AC_INIT(src/hdate.h)

dnl Set release number
PACKAGE=libhdate
LIBHDATE_MAJOR_VERSION=1
LIBHDATE_MINOR_VERSION=6
LIBHDATE_MICRO_VERSION=02

VERSION=$LIBHDATE_MAJOR_VERSION.$LIBHDATE_MINOR_VERSION.$LIBHDATE_MICRO_VERSION

dnl libtool library numbering
VERSION_INFO=$LIBHDATE_MAJOR_VERSION:$LIBHDATE_MINOR_VERSION:0

AC_SUBST(VERSION_INFO)

AM_INIT_AUTOMAKE($PACKAGE, $VERSION)
AM_MAINTAINER_MODE

dnl Checks for programs.
AC_ISC_POSIX
AC_GNU_SOURCE
AC_USE_SYSTEM_EXTENSIONS
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_STDC_HEADERS
AM_PROG_LIBTOOL

AM_MAINTAINER_MODE

AC_C_CONST
AC_CONFIG_MACRO_DIR([m4])
AC_PATH_PROG(PKG_CONFIG, pkg-config, no)

CFLAGS=" -Wall -g -Wformat -Wformat-security -Werror=format-security -D_FORTIFY_SOURCE=2 -O1 -fstack-protector --param ssp-buffer-size=4 -fPIE -pie"
LIBS=-lm

dnl =======================================================================================

AC_CHECK_PROG(have_swig, "swig", yes, no)

dnl =======================================================================================

AC_CHECK_PROG(have_fpc, "fpc", yes, no)

build_fpc=$have_fpc

AC_ARG_ENABLE([fpc], 
  [AS_HELP_STRING([--disable-fpc],
  [do not build free pascal binding])],
  [build_fpc=no], [build_fpc=$have_fpc])

if test "$have_fpc" = "yes"; then
	PA_VERSION=`fpc -iV`
	PA_TPR=`fpc -iTP`
	PA_TOS=`fpc -iTO`
	PA_MODULES_PATH="/usr/lib/fpc/$PA_VERSION/units/$PA_TPR-$PA_TOS"
	AC_SUBST([PA_VERSION])
	AC_SUBST([PA_MODULES_PATH])
fi

dnl =======================================================================================

AC_CHECK_PROG(have_gpc, "gpc", yes, no)

build_gpc=$have_gpc

AC_ARG_ENABLE([gpc], 
  [AS_HELP_STRING([--disable-gpc],
  [do not build gnu pascal binding])],
  [build_gpc=no], [build_gpc=$have_gpc])

if test "$have_gpc" = "yes"; then
	GP_MODULES_PATH=`gpc -print-search-dirs | grep install | cut -d' ' -f 2`
	AC_SUBST([GP_MODULES_PATH])
fi

dnl =======================================================================================

AM_CONDITIONAL(WITH_GPC_FPC, [test "$build_fpc" = "yes" -a "$build_gpc" = "yes" ])
AM_CONDITIONAL(WITH_GPC, [test "$build_gpc" = "yes" -a "$build_fpc" != "yes" ])
AM_CONDITIONAL(WITH_FPC, [test "$build_gpc" != "yes" -a "$build_fpc" = "yes" ])

dnl =======================================================================================

AC_CHECK_PROG(have_python, "python", yes, no)

build_python=$have_python

AC_ARG_ENABLE([python], 
  [AS_HELP_STRING([--disable-python],
  [do not build python binding])],
  [build_python=no], [build_python=$have_python])

AC_ARG_WITH(python-sitelib-dir, 
  [AS_HELP_STRING([--with-python-sitelib-dir=PATH],
  [path to python site lib])])

if test "$have_python" = "yes"; then
	  PY_PREFIX=`python -c 'import sys ; print sys.prefix'`
	  PY_VERSION=`python -c 'import sys ; print sys.version[[0:3]]'`
	  AC_MSG_CHECKING(for $PY_PREFIX/include/python$PY_VERSION/Python.h)
	  if test -f $PY_PREFIX/include/python$PY_VERSION/Python.h; then
		  AC_MSG_RESULT(yes)
		  PY_CFLAGS="-I$PY_PREFIX/include/python$PY_VERSION"
		  
		  if test "$with_python_sitelib_dir" = "" ; then
		    PY_MODULES_PATH="$PY_PREFIX/lib/python$PY_VERSION/dist-packages"
		  else
		    PY_MODULES_PATH=$with_python_sitelib_dir
		  fi
		  
