Use CMake 3.23 FILE_SET install rules

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.23)
 
 set(CMAKE_C_STANDARD 99)
 
@@ -10,20 +10,20 @@ project(hmac_sha256 LANGUAGES C CXX)
 option(HMAC_SHA256_TESTS "Build unit tests" FALSE)
 option(HMAC_SHA256_EXAMPLES "Build the examples" FALSE)
 
-add_library(hmac_sha256 STATIC
+add_library(hmac_sha256 STATIC)
+target_sources(hmac_sha256
+  PRIVATE
   ${CMAKE_CURRENT_SOURCE_DIR}/sha256.c
   ${CMAKE_CURRENT_SOURCE_DIR}/hmac_sha256.c
+  PUBLIC FILE_SET HEADERS FILES
+  ${CMAKE_CURRENT_SOURCE_DIR}/sha256.h
+  ${CMAKE_CURRENT_SOURCE_DIR}/hmac_sha256.h
 )
-target_include_directories(hmac_sha256 INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
 
 install(TARGETS hmac_sha256
-  LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-)
-
-install(FILES
-  ${CMAKE_CURRENT_SOURCE_DIR}/hmac_sha256.h
-  DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+  LIBRARY DESTINATION           "${CMAKE_INSTALL_LIBDIR}"
+  ARCHIVE DESTINATION           "${CMAKE_INSTALL_LIBDIR}"
+  FILE_SET HEADERS DESTINATION  "${CMAKE_INSTALL_INCLUDEDIR}"
 )
 
 if (HMAC_SHA256_TESTS)

LICENSE

@@ -1,24 +0,0 @@
-This is free and unencumbered software released into the public domain.
-
-Anyone is free to copy, modify, publish, use, compile, sell, or
-distribute this software, either in source code form or as a compiled
-binary, for any purpose, commercial or non-commercial, and by any
-means.
-
-In jurisdictions that recognize copyright laws, the author or authors
-of this software dedicate any and all copyright interest in the
-software to the public domain. We make this dedication for the benefit
-of the public at large and to the detriment of our heirs and
-successors. We intend this dedication to be an overt act of
-relinquishment in perpetuity of all present and future rights to this
-software under copyright law.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
-For more information, please refer to <https://unlicense.org>