AC_INIT([ABAC], [0.1.0], [mikeryan@ISI.EDU])
AC_CONFIG_SRCDIR([libabac/abac_role.c])
AM_INIT_AUTOMAKE([foreign subdir-objects])
LT_INIT

AC_CONFIG_MACRO_DIR([m4])

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_LIBTOOL

# Explicitly hunt up perl
AC_CHECK_PROGS(PERL, perl)

# for python
AM_PATH_PYTHON
SWIG_ENABLE_CXX
SWIG_PYTHON

AC_ARG_ENABLE(debug,
    [AC_HELP_STRING([--enable-debug], [build with debug symbols])],
    [CFLAGS+="-g "],[])

# Checks for libraries.
AC_ARG_WITH([strongswan],
    [AS_HELP_STRING([--with-strongswan=PATH], [location of strongswan-4.4.0 source tree])],
    [LIBSTRONGSWAN_source=$withval],
    [AC_ERROR([path to strongswan-4.4.0 source tree required])])
test -d $LIBSTRONGSWAN_source || AC_ERROR([strongswan source dir not found. Don't use ~, use \$HOME.])
AC_SUBST([LIBSTRONGSWAN_source])

AC_ARG_WITH([strongswan-ld-path],
    [AS_HELP_STRING([--with-strongswan-ld-path=PATH],
    [directory where libstrongswan is installed if not /usr/local/lib])],
    [strongswan_ld=$withval], [strongswan_ld="/usr/local/lib"])
LDFLAGS="$LDFLAGS -L$strongswan_ld"

AC_ARG_WITH(
    [site-perl],
    [AS_HELP_STRING([--with-site-perl=DIR], 
		   [directory in which to install perl modules])],
    [SITE_PERL="$withval"], [SITE_PERL=""])
    

# this is so wrong
libstrongswan_plugins=$(grep libstrongswan_plugins $LIBSTRONGSWAN_source/Makefile | awk -F= '{ print $2 }')
test -z "$libstrongswan_plugins" && AC_ERROR([Can't find libstrongswan plugins. Make sure you've run ./configure --enable-monolithic in the strongswan source tree])
AC_SUBST(libstrongswan_plugins)

# Ask perl for a likely site_perl directory.  If the user has already specified
# it using --with-site-perl, use that value.  NB, this does not respect prefix,
# so users wishing to do a local install must use --with-site-perl
AC_MSG_CHECKING(for site_perl directory)
if test -z "$SITE_PERL"; then
	SITE_PERL=`$PERL -e 'print((grep(/site_perl/ && !m#/mach#, @INC))[0], "\n");'`
fi
AC_MSG_RESULT($SITE_PERL)
AC_SUBST(SITE_PERL)

# Checks for header files.
AC_CHECK_HEADERS([inttypes.h stddef.h stdlib.h string.h])

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_TYPE_SIZE_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT8_T
AC_CHECK_TYPES([ptrdiff_t])

# Checks for library functions.
AC_FUNC_MALLOC
AC_CHECK_FUNCS([atexit memset strchr strdup])

# Confirm that the link path includes strongswan
AC_CHECK_LIB(strongswan, library_init,,
	     [AC_MSG_ERROR('set --with-strongswan-ld-path')])

# snagged from strongswan, required
AC_CHECK_FUNC(
        [register_printf_specifier],
        [AC_DEFINE(HAVE_PRINTF_SPECIFIER)],
        [AC_CHECK_FUNC(
                [register_printf_function],
                [AC_DEFINE(HAVE_PRINTF_FUNCTION)],
                [
                        AC_MSG_NOTICE([printf does not support custom format specifiers!])
                        vstr=true
                ]
        )]
)

if test x$vstr = xtrue; then
        AC_HAVE_LIBRARY([vstr],[LIBS="$LIBS"],[AC_MSG_ERROR([Vstr string library not found])])
        AC_DEFINE(USE_VSTR)
fi

AC_CONFIG_FILES([Makefile])
AC_OUTPUT