package/network/utils/nftables/patches/101-build-allow-disabling-libreadline-support.patch

   1 From ace4c5eb69ee7dace955acdb23e30e8229b18619 Mon Sep 17 00:00:00 2001
   2 From: Steven Barth <cyrus@openwrt.org>
   3 Date: Wed, 1 Oct 2014 22:40:31 +0200
   4 Subject: [PATCH 1/2] build: allow disabling libreadline-support
   5
   6 This makes nftables a bit more embedded-friendly.
   7
   8 Signed-off-by: Steven Barth <cyrus@openwrt.org>
   9 ---
  10  configure.ac    | 11 +++++++++--
  11  src/Makefile.in |  2 ++
  12  src/main.c      |  6 ++++++
  13  3 files changed, 17 insertions(+), 2 deletions(-)
  14
  15 --- a/configure.ac
  16 +++ b/configure.ac
  17 @@ -71,8 +71,15 @@ AC_CHECK_LIB([nftnl], [nft_rule_alloc],
  18  AC_CHECK_LIB([gmp], [__gmpz_init], ,
  19              AC_MSG_ERROR([No suitable version of libgmp found]))
  20
  21 -AC_CHECK_LIB([readline], [readline], ,
  22 -            AC_MSG_ERROR([No suitable version of libreadline found]))
  23 +
  24 +AC_ARG_WITH([libreadline], [AS_HELP_STRING([--without-libreadline],
  25 +            [Disable libreadline support (no interactive CLI)])], [],
  26 +            [with_libreadline=yes])
  27 +AS_IF([test "x$with_libreadline" != xno], [
  28 +AC_CHECK_LIB([readline],[readline], , AC_MSG_ERROR([No suitable version of libreadline found]))
  29 +])
  30 +AC_SUBST(with_libreadline)
  31 +
  32
  33  # Checks for header files.
  34  AC_HEADER_STDC
  35 --- a/src/Makefile.in
  36 +++ b/src/Makefile.in
  37 @@ -3,7 +3,9 @@ PROGRAMS                += nft
  38  nft-destdir            := @sbindir@
  39
  40  nft-obj                        += main.o
  41 +ifeq (@with_libreadline@,yes)
  42  nft-obj                        += cli.o
  43 +endif
  44  nft-obj                        += rule.o
  45  nft-obj                        += statement.o
  46  nft-obj                        += datatype.o
  47 --- a/src/main.c
  48 +++ b/src/main.c
  49 @@ -335,8 +335,14 @@ int main(int argc, char * const *argv)
  50                 if (scanner_read_file(scanner, filename, &internal_location) < 0)
  51                         goto out;
  52         } else if (interactive) {
  53 +#ifdef HAVE_LIBREADLINE
  54                 cli_init(&state);
  55                 return 0;
  56 +#else
  57 +               fprintf(stderr, "%s: interactive CLI not supported in this build\n",
  58 +                       argv[0]);
  59 +               exit(NFT_EXIT_FAILURE);
  60 +#endif
  61         } else {
  62                 fprintf(stderr, "%s: no command specified\n", argv[0]);
  63                 exit(NFT_EXIT_FAILURE);