#
INCLUDE=${1:-"$PWD/include"}
+# Output file which is input to Makefile
+CONFIG=config.mk
+
# 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)
+ command -v $1 >/dev/null 2>&1 && (echo "$3:=y" >> $CONFIG; echo "yes") || (echo "no"; return 1)
}
check_docs()
: ${PKG_CONFIG:=pkg-config}
: ${AR=ar}
: ${CC=gcc}
- echo "PKG_CONFIG:=${PKG_CONFIG}" >>Config
- echo "AR:=${AR}" >>Config
- echo "CC:=${CC}" >>Config
+ echo "PKG_CONFIG:=${PKG_CONFIG}" >>$CONFIG
+ echo "AR:=${AR}" >>$CONFIG
+ echo "CC:=${CC}" >>$CONFIG
}
check_atm()
$CC -I$INCLUDE -o $TMPDIR/atmtest $TMPDIR/atmtest.c -latm >/dev/null 2>&1
if [ $? -eq 0 ]
then
- echo "TC_CONFIG_ATM:=y" >>Config
+ echo "TC_CONFIG_ATM:=y" >>$CONFIG
echo yes
else
echo no
{
if ! ${PKG_CONFIG} xtables --exists
then
- echo "TC_CONFIG_NO_XT:=y" >>Config
+ echo "TC_CONFIG_NO_XT:=y" >>$CONFIG
fi
}
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 "TC_CONFIG_XT:=y" >>$CONFIG
echo "using xtables"
fi
rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
check_xt_old()
{
# bail if previous XT checks has already succeded.
- if grep -q TC_CONFIG_XT Config
+ if grep -q TC_CONFIG_XT $CONFIG
then
return
fi
$CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1
if [ $? -eq 0 ]
then
- echo "TC_CONFIG_XT_OLD:=y" >>Config
+ echo "TC_CONFIG_XT_OLD:=y" >>$CONFIG
echo "using old xtables (no need for xt-internal.h)"
fi
rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
check_xt_old_internal_h()
{
# bail if previous XT checks has already succeded.
- if grep -q TC_CONFIG_XT Config
+ if grep -q TC_CONFIG_XT $CONFIG
then
return
fi
if [ $? -eq 0 ]
then
echo "using old xtables with xt-internal.h"
- echo "TC_CONFIG_XT_OLD_H:=y" >>Config
+ echo "TC_CONFIG_XT_OLD_H:=y" >>$CONFIG
fi
rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
}
check_ipt()
{
- if ! grep TC_CONFIG_XT Config > /dev/null
+ if ! grep TC_CONFIG_XT $CONFIG > /dev/null
then
echo "using iptables"
fi
IPT_LIB_DIR=$(${PKG_CONFIG} --variable=xtlibdir xtables)
if [ -n "$IPT_LIB_DIR" ]; then
echo $IPT_LIB_DIR
- echo "IPT_LIB_DIR:=$IPT_LIB_DIR" >> Config
+ echo "IPT_LIB_DIR:=$IPT_LIB_DIR" >> $CONFIG
return
fi
for file in $dir/{xtables,iptables}/lib*t_*so ; do
if [ -f $file ]; then
echo ${file%/*}
- echo "IPT_LIB_DIR:=${file%/*}" >> Config
+ echo "IPT_LIB_DIR:=${file%/*}" >> $CONFIG
return
fi
done
$CC -I$INCLUDE -o $TMPDIR/setnstest $TMPDIR/setnstest.c >/dev/null 2>&1
if [ $? -eq 0 ]
then
- echo "IP_CONFIG_SETNS:=y" >>Config
+ echo "IP_CONFIG_SETNS:=y" >>$CONFIG
echo "yes"
+ echo "CFLAGS += -DHAVE_SETNS" >>$CONFIG
else
echo "no"
fi
if $CC -I$INCLUDE -o $TMPDIR/ipsettest $TMPDIR/ipsettest.c >/dev/null 2>&1
then
- echo "TC_CONFIG_IPSET:=y" >>Config
