Add obstack_printf to libobstack

Add a reimplementation of obstack_printf to libobstack, and wrap
libiberty's obstack.h with a version that declares obstack_printf.

Bug: 199322054
Test: m USE_HOST_MUSL=true abidw
Change-Id: I3988d35ca506fbe6ad61b4b987c637b5ba31e67b

1 files changed, 2 insertions, 0 deletions

diff --git a/Android.bp b/Android.bp
index e37836e..00a3134 100644
--- a/Android.bp
+++ b/Android.bp
@@ -18,9 +18,11 @@ cc_library_host_static {
     },
     srcs: [
         "libiberty/obstack.c",
+        "android/obstack_printf.c",
     ],
     local_include_dirs: ["android"],
     export_include_dirs: [
+        "android/include",
         "include",
     ],
     visibility: [