dnl Process this file with autoconf to produce a configure script.
AC_INIT(src/zabbix_sucker/zabbix_sucker.c)
AM_INIT_AUTOMAKE(PACKAGE,all)

AM_CONFIG_HEADER(include/config.h)
AC_PROG_MAKE_SET

dnl Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL

dnl Checks for libraries.
AC_CHECK_LIB(crypto, main)
AC_CHECK_LIB(snmp, main, "-lcrypto")
AC_CHECK_LIB(socket, main)
AC_CHECK_LIB(nsl, main)

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(stdio.h stdlib.h string.h unistd.h netdb.h signal.h \
  syslog.h time.h errno.h sys/types.h sys/stat.h netinet/in.h \
  sys/socket.h ucd-snmp/ucd-snmp-config.h ucd-snmp/system.h \
  ucd-snmp/ucd-snmp-includes.h dirent.h \
  mtent.h fcntl.h sys/param.h sys/mount.h arpa/inet.h \
  sys/vfs.h sys/pstat.h sys/sysinfo.h sys/statvfs.h \
  sys/socket.h sys/loadavg.h netinet/in.h arpa/inet.h \
  sys/swap.h sys/vmmeter.h strings.h sys/sysctl.h vm/vm_param.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_PID_T

dnl Check for /proc filesystem
AC_MSG_CHECKING(for /proc filesystem)
if test -d /proc; then
	AC_MSG_RESULT(yes)
	AC_DEFINE(HAVE_PROC)
else
	AC_MSG_RESULT(no)
fi

dnl Check for file /proc/1/status
AC_MSG_CHECKING(for file /proc/1/status)
if test -r /proc/1/status; then
	AC_MSG_RESULT(yes)
	AC_DEFINE(HAVE_PROC_1_STATUS)
else
	AC_MSG_RESULT(no)
fi

dnl Check for file /proc/loadavg
AC_MSG_CHECKING(for file /proc/loadavg)
if test -r /proc/loadavg; then
	AC_MSG_RESULT(yes)
	AC_DEFINE(HAVE_PROC_LOADAVG)
else
	AC_MSG_RESULT(no)
fi


dnl Check for freeswap in struct sysinfo
AC_MSG_CHECKING(for freeswap in struct sysinfo)
AC_TRY_COMPILE([#include <sys/sysinfo.h>],
[struct sysinfo sysinfo;
sysinfo.freeswap=0;
],
AC_DEFINE(HAVE_SYSINFO_FREESWAP)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check for vmtotal in sys/vmmeter.h
AC_MSG_CHECKING(for vmtotal in struct sys/vmmeter.h)
AC_TRY_COMPILE(
[
#include <stdlib.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <vm/vm_param.h>
#include <sys/vmmeter.h>
],
[	int mib[2],len;
	struct vmtotal v;

	len=sizeof(struct vmtotal);
	mib[0]=CTL_VM;
	mib[1]=VM_METER;

	sysctl(mib,2,&v,&len,NULL,0);
],
AC_DEFINE(HAVE_SYS_VMMETER_VMTOTAL)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check for struct swaptable in sys/swap.h
AC_MSG_CHECKING(for struct swaptable in sys/swap.h)
AC_TRY_COMPILE(
[
#include <stdlib.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/swap.h>
],
[
    register int cnt, i;
    register int t, f;
    struct swaptable *swt;
    struct swapent *ste;
    static char path[256];

    /* get total number of swap entries */
    cnt = swapctl(SC_GETNSWP, 0);

    /* allocate enough space to hold count + n swapents */
    swt = (struct swaptable *)malloc(sizeof(int) +
             cnt * sizeof(struct swapent));
    if (swt == NULL)
    {
  *total = 0;
  *fr = 0;
  return;
    }
    swt->swt_n = cnt;

    /* fill in ste_path pointers: we don't care about the paths, so we
point
       them all to the same buffer */
    ste = &(swt->swt_ent[0]);
    i = cnt;
    while (--i >= 0)
    {
  ste++->ste_path = path;
    }

    /* grab all swap info */
    swapctl(SC_LIST, swt);

    /* walk thru the structs and sum up the fields */
    t = f = 0;
    ste = &(swt->swt_ent[0]);
    i = cnt;
    while (--i >= 0)
    {
  /* dont count slots being deleted */
  if (!(ste->ste_flags & ST_INDEL) &&
      !(ste->ste_flags & ST_DOINGDEL))
  {
      t += ste->ste_pages;
      f += ste->ste_free;
  } ste++;
    }

    /* fill in the results */
    *total = t;
    *fr = f;
    free(swt);

