llvm-mirror/autoconf/m4/cxx_flag_check.m4

AC_DEFUN([CXX_FLAG_CHECK],
  [AC_SUBST($1, `$CXX -Werror $2 -fsyntax-only -xc /dev/null 2>/dev/null && echo $2`)])
Add an autoconf test to check for optional compiler flags like -Wno-missing-field-initializers or -Wno-variadic-macros. llvm-svn: 85147 2009-10-26 19:58:44 +00:00			`AC_DEFUN([CXX_FLAG_CHECK],`
Enable -Wcovered-switch-default again, but add -Werror to the checks to make sure we don't use it with compilers that don't support it. llvm-svn: 151665 2012-02-28 23:32:06 +00:00			[AC_SUBST($1, `$CXX -Werror $2 -fsyntax-only -xc /dev/null 2>/dev/null && echo $2`)])