From 11346adaaaf48b541d3fe139fc6f3a7acc766859 Mon Sep 17 00:00:00 2001
From: Ben Morgan <ben.morgan@warwick.ac.uk>
Date: Thu, 2 May 2024 09:55:48 +0100
Subject: [PATCH] Configure and install CMake config file for clients

G4VG does not currently install a config file for use with CMake's
find_package command. Downstream clients cannot therefore find nor
export G4VG in their projects.

Configure and install config and version files for G4VG for use
by CMake's find_package command.
---
 CMakeLists.txt            | 20 ++++++++++++++++++++
 cmake/G4VGConfig.cmake.in |  4 ++++
 2 files changed, 24 insertions(+)
 create mode 100644 cmake/G4VGConfig.cmake.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0aac8db..7fab298 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,6 +62,26 @@ endif()
 
 set(G4VG_INSTALL_CMAKECONFIGDIR "${CMAKE_INSTALL_LIBDIR}/cmake/G4VG")
 
+# Install 'G4VGConfig.cmake'
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file("${CMAKE_CURRENT_BINARY_DIR}/G4VGConfigVersion.cmake"
+  COMPATIBILITY AnyNewerVersion
+)
+configure_package_config_file(
+  "cmake/G4VGConfig.cmake.in"
+  "${CMAKE_CURRENT_BINARY_DIR}/G4VGConfig.cmake"
+  INSTALL_DESTINATION "${G4VG_INSTALL_CMAKECONFIGDIR}"
+  NO_SET_AND_CHECK_MACRO
+  NO_CHECK_REQUIRED_COMPONENTS_MACRO
+)
+
+install(FILES
+  "${CMAKE_CURRENT_BINARY_DIR}/G4VGConfigVersion.cmake"
+  "${CMAKE_CURRENT_BINARY_DIR}/G4VGConfig.cmake"
+  DESTINATION "${G4VG_INSTALL_CMAKECONFIGDIR}"
+  COMPONENT development
+)
+
 # Install 'G4VGTargets.cmake', included by G4VGConfig.cmake, which
 # references the targets we install.
 install(EXPORT g4vg-targets
diff --git a/cmake/G4VGConfig.cmake.in b/cmake/G4VGConfig.cmake.in
new file mode 100644
index 0000000..ec29d36
--- /dev/null
+++ b/cmake/G4VGConfig.cmake.in
@@ -0,0 +1,4 @@
+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/G4VGTargets.cmake")
+