],
AC_DEFINE(HAVE_SYS_SWAP_SWAPTABLE)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check for totalswap in struct sysinfo
AC_MSG_CHECKING(for totalswap in struct sysinfo)
AC_TRY_COMPILE([#include <sys/sysinfo.h>],
[struct sysinfo sysinfo;
sysinfo.totalswap=0;
],
AC_DEFINE(HAVE_SYSINFO_TOTALSWAP)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check for function setproctitle()
AC_MSG_CHECKING(for function setproctitle())
AC_TRY_COMPILE(
[
	#include <sys/types.h>
	#include <unistd.h>
],
[
	setproctitle("Test %d", 1);
],
AC_DEFINE(HAVE_FUNCTION_SETPROCTITLE)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check for totalram in struct sysinfo
AC_MSG_CHECKING(for totalram in struct sysinfo)
AC_TRY_COMPILE([#include <sys/sysinfo.h>],
[struct sysinfo sysinfo;
sysinfo.totalram=0;
],
AC_DEFINE(HAVE_SYSINFO_TOTALRAM)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check for totalram in struct sysinfo
AC_MSG_CHECKING(for totalram in struct sysinfo)
AC_TRY_COMPILE([#include <sys/sysinfo.h>],
[struct sysinfo sysinfo;
sysinfo.totalram=0;
],
AC_DEFINE(HAVE_SYSINFO_TOTALRAM)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check for sharedram in struct sysinfo
AC_MSG_CHECKING(for sharedram in struct sysinfo)
AC_TRY_COMPILE([#include <sys/sysinfo.h>],
[struct sysinfo sysinfo;
sysinfo.sharedram=0;
],
AC_DEFINE(HAVE_SYSINFO_SHAREDRAM)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check for bufferram in struct sysinfo
AC_MSG_CHECKING(for bufferram in struct sysinfo)
AC_TRY_COMPILE([#include <sys/sysinfo.h>],
[struct sysinfo sysinfo;
sysinfo.bufferram=0;
],
AC_DEFINE(HAVE_SYSINFO_BUFFERRAM)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check for freeram in struct sysinfo
AC_MSG_CHECKING(for freeram in struct sysinfo)
AC_TRY_COMPILE([#include <sys/sysinfo.h>],
[struct sysinfo sysinfo;
sysinfo.freeram=0;
],
AC_DEFINE(HAVE_SYSINFO_FREERAM)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check for uptime in struct sysinfo
AC_MSG_CHECKING(for uptime in struct sysinfo)
AC_TRY_COMPILE([#include <sys/sysinfo.h>],
[struct sysinfo sysinfo;
sysinfo.uptime=0;
],
AC_DEFINE(HAVE_SYSINFO_UPTIME)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check for procs in struct sysinfo
AC_MSG_CHECKING(for procs in struct sysinfo)
AC_TRY_COMPILE([#include <sys/sysinfo.h>],
[struct sysinfo sysinfo;
sysinfo.procs=0;
],
AC_DEFINE(HAVE_SYSINFO_PROCS)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Checks for library functions.
AC_TYPE_SIGNAL
AC_FUNC_GETLOADAVG
AC_CHECK_FUNCS(socket strtod)


AC_MSG_CHECKING(for MySQL support)
AC_ARG_WITH(mysql,
[
What DBMS do you want to use (please select only one):
  --with-mysql[=DIR]      Include MySQL support.  DIR is the MySQL base
                          install directory, default is to search through
                          a number of common places for the MySQL files.],
[
  if test "$withval" != "no"; then
  	if test "$withval" = "yes"; then
		if test -f /usr/local/mysql/include/mysql/mysql.h; then
			MYSQL_INCDIR=/usr/local/mysql/include/mysql
			MYSQL_LIBDIR=/usr/local/mysql/lib/mysql
		elif test -f /usr/include/mysql/mysql.h; then
			MYSQL_INCDIR=/usr/include/mysql
			MYSQL_LIBDIR=/usr/lib/mysql
		elif test -f /usr/include/mysql.h; then
			MYSQL_INCDIR=/usr/include
			MYSQL_LIBDIR=/usr/lib
		elif test -f /usr/local/include/mysql/mysql.h; then
			MYSQL_INCDIR=/usr/local/include/mysql
			MYSQL_LIBDIR=/usr/local/lib/mysql
		elif test -f /usr/local/include/mysql.h; then
			MYSQL_INCDIR=/usr/local/include
			MYSQL_LIBDIR=/usr/local/lib
		else
    		AC_MSG_RESULT(no)
    		AC_MSG_ERROR(Invalid MySQL directory - unable to find mysql.h)
		fi
   	else
		if test -f $withval/include/mysql/mysql.h; then
   			MYSQL_INCDIR=$withval/include/mysql
   			MYSQL_LIBDIR=$withval/lib/mysql
		elif test -f $withval/include/mysql.h; then
   			MYSQL_INCDIR=$withval/include
   			MYSQL_LIBDIR=$withval/lib
		else
    		AC_MSG_RESULT(no)
    		AC_MSG_ERROR(Invalid MySQL directory - unable to find mysql.h under $withval)
		fi
   	fi
    MYSQL_INCLUDE=-I$MYSQL_INCDIR
    MYSQL_LFLAGS="-L$MYSQL_LIBDIR -lmysqlclient"

