1 2AC_INIT([iptables], [1.8.7]) 3 4# See libtool.info "Libtool's versioning system" 5libxtables_vcurrent=16 6libxtables_vage=4 7 8AC_CONFIG_AUX_DIR([build-aux]) 9AC_CONFIG_HEADERS([config.h]) 10AC_CONFIG_MACRO_DIR([m4]) 11AC_PROG_INSTALL 12AM_INIT_AUTOMAKE([-Wall]) 13AC_PROG_CC 14AM_PROG_CC_C_O 15AC_DISABLE_STATIC 16m4_ifdef([AM_PROG_AR], [AM_PROG_AR]) 17AM_PROG_LIBTOOL 18 19AC_ARG_WITH([kernel], 20 AS_HELP_STRING([--with-kernel=PATH], 21 [Path to kernel source/build directory]), 22 [kbuilddir="$withval"; ksourcedir="$withval";]) 23AC_ARG_WITH([kbuild], 24 AS_HELP_STRING([--with-kbuild=PATH], 25 [Path to kernel build directory [[/lib/modules/CURRENT/build]]]), 26 [kbuilddir="$withval"]) 27AC_ARG_WITH([ksource], 28 AS_HELP_STRING([--with-ksource=PATH], 29 [Path to kernel source directory [[/lib/modules/CURRENT/source]]]), 30 [ksourcedir="$withval"]) 31AC_ARG_WITH([xtlibdir], 32 AS_HELP_STRING([--with-xtlibdir=PATH], 33 [Path where to install Xtables extensions [[LIBEXECDIR/xtables]]]), 34 [xtlibdir="$withval"], 35 [xtlibdir="${libdir}/xtables"]) 36AC_ARG_ENABLE([ipv4], 37 AS_HELP_STRING([--disable-ipv4], [Do not build iptables]), 38 [enable_ipv4="$enableval"], [enable_ipv4="yes"]) 39AC_ARG_ENABLE([ipv6], 40 AS_HELP_STRING([--disable-ipv6], [Do not build ip6tables]), 41 [enable_ipv6="$enableval"], [enable_ipv6="yes"]) 42AC_ARG_ENABLE([largefile], 43 AS_HELP_STRING([--disable-largefile], [Do not build largefile support]), 44 [enable_largefile="$enableval"], 45 [enable_largefile="yes"]) 46AS_IF([test "$enable_largefile" = "yes"], [largefile_cppflags='-D_LARGEFILE_SOURCE=1 -D_LARGE_FILES -D_FILE_OFFSET_BITS=64']) 47 48AC_ARG_ENABLE([devel], 49 AS_HELP_STRING([--enable-devel], 50 [Install Xtables development headers]), 51 [enable_devel="$enableval"], [enable_devel="yes"]) 52AC_ARG_ENABLE([libipq], 53 AS_HELP_STRING([--enable-libipq], [Build and install libipq]), 54 [enable_libipq="$enableval"], [enable_libipq="no"]) 55AC_ARG_ENABLE([bpf-compiler], 56 AS_HELP_STRING([--enable-bpf-compiler], [Build bpf compiler]), 57 [enable_bpfc="$enableval"], [enable_bpfc="no"]) 58AC_ARG_ENABLE([nfsynproxy], 59 AS_HELP_STRING([--enable-nfsynproxy], [Build SYNPROXY configuration tool]), 60 [enable_nfsynproxy="$enableval"], [enable_nfsynproxy="no"]) 61AC_ARG_WITH([pkgconfigdir], AS_HELP_STRING([--with-pkgconfigdir=PATH], 62 [Path to the pkgconfig directory [[LIBDIR/pkgconfig]]]), 63 [pkgconfigdir="$withval"], [pkgconfigdir='${libdir}/pkgconfig']) 64AC_ARG_ENABLE([nftables], 65 AS_HELP_STRING([--disable-nftables], [Do not build nftables compat]), 66 [enable_nftables="$enableval"], [enable_nftables="yes"]) 67AC_ARG_ENABLE([connlabel], 68 AS_HELP_STRING([--disable-connlabel], 69 [Do not build libnetfilter_conntrack]), 70 [enable_connlabel="$enableval"], [enable_connlabel="yes"]) 71AC_ARG_WITH([xt-lock-name], AS_HELP_STRING([--with-xt-lock-name=PATH], 72 [Path to the xtables lock [[/run/xtables.lock]]]), 73 [xt_lock_name="$withval"], 74 [xt_lock_name="/run/xtables.lock"]) 75 76AC_MSG_CHECKING([whether $LD knows -Wl,--no-undefined]) 77saved_LDFLAGS="$LDFLAGS"; 78LDFLAGS="-Wl,--no-undefined"; 79AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {}])], 80 [noundef_LDFLAGS="$LDFLAGS"; AC_MSG_RESULT([yes])], 81 [AC_MSG_RESULT([no])] 82) 83LDFLAGS="$saved_LDFLAGS"; 84 85blacklist_modules="" 