From d848717095ce5ea00ada2890191064d073bb238f Mon Sep 17 00:00:00 2001
From: Colin Cross <ccross@android.com>
Date: Wed, 8 Sep 2021 15:00:20 -0700
Subject: Compile libobstack for the platform

elfutils uses the obstack glibc extension, which isn't provided by musl.
Compile obstack.c from gcc's libiberty into libobstack for use alongside
musl.

Bug: 199322054
Test: m USE_HOST_MUSL=true libobstack
Change-Id: I26e28c9f967c493bad7f9150205c060bb602579a
---
 Android.bp       | 29 +++++++++++++++++++++++++++++
 android/config.h |  0
 2 files changed, 29 insertions(+)
 create mode 100644 Android.bp
 create mode 100644 android/config.h

diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..e37836e
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,29 @@
+package {
+    default_applicable_licenses: ["external_obstack_license"],
+}
+
+license {
+    name: "external_obstack_license",
+    license_kinds: ["SPDX-license-identifier-LGPL-2.1"],
+    license_text: ["LICENSE"],
+}
+
+cc_library_host_static {
+    name: "libobstack",
+    enabled: false,
+    target: {
+        musl: {
+            enabled: true,
+        },
+    },
+    srcs: [
+        "libiberty/obstack.c",
+    ],
+    local_include_dirs: ["android"],
+    export_include_dirs: [
+        "include",
+    ],
+    visibility: [
+        "//external/elfutils:__subpackages__",
+    ],
+}
diff --git a/android/config.h b/android/config.h
new file mode 100644
index 0000000..e69de29
-- 
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