AM_INIT_AUTOMAKE(logtool,1.2.7)
AM_PROG_CC_STDC

dnl Process this file with autoconf to produce a configure script.
AC_INIT(src/logtool.c)
dnl Checks for programs.
AC_PROG_CC
AC_PREFIX_DEFAULT(/usr)

dnl We want the sysconfdir to be damn near standard
AC_SUBST(sysconfdir)
if test "`echo "$sysconfdir" | grep "prefix"`" ; then
sysconfdir=`echo $sysconfdir/logtool | sed s/'${prefix}'/""/g`
else
sysconfdir=$sysconfdir
fi

AC_SUBST(version)
version=1.2.7

AC_PROG_INSTALL
AC_SUBST(installprog)
installprog="$INSTALL"
	
AC_PROG_LN_S
AC_PROG_MAKE_SET

AC_HEADER_STDC

AC_CHECK_FUNCS(inet_addr,
[],
[
        AC_CHECK_LIB(nsl, inet_addr,
        [
                LIBS="-lnsl $LIBS"
        ],
        [
                AC_CHECK_LIB(m, inet_addr,
                [
                        LIBS="-lm $LIBS"
                ],
                [
                        AC_MSG_WARN([Warning: unable to find inet_addr - resolver disabled])
                        AC_DEFINE(NO_RESOLVER)
                        NO_RESOLVER="yes"
                ])
        ])
])

AC_CHECK_FUNCS(gethostbyaddr,
[],
[
        AC_CHECK_LIB(nsl, gethostbyaddr,
        [
                tvar="`echo $LIBS | grep lnsl`"
                if test "$tavr" != "" ; then
                  LIBS="-lnsl $LIBS"
                fi
        ],
        [
                AC_CHECK_LIB(m, gethostbyaddr,
                [
                        tvar="`echo $LIBS | grep lm`"
                        if test "$tavr" != "" ; then
                          LIBS="-lm $LIBS"
                        fi
                ],
                [
                        AC_MSG_WARN([Warning: unable to find gethostbyaddr - resolver disabled])
                        AC_DEFINE(NO_RESOLVER)
                        NO_RESOLVER="yes"
                ])

        ])
]
[])

dnl Checks for header files.
AC_CHECK_HEADERS(unistd.h sysexits.h regex.h time.h,
[
],
[
	AC_MSG_ERROR([Fatal Error: required header file missing.])
])

dnl this isn't a fatal error, as we can use our own copy (we hope :)
AC_CHECK_HEADERS(getopt.h)

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

dnl Checks for library functions.
AC_CHECK_FUNCS(strncasecmp,
[],
[
	AC_MSG_ERROR([Fatal Error: strncasecmp not available])
])

AC_CHECK_FUNCS(setenv, 
[
	AC_DEFINE(HAVE_SETENV)
],
[])

AC_CHECK_FUNCS(regcomp regexec regfree,
[],
[
	AC_MSG_ERROR([Fatal Error: regex library functions nonstandard/incomplete])
])


AC_CONFIG_HEADER(config.h) 

AC_OUTPUT(logtool.spec src/config.h src/Makefile Makefile conf/logtool.conf doc/logtool.1 doc/logtool.txt)

echo "

Build was configured as follows:

Prefix:					$prefix
Configuration files wil be placed in:	$sysconfdir
Binaries will be placed in:		$prefix/bin
Using this install program:		$installprog
We will use the following compiler:	$CC
With the following CFLAGS:              $CFLAGS
With the following DEFS:                $DEFS
With the following LIBS:                $LIBS"