# This file is part of vmod-binlog
# Copyright (C) 2013, 2014 Sergey Poznyakoff
#
# Vmod-binlog is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# Vmod-binlog is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with vmod-binlog.  If not, see <http://www.gnu.org/licenses/>.
AC_PREREQ(2.69)
AC_INIT([vmod-binlog], 1.0.91, [gray@gnu.org])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_SRCDIR(src/binlog.c)
AM_CONFIG_HEADER(config.h)

AC_CANONICAL_SYSTEM
AC_LANG(C)

AM_INIT_AUTOMAKE([1.14 gnu tar-ustar subdir-objects])

AC_GNU_SOURCE
AC_PROG_CC
AC_PROG_CC_STDC
AM_PROG_CC_C_O
if test "x$ac_cv_prog_cc_c99" = xno; then
	AC_MSG_ERROR([could not find a C99 compatible compiler])
fi
AC_PROG_CPP
AC_PROG_YACC
AC_PROG_INSTALL
AC_PROG_LIBTOOL
AC_PROG_MAKE_SET

LT_PREREQ(2.2.5a)
LT_CONFIG_LTDL_DIR([libltdl])
LT_INIT([dlopen])
LTDL_INIT([recursive])
AC_CONFIG_FILES([libltdl/Makefile])

# Check for pkg-config
PKG_PROG_PKG_CONFIG

AC_SYS_LARGEFILE

# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([sys/stdlib.h])

# Check for python
AC_CHECK_PROGS(PYTHON, [python], [
	AC_MSG_ERROR([python is not found.])])

# Varnish source tree
AC_ARG_VAR([VARNISHSRC], [path to Varnish source tree])
AC_ARG_WITH([varnish-source],
            AC_HELP_STRING([--with-varnish-source=DIR],
	                   [Varnish sources are located in DIR]),
	    [VARNISHSRC=$withval])

if test -z "$VARNISHSRC"; then
	AC_MSG_ERROR([no Varnish source tree specified])
fi
case "$VARNISHSRC" in
/*) ;;
*)  AC_MSG_ERROR([varnish source path must be absolute pathname])
esac

VARNISHSRC=`cd $VARNISHSRC && pwd`
VARNISHVERSION=
AC_CHECK_FILE([$VARNISHSRC/include/varnishapi.h],
  [VARNISHVERSION=3],
  [AC_CHECK_FILE([$VARNISHSRC/include/vapi/vsm.h],
     [VARNISHVERSION=4],
     [AC_MSG_FAILURE(["$VARNISHSRC" is not a Varnish source directory])]) ])

AC_DEFINE_UNQUOTED([VARNISHVERSION],$VARNISHVERSION,[Varnish major version number])
AM_CONDITIONAL([VARNISH3],[test $VARNISHVERSION -eq 3])
AM_CONDITIONAL([VARNISH4],[test $VARNISHVERSION -eq 4])     

# Check that varnishtest is built in the varnish source directory
AC_CHECK_FILE([$VARNISHSRC/bin/varnishtest/varnishtest],
  [],
  [AC_MSG_FAILURE([cannot find "$VARNISHSRC/bin/varnishtest/varnishtest". Please build your varnish source directory])]
)

# vmod installation dir
AC_ARG_VAR([VMODDIR],  [vmod installation directory])
AC_ARG_WITH([vmoddir],
  AC_HELP_STRING([--with-vmoddir=DIR],
                 [install modules to DIR]),
  [case "$withval" in
   /*)   VMODDIR=$withval;;
   no)   unset VMODDIR;;
   *)    AC_MSG_ERROR([argument to --with-vmoddir must be absolute pathname])
   esac],[VMODDIR=`pkg-config --variable=vmoddir varnishapi`
   if test -z "$VMODDIR"; then
	AC_MSG_FAILURE([cannot determine vmod installation directory])
   fi])


if test -z "$VMODDIR"; then
       VMODDIR='$(libdir)/varnish/mods'
fi

AC_SUBST(BINLOGSEL_MODDIR,'$(libdir)/$(PACKAGE)')

# Initialize the test suite.
AC_CONFIG_TESTDIR(tests)
AC_CONFIG_FILES([tests/Makefile tests/atlocal])
AM_MISSING_PROG([AUTOM4TE], [autom4te])

AC_CONFIG_FILES([
	Makefile
	src/Makefile
	doc/Makefile
])
AC_OUTPUT