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dnl 
dnl Copyright (c) 2004, Stefan Walter
dnl All rights reserved.
dnl 
dnl Redistribution and use in source and binary forms, with or without 
dnl modification, are permitted provided that the following conditions 
dnl are met:
dnl 
dnl     * Redistributions of source code must retain the above 
dnl       copyright notice, this list of conditions and the 
dnl       following disclaimer.
dnl     * Redistributions in binary form must reproduce the 
dnl       above copyright notice, this list of conditions and 
dnl       the following disclaimer in the documentation and/or 
dnl       other materials provided with the distribution.
dnl     * The names of contributors to this software may not be 
dnl       used to endorse or promote products derived from this 
dnl       software without specific prior written permission.
dnl 
dnl THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
dnl "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
dnl LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
dnl FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
dnl COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
dnl INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
dnl BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 
dnl OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
dnl AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
dnl OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
dnl THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 
dnl DAMAGE.
dnl 
dnl
dnl CONTRIBUTORS
dnl  Stef Walter <stef@memberwebs.com>
dnl 

dnl Process this file with autoconf to produce a configure script.
AC_INIT(httpauth, 0.9.5, stef@memberwebs.com)
AM_INIT_AUTOMAKE(httpauth, 0.9.5)

LDFLAGS="$LDFLAGS -L/usr/local/lib"
CFLAGS="$CFLAGS -I/usr/local/include -g -O0"

AC_CONFIG_SRCDIR([daemon/httpauthd.c])
AM_CONFIG_HEADER([config.h])

# Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET

# Check for the various options
AC_ARG_WITH(ldap, [  --with-ldap		  with LDAP support])
AC_ARG_WITH(pgsql, [  --with-pgsql		  with Postgres support])
AC_ARG_WITH(ldap, [  --with-mysql		  with MYSQL support])
AC_ARG_ENABLE(ntlm, [  --enable-ntlm		  enable NTLM support])

# TODO: Figure out why we need this wierd hack
ACX_PTHREAD( , [echo "ERROR: Pthread support not found."; exit 1] )

LIBS="$PTHREAD_LIBS $LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"

AC_CHECK_LIB([c], [crypt], , [
	AC_CHECK_LIB([crypt_r], [crypt], , [
		AC_CHECK_LIB([crypt], [crypt], ,
				[ echo "ERROR: Crypt library required."; exit 1] )
		])
	])

# Checks for header files.
AC_HEADER_STDC 
AC_CHECK_HEADERS([unistd.h stdio.h stddef.h fcntl.h stdlib.h assert.h errno.h stdarg.h string.h], ,
	[echo "ERROR: Required C header missing"; exit 1])
AC_CHECK_HEADERS([err.h])

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

AC_CHECK_DECL(PTHREAD_MUTEX_ERRORCHECK_NP, [AC_DEFINE(HAVE_ERR_MUTEX, 1, "Error Mutex Type")], 
	[AC_CHECK_DECL(PTHREAD_MUTEX_ERRORCHECK, [AC_DEFINE(HAVE_ERR_MUTEX, 2)], 
		[echo "ERROR: Missing error checking mutex functionality in pthread.h"],
	[ #include <pthread.h> ])], [ #include <pthread.h> ])

# Required Functions
AC_CHECK_FUNCS([memset strerror malloc realloc getopt strchr tolower getaddrinfo], , 
	       [echo "ERROR: Required function missing"; exit 1])
AC_CHECK_FUNCS([strlwr thr_yield sched_yield pthread_yield daemon])

# LDAP support
AM_CONDITIONAL(WITH_LDAP, test -n "$with_ldap")
if test -n "$with_ldap"; then

	echo "enabling LDAP support"
	
 	if test "$with_ldap" != "yes"; then
		LDFLAGS="$LDFLAGS -L$with_ldap/lib"
		CFLAGS="$CFLAGS -I$with_ldap/include"
	fi
	
	AC_CHECK_LIB([ldap], [ldap_init], ,
			[ echo "ERROR: Open LDAP 2.x library required."; exit 1] )

