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- dnl
- dnl $Id: configure.in,v 1.18 2000/02/01 10:48:55 jpr5 Exp $
- dnl
-
- AC_INIT(ngrep.c)
-
- AC_CANONICAL_SYSTEM
-
- AC_PROG_CC
- AC_PREFIX(gcc)
-
-
- AC_HEADER_STDC
- AC_CHECK_HEADER(strings.h,,echo need strings header; exit)
- AC_CHECK_HEADER(netinet/if_ether.h,AC_DEFINE(HAVE_IF_ETHER_H,1),)
-
-
- AC_MSG_CHECKING(for a complete set of pcap headers)
- possible_dirs="/usr/include /usr/include/pcap \
- /usr/local/include /usr/local/include/pcap \
- /usr/share/include /usr/share/include/pcap"
- pcap_dir=""
-
- for dir in $possible_dirs ; do
- if test -d $dir -a -r "$dir/pcap.h" -a \
- -r "$dir/net/bpf.h" ; then
- if test -n "$pcap_dir" ; then
- echo
- echo; echo more than one set found in:
- echo $pcap_dir
- echo $dir
- echo; echo please wipe out all unused pcap installations
- exit
- else
- pcap_dir="$dir"
- fi
- fi
- done
-
- if test -z "$pcap_dir" ; then
- echo no; echo couldn\'t find a complete set of pcap headers
- exit
- else
- AC_SUBST(PCAP_INCLUDE)
- PCAP_INCLUDE="-I$pcap_dir"
- echo found $pcap_dir
-
- AC_MSG_CHECKING(for usable bpf.h)
- if test -n "`grep DLT_RAW $pcap_dir/net/bpf.h`" ; then
- echo yep
- else
-
- echo nope
- echo '***************************************************************'
- echo an important define is missing from the bpf.h I found. this
- echo probably means that your installation of pcap is outdated and
- echo needs upgrading. I\'ll go ahead and add the define for you but
- echo understand that matching certain types of packets may not
- echo function properly.
- echo '***************************************************************'
- sleep 2
-
- AC_DEFINE(DLT_RAW, 12)
-
- fi
- fi
-
-
-
- AC_C_CONST
- AC_TYPE_SIZE_T
- AC_TYPE_SIGNAL
- AC_FUNC_ALLOCA
-
-
- AC_DEFINE(_BSD_SOURCE)
- AC_DEFINE(__FAVOR_BSD)
-
- case "$target_os" in
-
- *linux*)
- AC_DEFINE(LINUX)
-
- AC_MSG_CHECKING(for a dumb udphdr declaration)
- AC_TRY_COMPILE(,
- #ifndef __FAVOR_BSD
- #define __FAVOR_BSD
- #endif
-
- #ifndef _BSD_SOURCE
- #define _BSD_SOURCE 1
- #endif
-
- #include <netinet/udp.h>
-
- struct udphdr foo;
- unsigned short bar = foo.uh_sport;
- ,
- echo nope,
- echo yep dumb; AC_DEFINE(HAVE_DUMB_UDPHDR))
-
- ;;
-
- *bsd*)
- AC_DEFINE(BSD)
-
- ;;
-
- *solaris*)
- AC_DEFINE(SOLARIS)
-
- AC_CHECK_LIB(socket, socket,,
- echo no socket in -lsocket\?; exit)
- AC_CHECK_LIB(nsl, gethostbyname,,
- echo no gethostbyname in -lnsl\?; exit)
-
- LIBS="$LIBS -lnsl -lsocket"
-
- AC_SUBST(EXTRA_LIBS)
- EXTRA_LIBS='-lnsl -lsocket'
-
- ;;
-
- *osf*)
- AC_DEFINE(OSF1)
- AC_DEFINE(__STDC__, 2)
-
- ;;
-
- *)
- AC_MSG_WARN(Your OS ($target_os) is not supported yet. Try\
- playing with the build host and target options.)
-
- ;;
-
- esac
-
-
- AC_CHECK_LIB(pcap, pcap_open_live,,echo need pcap lib; exit)
-
- AC_CHECK_LIB(pcap, pcap_restart, AC_DEFINE(PCAP_RESTART,pcap_restart),
- AC_CHECK_LIB(pcap, pcap_yyrestart, AC_DEFINE(PCAP_RESTART,pcap_yyrestart),
- AC_CHECK_LIB(pcap, yyrestart, AC_DEFINE(PCAP_RESTART,yyrestart),
- echo no yacc restart func found
- echo perhaps libpcap wasn\'t compiled with bison/flex\?
- exit)))
-
-
- AC_OUTPUT(Makefile)
-