Use CMAKE_SOURCE_DIR instead of PROJECT_SOURCE_DIR

Change minimum CMake version

CMakeLists.txt

@@ -1,5 +1,4 @@
-
+cmake_minimum_required(VERSION 3.0.2)
-cmake_minimum_required(VERSION 2.8.3)
 
 # define a macro that helps defining an option
 macro(csfml_set_option var default type docstring)
@@ -17,7 +16,7 @@ csfml_set_option(CMAKE_BUILD_TYPE Release STRING "Choose the type of build (Debu
 project(CSFML)
 
 # include the configuration file
-include(${CMAKE_SOURCE_DIR}/cmake/Config.cmake)
+include(${PROJECT_SOURCE_DIR}/cmake/Config.cmake)
 
 # setup version numbers
 set(VERSION_MAJOR 2)
@@ -25,7 +24,7 @@ set(VERSION_MINOR 5)
 set(VERSION_PATCH 1)
 
 # add the CSFML header path
-include_directories(${CMAKE_SOURCE_DIR}/include)
+include_directories(${PROJECT_SOURCE_DIR}/include)
 
 # add an option for choosing the build type (shared or static)
 csfml_set_option(BUILD_SHARED_LIBS TRUE BOOL "TRUE to build CSFML as shared libraries, FALSE to build it as static libraries")

cmake/Config.cmake

@@ -33,27 +33,12 @@ else()
 endif()
 
 # detect the compiler and its version
-# Note: on some platforms (OS X), CMAKE_COMPILER_IS_GNUCXX is true
+# Note: The detection is order is important because:
-# even when CLANG is used, therefore the Clang test is done first
+# - Visual Studio can both use MSVC and Clang
-if(CMAKE_CXX_COMPILER MATCHES ".*clang[+][+]" OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+# - GNUCXX can still be set on macOS when using Clang
-   # CMAKE_CXX_COMPILER_ID is an internal CMake variable subject to change,
+if(MSVC)
-   # but there is no other way to detect CLang at the moment
-   set(SFML_COMPILER_CLANG 1)
-   execute_process(COMMAND "${CMAKE_CXX_COMPILER}" "--version" OUTPUT_VARIABLE CLANG_VERSION_OUTPUT)
-   string(REGEX REPLACE ".*clang version ([0-9]+\\.[0-9]+).*" "\\1" SFML_CLANG_VERSION "${CLANG_VERSION_OUTPUT}")
-elseif(CMAKE_COMPILER_IS_GNUCXX)
-    set(SFML_COMPILER_GCC 1)
-    execute_process(COMMAND "${CMAKE_CXX_COMPILER}" "-dumpversion" OUTPUT_VARIABLE GCC_VERSION_OUTPUT)
-    string(REGEX REPLACE "([0-9]+\\.[0-9]+).*" "\\1" SFML_GCC_VERSION "${GCC_VERSION_OUTPUT}")
-    execute_process(COMMAND "${CMAKE_CXX_COMPILER}" "--version" OUTPUT_VARIABLE GCC_COMPILER_VERSION)
-    string(REGEX MATCHALL ".*(tdm[64]*-[1-9]).*" SFML_COMPILER_GCC_TDM "${GCC_COMPILER_VERSION}")
-    execute_process(COMMAND "${CMAKE_CXX_COMPILER}" "-dumpmachine" OUTPUT_VARIABLE GCC_MACHINE)
-    string(STRIP "${GCC_MACHINE}" GCC_MACHINE)
-    if(${GCC_MACHINE} MATCHES ".*w64.*")
-        set(SFML_COMPILER_GCC_W64 1)
-    endif()
-elseif(MSVC)
     set(SFML_COMPILER_MSVC 1)
+
     if(MSVC_VERSION EQUAL 1400)
         set(SFML_MSVC_VERSION 8)
     elseif(MSVC_VERSION EQUAL 1500)
@@ -70,6 +55,26 @@ elseif(MSVC)
         set(SFML_MSVC_VERSION 15)
     elseif(MSVC_VERSION LESS_EQUAL 1929)
         set(SFML_MSVC_VERSION 16)
+    elseif(MSVC_VERSION LESS_EQUAL 1939)
+        set(SFML_MSVC_VERSION 17)
+    endif()
+elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    set(SFML_COMPILER_CLANG 1)
+
+    execute_process(COMMAND "${CMAKE_CXX_COMPILER}" "--version" OUTPUT_VARIABLE CLANG_VERSION_OUTPUT)
+    string(REGEX REPLACE ".*clang version ([0-9]+\\.[0-9]+).*" "\\1" SFML_CLANG_VERSION "${CLANG_VERSION_OUTPUT}")
+elseif(CMAKE_COMPILER_IS_GNUCXX)
+    set(SFML_COMPILER_GCC 1)
+
+    execute_process(COMMAND "${CMAKE_CXX_COMPILER}" "-dumpversion" OUTPUT_VARIABLE GCC_VERSION_OUTPUT)
+    string(REGEX REPLACE "([0-9]+\\.[0-9]+).*" "\\1" SFML_GCC_VERSION "${GCC_VERSION_OUTPUT}")
+    execute_process(COMMAND "${CMAKE_CXX_COMPILER}" "--version" OUTPUT_VARIABLE GCC_COMPILER_VERSION)
+    string(REGEX MATCHALL ".*(tdm[64]*-[1-9]).*" SFML_COMPILER_GCC_TDM "${GCC_COMPILER_VERSION}")
+    execute_process(COMMAND "${CMAKE_CXX_COMPILER}" "-dumpmachine" OUTPUT_VARIABLE GCC_MACHINE)
+    string(STRIP "${GCC_MACHINE}" GCC_MACHINE)
+
+    if(GCC_MACHINE MATCHES ".*w64.*")
+        set(SFML_COMPILER_GCC_W64 1)
     endif()
 else()
     message(FATAL_ERROR "Unsupported compiler")

