configure.ac

大名鼎鼎的路由器源码。程序分ZEBRA、OSPFRIP等3个包。程序框架采用一个路由协议一个进程的方式

AC_CHECK_FUNCS(getaddrinfo, [have_getaddrinfo=yes], [have_getaddrinfo=no])

dnl ----------
dnl IPv6 check
dnl ----------
AC_MSG_CHECKING(whether does this OS have IPv6 stack)
if test "${enable_ipv6}" = "no"; then
  AC_MSG_RESULT(disabled)
else
dnl ----------
dnl INRIA IPv6
dnl ----------
if grep IPV6_INRIA_VERSION /usr/include/netinet/in.h >/dev/null 2>&1; then
   zebra_cv_ipv6=yes
   AC_DEFINE(HAVE_IPV6,,IPv6)
   AC_DEFINE(INRIA_IPV6,,Inria IPv6)
   RIPNGD="ripngd"
   OSPF6D="ospf6d"
   LIB_IPV6=""
   AC_MSG_RESULT(INRIA IPv6)
fi
dnl ---------
dnl KAME IPv6
dnl ---------
if grep WIDE /usr/include/netinet6/in6.h >/dev/null 2>&1; then
   zebra_cv_ipv6=yes
   AC_DEFINE(HAVE_IPV6,,IPv6)
   AC_DEFINE(KAME,,KAME IPv6)
   RIPNGD="ripngd"
   OSPF6D="ospf6d"
   if test -d /usr/local/v6/lib -a -f /usr/local/v6/lib/libinet6.a; then
      LIB_IPV6="-L/usr/local/v6/lib -linet6"
   fi
   AC_MSG_RESULT(KAME)
fi
dnl ---------
dnl NRL check
dnl ---------
if grep NRL /usr/include/netinet6/in6.h >/dev/null 2>&1; then
   zebra_cv_ipv6=yes
   AC_DEFINE(HAVE_IPV6,,IPv6)
   AC_DEFINE(NRL,,NRL)
   RIPNGD="ripngd"
   OSPF6D="ospf6d"
   if test x"$opsys" = x"bsdi";then
      AC_DEFINE(BSDI_NRL,,BSDI)
      AC_MSG_RESULT(BSDI_NRL)
   else
      AC_MSG_RESULT(NRL)
   fi
fi

dnl ----------
dnl Linux IPv6
dnl ----------
if test "${enable_ipv6}" = "yes"; then
   AC_EGREP_CPP(yes, [
   #include <linux/version.h>
   /* 2.1.128 or later */
   #if LINUX_VERSION_CODE >= 0x020180
   yes
   #endif],
   [zebra_cv_ipv6=yes; zebra_cv_linux_ipv6=yes;AC_MSG_RESULT(Linux IPv6)])
else
   if test x`ls /proc/net/ipv6_route 2>/dev/null` = x"/proc/net/ipv6_route"
   then
      zebra_cv_ipv6=yes
      zebra_cv_linux_ipv6=yes
      AC_MSG_RESULT(Linux IPv6)
   fi
fi

if test "$zebra_cv_linux_ipv6" = "yes";then
   AC_DEFINE(HAVE_IPV6)
   AC_MSG_CHECKING(for GNU libc 2.1)
   AC_EGREP_CPP(yes, [
#include <features.h>
#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1
  yes
#endif], [glibc=yes; AC_MSG_RESULT(yes)], AC_MSG_RESULT(no))
   AC_DEFINE(LINUX_IPV6,,Linux IPv6)   
   RIPNGD="ripngd"
   OSPF6D="ospf6d"
   if test "$glibc" != "yes"; then
      INCLUDES="-I/usr/inet6/include"
      if test x`ls /usr/inet6/lib/libinet6.a 2>/dev/null` != x;then
         LIB_IPV6="-L/usr/inet6/lib -linet6"
      fi
   fi
fi

dnl -----------------------
dnl Set IPv6 related values
dnl -----------------------
LIBS="$LIB_IPV6 $LIBS"
AC_SUBST(LIB_IPV6)

