From: John McCall <rjmccall@apple.com>
Date: Fri, 6 Nov 2009 07:53:21 +0000 (+0000)
Subject: Create a warning group "non-gcc" for diagnostics which are not enabled
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4c2620705b87ab6899fb2756bf191bb89d1995c8;p=clang

Create a warning group "non-gcc" for diagnostics which are not enabled
by default in GCC.  Users who want to emulate gcc's warning behavior
exactly should be able to use CC="clang -Wno-non-gcc";  this should help
projects to transition.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86241 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Basic/DiagnosticGroups.td b/include/clang/Basic/DiagnosticGroups.td
index 2a998d17c6..bfaebae873 100644
--- a/include/clang/Basic/DiagnosticGroups.td
+++ b/include/clang/Basic/DiagnosticGroups.td
@@ -159,3 +159,7 @@ def : DiagGroup<"all", [Most, Parentheses]>;
 def : DiagGroup<"", [Extra]>;  // -W = -Wextra
 def : DiagGroup<"endif-labels", [ExtraTokens]>; // endif-labels = endif-tokens
 
+// A warning group for warnings that we want to have on by default in clang,
+// but which aren't no by default in GCC.
+def NonGCC : DiagGroup<"non-gcc",
+    [SignCompare]>;