diff options
Diffstat (limited to 'm4/pdns_with_xsk.m4')
| -rw-r--r-- | m4/pdns_with_xsk.m4 | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/m4/pdns_with_xsk.m4 b/m4/pdns_with_xsk.m4 new file mode 100644 index 0000000..a8faf13 --- /dev/null +++ b/m4/pdns_with_xsk.m4 @@ -0,0 +1,38 @@ +AC_DEFUN([PDNS_WITH_XSK],[ + AC_MSG_CHECKING([if we have AF_XDP (XSK) support]) + AC_ARG_WITH([xsk], + AS_HELP_STRING([--with-xsk],[enable AF_XDP (XDK) support @<:@default=auto@:>@]), + [with_xsk=$withval], + [with_xsk=auto], + ) + AC_MSG_RESULT([$with_xsk]) + + AS_IF([test "x$with_xsk" != "xno"], [ + AS_IF([test "x$with_xsk" = "xyes" -o "x$with_xsk" = "xauto"], [ + PKG_CHECK_MODULES([XDP], [libxdp], [ + AC_DEFINE([HAVE_XDP], [1], [Define to 1 if you have the XDP library]) + ], [:]) + PKG_CHECK_MODULES([BPF], [libbpf], [ + AC_DEFINE([HAVE_BPF], [1], [Define to 1 if you have the BPF library]) + save_CFLAGS=$CFLAGS + save_LIBS=$LIBS + CFLAGS="$BPF_CFLAGS $CFLAGS" + LIBS="$BPF_LIBS $LIBS" + AC_CHECK_FUNCS([bpf_xdp_query]) + CFLAGS=$save_CFLAGS + LIBS=$save_LIBS + ], [:]) + ]) + ]) + + AM_CONDITIONAL([HAVE_XSK], [test x"$BPF_LIBS" != "x" -a x"$XDP_LIBS" != "x"]) + AM_COND_IF([HAVE_XSK], [ + AC_DEFINE([HAVE_XSK], [1], [Define to 1 if you have AF_XDP (XSK) support enabled]) + ]) + + AS_IF([test "x$with_xsk" = "xyes"], [ + AS_IF([test x"$BPF_LIBS" = "x" -o x"$XDP_LIBS" = "x" ], [ + AC_MSG_ERROR([AF_XDP (XSK) support requested but required libbpf and/or libxdp were not found]) + ]) + ]) +]) |