#
#       Copyright (c) 2004 on behalf of the EU EGEE Project:
#       The European Organization for Nuclear Research (CERN),
#       Istituto Nazionale di Fisica Nucleare (INFN), Italy
#       Datamat Spa, Italy
#       Centre National de la Recherche Scientifique (CNRS), France
#       CS Systeme d'Information (CSSI), France
#       Royal Institute of Technology, Center for Parallel Computers (KTH-PDC), Sweden
#       Universiteit van Amsterdam (UvA), Netherlands
#       University of Helsinki (UH.HIP), Finland
#       University of Bergen (UiB), Norway
#       Council for the Central Laboratory of the Research Councils (CCLRC), United Kingdom
#
#       Common configure.ac file for the GLite WMS Common module
#
#       Authors: Alberto Di Meglio <alberto.di.meglio@cern.ch>
#       Version info: $Id: configure.ac 17727 2014-04-08 14:19:36Z msalle $
#       Release: $Name: not supported by cvs2svn $
#
# Revision history: See ChangeLog
                                                                                                                                                             
# Process this file with autoconf to produce a configure script.

AC_PREREQ(2.57)
AC_INIT([lcmaps], [1.6.6])
AC_CONFIG_MACRO_DIR([project])
AM_INIT_AUTOMAKE([1.6.3 subdir-objects foreign])
AC_CONFIG_SRCDIR([src/lcmaps_config.h.in])

# Notices.
AC_COPYRIGHT([Copyright (c) 2009 The EU EGEE Project
See LICENCE file for details
])
AC_REVISION([$Revision: 17727 $])

#Environment.
WORKDIR=`pwd`
AC_SUBST(WORKDIR)

DISTBIN=$WORKDIR/../../dist
AC_SUBST(DISTBIN)

# Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_LIBTOOL
AC_PROG_INSTALL

dnl ===================
dnl Lex and Yacc checks
dnl ===================
AC_PROG_YACC
dnl Need version for yyparse prototype
yacc_version=$($YACC --version 2> /dev/null|head -1|sed 's/[[^0-9]]\+//')
if test "x$yacc_version" != "x"; then
    yacc_major=$(echo $yacc_version|cut -d. -f1)
    yacc_minor=$(echo $yacc_version|cut -d. -f2)
    AC_MSG_NOTICE([yacc is "$YACC" version is $yacc_major.$yacc_minor])
else
    AC_MSG_NOTICE([yacc is "$YACC" version is unknown])
fi


AM_PROG_LEX
if test "$LEX"="flex"; then
    dnl Test whether flex has the -D option to set macros
    AM_CONDITIONAL([LEX_HAS_D],[$LEX -DTEST -V > /dev/null 2> /dev/null])
fi


# Checks for libraries.
# dlopen library
AC_CHECK_LIB([dl], [dlopen],
[
    DL_LIBS=-ldl
    AC_SUBST([DL_LIBS])
],
[
    AC_MSG_ERROR([cannot find libdl])
])

# Checks for header files.
AC_CHECK_HEADERS([dlfcn.h stdlib.h string.h syslog.h unistd.h])

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

# Checks for library functions.
AC_CHECK_FUNCS([malloc realloc setenv strchr strcspn strdup strerror strpbrk strspn strtol getgrouplist])


# Building headers mode
enable_build_headers_default=no
AC_MSG_CHECKING([whether to enable building header files])
AC_ARG_ENABLE([headers], [AC_HELP_STRING([--enable-headers],[build headers])],
[
    AC_MSG_RESULT(yes)
    enable_build_headers="yes"
],[
    AC_MSG_RESULT($enable_build_headers_default)
    enable_build_headers=$enable_build_headers_default
]
)

# Building GLOBUS mode
enable_gsi_mode_default=yes
AC_ARG_ENABLE([gsi-mode],
    [AC_HELP_STRING([--enable-gsi-mode],
		    [create lcmaps flavour that provides a GSI interface (default)])],
    [enable_gsi_mode=$enableval],
    [enable_gsi_mode=$enable_gsi_mode_default])

# When building headers only
AM_CONDITIONAL([ENABLE_HEADERS], [test "x$enable_build_headers" = "xyes"])
AS_IF([test "x$enable_build_headers" = "xyes"], [
    AC_MSG_NOTICE("building headers")

    LCMAPS_FLAVOUR=""
    LCMAPS_FLAVOUR_NAME=""

    AC_DEFINE(ENABLE_HEADERS, 1,[Building headers exclusively enabled])
], [
    # Find proper shared library extension
    eval SHREXT=$shrext_cmds
    AC_SUBST(SHREXT)

    # Configuration items

    AC_CONFIG_FILES([src/Makefile])
    AC_CONFIG_FILES([examples/Makefile])

    AC_CONFIG_FILES([etc/Makefile])

    AC_DEFINE(ENABLE_HEADERS, 0,[Building headers exclusively disabled])
    
    AS_IF([test "x$enable_gsi_mode" = "xyes"],[
	LCMAPS_FLAVOUR=""
	LCMAPS_FLAVOUR_NAME=""

	AC_DEFINE(LCMAPS_GSI_MODE, 1, "If defined provide the GSI interface to LCMAPS")
	AC_MSG_RESULT([Creating GSI flavour of LCMAPS])

	# not sure what canonical symbol we should check for here
	# NOTE: we should check for libcrypto, but presumably due to a clash
	# with globus linking explicitly against libcrypto leads to a segv...
	AC_CHECK_LIB([crypto], [X509_free],
	[
	    CRYPTO_LIBS=-lcrypto
	    AC_SUBST([CRYPTO_LIBS])
	],
	[
	    AC_MSG_ERROR([cannot find libcrypto])
	])

