CMake: generate a summary of the configuration

CMakeLists.txt

@@ -4,11 +4,22 @@ project(ebml VERSION 2.0.0)
 
 include(CMakeDependentOption)
 
+include( FeatureSummary )
+
 option(DISABLE_PKGCONFIG "Disable PkgConfig module generation" OFF)
+add_feature_info(DISABLE_PKGCONFIG DISABLE_PKGCONFIG "doesn't generate pkgconfig config file")
+
 option(DISABLE_CMAKE_CONFIG "Disable CMake package config module generation" OFF)
+add_feature_info(DISABLE_CMAKE_CONFIG DISABLE_CMAKE_CONFIG "doesn't generate CMake config files")
+
 cmake_dependent_option(BUILD_SHARED_LIBS "Build libebml as a shared library (except Windows)" OFF "NOT WIN32" OFF)
+add_feature_info(BUILD_SHARED_LIBS BUILD_SHARED_LIBS "build as a dynamic library")
+
 option(BUILD_TESTING "Build tests" OFF)
+add_feature_info(BUILD_TESTING BUILD_TESTING "build test code")
+
 option(DEV_MODE "Developer mode with extra compilation checks" OFF)
+add_feature_info(DEV_MODE DEV_MODE "extra compilation checks on developer mode")
 
 include(GNUInstallDirs)
 
@@ -207,3 +218,5 @@ if(NOT DISABLE_CMAKE_CONFIG)
     ${CMAKE_CURRENT_BINARY_DIR}/EBMLConfigVersion.cmake
       DESTINATION ${CMAKE_INSTALL_PACKAGEDIR})
 endif()
+
+feature_summary(DESCRIPTION "libebml build configuration" WHAT ALL)