diff options
| author | Brian Behlendorf <[email protected]> | 2011-04-19 10:39:31 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2011-04-19 10:44:10 -0700 |
| commit | 12c1acde76683108441827ae9affba1872f3afe5 (patch) | |
| tree | 6800b49b99d7e5c868a64d8511ab9232bb3a1b73 /config/kernel.m4 | |
| parent | 79713039a2b6e0ed223d141b4a8a8455f282d2f2 (diff) | |
Set -Wno-unused-but-set-variable globally
As of gcc-4.6 the option -Wunused-but-set-variable is enabled by
default. While this is a useful warning there are numerous places
in the ZFS code when a variable is set and then only checked in an
ASSERT(). To avoid having to update every instance of this in the
code we now set -Wno-unused-but-set-variable to suppress the warning.
Additionally, when building with --enable-debug and -Werror set these
warning also become fatal. We can reevaluate the suppression of these
error at a later time if it becomes an issue. For now we are basically
just reverting to the previous gcc behavior.
Diffstat (limited to 'config/kernel.m4')
| -rw-r--r-- | config/kernel.m4 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/config/kernel.m4 b/config/kernel.m4 index 510f6dbc7..f31d93c97 100644 --- a/config/kernel.m4 +++ b/config/kernel.m4 @@ -44,6 +44,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [ dnl # -Wall -fno-strict-aliasing -Wstrict-prototypes and other dnl # compiler options are added by the kernel build system. + KERNELCPPFLAGS="$KERNELCPPFLAGS -Wno-unused-but-set-variable" KERNELCPPFLAGS="$KERNELCPPFLAGS -DHAVE_SPL -D_KERNEL" KERNELCPPFLAGS="$KERNELCPPFLAGS -DTEXT_DOMAIN=\\\"zfs-linux-kernel\\\"" |