+ echo "TC_CONFIG_IPSET:=y" >>$CONFIG
echo "yes"
else
echo "no"
check_elf()
{
- cat >$TMPDIR/elftest.c <<EOF
-#include <libelf.h>
-#include <gelf.h>
-int main(void)
-{
- Elf_Scn *scn;
- GElf_Shdr shdr;
- return elf_version(EV_CURRENT);
-}
-EOF
-
- if $CC -I$INCLUDE -o $TMPDIR/elftest $TMPDIR/elftest.c -lelf >/dev/null 2>&1
+ if ${PKG_CONFIG} libelf --exists
then
- echo "HAVE_ELF:=y" >>Config
+ echo "HAVE_ELF:=y" >>$CONFIG
echo "yes"
+
+ echo 'CFLAGS += -DHAVE_ELF' `${PKG_CONFIG} libelf --cflags` >> $CONFIG
+ echo 'LDLIBS += ' `${PKG_CONFIG} libelf --libs` >>$CONFIG
else
echo "no"
fi
- rm -f $TMPDIR/elftest.c $TMPDIR/elftest
}
check_selinux()
{
if ${PKG_CONFIG} libselinux --exists
then
- echo "HAVE_SELINUX:=y" >>Config
+ echo "HAVE_SELINUX:=y" >>$CONFIG
echo "yes"
+
+ echo 'LDLIBS +=' `${PKG_CONFIG} --libs libselinux` >>$CONFIG
+ echo 'CFLAGS += -DHAVE_SELINUX' `${PKG_CONFIG} --cflags libselinux` >>$CONFIG
else
echo "no"
fi
{
if ${PKG_CONFIG} libmnl --exists
then
- echo "HAVE_MNL:=y" >>Config
+ echo "HAVE_MNL:=y" >>$CONFIG
echo "yes"
+
+ echo 'CFLAGS += -DHAVE_LIBMNL' `${PKG_CONFIG} libmnl --cflags` >>$CONFIG
+ echo 'LDLIBS +=' `${PKG_CONFIG} libmnl --libs` >> $CONFIG
else
echo "no"
fi
$CC -I$INCLUDE -o $TMPDIR/dbtest $TMPDIR/dbtest.c -ldb >/dev/null 2>&1
if [ $? -eq 0 ]
then
- echo "HAVE_BERKELEY_DB:=y" >>Config
+ echo "HAVE_BERKELEY_DB:=y" >>$CONFIG
echo "yes"
else
echo "no"
rm -f $TMPDIR/dbtest.c $TMPDIR/dbtest
}
+check_strlcpy()
+{
+ cat >$TMPDIR/strtest.c <<EOF
+#include <string.h>
+int main(int argc, char **argv) {
+ char dst[10];
+ strlcpy(dst, "test", sizeof(dst));
+ return 0;
+}
+EOF
+ $CC -I$INCLUDE -o $TMPDIR/strtest $TMPDIR/strtest.c >/dev/null 2>&1
+ if [ $? -eq 0 ]
+ then
+ echo "no"
+ else
+ echo 'CFLAGS += -DNEED_STRLCPY' >>$CONFIG
+ echo "yes"
+ fi
+ rm -f $TMPDIR/strtest.c $TMPDIR/strtest
+}
+
quiet_config()
{
cat <<EOF
EOF
}
-echo "# Generated config based on" $INCLUDE >Config
-quiet_config >> Config
+echo "# Generated config based on" $INCLUDE >$CONFIG
+quiet_config >> $CONFIG
check_toolchain
check_atm
check_xtables
-if ! grep -q TC_CONFIG_NO_XT Config
+if ! grep -q TC_CONFIG_NO_XT $CONFIG
then
echo -n " IPT "
check_xt
fi
echo
-if ! grep -q TC_CONFIG_NO_XT Config
+if ! grep -q TC_CONFIG_NO_XT $CONFIG
then
echo -n "iptables modules directory: "
check_ipt_lib_dir
echo -n "Berkeley DB: "
check_berkeley_db
+echo -n "need for strlcpy: "
+check_strlcpy
+
echo
echo -n "docs:"
check_docs
echo
-echo >> Config
-echo "%.o: %.c" >> Config
-echo ' $(QUIET_CC)$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $<' >> Config
+echo >> $CONFIG
+echo "%.o: %.c" >> $CONFIG
+echo ' $(QUIET_CC)$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $<' >> $CONFIG