From c9ecfb1d81b5592ab9b5978da440b2997b8716a3 Mon Sep 17 00:00:00 2001
From: Colin Walters <walters@verbum.org>
Date: Wed, 24 Jul 2019 21:31:54 +0000
Subject: [PATCH] Add OSTREE_BUILT_FEATURES to ostree-version.h

This way projects can dispatch at run-time based on ostree's
build time options, e.g. detect the availability of GPG.

Closes: #1890
Approved by: jlebon
---
 configure.ac                      |  3 +++
 src/libostree/ostree-version.h.in | 10 ++++++++++
 2 files changed, 13 insertions(+)

diff --git a/configure.ac b/configure.ac
index 3f125638..1d083d95 100644
--- a/configure.ac
+++ b/configure.ac
@@ -584,6 +584,9 @@ OSTREE_FEATURES="$OSTREE_FEATURES $release_build_type"
 # P2P API is public in OSTree >= 2018.6
 OSTREE_FEATURES="$OSTREE_FEATURES p2p"
 
+# Strip leading whitespace
+OSTREE_FEATURES=$(echo ${OSTREE_FEATURES})
+
 AC_CONFIG_FILES([
 Makefile
 apidoc/Makefile
diff --git a/src/libostree/ostree-version.h.in b/src/libostree/ostree-version.h.in
index 8edb9116..2c7ecdec 100644
--- a/src/libostree/ostree-version.h.in
+++ b/src/libostree/ostree-version.h.in
@@ -91,3 +91,13 @@
 #define OSTREE_CHECK_VERSION(year,release)   \
         (OSTREE_YEAR_VERSION > (year) || \
          (OSTREE_YEAR_VERSION == (year) && OSTREE_RELEASE_VERSION >= (release)))
+
+/**
+ * OSTREE_BUILT_FEATURES:
+ *
+ * Whitespace separated set of features this libostree was configured with at build time.
+ * Consult the source code in configure.ac (or the CLI `ostree --version`) for examples.
+ *
+ * Since: 2019.3
+ */
+#define OSTREE_BUILT_FEATURES "@OSTREE_FEATURES@"