    AC_DEFINE(HAVE_MYSQL)
    AC_MSG_RESULT(yes)
    have_db=yes
    dnl MySQL requires -lm sometime
    AC_CHECK_FUNC(floor, , AC_CHECK_LIB(m, floor, MYSQL_LFLAGS="$MYSQL_LFLAGS -lm"))
    dnl MySQL 3.23 requires -lz sometime
    AC_CHECK_FUNC(compress, , AC_CHECK_LIB(z, compress, MYSQL_LFLAGS="$MYSQL_LFLAGS -lz"))

  else
  	AC_MSG_RESULT(no)
  fi
],[
  AC_MSG_RESULT(no)
])
AC_SUBST(MYSQL_LFLAGS)
AC_SUBST(MYSQL_INCLUDE)


AC_MSG_CHECKING(for PostgreSQL support)
AC_ARG_WITH(pgsql,
[  --with-pgsql[=DIR]      Include PostgreSQL support.  DIR is the PostgreSQL
                          base install directory, defaults to /usr/local/pgsql.],
[
  if test "$withval" != "no"; then
      if test "$have_db" = "yes"; then
          AC_MSG_RESULT(error)
          AC_MSG_ERROR("You can configure for only one database.");
      fi
  	if test "$withval" = "yes"; then
		if test -f /usr/include/pgsql/libpq-fe.h; then
			PGSQL_INCDIR=/usr/include/pgsql
		elif test -f /usr/include/postgresql/libpq-fe.h; then
			PGSQL_INCDIR=/usr/include/postgresql
		elif test -f /usr/local/include/pgsql/libpq-fe.h; then
			PGSQL_INCDIR=/usr/local/include/pgsql
		else
			PGSQL_INCDIR=/usr/local/pgsql/include
		fi
		if test -f /usr/lib/libpq.a; then
			PGSQL_LIBDIR=/usr/lib
		elif test -f /usr/local/lib/libpq.a; then
			PGSQL_LIBDIR=/usr/local/lib
		else
			PGSQL_LIBDIR=/usr/local/pgsql/lib
		fi
   	else
   		PGSQL_INCDIR=$withval/include
   		test -d $withval/include/pgsql && PGSQL_INCDIR=$withval/include/pgsql
   		PGSQL_LIBDIR=$withval/lib
   		test -d $withval/lib/pgsql && PGSQL_LIBDIR=$withval/lib/pgsql
   	fi
    PGSQL_INCLUDE=-I$PGSQL_INCDIR
    PGSQL_LFLAGS="-L$PGSQL_LIBDIR -lpq"
    AC_CHECK_FUNC(crypt, , AC_CHECK_LIB(crypt, crypt, LIBS="-lcrypt $LIBS"))

    AC_DEFINE(HAVE_PGSQL)
    AC_MSG_RESULT(yes)
    have_db=yes
  else
    AC_MSG_RESULT(no)
  fi
],[
  AC_MSG_RESULT(no)
])
AC_SUBST(PGSQL_LFLAGS)
AC_SUBST(PGSQL_INCLUDE)

if test "$have_db" != "yes"; then
	echo "configure: No database selected! Use --with-XXX where XXX is your preferred database type";
	echo "configure: Server processes (zabbix_suckerd and zabbix_trapper) will not be created !";

	SUBDIRS="src/zabbix_agent src/zabbix_sender"
else
	SUBDIRS="src/zabbix_agent src/zabbix_sender src/zabbix_sucker src/zabbix_trapper"
fi

AC_SUBST(SUBDIRS)

AC_OUTPUT(Makefile src/zabbix_sender/Makefile src/zabbix_agent/Makefile \
       	src/zabbix_sucker/Makefile src/zabbix_trapper/Makefile)

echo
echo "***********************************************************"
echo "*            Now run make                                 *"
echo "*                                                         *"
echo "*            Thank you for using Zabbix !                 *"
echo "*          <http://zabbix.sourceforge.net>                *"
echo "***********************************************************"
echo