86blacklist_x_modules="" 87blacklist_b_modules="" 88blacklist_a_modules="" 89blacklist_4_modules="" 90blacklist_6_modules="" 91 92AC_CHECK_HEADERS([linux/dccp.h linux/ip_vs.h linux/magic.h linux/proc_fs.h linux/bpf.h]) 93if test "$ac_cv_header_linux_dccp_h" != "yes"; then 94 blacklist_modules="$blacklist_modules dccp"; 95fi; 96if test "$ac_cv_header_linux_ip_vs_h" != "yes"; then 97 blacklist_modules="$blacklist_modules ipvs"; 98fi; 99 100AC_CHECK_SIZEOF([struct ip6_hdr], [], [#include <netinet/ip6.h>]) 101 102AM_CONDITIONAL([ENABLE_STATIC], [test "$enable_static" = "yes"]) 103AM_CONDITIONAL([ENABLE_SHARED], [test "$enable_shared" = "yes"]) 104AM_CONDITIONAL([ENABLE_IPV4], [test "$enable_ipv4" = "yes"]) 105AM_CONDITIONAL([ENABLE_IPV6], [test "$enable_ipv6" = "yes"]) 106AM_CONDITIONAL([ENABLE_LARGEFILE], [test "$enable_largefile" = "yes"]) 107AM_CONDITIONAL([ENABLE_DEVEL], [test "$enable_devel" = "yes"]) 108AM_CONDITIONAL([ENABLE_LIBIPQ], [test "$enable_libipq" = "yes"]) 109AM_CONDITIONAL([ENABLE_BPFC], [test "$enable_bpfc" = "yes"]) 110AM_CONDITIONAL([ENABLE_SYNCONF], [test "$enable_nfsynproxy" = "yes"]) 111AM_CONDITIONAL([ENABLE_NFTABLES], [test "$enable_nftables" = "yes"]) 112AM_CONDITIONAL([ENABLE_CONNLABEL], [test "$enable_connlabel" = "yes"]) 113 114if test "x$enable_bpfc" = "xyes" || test "x$enable_nfsynproxy" = "xyes"; then 115 AC_CHECK_LIB(pcap, pcap_compile,, AC_MSG_ERROR(missing libpcap library required by bpf compiler or nfsynproxy tool)) 116fi 117 118PKG_CHECK_MODULES([libnfnetlink], [libnfnetlink >= 1.0], 119 [nfnetlink=1], [nfnetlink=0]) 120AM_CONDITIONAL([HAVE_LIBNFNETLINK], [test "$nfnetlink" = 1]) 121 122if test "x$enable_nftables" = "xyes"; then 123 PKG_CHECK_MODULES([libmnl], [libmnl >= 1.0], [mnl=1], [mnl=0]) 124 125 if test "$mnl" = 0; 126 then 127 echo "*** Error: No suitable libmnl found. ***" 128 echo " Please install the 'libmnl' package" 129 echo " Or consider --disable-nftables to skip" 130 echo " iptables-compat over nftables support." 131 exit 1 132 fi 133 134 PKG_CHECK_MODULES([libnftnl], [libnftnl >= 1.1.6], [nftables=1], [nftables=0]) 135 136 if test "$nftables" = 0; 137 then 138 echo "*** Error: no suitable libnftnl found. ***" 139 echo " Please install the 'libnftnl' package" 140 echo " Or consider --disable-nftables to skip" 141 echo " iptables-compat over nftables support." 142 exit 1 143 fi 144fi 145 146AM_CONDITIONAL([HAVE_LIBMNL], [test "$mnl" = 1]) 147AM_CONDITIONAL([HAVE_LIBNFTNL], [test "$nftables" = 1]) 148 149if test "$nftables" != 1; then 150 blacklist_b_modules="$blacklist_b_modules limit mark nflog mangle" 151 blacklist_a_modules="$blacklist_a_modules mangle" 152fi 153 154if test "x$enable_connlabel" = "xyes"; then 155 PKG_CHECK_MODULES([libnetfilter_conntrack], 156 [libnetfilter_conntrack >= 1.0.6], 157 [nfconntrack=1], [nfconntrack=0]) 158 159 if test "$nfconntrack" -ne 1; then 160 blacklist_modules="$blacklist_modules connlabel"; 161 echo "WARNING: libnetfilter_conntrack not found, connlabel match will not be built"; 162 enable_connlabel="no"; 163 fi; 164else 165 blacklist_modules="$blacklist_modules connlabel"; 166fi; 167 168AM_CONDITIONAL([HAVE_LIBNETFILTER_CONNTRACK], [test "$nfconntrack" = 1]) 169 170AC_SUBST([blacklist_modules]) 171AC_SUBST([blacklist_x_modules]) 172AC_SUBST([blacklist_b_modules]) 