https://github.com/brofield/simpleini/pull/74
https://github.com/brofield/simpleini/commit/aeacf861a8ad8add5f4974792a88ffea393e41db
From: Alexandre Bouvier <contact@amb.tf>
Date: Tue, 2 Jan 2024 08:42:03 +0100
Subject: [PATCH 1/2] cmake: fix namespace and include dir (#74)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,7 +48,7 @@ configure_package_config_file(${PROJECT_NAME}Config.cmake.in
 )
 
 install(FILES SimpleIni.h
-	DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}
+	DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
 )
 
 install(TARGETS ${PROJECT_NAME}
@@ -62,12 +62,15 @@ install(FILES
 )
 install(EXPORT ${PROJECT_NAME}Targets
 	DESTINATION ${CMAKE_INSTALL_DATADIR}/cmake/${PROJECT_NAME}
-	NAMESPACE EXPORT_NAMESPACE
+	NAMESPACE ${EXPORT_NAMESPACE}
 )
 
-target_include_directories(${PROJECT_NAME} INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
+target_include_directories(${PROJECT_NAME} INTERFACE
+	$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+	$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+)
 
 if(IS_TOPLEVEL_PROJECT)
-	enable_testing()
+	include(CTest)
 	add_subdirectory(tests)
 endif()