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executable file 174 lines (153 sloc) 3.544 kb
#! /bin/sh
# $Id: configure,v 1.4 2007/01/07 23:19:40 mjt Exp $
# autoconf-style configuration script
#
set -e
name=udns
if [ -f udns.h -a -f udns_resolver.c ] ; then :
else
echo "configure: error: sources not found at `pwd`" >&2
exit 1
fi
options="ipv6"
for opt in $options; do
eval enable_$opt=
done
if [ -f config.status ]; then
. ./config.status
fi
enable() {
opt=`echo "$1" | sed 's/^--[^-]*-//'`
case "$opt" in
ipv6|stats|master_dump|zlib|dso) ;;
master-dump) opt=master_dump ;;
*) echo "configure: unrecognized option \`$1'" >&2; exit 1;;
esac
eval enable_$opt=$2
}
while [ $# -gt 0 ]; do
case "$1" in
--disable-*|--without-*|--no-*) enable "$1" n;;
--enable-*|--with-*) enable "$1" y;;
--help | --hel | --he | --h | -help | -hel | -he | -h )
cat <<EOF
configure: configure $name package.
Usage: ./configure [options]
where options are:
--enable-option, --with-option --
enable the named option/feature
--disable-option, --without-option, --no-option --
disable the named option/feature
--help - print this help and exit
Optional features (all enabled by default if system supports a feature):
ipv6 - enable/disable IP version 6 (IPv6) support
EOF
exit 0
;;
*) echo "configure: unknown option \`$1'" >&2; exit 1 ;;
esac
shift
done
. ./configure.lib
ac_msg "configure"
ac_result "$name package"
ac_prog_c_compiler_v
ac_prog_ranlib_v
ac_ign ac_yesno "for getopt()" ac_have GETOPT ac_link <<EOF
#include <stdio.h>
extern int optind;
extern char *optarg;
extern int getopt(int, char **, char *);
int main(int argc, char **argv) {
getopt(argc, argv, "abc");
return optarg ? optind : 0;
}
EOF
ac_ign \
ac_yesno "for inet_pton() && inet_ntop()" \
ac_have INET_PTON_NTOP \
ac_link <<EOF
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
int main() {
char buf[64];
long x = 0;
inet_pton(AF_INET, &x, buf);
return inet_ntop(AF_INET, &x, buf, sizeof(buf));
}
EOF
if ac_yesno "for socklen_t" ac_compile <<EOF
#include <sys/types.h>
#include <sys/socket.h>
int foo() { socklen_t len; len = 0; return len; }
EOF
then :
else
ac_define socklen_t int
fi
if ac_library_find_v 'socket and connect' "" "-lsocket -lnsl" <<EOF
int main() { socket(); connect(); return 0; }
EOF
then :
else
ac_fatal "cannot find libraries needed for sockets"
fi
if [ n != "$enable_ipv6" ]; then
if ac_yesno "for IPv6" ac_have IPv6 ac_compile <<EOF
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
int main() {
struct sockaddr_in6 sa;
sa.sin6_family = AF_INET6;
return 0;
}
EOF
then :
elif [ "$enable_ipv6" ]; then
ac_fatal "IPv6 is requested but not available"
fi
fi # !disable_ipv6?
if ac_yesno "for poll()" ac_have POLL ac_link <<EOF
#include <sys/types.h>
#include <sys/poll.h>
int main() {
struct pollfd pfd[2];
return poll(pfd, 2, 10);
}
EOF
then :
else
ac_ign ac_yesno "for sys/select.h" ac_have SYS_SELECT_H ac_cpp <<EOF
#include <sys/types.h>
#include <sys/select.h>
EOF
fi
# HACK FIXME - use 32bit on Mac
os=`uname -s`;
if [ $os = "Darwin" ]; then
CFLAGS="$CFLAGS -m32"
fi
ac_config_h
ac_output Makefile
ac_msg "creating config.status"
rm -f config.status
{
echo "# automatically generated by configure to hold command-line options"
echo
found=
for opt in $options; do
eval val=\$enable_$opt
if [ -n "$val" ]; then
echo enable_$opt=$val
found=y
fi
done
if [ ! "$found" ]; then
echo "# (no options encountered)"
fi
} > config.status
ac_result ok
ac_result "all done."
exit 0
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