if test x"$RIPNGD" = x""; then
  AC_MSG_RESULT(IPv4 only)
fi
fi

dnl --------------------
dnl Daemon disable check
dnl --------------------
if test "${enable_zebra}" = "no";then
  ZEBRA=""
else
  ZEBRA="zebra"
fi

if test "${enable_bgpd}" = "no";then
  BGPD=""
else
  BGPD="bgpd"
fi

if test "${enable_ripd}" = "no";then
  RIPD=""
else
  RIPD="ripd"
fi

if test "${enable_ospfd}" = "no";then
  OSPFD=""
else
  OSPFD="ospfd"
fi

case "${enable_ripngd}" in
  "yes") RIPNGD="ripngd";;
  "no" ) RIPNGD="";;
  *    ) ;;
esac

case "${enable_ospf6d}" in
  "yes") OSPF6D="ospf6d";;
  "no" ) OSPF6D="";;
  *    ) ;;
esac

if test "${enable_bgp_announce}" = "no";then
  AC_DEFINE(DISABLE_BGP_ANNOUNCE,,Disable BGP installation to zebra)
fi

AC_SUBST(ZEBRA)
AC_SUBST(BGPD)
AC_SUBST(RIPD)
AC_SUBST(RIPNGD)
AC_SUBST(OSPFD)
AC_SUBST(OSPF6D)
AC_SUBST(VTYSH)
AC_SUBST(INCLUDES)
AC_SUBST(CURSES)
AC_CHECK_LIB(c, inet_ntop, [AC_DEFINE(HAVE_INET_NTOP,,inet_ntop)])
AC_CHECK_LIB(c, inet_pton, [AC_DEFINE(HAVE_INET_PTON,,inet_pton)])
AC_CHECK_LIB(crypt, crypt)
AC_CHECK_LIB(resolv, res_init)
AC_CHECK_LIB(m, main)

dnl ---------------------------------------------------
dnl BSD/OS 4.1 define inet_XtoY function as __inet_XtoY
dnl ---------------------------------------------------
AC_CHECK_FUNC(__inet_ntop, AC_DEFINE(HAVE_INET_NTOP))
AC_CHECK_FUNC(__inet_pton, AC_DEFINE(HAVE_INET_PTON))
AC_CHECK_FUNC(__inet_aton, AC_DEFINE(HAVE_INET_ATON))

dnl ---------------------------
dnl check system has GNU regexp
dnl ---------------------------
dnl AC_MSG_CHECKING(whether system has GNU regex)
AC_CHECK_LIB(c, regexec,
[AC_DEFINE(HAVE_GNU_REGEX,,GNU regexp library)
 LIB_REGEX=""],
[LIB_REGEX="regex.o"])
AC_SUBST(LIB_REGEX)

dnl ------------------
dnl check SNMP library
dnl ------------------
if test "${enable_snmp}" = "yes";then
dnl  AC_CHECK_LIB(snmp, asn_parse_int, HAVE_SNMP=yes)
  old_libs="${LIBS}"
  LIBS="-L/usr/local/lib"
  unset ac_cv_lib_snmp_asn_parse_int
  AC_CHECK_LIB(snmp, asn_parse_int, HAVE_SNMP=yes, )
  if test "${HAVE_SNMP}" = ""; then
    unset ac_cv_lib_snmp_asn_parse_int
    AC_CHECK_LIB(crypto, main, [NEED_CRYPTO=yes ], )
	if test "${NEED_CRYPTO}" = ""; then 
		AC_CHECK_LIB(snmp, asn_parse_int, [HAVE_SNMP=yes; NEED_CRYPTO=yes ],)
	else
	    AC_CHECK_LIB(snmp, asn_parse_int, [HAVE_SNMP=yes; NEED_CRYPTO=yes;LIBS="$LIBS -lcrypto" ],,"-lcrypto")
	fi
  fi
  LIBS="${old_libs}"

