From 49e5aefa8028ad3095c221d56e9ddef66a814d88 Mon Sep 17 00:00:00 2001
From: Henner Zeller <h.zeller@acm.org>
Date: Sat, 16 Nov 2024 20:50:59 -0800
Subject: [PATCH] Generate and install a version header alongside manifold
 headers.

---
 CMakeLists.txt | 14 ++++++++++++++
 version.h.in   | 19 +++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 version.h.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 268a4d3a4..daa2e482f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -421,6 +421,20 @@ install(
   DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/manifold
 )
 
+configure_file(
+  version.h.in
+  ${CMAKE_CURRENT_BINARY_DIR}/include/manifold/version.h
+  @ONLY
+)
+set_source_files_properties(
+  include/manifold/version.h
+  PROPERTIES GENERATED TRUE
+)
+install(
+  FILES ${CMAKE_CURRENT_BINARY_DIR}/include/manifold/version.h
+  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/manifold
+)
+
 # PkgConfig file
 if(MANIFOLD_CROSS_SECTION)
   set(TEMPLATE_OPTIONAL_CLIPPER "Clipper2")
diff --git a/version.h.in b/version.h.in
new file mode 100644
index 000000000..256ae36db
--- /dev/null
+++ b/version.h.in
@@ -0,0 +1,19 @@
+// Copyright 2024 The Manifold Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#define MANIFOLD_VERSION_MAJOR @MANIFOLD_VERSION_MAJOR@
+#define MANIFOLD_VERSION_MINOR @MANIFOLD_VERSION_MINOR@
+#define MANIFOLD_VERSION_PATH @MANIFOLD_VERSION_PATCH@