mdbx-cmake: синхронизация утилит между проектами.

cmake/compiler.cmake

@@ -31,9 +31,11 @@ if(NOT CMAKE_VERSION VERSION_LESS 3.9)
   cmake_policy(SET CMP0069 NEW)
 endif()
 
+cmake_policy(SET CMP0054 NEW)
+
 if(CMAKE_VERSION MATCHES ".*MSVC.*" AND CMAKE_VERSION VERSION_LESS 3.16)
   message(FATAL_ERROR "CMake from MSVC kit is unfit! "
-                      "Please use MSVC2019 with modern CMake the original CMake from https://cmake.org/download/")
+                      "Please use MSVC-2019 with modern CMake the original CMake from https://cmake.org/download/")
 endif()
 
 if(NOT (CMAKE_C_COMPILER_LOADED OR CMAKE_CXX_COMPILER_LOADED))

cmake/utils.cmake

@@ -12,6 +12,21 @@ endif()
 cmake_policy(PUSH)
 cmake_policy(VERSION ${CMAKE_MINIMUM_REQUIRED_VERSION})
 
+macro(add_option HIVE NAME DESCRIPTION DEFAULT)
+  list(APPEND ${HIVE}_BUILD_OPTIONS ${HIVE}_${NAME})
+  if(NOT ${DEFAULT} STREQUAL "AUTO")
+    option(${HIVE}_${NAME} "${DESCRIPTION}" ${DEFAULT})
+  elseif(NOT DEFINED ${HIVE}_${NAME})
+    set(${HIVE}_${NAME}_AUTO ON)
+  endif()
+endmacro()
+
+macro(set_if_undefined VARNAME)
+  if(NOT DEFINED "${VARNAME}")
+    set("${VARNAME}" ${ARGN})
+  endif()
+endmacro()
+
 macro(add_compile_flags languages)
   foreach(_lang ${languages})
     string(REPLACE ";" " " _flags "${ARGN}")