		  AC_SUBST([PY_VERSION])
		  AC_SUBST([PY_CFLAGS])
		  AC_SUBST([PY_MODULES_PATH])
		  if test "$have_swig" = "no"; then
			build_python=no
		  fi
	  else
		  AC_MSG_RESULT(no)
		  build_python=no
	  fi
fi

AM_CONDITIONAL(WITH_PYTHON, test "$build_python" = "yes")

dnl =======================================================================================

AC_CHECK_PROG(have_ruby, "ruby", yes, no)

build_ruby=$have_ruby

AC_ARG_ENABLE([ruby], 
  [AS_HELP_STRING([--disable-ruby],
  [do not build ruby binding])],
  [build_ruby=no], [build_ruby=$have_ruby])

AC_ARG_WITH(ruby-sitelib-dir, 
  [AS_HELP_STRING([--with-ruby-sitelib-dir=PATH],
  [path to ruby site lib])])

if test "$have_ruby" = "yes"; then
	  RU_PREFIX=`ruby -e 'require "mkmf"; puts $topdir'`
	  RU_VERSION=`ruby -e "require 'mkmf'; puts config_string('MAJOR')"`
	  RU_VERSION+=.`ruby -e "require 'mkmf'; puts config_string('MINOR')"`
	  AC_MSG_CHECKING(for $RU_PREFIX/ruby.h)
	  if test -f $RU_PREFIX/ruby.h; then
		  AC_MSG_RESULT(yes)
		  RU_CFLAGS="-I$RU_PREFIX"
		  
		  if test "$with_ruby_sitelib_dir" = "" ; then
		    RU_MODULES_PATH="$RU_PREFIX"
		  else
		    RU_MODULES_PATH=$with_ruby_sitelib_dir
		  fi
		  
		  AC_SUBST([RU_VERSION])
		  AC_SUBST([RU_CFLAGS])
		  AC_SUBST([RU_MODULES_PATH])
		  if test "$have_swig" = "no"; then
			build_ruby=no
		  fi
	  else
		  AC_MSG_RESULT(no)
		  build_ruby=no
	  fi
fi

AM_CONDITIONAL(WITH_RUBY, test "$build_ruby" = "yes")

dnl =======================================================================================

AC_CHECK_PROG(have_php, "php", yes, no)

build_php=$have_php

AC_ARG_ENABLE([php], 
  [AS_HELP_STRING([--disable-php],
  [do not build php binding])],
  [build_php=no], [build_php=$have_php])

AC_ARG_WITH(php-sitelib-dir, 
  [AS_HELP_STRING([--with-php-sitelib-dir=PATH],
  [path to php site lib])])

if test "$have_php" = "yes"; then
	  AC_CHECK_PROG(have_php_config, "php-config5", yes, no)
	  if test "$have_php_config" = "yes"; then
	      
	      PH_CONFIG_PATH=`php --ini |  grep "Scan" | cut -d: -f2 | sed 's/\s//g'`
	      PH_INCLUDE_PATH=`php -r "echo get_include_path();" | cut -f2 -d:`
		  if test "$with_php_sitelib_dir" = "" ; then
		    PH_MODULES_PATH=`php-config5 --extension-dir`
		  else
		    PH_MODULES_PATH=$with_php_sitelib_dir
		  fi
		  
		  AC_SUBST([PH_CONFIG_PATH])
		  AC_SUBST([PH_INCLUDE_PATH])
		  AC_SUBST([PH_MODULES_PATH])
		  if test "$have_swig" = "no"; then
			build_php=no
		  fi
	  else
		  AC_MSG_RESULT(no)
		  build_php=no
	  fi
fi

AM_CONDITIONAL(WITH_PHP, test "$build_php" = "yes")

dnl =======================================================================================

