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63 lines
1.9 KiB
63 lines
1.9 KiB
From ace4c5eb69ee7dace955acdb23e30e8229b18619 Mon Sep 17 00:00:00 2001
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From: Steven Barth <cyrus@openwrt.org>
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Date: Wed, 1 Oct 2014 22:40:31 +0200
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Subject: [PATCH 1/2] build: allow disabling libreadline-support
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This makes nftables a bit more embedded-friendly.
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Signed-off-by: Steven Barth <cyrus@openwrt.org>
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---
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configure.ac | 11 +++++++++--
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src/Makefile.in | 2 ++
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src/main.c | 6 ++++++
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3 files changed, 17 insertions(+), 2 deletions(-)
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--- a/configure.ac
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+++ b/configure.ac
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@@ -71,8 +71,15 @@ AC_CHECK_LIB([nftnl], [nft_rule_alloc],
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AC_CHECK_LIB([gmp], [__gmpz_init], ,
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AC_MSG_ERROR([No suitable version of libgmp found]))
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-AC_CHECK_LIB([readline], [readline], ,
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- AC_MSG_ERROR([No suitable version of libreadline found]))
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+
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+AC_ARG_WITH([libreadline], [AS_HELP_STRING([--without-libreadline],
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+ [Disable libreadline support (no interactive CLI)])], [],
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+ [with_libreadline=yes])
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+AS_IF([test "x$with_libreadline" != xno], [
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+AC_CHECK_LIB([readline],[readline], , AC_MSG_ERROR([No suitable version of libreadline found]))
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+])
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+AC_SUBST(with_libreadline)
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+
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# Checks for header files.
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AC_HEADER_STDC
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--- a/src/Makefile.in
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+++ b/src/Makefile.in
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@@ -3,7 +3,9 @@ PROGRAMS += nft
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nft-destdir := @sbindir@
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nft-obj += main.o
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+ifeq (@with_libreadline@,yes)
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nft-obj += cli.o
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+endif
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nft-obj += rule.o
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nft-obj += statement.o
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nft-obj += datatype.o
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--- a/src/main.c
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+++ b/src/main.c
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@@ -335,8 +335,14 @@ int main(int argc, char * const *argv)
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if (scanner_read_file(scanner, filename, &internal_location) < 0)
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goto out;
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} else if (interactive) {
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+#ifdef HAVE_LIBREADLINE
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cli_init(&state);
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return 0;
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+#else
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+ fprintf(stderr, "%s: interactive CLI not supported in this build\n",
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+ argv[0]);
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+ exit(NFT_EXIT_FAILURE);
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+#endif
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} else {
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fprintf(stderr, "%s: no command specified\n", argv[0]);
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exit(NFT_EXIT_FAILURE);
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