173AC_SUBST([blacklist_a_modules]) 174AC_SUBST([blacklist_4_modules]) 175AC_SUBST([blacklist_6_modules]) 176 177regular_CFLAGS="-Wall -Waggregate-return -Wmissing-declarations \ 178 -Wmissing-prototypes -Wredundant-decls -Wshadow -Wstrict-prototypes \ 179 -Wlogical-op \ 180 -Winline -pipe"; 181regular_CPPFLAGS="${largefile_cppflags} -D_REENTRANT \ 182 -DXTABLES_LIBDIR=\\\"\${xtlibdir}\\\" -DXTABLES_INTERNAL"; 183kinclude_CPPFLAGS=""; 184if [[ -n "$kbuilddir" ]]; then 185 kinclude_CPPFLAGS="$kinclude_CPPFLAGS -I$kbuilddir/include/uapi -I$kbuilddir/include"; 186fi; 187if [[ -n "$ksourcedir" ]]; then 188 kinclude_CPPFLAGS="$kinclude_CPPFLAGS -I$ksourcedir/include/uapi -I$ksourcedir/include"; 189fi; 190pkgdatadir='${datadir}/xtables'; 191 192define([EXPAND_VARIABLE], 193[$2=[$]$1 194if test $prefix = 'NONE'; then 195 prefix="/usr/local" 196fi 197while true; do 198 case "[$]$2" in 199 *\[$]* ) eval "$2=[$]$2" ;; 200 *) break ;; 201 esac 202done 203eval "$2=[$]$2" 204])dnl EXPAND_VARIABLE 205 206AC_SUBST([regular_CFLAGS]) 207AC_SUBST([regular_CPPFLAGS]) 208AC_SUBST([noundef_LDFLAGS]) 209AC_SUBST([kinclude_CPPFLAGS]) 210AC_SUBST([kbuilddir]) 211AC_SUBST([ksourcedir]) 212AC_SUBST([xtlibdir]) 213AC_SUBST([pkgconfigdir]) 214AC_SUBST([pkgdatadir]) 215AC_SUBST([libxtables_vcurrent]) 216AC_SUBST([libxtables_vage]) 217libxtables_vmajor=$(($libxtables_vcurrent - $libxtables_vage)); 218AC_SUBST([libxtables_vmajor]) 219 220AC_DEFINE_UNQUOTED([XT_LOCK_NAME], "${xt_lock_name}", 221 [Location of the iptables lock file]) 222AC_SUBST([XT_LOCK_NAME], "${xt_lock_name}") 223 224AC_CONFIG_FILES([Makefile extensions/GNUmakefile include/Makefile 225 iptables/Makefile iptables/xtables.pc 226 iptables/iptables.8 iptables/iptables-extensions.8.tmpl 227 iptables/iptables-save.8 iptables/iptables-restore.8 228 iptables/iptables-apply.8 iptables/iptables-xml.1 229 libipq/Makefile libipq/libipq.pc 230 libiptc/Makefile libiptc/libiptc.pc 231 libiptc/libip4tc.pc libiptc/libip6tc.pc 232 libxtables/Makefile utils/Makefile 233 include/xtables-version.h 234 iptables/xtables-monitor.8 235 utils/nfnl_osf.8 236 utils/nfbpf_compile.8]) 237AC_OUTPUT 238 239 240EXPAND_VARIABLE(xtlibdir, e_xtlibdir) 241EXPAND_VARIABLE(pkgconfigdir, e_pkgconfigdir) 242 243echo " 244Iptables Configuration: 245 IPv4 support: ${enable_ipv4} 246 IPv6 support: ${enable_ipv6} 247 Devel support: ${enable_devel} 248 IPQ support: ${enable_libipq} 249 Large file support: ${enable_largefile} 250 BPF utils support: ${enable_bpfc} 251 nfsynproxy util support: ${enable_nfsynproxy} 252 nftables support: ${enable_nftables} 253 connlabel support: ${enable_connlabel} 254 255Build parameters: 256 Put plugins into executable (static): ${enable_static} 257 Support plugins via dlopen (shared): ${enable_shared} 258 Installation prefix (--prefix): ${prefix} 259 Xtables extension directory: ${e_xtlibdir} 260 Pkg-config directory: ${e_pkgconfigdir} 261 Xtables lock file: ${xt_lock_name}" 262 263if [[ -n "$ksourcedir" ]]; then 264 echo " Kernel source directory: ${ksourcedir}" 265fi; 266if [[ -n "$kbuilddir" ]]; then 267 echo " Kernel build directory: ${kbuilddir}" 268fi; 269 270echo " Host: ${host} 271 GCC binary: ${CC}" 272 273test x"$blacklist_modules" = "x" || echo " 274Iptables modules that will not be built: $blacklist_modules" 275