Install headers more elegantly.

CMakeLists.txt

@@ -1,6 +1,7 @@
-# Support version 3.1 and above, but use policy settings up to 3.14.
-cmake_minimum_required(VERSION 3.1...3.14)
-# Ranges are supported from 3.12, set policy to current for 3.1 - 3.11.
+# Support version 3.6 and above, but use policy settings up to 3.14.
+# 3.6 is needed because of IMPORTED_TARGET in pkg_check_modules().
+cmake_minimum_required(VERSION 3.6...3.14)
+# Ranges are supported from 3.12, set policy to current for < 3.12.
 if(${CMAKE_VERSION} VERSION_LESS 3.12)
   cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
 endif()
@@ -18,9 +19,7 @@ endif()
 # All custom build switches.
 option(WITH_EXAMPLES "Compile examples." NO)
 option(WITH_TESTS "Compile tests." NO)
-
-# Build shared libs by default but allow overriding.
-set(BUILD_SHARED_LIBS YES CACHE BOOL "Build shared libs.")
+option(BUILD_SHARED_LIBS "Build shared libraries." YES)
 
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED YES)
@@ -46,7 +45,6 @@ else()
 endif()
 
 add_subdirectory(src)
-add_subdirectory(include)
 add_subdirectory(pkg-config)
 add_subdirectory(cmake)
 

LICENSE

@@ -0,0 +1,26 @@
+Copyright (c) 2019 tastytea <tastytea@tastytea.de>. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors
+may be used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

examples/example.cpp

@@ -1,3 +1,5 @@
+/*  This file is part of xdgcfg. */
+
 #include <iostream>
 #include <libconfig.h++>
 #include "xdgcfg.hpp"

include/CMakeLists.txt

@@ -1,3 +0,0 @@
-include(GNUInstallDirs)
-
-install(FILES "xdgcfg.hpp" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")

include/xdgcfg.hpp

@@ -1,5 +1,7 @@
-/*  Public Domain / CC-0
- *  Author: tastytea <tastytea@tastytea.de>
+/*  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify it
+ *  under the terms of the BSD-3-Clause license.
  */
 
 #ifndef XDGCFG_HPP

src/CMakeLists.txt

@@ -4,11 +4,13 @@ find_package(PkgConfig REQUIRED)
 pkg_check_modules(libxdg-basedir REQUIRED IMPORTED_TARGET libxdg-basedir)
 pkg_check_modules(libconfig++ REQUIRED IMPORTED_TARGET libconfig++)
 
-add_library(${PROJECT_NAME} "xdgcfg.cpp" "../include/xdgcfg.hpp")
+set(${PROJECT_NAME}_public_headers "../include/xdgcfg.hpp")
+add_library(${PROJECT_NAME} "xdgcfg.cpp" "${${PROJECT_NAME}_public_headers}")
 
 set_target_properties(xdgcfg PROPERTIES
   VERSION ${PROJECT_VERSION}
-  SOVERSION ${${PROJECT_NAME}_VERSION_MAJOR})
+  SOVERSION ${${PROJECT_NAME}_VERSION_MAJOR}
+  PUBLIC_HEADER "${${PROJECT_NAME}_public_headers}")
 
 target_include_directories(${PROJECT_NAME}
   PUBLIC
@@ -22,4 +24,5 @@ target_link_libraries(${PROJECT_NAME}
 install(TARGETS ${PROJECT_NAME}
   EXPORT "${PROJECT_NAME}Targets"
   LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}")
+  ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+  PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")

src/xdgcfg.cpp

@@ -1,5 +1,7 @@
-/*  Public Domain / CC-0
- *  Author: tastytea <tastytea@tastytea.de>
+/*  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify it
+ *  under the terms of the BSD-3-Clause license.
  */
 
 #include <basedir.h>