readme: move git info to CODING

[openafs.git] / README.WARNINGS

diff --git a/README.WARNINGS b/README.WARNINGS
index 4122d33..fa5fb8f 100644 (file)
--- a/README.WARNINGS
+++ b/README.WARNINGS
@@ -27,6 +27,17 @@ with non-gcc compilers, and can be disabled if desired. For example:
   # pragma GCC diagnostic warning "-Wold-style-definition"
   #endif
 
+It would appear that when built with -Werror, the llvm clang compiler will
+still upgrade warnings that are suppresed in this way to errors. In this case,
+the fix is to mark that warning as ignored, but only for clang. For example:
+  #ifdef IGNORE_SOME_GCC_WARNINGS
+  # ifdef __clang__
+  #  pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+  # else
+  #  pragma GCC diagnostic warning "-Wdeprecated-declarations"
+  # endif
+  #endif
+
 If a pragma isn't available for your particular warning, you will need to
 disable all warnings for the file in question. You can do this by supplying
 the autoconf macro @CFLAGS_NOERROR@ in the build options for the file. For
@@ -49,6 +60,7 @@ bucoord/ubik_db_if.c : strict-proto  : Ubik_Call
 bucoord/commands.c   : all          : Ubik_Call
                                     : signed vs unsigned for dates
 butc/tcudbprocs.c    : all          : ubik_Call
+external/heimdal/hcrypto/validate.c: all: statement with empty body
 kauth/admin_tools.c  : all           : signed vs unsigned for dates
 kauth/authclient.c   : strict-proto  : ubik_Call nonsense
 libadmin/kas/afs_kasAdmin.c: all     : Ubik_Call nonsense