handle external expat headers
Since the expat headers aren't exported/installed, we need to symlink
them in here for the compiler to find.
BUG=23171578
Change-Id: Ie74b16feb8d4c4b2663f6a0a6b474fadab469302
diff --git a/external-packages/include/expat.h b/external-packages/include/expat.h
new file mode 120000
index 0000000..a439fb4
--- /dev/null
+++ b/external-packages/include/expat.h
@@ -0,0 +1 @@
+../../../../../external/expat/lib/expat.h
\ No newline at end of file
diff --git a/external-packages/include/expat_external.h b/external-packages/include/expat_external.h
new file mode 120000
index 0000000..43de2e6
--- /dev/null
+++ b/external-packages/include/expat_external.h
@@ -0,0 +1 @@
+../../../../../external/expat/lib/expat_external.h
\ No newline at end of file