doc/CMakeLists.txt

@@ -3,7 +3,7 @@
 find_package(Doxygen REQUIRED)
 
 # set the input and output documentation paths
-set(DOXYGEN_INPUT_DIR ${CMAKE_SOURCE_DIR})
+set(DOXYGEN_INPUT_DIR ${PROJECT_SOURCE_DIR})
 set(DOXYGEN_OUTPUT_DIR ${CMAKE_BINARY_DIR}/doc)
 
 # see if we can generate the CHM documentation

src/SFML/Audio/CMakeLists.txt

@@ -1,6 +1,6 @@
 
-set(INCROOT ${CMAKE_SOURCE_DIR}/include/SFML/Audio)
+set(INCROOT ${PROJECT_SOURCE_DIR}/include/SFML/Audio)
-set(SRCROOT ${CMAKE_SOURCE_DIR}/src/SFML/Audio)
+set(SRCROOT ${PROJECT_SOURCE_DIR}/src/SFML/Audio)
 
 # all source files
 set(SRC

src/SFML/CMakeLists.txt

@@ -1,9 +1,9 @@
 
 # include the SFML specific macros
-include(${CMAKE_SOURCE_DIR}/cmake/Macros.cmake)
+include(${PROJECT_SOURCE_DIR}/cmake/Macros.cmake)
 
 # add the CSFML sources path
-include_directories(${CMAKE_SOURCE_DIR}/src)
+include_directories(${PROJECT_SOURCE_DIR}/src)
 
 # set the output directory for CSFML libraries
 set(LIBRARY_OUTPUT_PATH "${CMAKE_BINARY_DIR}/lib")

src/SFML/Graphics/CMakeLists.txt

@@ -1,6 +1,6 @@
 
-set(INCROOT ${CMAKE_SOURCE_DIR}/include/SFML/Graphics)
+set(INCROOT ${PROJECT_SOURCE_DIR}/include/SFML/Graphics)
-set(SRCROOT ${CMAKE_SOURCE_DIR}/src/SFML/Graphics)
+set(SRCROOT ${PROJECT_SOURCE_DIR}/src/SFML/Graphics)
 
 # all source files
 set(SRC

src/SFML/Main/CMakeLists.txt

@@ -1,6 +1,6 @@
 
 # define the csfml-main target
-add_library(csfml-main STATIC ${CMAKE_SOURCE_DIR}/src/SFML/Main/SFML_Main.cpp)
+add_library(csfml-main STATIC ${PROJECT_SOURCE_DIR}/src/SFML/Main/SFML_Main.cpp)
 
 # set the debug suffix
 set_target_properties(csfml-main PROPERTIES DEBUG_POSTFIX -d)

src/SFML/Network/CMakeLists.txt

@@ -1,6 +1,6 @@
 
-set(INCROOT ${CMAKE_SOURCE_DIR}/include/SFML/Network)
+set(INCROOT ${PROJECT_SOURCE_DIR}/include/SFML/Network)
-set(SRCROOT ${CMAKE_SOURCE_DIR}/src/SFML/Network)
+set(SRCROOT ${PROJECT_SOURCE_DIR}/src/SFML/Network)
 
 # all source files
 set(SRC

src/SFML/System/CMakeLists.txt

@@ -1,10 +1,10 @@
 
-set(INCROOT ${CMAKE_SOURCE_DIR}/include/SFML/System)
+set(INCROOT ${PROJECT_SOURCE_DIR}/include/SFML/System)
-set(SRCROOT ${CMAKE_SOURCE_DIR}/src/SFML/System)
+set(SRCROOT ${PROJECT_SOURCE_DIR}/src/SFML/System)
 
 # all source files
 set(SRC
-    ${CMAKE_SOURCE_DIR}/include/SFML/GPUPreference.h
+    ${PROJECT_SOURCE_DIR}/include/SFML/GPUPreference.h
     ${INCROOT}/Export.h
     ${SRCROOT}/Clock.cpp
     ${SRCROOT}/ClockStruct.h

src/SFML/Window/CMakeLists.txt

@@ -1,6 +1,6 @@
 
-set(INCROOT ${CMAKE_SOURCE_DIR}/include/SFML/Window)
+set(INCROOT ${PROJECT_SOURCE_DIR}/include/SFML/Window)
-set(SRCROOT ${CMAKE_SOURCE_DIR}/src/SFML/Window)
+set(SRCROOT ${PROJECT_SOURCE_DIR}/src/SFML/Window)
 
 # all source files
 set(SRC