Instruct clang not to treat unused command line arguments as errors

diff --git a/acinclude/compiler-flags.m4 b/acinclude/compiler-flags.m4
index 345c2dea05bf6fd24f867a78b839087e35129cea..5c30dab870fb631b602288452132b396af967114 100644 (file)
--- a/acinclude/compiler-flags.m4
+++ b/acinclude/compiler-flags.m4
@@ -170,7 +170,7 @@ AC_DEFUN([SQUID_CC_GUESS_OPTIONS], [
    squid_cv_cc_arg_pipe=""
    ;;
   clang) 
-   squid_cv_cxx_option_werror="-Werror -Wno-error=parentheses-equality"
+   squid_cv_cxx_option_werror="-Werror -Wno-error=parentheses-equality -Qunused-arguments"
    squid_cv_cc_option_werror="$squid_cv_cxx_option_werror" 
    squid_cv_cc_option_wall="-Wall"
    squid_cv_cc_option_optimize="-O2"