  if test "${HAVE_SNMP}" = ""; then
	old_libs="${LIBS}"
	LIBS="-L/usr/local/lib"
	AC_CHECK_LIB(snmp, asn_parse_int, HAVE_SNMP=yes)
	LIBS="${old_libs}"
  fi
  if test "${HAVE_SNMP}" = "yes"; then
    for ac_snmp in /usr/include/ucd-snmp/asn1.h /usr/local/include/ucd-snmp/asn1.h /dev/null
    do
      test -f "${ac_snmp}" && break
    done
    case ${ac_snmp} in
      /usr/include/ucd-snmp/*) 
                  AC_DEFINE(HAVE_SNMP,,SNMP)
                  CFLAGS="${CFLAGS} -I/usr/include/ucd-snmp"
    		  LIBS="${LIBS} -lsnmp"
                  ;;
      /usr/local/include/ucd-snmp/*) 
                  AC_DEFINE(HAVE_SNMP,,SNMP)
  	          CFLAGS="${CFLAGS} -I/usr/local/include/ucd-snmp"
  		  LIBS="${LIBS} -L/usr/local/lib -lsnmp"
                  ;;
    esac
    if test "${NEED_CRYPTO}" = "yes"; then
      LIBS="${LIBS} -lcrypto"
    fi
  fi
fi

dnl ----------------------------
dnl check sa_len of sockaddr
dnl ----------------------------
AC_MSG_CHECKING(whether struct sockaddr has a sa_len field)
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/socket.h>
],[static struct sockaddr ac_i;int ac_j = sizeof (ac_i.sa_len);],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SA_LEN,,sa_len)],
 AC_MSG_RESULT(no))

dnl ----------------------------
dnl check sin_len of sockaddr_in
dnl ----------------------------
AC_MSG_CHECKING(whether struct sockaddr_in has a sin_len field)
AC_TRY_COMPILE([#include <sys/types.h>
#include <netinet/in.h>
],[static struct sockaddr_in ac_i;int ac_j = sizeof (ac_i.sin_len);],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SIN_LEN,,sin_len)],
 AC_MSG_RESULT(no))

dnl ----------------------------
dnl check sun_len of sockaddr_un
dnl ----------------------------
AC_MSG_CHECKING(whether struct sockaddr_un has a sun_len field)
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/un.h>
],[static struct sockaddr_un ac_i;int ac_j = sizeof (ac_i.sun_len);],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SUN_LEN,,sun_len)],
 AC_MSG_RESULT(no))

dnl -----------------------------------
dnl check sin6_scope_id of sockaddr_in6
dnl -----------------------------------
if test "$zebra_cv_ipv6" = yes; then
  AC_MSG_CHECKING(whether struct sockaddr_in6 has a sin6_scope_id field)
  AC_TRY_COMPILE([#include <sys/types.h>
#include <netinet/in.h>
],[static struct sockaddr_in6 ac_i;int ac_j = sizeof (ac_i.sin6_scope_id);],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SIN6_SCOPE_ID,,scope id)],
 AC_MSG_RESULT(no))
fi

dnl ----------------------------
dnl check socklen_t exist or not
dnl ----------------------------
AC_MSG_CHECKING(whther socklen_t is defined)
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
],[socklen_t ac_x;],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SOCKLEN_T,,socklen_t)],
 AC_MSG_RESULT(no))

dnl ------------------------
dnl check struct sockaddr_dl
dnl ------------------------
AC_MSG_CHECKING(whether struct sockaddr_dl exist)
AC_EGREP_HEADER(sockaddr_dl,
net/if_dl.h,
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SOCKADDR_DL,,sockaddr_dl)],
 AC_MSG_RESULT(no))

dnl --------------------------
dnl check structure ifaliasreq
dnl --------------------------
AC_MSG_CHECKING(whether struct ifaliasreq exist)
AC_EGREP_HEADER(ifaliasreq,
net/if.h,
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_IFALIASREQ,,ifaliasreq)],
 AC_MSG_RESULT(no))

