update clang.cmake

Author: thelfer

cmake/modules/clang.cmake

@@ -3,12 +3,14 @@ if(WIN32)
 endif(WIN32)
 
 tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Weverything")
+tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Wno-c++98-compat-pedantic")
 tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Wno-padded")
 tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Wno-documentation")
 tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Wno-documentation-unknown-command")
 tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Wno-exit-time-destructors")
 tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Wno-global-constructors")
 tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Wno-missing-braces")
+tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Wno-unsafe-buffer-usage")
 tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Wrange-loop-analysis")
 tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Wmove")
 tfel_enable_cxx_compiler_flag(COMPILER_WARNINGS  "Winfinite-recursion")