	# Check globus modules
	AC_GLOBUS([COMMON],[],AC_MSG_FAILURE(["no globus-common found"]))
	AC_GLOBUS([GSSAPI_GSI],[],AC_MSG_FAILURE(["no globus-gssapi-gsi found"]))
	AC_GLOBUS([GSS_ASSIST],[],AC_MSG_FAILURE(["no globus-gss-assist found"]))
	AC_GLOBUS([GSI_CREDENTIAL],[],AC_MSG_FAILURE(["no globus-gsi-credentials found"]))

	# Check voms location, only check for C API
	have_voms=no
	AC_VOMS([C])
	AC_MSG_RESULT(["VOMS found $have_voms"])
	if test "x$have_voms" = "xno" ; then
	    AC_MSG_FAILURE(["no working voms found"])
	fi

	AC_CONFIG_FILES([src/lcmaps.pc])
	AC_CONFIG_FILES([src/lcmaps-gss-assist-gridmap.pc])
	AC_CONFIG_FILES([src/lcmaps-return-poolindex.pc])
	AC_CONFIG_FILES([src/lcmaps-return-account-from-pem.pc])
	AC_CONFIG_FILES([src/lcmaps-verify-account-from-pem.pc])

    ],[
	LCMAPS_FLAVOUR="_without_gsi"
	LCMAPS_FLAVOUR_NAME="-without-gsi"

	PACKAGE="$PACKAGE-without-gsi"
	AC_MSG_RESULT([Setting package name to $PACKAGE])
	AC_SUBST(PACKAGE)

	PACKAGE_TARNAME="$PACKAGE_TARNAME-without-gsi"
	AC_MSG_RESULT([setting package tarname $PACKAGE_TARNAME])
	AC_SUBST(PACKAGE_TARNAME)

	AC_MSG_RESULT([Creating GSI-free flavour of LCMAPS])
	
	AC_CONFIG_FILES([src/lcmaps-without-gsi.pc])
	AC_CONFIG_FILES([src/lcmaps-gss-assist-gridmap-without-gsi.pc:src/lcmaps-gss-assist-gridmap.pc.in])
	AC_CONFIG_FILES([src/lcmaps-return-poolindex-without-gsi.pc:src/lcmaps-return-poolindex.pc.in])
    ])
])

AM_CONDITIONAL(LCMAPS_GSI_MODE, test x$enable_gsi_mode = xyes)

AC_SUBST(LCMAPS_FLAVOUR)
AC_SUBST(LCMAPS_FLAVOUR_NAME)

# Set OSG macros when needed
AC_ARG_ENABLE([osg], 
              [AC_HELP_STRING([--enable-osg],
			      [Enables the Open Science Grid specific build option])],
              ADD_THESE_DEFINES="-D ALLOW_EMPTY_CREDENTIALS -D CONF_LCMAPS_DEBUG_LEVEL=4 -D GUMSOSG",
              ADD_THESE_DEFINES="-D ALLOW_EMPTY_CREDENTIALS -D CONF_LCMAPS_DEBUG_LEVEL=4")

AC_SUBST(ADD_THESE_DEFINES)

# Set default directories
AC_SUBST([LCMAPS_ETC_HOME], [${sysconfdir}/lcmaps])
AC_SUBST([LCMAPS_LIB_HOME], [$libdir])

dnl allow the setting of a different path for the LCMAPS plug-ins
dnl Makefiles should set the plugindir to $MODULEDIR.
AC_ARG_WITH([lcmaps_moduledir],
    [AS_HELP_STRING([--with-lcmaps-moduledir=DIR],
                    [Specify the default install location of the LCMAPS plug-ins, when relative: prefix with LIBDIR [default=LIBDIR/lcmaps]])],
    [AS_IF([test "x`echo $withval|cut -c1`" = "x/" ],
	[AC_SUBST([LCMAPS_MOD_HOME], [$withval])], dnl Absolute path
	[AC_SUBST([LCMAPS_MOD_HOME], [$LCMAPS_LIB_HOME/$withval])])
    ],
    [AC_SUBST([LCMAPS_MOD_HOME], [$LCMAPS_LIB_HOME/lcmaps])]
)
AC_MSG_RESULT([LCMAPS_MOD_HOME set to $LCMAPS_MOD_HOME])

LCMAPS_MAJOR_VERSION=`echo ${VERSION}|cut -d. -f1`
LCMAPS_MINOR_VERSION=`echo ${VERSION}|cut -d. -f2`
LCMAPS_PATCH_VERSION=`echo ${VERSION}|cut -d. -f3`
AC_SUBST(LCMAPS_MAJOR_VERSION)
AC_SUBST(LCMAPS_MINOR_VERSION)
AC_SUBST(LCMAPS_PATCH_VERSION)

# Configuration items
AC_CONFIG_FILES([Makefile])
AC_CONFIG_FILES([doc/Makefile])
AC_CONFIG_FILES([doc/evaluationmanager/Makefile])
AC_CONFIG_FILES([interface/Makefile])
AC_CONFIG_FILES([interface/lcmaps_version.h])
AC_CONFIG_FILES([interface/lcmaps-interface.pc])
AC_CONFIG_FILES([interface/lcmaps-globus-interface.pc])
AC_CONFIG_FILES([interface/lcmaps-openssl-interface.pc])
AC_CONFIG_FILES([interface/lcmaps-basic-interface.pc])

AC_CONFIG_HEADERS([src/lcmaps_config.h])

AC_OUTPUT