dnl ----------------------------
dnl check structure in6_aliasreq
dnl ----------------------------
AC_MSG_CHECKING(whether struct if6_aliasreq exist)
AC_EGREP_HEADER(in6_aliasreq,
netinet6/in6_var.h,
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_IN6_ALIASREQ,,in6_aliasreq)],
 AC_MSG_RESULT(no))

dnl ---------------------------
dnl check structure rt_addrinfo
dnl ---------------------------
AC_MSG_CHECKING(whether struct rt_addrinfo exist)
AC_EGREP_HEADER(rt_addrinfo,
net/route.h,
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_RT_ADDRINFO,,rt_addrinfo)],
 AC_MSG_RESULT(no))

dnl --------------------------
dnl check structure in_pktinfo
dnl --------------------------
AC_MSG_CHECKING(whether struct in_pktinfo exist)
AC_TRY_COMPILE([#include <netinet/in.h>
],[struct in_pktinfo ac_x;],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_INPKTINFO,,in_pktinfo)],
 AC_MSG_RESULT(no))

dnl --------------------------------------
dnl checking for getrusage struct and call
dnl --------------------------------------
AC_MSG_CHECKING(whether getrusage is available)
AC_TRY_COMPILE([#include <sys/resource.h>
],[struct rusage ac_x; getrusage (RUSAGE_SELF, &ac_x);],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_RUSAGE,,rusage)],
 AC_MSG_RESULT(no))

dnl -------------
dnl check version
dnl -------------
file="${srcdir}/lib/version.h"
VERSION=`sed -ne 's/^#.*ZEBRA_VERSION.*\"\([^\"]*\)\"$/\1/p' $file`
AC_SUBST(VERSION)

dnl ------------------------------
dnl set paths for process id files
dnl ------------------------------
AC_CACHE_CHECK(pid file directory,ac_piddir,
[for ZEBRA_PID_DIR in /var/run	dnl
                   /var/adm	dnl
                   /etc		dnl
                   /dev/null;
do
  test -d $ZEBRA_PID_DIR && break
done
ac_piddir=$ZEBRA_PID_DIR
if test $ZEBRA_PID_DIR = "/dev/null"; then
  echo "PID DIRECTORY NOT FOUND!"
fi])
AC_DEFINE_UNQUOTED(PATH_ZEBRA_PID, "$ac_piddir/zebra.pid",zebra PID)
AC_DEFINE_UNQUOTED(PATH_RIPD_PID, "$ac_piddir/ripd.pid",ripd PID)
AC_DEFINE_UNQUOTED(PATH_RIPNGD_PID, "$ac_piddir/ripngd.pid",ripngd PID)
AC_DEFINE_UNQUOTED(PATH_BGPD_PID, "$ac_piddir/bgpd.pid",bgpd PID)
AC_DEFINE_UNQUOTED(PATH_OSPFD_PID, "$ac_piddir/ospfd.pid",ospfd PID)
AC_DEFINE_UNQUOTED(PATH_OSPF6D_PID, "$ac_piddir/ospf6d.pid",ospf6d PID)


dnl ---------------------------
dnl Check htonl works correctly
dnl ---------------------------
AC_MSG_CHECKING(for working htonl)
AC_CACHE_VAL(ac_cv_htonl_works, [
AC_TRY_LINK([#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif],
[htonl (0);],
ac_cv_htonl_works=yes,
ac_cv_htonl_works=no)])
AC_MSG_RESULT($ac_cv_htonl_works)

AC_OUTPUT(Makefile lib/Makefile zebra/Makefile ripd/Makefile ripngd/Makefile bgpd/Makefile ospfd/Makefile ospf6d/Makefile vtysh/Makefile doc/Makefile)

echo "
zebra configuration
-------------------
zebra version           : ${VERSION}
host operationg system  : ${host_os}
source code location    : ${srcdir}
compiler                : ${CC}
compiler flags          : ${CFLAGS}
directory for pid files : ${ac_piddir}
"