diff --git a/cmake/rules.cmake b/cmake/rules.cmake
index 988c2fb..897a0c8 100644
--- a/cmake/rules.cmake
+++ b/cmake/rules.cmake
@@ -1,8 +1,23 @@
 #cmake_policy( SET CMP0002 OLD )
 
-add_compile_options( -std=c++23 )
+# C++23 isn't widely supported among gnu-ish compilers yet... so 2b will have to do, for now.
+add_compile_options( -std=c++2b )
+
+if( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" )
 add_compile_options( -fdiagnostics-column-unit=byte )
 add_compile_options( -fconcepts-diagnostics-depth=0 )
+endif()
+
+if( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" )
+add_compile_options( -Wno-inline-namespace-reopened-noninline )
+add_compile_options( -Wno-unknown-warning-option )
+add_compile_options( -Wno-unused-comparison )
+add_compile_options( -Wno-inconsistent-missing-override )
+add_compile_options( -DBOOST_NO_CXX98_FUNCTION_BASE )
+endif()
+
+
+
 include_directories( ${CMAKE_BINARY_DIR} . )
 
 if( "${CMAKE_BUILD_TYPE}" STREQUAL "Debug" )