From 10602b0030e67c830596e08ffc775039ee0b2607 Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Wed, 8 Mar 2023 13:33:52 +0000
Subject: [PATCH] cmake: Export config files

---
 cmake/config.cmake.in |  5 +++++
 src/CMakeLists.txt    | 24 ++++++++++++++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 cmake/config.cmake.in

diff --git a/cmake/config.cmake.in b/cmake/config.cmake.in
new file mode 100644
index 0000000000000..46b180ab19ec4
--- /dev/null
+++ b/cmake/config.cmake.in
@@ -0,0 +1,5 @@
+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@-targets.cmake")
+
+check_required_components(@PROJECT_NAME@)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index aa608fbc31ab9..f11005294eceb 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -102,6 +102,7 @@ if(SECP256K1_BUILD_CTIME_TESTS)
 endif()
 
 install(TARGETS ${${PROJECT_NAME}_installables}
+  EXPORT ${PROJECT_NAME}-targets
   RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
   LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
   ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
@@ -125,3 +126,26 @@ endif()
 install(FILES ${${PROJECT_NAME}_headers}
   DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
 )
+
+install(EXPORT ${PROJECT_NAME}-targets
+  FILE ${PROJECT_NAME}-targets.cmake
+  NAMESPACE ${PROJECT_NAME}::
+  DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
+)
+
+include(CMakePackageConfigHelpers)
+configure_package_config_file(
+  ${PROJECT_SOURCE_DIR}/cmake/config.cmake.in
+  ${PROJECT_NAME}-config.cmake
+  INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
+  NO_SET_AND_CHECK_MACRO
+)
+write_basic_package_version_file(${PROJECT_NAME}-config-version.cmake
+  COMPATIBILITY SameMajorVersion
+)
+install(
+  FILES
+    ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake
+    ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake
+  DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
+)