblog/Android.mk b/liblog/Android.mk
index 5dfbc06..e96f23a 100644
--- a/liblog/Android.mk
+++ b/liblog/Android.mk
@@ -35,8 +35,11 @@
 ifndef WITH_MINGW
     liblog_sources += \
         logprint.c \
-        log_read.c \
         event_tag_map.c
+ifneq ($(HOST_OS),darwin)
+    liblog_sources += \
+        log_read.c
+endif
 else
     liblog_sources += \
         uio.c