add a lib for rendering text in sdl2 and rules to make in makefile

SDL2_ttf/VisualC/pkg-support/cmake/sdl2_ttf-config.cmake

@@ -0,0 +1,51 @@
+# SDL2_ttf CMake configuration file:
+# This file is meant to be placed in a cmake subfolder of SDL2_ttf-devel-2.x.y-VC
+
+include(FeatureSummary)
+set_package_properties(SDL2_ttf PROPERTIES
+    URL "https://www.libsdl.org/projects/SDL_ttf/"
+    DESCRIPTION "Support for TrueType (.ttf) font files with Simple Directmedia Layer"
+)
+
+cmake_minimum_required(VERSION 3.0...3.5)
+
+set(SDL2_ttf_FOUND TRUE)
+
+set(SDL2TTF_VENDORED TRUE)
+
+set(SDL2TTF_HARFBUZZ TRUE)
+set(SDL2TTF_FREETYPE TRUE)
+
+if(CMAKE_SIZEOF_VOID_P STREQUAL "4")
+    set(_sdl_arch_subdir "x86")
+elseif(CMAKE_SIZEOF_VOID_P STREQUAL "8")
+    set(_sdl_arch_subdir "x64")
+else()
+    unset(_sdl_arch_subdir)
+    set(SDL2_ttf_FOUND FALSE)
+    return()
+endif()
+
+set(_sdl2ttf_incdir       "${CMAKE_CURRENT_LIST_DIR}/../include")
+set(_sdl2ttf_library      "${CMAKE_CURRENT_LIST_DIR}/../lib/${_sdl_arch_subdir}/SDL2_ttf.lib")
+set(_sdl2ttf_dll          "${CMAKE_CURRENT_LIST_DIR}/../lib/${_sdl_arch_subdir}/SDL2_ttf.dll")
+
+# All targets are created, even when some might not be requested though COMPONENTS.
+# This is done for compatibility with CMake generated SDL2_ttf-target.cmake files.
+
+if(NOT TARGET SDL2_ttf::SDL2_ttf)
+    add_library(SDL2_ttf::SDL2_ttf SHARED IMPORTED)
+    set_target_properties(SDL2_ttf::SDL2_ttf
+        PROPERTIES
+            INTERFACE_INCLUDE_DIRECTORIES "${_sdl2ttf_incdir}"
+            IMPORTED_IMPLIB "${_sdl2ttf_library}"
+            IMPORTED_LOCATION "${_sdl2ttf_dll}"
+            COMPATIBLE_INTERFACE_BOOL "SDL2_SHARED"
+            INTERFACE_SDL2_SHARED "ON"
+    )
+endif()
+
+unset(_sdl_arch_subdir)
+unset(_sdl2ttf_incdir)
+unset(_sdl2ttf_library)
+unset(_sdl2ttf_dll)