	AC_CHECK_HEADERS(ldap.h)
	AC_DEFINE_UNQUOTED(WITH_LDAP, 1, [With LDAP Support] )
fi

# PGSQL support
AM_CONDITIONAL(WITH_PGSQL, test -n "$with_pgsql")
if test -n "$with_pgsql"; then

  	echo "enabling PGSQL support"
	
 	if test "$with_pgsql" != "yes"; then
		LDFLAGS="$LDFLAGS -L$with_pgsql/lib"
		CFLAGS="$CFLAGS -I$with_pgsql/include"
	fi
	
	AC_CHECK_LIB([pq], [PQexec], ,
			[ echo "ERROR: Postgres libpq library required."; exit 1] )

	AC_CHECK_HEADERS(libpq-fe.h, postgresql/libpq-fe.h)
	AC_DEFINE_UNQUOTED(WITH_PGSQL, 1, [With PGSQL Support] )
fi

# MYSQL support

AM_CONDITIONAL(WITH_MYSQL, test -n "$with_mysql")
if test -n "$with_mysql"; then

  	echo "enabling MYSQL support"
	  	
 	if test "$with_mysql" != "yes"; then
 	
		MYSQL_LIBS="-L$with_mysql/lib -L$with_mysql/lib/mysql -lz"
		MYSQL_CFLAGS="-I$with_mysql/include -I$with_mysql/include/mysql"
		
	else

		AC_CHECK_MYSQL		
		
	fi

	# MYSQL really sucks when it comes to all of this
	LDFLAGS="$LDFLAGS `echo $MYSQL_LIBS | sed -e "s/'//g"`"
	CFLAGS="$CFLAGS `echo $MYSQL_CFLAGS | sed -e "s/'//g"`"
	
	AC_CHECK_LIB([mysqlclient], [mysql_init], ,
			[ echo "ERROR: MYSQL mysqlclient library required."; exit 1] )

	AC_CHECK_HEADERS(mysql.h)
	AC_DEFINE_UNQUOTED(WITH_MYSQL, 1, [With MYSQL Support] )
fi

# NTLM Support
AM_CONDITIONAL(WITH_NTLM, test -n "$enable_ntlm")
if test -n "$enable_ntlm"; then
    echo "enabling NTLM support"
    AC_DEFINE_UNQUOTED(WITH_NTLM, 1, [With NTLM Support] )
fi

# Have to resolve this for the path below
if test "${prefix}" = "NONE"; then
    prefix=$ac_default_prefix
fi

# APACHE Build stuff

AC_PATH_PROG(APXS, apxs, "failed")
if test "$APXS" = "failed"; then
    AC_PATH_PROG(APXS2, apxs2, "failed")
	if test "$APXS2" = "failed"; then
		APXS="apxs"
	else
	    APXS=$APXS2
	fi
fi

AM_CONDITIONAL(MANUAL_BUILD, false)

AC_SUBST(APXS)

AC_PATH_PROG(APACHECTL, apachectl, "failed")
if test "$APACHECTL" = "failed"; then
    AC_PATH_PROG(APACHE2CTL, apache2ctl, "failed")
	if test "$APACHE2CTL" = "failed"; then
		APACHECTL="apachectl"
	else
	    APACHECTL=$APACHE2CTL
	fi
fi

AC_SUBST(APACHECTL)


AC_DEFINE_UNQUOTED(CONF_PREFIX, "`eval echo ${sysconfdir}`", [Installation Prefix] )

# Debug mode
AC_ARG_ENABLE(debug, 
	    AC_HELP_STRING([--enable-debug],
	    [Compile binaries in debug mode]))

if test "$enable_debug" = "yes"; then
  	CFLAGS="$CFLAGS -g -O0 -Wall"
  	AC_DEFINE_UNQUOTED(_DEBUG, 1, [In debug mode])
  	echo "enabling debug compile mode"
fi

AC_CONFIG_FILES([Makefile 
    daemon/Makefile 
    doc/Makefile 
    tools/Makefile 
    apache1x/Makefile
    apache2x/Makefile
    java/Makefile
    tests/Makefile])
AC_OUTPUT