#! /bin/bash
-# This is not an autconf generated configure
+# This is not an autoconf generated configure
#
INCLUDE=${1:-"$PWD/include"}
+# Make a temp directory in build tree.
+TMPDIR=$(mktemp -d config.XXXXXX)
+trap 'status=$?; rm -rf $TMPDIR; exit $status' EXIT HUP INT QUIT TERM
+
+check_prog()
+{
+ echo -n "$2"
+ command -v $1 >/dev/null 2>&1 && (echo "$3:=y" >> Config; echo "yes") || (echo "no"; return 1)
+}
+
+check_docs()
+{
+ if check_prog latex " latex: " HAVE_LATEX; then
+ check_prog pdflatex " pdflatex: " HAVE_PDFLATEX || echo " WARNING: no PDF docs can be built from LaTeX files"
+ check_prog sgml2latex " sgml2latex: " HAVE_SGML2LATEX || echo " WARNING: no LaTeX files can be build from SGML files"
+ else
+ echo " WARNING: no docs can be built from LaTeX files"
+ fi
+
+ check_prog sgml2html " sgml2html: " HAVE_SGML2HTML || echo " WARNING: no HTML docs can be built from SGML"
+}
+
+check_toolchain()
+{
+ : ${PKG_CONFIG:=pkg-config}
+ : ${AR=ar}
+ : ${CC=gcc}
+ echo "PKG_CONFIG:=${PKG_CONFIG}" >>Config
+ echo "AR:=${AR}" >>Config
+ echo "CC:=${CC}" >>Config
+}
+
check_atm()
{
-cat >/tmp/atmtest.c <<EOF
+ cat >$TMPDIR/atmtest.c <<EOF
#include <atm.h>
int main(int argc, char **argv) {
struct atm_qos qos;
return 0;
}
EOF
-gcc -I$INCLUDE -o /tmp/atmtest /tmp/atmtest.c -latm >/dev/null 2>&1
-if [ $? -eq 0 ]
-then
- echo "TC_CONFIG_ATM:=y" >>Config
- echo yes
-else
- echo no
-fi
-rm -f /tmp/atmtest.c /tmp/atmtest
+
+ $CC -I$INCLUDE -o $TMPDIR/atmtest $TMPDIR/atmtest.c -latm >/dev/null 2>&1
+ if [ $? -eq 0 ]
+ then
+ echo "TC_CONFIG_ATM:=y" >>Config
+ echo yes
+ else
+ echo no
+ fi
+ rm -f $TMPDIR/atmtest.c $TMPDIR/atmtest
+}
+
+check_xtables()
+{
+ if ! ${PKG_CONFIG} xtables --exists
+ then
+ echo "TC_CONFIG_NO_XT:=y" >>Config
+ fi
}
check_xt()
{
-#check if we have xtables from iptables >= 1.4.5.
-cat >/tmp/ipttest.c <<EOF
+ #check if we have xtables from iptables >= 1.4.5.
+ cat >$TMPDIR/ipttest.c <<EOF
#include <xtables.h>
#include <linux/netfilter.h>
static struct xtables_globals test_globals = {
xtables_init_all(&test_globals, NFPROTO_IPV4);
return 0;
}
-
EOF
-if gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl -lxtables >/dev/null 2>&1
-then
+ if $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL \
+ $(${PKG_CONFIG} xtables --cflags --libs) -ldl >/dev/null 2>&1
+ then
echo "TC_CONFIG_XT:=y" >>Config
echo "using xtables"
-fi
-rm -f /tmp/ipttest.c /tmp/ipttest
+ fi
+ rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
}
check_xt_old()
{
-# bail if previous XT checks has already succeded.
-if grep TC_CONFIG_XT Config > /dev/null
-then
+ # bail if previous XT checks has already succeded.
+ if grep -q TC_CONFIG_XT Config
+ then
return
-fi
+ fi
-#check if we dont need our internal header ..
-cat >/tmp/ipttest.c <<EOF
+ #check if we dont need our internal header ..
