On Fri, May 09, 2014 at 04:56:57PM -0700, Daniele Di Proietto wrote:
> libintel_dpdk.a refuses to link with libopenvswitch unless -ldl is used
>
> Signed-off-by: Daniele Di Proietto <[email protected]>
> ---
> This could probably be fixed also by using -Wl,-whole-archive
> Besides, it looks like a workaround, so if anyone has a better
> solution, that'd be great
It's a little weird that DPDK needs an explicit .a on the link command
line. Any reason we can't just require the user to add the right -L to
bring in the .a file's directory, then do:
AC_SEARCH_LIBS([...some dpdk function...], [intel_dpdk])
instead of the hard-coded path.
And if -ldl is needed sometimes, then you could just iterate:
found=false
save_LIBS=$LIBS
for extras in "" "-ldl "; do
LIBS="$extras$save_LIBS"
AC_SEARCH_LIBS([...some dpdk function...], [intel_dpdk], [found=:])
if $found; then
LIBS="-lintel_dpdk $extras$LIBS"
break
fi
done
if $found; then :; else
AC_MSG_FAILURE([are you sure dpdk is installed?])
fi
(Above not actually tested)
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