AC_CHECK_PROG(have_perl, "perl", yes, no)

build_perl=$have_perl

AC_ARG_ENABLE([perl], 
  [AS_HELP_STRING([--disable-perl],
  [do not build perl binding])],
  [build_perl=no], [build_perl=$have_perl])

AC_ARG_WITH(perl-sitelib-dir, 
  [AS_HELP_STRING([--with-perl-sitelib-dir=PATH],
  [path to perl site lib])])
  
if test "$have_perl" = "yes"; then
	  PE_PREFIX=`(perl -e 'use Config; print $Config{archlib};')`
	  AC_MSG_CHECKING(for $PE_PREFIX/CORE/perl.h)
	  if test -f $PE_PREFIX/CORE/perl.h; then
		  AC_MSG_RESULT(yes)
		  PE_CFLAGS="-I$PE_PREFIX/CORE "
		  PE_CFLAGS=$PE_CFLAGS`(perl -e 'use Config; print $Config{cppflags};')`
		  
		  if test "$with_perl_sitelib_dir" = "" ; then
		    PE_MODULES_PATH=`(perl -e 'use Config; print $Config{sitelib};')`
		  else
		    PE_MODULES_PATH=$with_perl_sitelib_dir
		  fi
		  		  
		  AC_SUBST([PE_CFLAGS])
		  AC_SUBST([PE_MODULES_PATH])
		  if test "x$have_swig" = "xno"; then
			build_perl=no
		  fi
	  else
		  AC_MSG_RESULT(no)
		  build_perl=no
	  fi
fi

AM_CONDITIONAL(WITH_PERL, test "$build_perl" = "yes")

dnl =======================================================================================

dnl gettext

dnl Languages which your application supports
ALL_LINGUAS="he es_MX ru fr sv"
AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION([0.18.1])

if test "$DATADIRNAME" = ""; then
   DATADIRNAME="share"
   AC_SUBST(DATADIRNAME)
fi

localepath=`eval eval echo ${localedir}`

AC_DEFINE_UNQUOTED(PACKAGE_LOCALE_DIR, "${localepath}")

dnl =======================================================================================

build_hcal=yes

AC_ARG_ENABLE([hcal], 
  [AS_HELP_STRING([--disable-hcal],
  [do not build hcal/hdate utility programs])],
  [build_hcal=no], [build_hcal=yes])

AM_CONDITIONAL(WITH_HCAL, test "$build_hcal" = "yes")

dnl =======================================================================================

AC_SUBST(CFLAGS)
AC_SUBST(LIBS)

dnl =======================================================================================

AC_OUTPUT([
Makefile
libhdate.pc
po/Makefile.in
docs/Makefile
docs/man/Makefile
docs/man/man1/Makefile
docs/man/man3/Makefile
src/Makefile
examples/Makefile
examples/hcal/Makefile
examples/bindings/Makefile
examples/bindings/pascal/Makefile
bindings/Makefile
bindings/python/Makefile
bindings/perl/Makefile
bindings/pascal/Makefile
bindings/ruby/Makefile
bindings/php/Makefile
])

dnl ===========================================================================================

echo "
$PACKAGE-$VERSION

	prefix:				${prefix}
	compiler:			${CC}
	locale-dir:			$localepath
	
	have swig			${have_swig}
	have free pascal		${have_fpc}
	have gnu pascal			${have_gpc}
	have python			${have_python}
	have perl			${have_perl}
	have ruby			${have_ruby}
	have php			${have_php} php-dev,php-cli ${have_php_config}
	
	build hcal			${build_hcal}
	
	build python binding	${build_python}
	build perl binding		${build_perl}
	puild free pascal binding	${build_fpc}
	puild ruby binding		${build_ruby}
	puild php binding		${build_php}
	
	perl site lib path:		$PE_MODULES_PATH
	python site lib path:		$PY_MODULES_PATH
	free pascal site lib path:	$PA_MODULES_PATH
	gnu pascal site lib path:	$GP_MODULES_PATH
	ruby site lib path:		$RU_MODULES_PATH
	php site lib path:		$PH_MODULES_PATH
	  php config path:		$PH_CONFIG_PATH
	  php include path:		$PH_INCLUDE_PATH
"