3 Commits

Author	SHA1	Message	Date
Richard Smith	d31bd24b40	configure: when performing a compiler feature test for a -Wno-foo flag, attempt ... to use -Wfoo instead of -Wno-foo. This works around a bug in some versions of gcc, where it will silently accept an unknown -Wno-foo option, but will generate an error for a compile which uses -Wno-foo if that compile also triggers any warnings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174770 91177308-0d34-0410-b5e6-96231b3b80d8	2013-02-08 22:55:10 +00:00
Rafael Espindola	9993a3aebb	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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151665 91177308-0d34-0410-b5e6-96231b3b80d8	2012-02-28 23:32:06 +00:00
Julien Lerouge	8039e03777	Add an autoconf test to check for optional compiler flags like ... -Wno-missing-field-initializers or -Wno-variadic-macros. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85147 91177308-0d34-0410-b5e6-96231b3b80d8	2009-10-26 19:58:44 +00:00