mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2025-12-24 21:50:17 +01:00
c2fffd76d2
This change silences autotools warnings about source code not being inside AC_LANG_SOURCE in AC_LANG_CONFTEST.
62 lines
1.6 KiB
Text
62 lines
1.6 KiB
Text
AC_DEFUN([NM_LIBNL_CHECK], [
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AC_MSG_CHECKING([for libnl address caching bug])
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save_CFLAGS="$CFLAGS"
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save_LDFLAGS="$LDFLAGS"
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CFLAGS="$CFLAGS $LIBNL_CFLAGS"
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LDFLAGS="$LDFLAGS $LIBNL_LIBS"
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AC_RUN_IFELSE([AC_LANG_PROGRAM([[
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#include <stdio.h>
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#include <netlink/route/addr.h>
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#include <netlink/object-api.h>
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]],
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[[
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struct nl_handle *nlh;
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struct nl_cache *cache;
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struct nl_object *obj;
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nlh = nl_handle_alloc ();
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if (nl_connect (nlh, NETLINK_ROUTE) < 0) {
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fprintf (stderr, "couldn't connect to netlink: %s", nl_geterror ());
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return 3;
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}
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cache = rtnl_addr_alloc_cache (nlh);
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if (!cache || nl_cache_nitems (cache) == 0) {
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fprintf (stderr, "couldn't fill address cache: %s", nl_geterror ());
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return 3;
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}
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obj = nl_cache_get_first (cache);
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if (nl_object_identical (obj, obj))
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return 0;
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nl_cache_get_ops (cache)->co_obj_ops->oo_id_attrs &= ~0x80;
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if (nl_object_identical (obj, obj))
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return 1;
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else
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return 2;
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]])], libnl_bug=$?, libnl_bug=$?, libnl_bug=cross)
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CFLAGS="$save_CFLAGS"
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LDFLAGS="$save_LDFLAGS"
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case $libnl_bug in
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0) AC_MSG_RESULT([no])
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;;
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1) AC_MSG_RESULT([yes, using workaround])
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AC_DEFINE(LIBNL_NEEDS_ADDR_CACHING_WORKAROUND, 1, [Define this to hack around buggy libnl rtnl_addr caching])
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;;
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2) AC_MSG_RESULT([yes, and workaround doesn't work])
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AC_MSG_ERROR([Installed libnl has broken address caching; please patch or upgrade])
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;;
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cross) AC_MSG_RESULT([cross-compiling... assuming it works!])
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;;
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*) AC_MSG_RESULT([?])
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AC_MSG_ERROR([libnl test program failed])
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;;
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esac
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])
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