+ cat >$TMPDIR/ipttest.c <<EOF
#include <xtables.h>
char *lib_dir;
unsigned int global_option_offset = 0;
}
EOF
-gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl >/dev/null 2>&1
-if [ $? -eq 0 ]
-then
+ $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1
+ if [ $? -eq 0 ]
+ then
echo "TC_CONFIG_XT_OLD:=y" >>Config
echo "using old xtables (no need for xt-internal.h)"
-fi
-rm -f /tmp/ipttest.c /tmp/ipttest
+ fi
+ rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
}
check_xt_old_internal_h()
{
-# bail if previous XT checks has already succeded.
-if grep TC_CONFIG_XT Config > /dev/null
-then
+ # bail if previous XT checks has already succeded.
+ if grep -q TC_CONFIG_XT Config
+ then
return
-fi
+ fi
-#check if we need our own internal.h
-cat >/tmp/ipttest.c <<EOF
+ #check if we need our own internal.h
+ cat >$TMPDIR/ipttest.c <<EOF
#include <xtables.h>
#include "xt-internal.h"
char *lib_dir;
}
EOF
-gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl >/dev/null 2>&1
+ $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1
-if [ $? -eq 0 ]
-then
- echo "using old xtables with xt-internal.h"
- echo "TC_CONFIG_XT_OLD_H:=y" >>Config
-fi
-rm -f /tmp/ipttest.c /tmp/ipttest
+ if [ $? -eq 0 ]
+ then
+ echo "using old xtables with xt-internal.h"
+ echo "TC_CONFIG_XT_OLD_H:=y" >>Config
+ fi
+ rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
}
check_ipt()
check_ipt_lib_dir()
{
- IPT_LIB_DIR=""
+ IPT_LIB_DIR=$(${PKG_CONFIG} --variable=xtlibdir xtables)
+ if [ -n "$IPT_LIB_DIR" ]; then
+ echo $IPT_LIB_DIR
+ echo "IPT_LIB_DIR:=$IPT_LIB_DIR" >> Config
+ return
+ fi
+
for dir in /lib /usr/lib /usr/local/lib
do
for file in $dir/{xtables,iptables}/lib*t_*so ; do
check_setns()
{
-cat >/tmp/setnstest.c <<EOF
+ cat >$TMPDIR/setnstest.c <<EOF
#include <sched.h>
-int main(int argc, char **argv)
+int main(int argc, char **argv)
{
(void)setns(0,0);
return 0;
}
EOF
-gcc -I$INCLUDE -o /tmp/setnstest /tmp/setnstest.c >/dev/null 2>&1
-if [ $? -eq 0 ]
-then
+ $CC -I$INCLUDE -o $TMPDIR/setnstest $TMPDIR/setnstest.c >/dev/null 2>&1
+ if [ $? -eq 0 ]
+ then
echo "IP_CONFIG_SETNS:=y" >>Config
echo "yes"
-else
+ else
echo "no"
-fi
-rm -f /tmp/setnstest.c /tmp/setnstest
+ fi
+ rm -f $TMPDIR/setnstest.c $TMPDIR/setnstest
+}
+
+check_ipset()
+{
+ cat >$TMPDIR/ipsettest.c <<EOF
+#include <linux/netfilter/ipset/ip_set.h>
+#ifndef IP_SET_INVALID
+#define IPSET_DIM_MAX 3
+typedef unsigned short ip_set_id_t;
+#endif
+#include <linux/netfilter/xt_set.h>
+
+struct xt_set_info info;
+#if IPSET_PROTOCOL == 6
+int main(void)
+{
+ return IPSET_MAXNAMELEN;
+}
+#else
+#error unknown ipset version
+#endif
+EOF
+
+ if $CC -I$INCLUDE -o $TMPDIR/ipsettest $TMPDIR/ipsettest.c >/dev/null 2>&1
+ then
+ echo "TC_CONFIG_IPSET:=y" >>Config
