diff --git a/CMakeLists.txt b/CMakeLists.txt
index ca52e7e..3184acf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,6 +28,8 @@ if (NOT CMAKE_CXX_LINK_PIE_SUPPORTED)
     message(WARNING "Link-time PIE not supported: ${pie_output}.\n")
 endif()
 set(CMAKE_CXX_FLAGS "-Wall")
+set(MINIMAL_GNU "11.0")
+set(MINIMAL_CLANG "13.0")
 
 if (NOT MSVC)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
@@ -47,13 +49,13 @@ endif()
 
 if (${CMAKE_CXX_COMPILER_ID} STREQUAL GNU)
     if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 11.0)
-        message(FATAL_ERROR "A GNU compiler version of preferably 11 or higher is required.")
+        message(FATAL_ERROR "G++ ${MINIMAL_GNU} or higher is required.")
     endif()
     set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fira-loop-pressure -ftree-loop-distribution -floop-interchange -fipa-pta -fivopts -s")
     set(CMAKE_CXX_FLAGS "-fno-use-linker-plugin -fwhole-program ${CMAKE_CXX_FLAGS}")
 elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL Clang)
     if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 13.0)
-        message(FATAL_ERROR "Clang 13.0 or higher is required.")
+        message(FATAL_ERROR "Clang ${MINIMAL_CLANG} or higher is required.")
     endif()
     set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
     set(CMAKE_CXX_FLAGS "-fwhole-program-vtables ${CMAKE_CXX_FLAGS}")
@@ -128,7 +130,7 @@ if (UNIX AND NOT MINGW)
     if (CPACK_RPM_PACKAGE_SOURCES)
         set(CPACK_RPM_SOURCE_PKG_PACKAGING_INSTALL_PREFIX "/")
         set(CPACK_GENERATOR RPM)
-        set(CPACK_RPM_BUILDREQUIRES "cmake >= 3.18, clang >= 11.0.0")
+        set(CPACK_RPM_BUILDREQUIRES "cmake >= ${CMAKE_MINIMUM_REQUIRED_VERSION}, clang >= ${MINIMAL_CLANG}.0")
         install(DIRECTORY src DESTINATION ${CPACK_RPM_SOURCE_PKG_PACKAGING_INSTALL_PREFIX})
         install(DIRECTORY resources DESTINATION ${CPACK_RPM_SOURCE_PKG_PACKAGING_INSTALL_PREFIX})
         install(DIRECTORY scripts DESTINATION ${CPACK_RPM_SOURCE_PKG_PACKAGING_INSTALL_PREFIX})