[Pvfs2-developers] ia64 rhel5 configure bug

[David Brown]

> Take a look at maint/config/kernel.m4, and search for 'struct dentry'.
> Add those two -Wno-pointer... flags after -Wno-pointer-sign, run
> 'prepare' to re-generate the configure scripts, and see if that helps
> things.
>
> Let us know how that goes.  A more general solution needs to take into
> account the fact that some older gccs don't have those warning flags.
>

Yup that's works great

diff --git a/maint/config/kernel.m4 b/maint/config/kernel.m4
index 5c527d5..f287d29 100644
--- a/maint/config/kernel.m4
+++ b/maint/config/kernel.m4
@@ -352,7 +352,7 @@ AC_DEFUN([AX_KERNEL_FEATURES],
        dnl certain Fedora FC5 kernel header files throw extra (spurious)
        dnl warnings, which -Wno-pointer-sign silences.
         tmp_cflags=$CFLAGS
-       CFLAGS="$CFLAGS -Werror -Wno-pointer-sign"
+       CFLAGS="$CFLAGS -Werror -Wno-pointer-sign -Wno-strict-aliasing
-Wno-strict-aliasing=2"
        dnl if this test passes, there is a struct dentry* argument
        AC_MSG_CHECKING(if statfs callbacks' arguments in kernel has
struct dentry argument)
        dnl if this test passes, the kernel has it