+ echo "yes"
+ else
+ echo "no"
+ fi
+ rm -f $TMPDIR/ipsettest.c $TMPDIR/ipsettest
+}
+
+check_elf()
+{
+ cat >$TMPDIR/elftest.c <<EOF
+#include <libelf.h>
+#include <gelf.h>
+int main(void)
+{
+ Elf_Scn *scn __attribute__((__unused__));
+ GElf_Shdr shdr __attribute__((__unused__));;
+ return elf_version(EV_CURRENT);
+}
+EOF
+
+ if $CC -I$INCLUDE -o $TMPDIR/elftest $TMPDIR/elftest.c -lelf >/dev/null 2>&1
+ then
+ echo "HAVE_ELF:=y" >>Config
+ echo "yes"
+ else
+ echo "no"
+ fi
+ rm -f $TMPDIR/elftest.c $TMPDIR/elftest
+}
+
+check_selinux()
+# SELinux is a compile time option in the ss utility
+{
+ if ${PKG_CONFIG} libselinux --exists
+ then
+ echo "HAVE_SELINUX:=y" >>Config
+ echo "yes"
+ else
+ echo "no"
+ fi
+}
+
+check_mnl()
+{
+ if ${PKG_CONFIG} libmnl --exists
+ then
+ echo "HAVE_MNL:=y" >>Config
+ echo "yes"
+ else
+ echo "no"
+ fi
+}
+
+check_berkeley_db()
+{
+ cat >$TMPDIR/dbtest.c <<EOF
+#include <fcntl.h>
+#include <stdlib.h>
+#include <db_185.h>
+int main(int argc, char **argv) {
+ dbopen("/tmp/xxx_test_db.db", O_CREAT|O_RDWR, 0644, DB_HASH, NULL);
+ return 0;
+}
+EOF
+ $CC -I$INCLUDE -o $TMPDIR/dbtest $TMPDIR/dbtest.c -ldb >/dev/null 2>&1
+ if [ $? -eq 0 ]
+ then
+ echo "HAVE_BERKELEY_DB:=y" >>Config
+ echo "yes"
+ else
+ echo "no"
+ fi
+ rm -f $TMPDIR/dbtest.c $TMPDIR/dbtest
+}
+
+quiet_config()
+{
+ cat <<EOF
+# user can control verbosity similar to kernel builds (e.g., V=1)
+ifeq ("\$(origin V)", "command line")
+ VERBOSE = \$(V)
+endif
+ifndef VERBOSE
+ VERBOSE = 0
+endif
+ifeq (\$(VERBOSE),1)
+ Q =
+else
+ Q = @
+endif
+
+ifeq (\$(VERBOSE), 0)
+ QUIET_CC = @echo ' CC '\$@;
+ QUIET_AR = @echo ' AR '\$@;
+ QUIET_LINK = @echo ' LINK '\$@;
+ QUIET_YACC = @echo ' YACC '\$@;
+ QUIET_LEX = @echo ' LEX '\$@;
+endif
+EOF
}
echo "# Generated config based on" $INCLUDE >Config
+quiet_config >> Config
+
+check_toolchain
echo "TC schedulers"
echo -n " ATM "
check_atm
-echo -n " IPT "
-check_xt
-check_xt_old
-check_xt_old_internal_h
-check_ipt
+check_xtables
+if ! grep -q TC_CONFIG_NO_XT Config
+then
+ echo -n " IPT "
+ check_xt
+ check_xt_old
+ check_xt_old_internal_h
+ check_ipt
+
+ echo -n " IPSET "
+ check_ipset
+fi
-echo -n "iptables modules directory: "
-check_ipt_lib_dir
+echo
+if ! grep -q TC_CONFIG_NO_XT Config
+then
+ echo -n "iptables modules directory: "
+ check_ipt_lib_dir
+fi
echo -n "libc has setns: "
check_setns
+
+echo -n "SELinux support: "
+check_selinux
+
+echo -n "ELF support: "
+check_elf
+
+echo -n "libmnl support: "
+check_mnl
+
+echo -n "Berkeley DB: "
+check_berkeley_db
+
+echo
+echo -n "docs:"
+check_docs
+echo
+
+echo >> Config
+echo "%.o: %.c" >> Config
+echo ' $(QUIET_CC)$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $<' >> Config
projects / mirror_iproute2.git / blobdiff