dnl Process this file with autoconf to produce a configure script.
AC_INIT(nano.c)
AM_INIT_AUTOMAKE(nano, 0.9.10)
AM_CONFIG_HEADER(config.h:config.h.in)
ALL_LINGUAS="es de fr it"

dnl Checks for programs.
AC_PROG_CC
AC_ISC_POSIX

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(fcntl.h unistd.h malloc.h termios.h termio.h limits.h getopt.h)

dnl options
AC_ARG_ENABLE(tiny,
[  --enable-tiny           Disables features for the sake of size
                          (currently disables detailed help and i18n)],
[if test x$enableval = xyes; then
    AC_DEFINE(NANO_SMALL) tiny_support=yes
 fi])

AC_MSG_CHECKING(whether to use slang)
CURSES_LIB_NAME=""
AC_ARG_WITH(slang,
[  --with-slang[=DIR]      Use the slang library instead of curses],
[    case "$with_slang" in
    yes)
	AC_MSG_RESULT(yes)

	AC_CHECK_HEADER(slcurses.h,
	    AC_CHECK_LIB(slang, SLcurses_newwin,
		[AC_DEFINE(USE_SLANG) slang_support=yes
		CURSES_LIB="-lslang" CURSES_LIB_NAME=slang]),
	    AC_MSG_ERROR([
*** The header file slcurses.h was not found. If you wish to use
*** slang support this header file is required. Please either
*** install a version of slang that includes the slcurses.h file or
*** do not call the configure script with --with-slang
]))
	;;
    no)
	AC_MSG_RESULT(no)
	;;
    *)
	AC_MSG_RESULT(yes)

	# Needed for AC_CHECK_HEADERS and AC_CHECK_LIB to look at
	# alternate readline path
	_ldflags=${LDFLAGS}
	_cppflags=${CPPFLAGS}

	# Add additional search path
	LDFLAGS="-L$with_slang/lib $LDFLAGS"
	CPPFLAGS="-I$with_slang/include $CPPFLAGS"

	AC_CHECK_HEADER(slcurses.h,
	    AC_CHECK_LIB(slang, SLcurses_newwin,
		[AC_DEFINE(USE_SLANG) slang_support=yes
		CURSES_LIB="-L${with_slang}/lib -lslang"
		CURSES_LIB_NAME=slang],
		AC_MSG_ERROR([
*** The slang library was not found or the version you have installed
*** is incorrect.
])),
	    AC_MSG_ERROR([
*** The header file slcurses.h was not found. If you wish to use
*** slang support this header file is required. Please either
*** install a version of slang that includes the slcurses.h file or
*** do not call the configure script with --with-slang
]))

	LDFLAGS=${_ldflags}
	;;
    esac])

dnl Checks for functions
AC_CHECK_FUNCS(snprintf vsnprintf)
if test "x$ac_cv_func_snprintf" = "xno" -o "xac_cv_func_vsnprintf" = "xno"
then
	AM_PATH_GLIB(1.2.4,,
	    AC_MSG_ERROR([
*** snprintf() and/or vsnprintf() not found.  GLIB not found either.
*** You need both snprintf() and vsnprintf().  Alternatively you can
*** install the GLIB library which can be found at ftp://ftp.gtk.org/.]),
	    glib)
	glib_cflags=`$GLIB_CONFIG --cflags glib`
	glib_libs=`$GLIB_CONFIG --libs glib`
fi

dnl Checks for typedefs, structures, and compiler characteristics.

dnl Checks for library functions.
AC_TYPE_SIGNAL
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(getopt_long)

dnl Checks for libraries.


if eval "test x$CURSES_LIB_NAME = x"
then
    AC_CHECK_HEADERS(curses.h ncurses.h)
    AC_CHECK_LIB(ncurses, tgetent, CURSES_LIB="-lncurses" CURSES_LIB_NAME=ncurses)
fi

if eval "test x$CURSES_LIB_NAME = x"
then
    AC_CHECK_LIB(curses, tgetent, CURSES_LIB="-lcurses" CURSES_LIB_NAME=curses)
fi

if eval "test x$CURSES_LIB_NAME = x"
then
    AC_CHECK_LIB(termcap, tgetent, CURSES_LIB="-ltermcap" CURSES_LIB_NAME=termcap)
fi

if eval "test x$CURSES_LIB_NAME = x"
then
    AC_MSG_WARN([
*** No termcap lib available, consider getting the official ncurses
*** distribution from ftp://ftp.gnu.org/pub/gnu/ncurses if you get
*** errors compiling nano.])
else
    AC_MSG_RESULT("Using $CURSES_LIB_NAME as the termcap library")
fi


AC_CHECK_LIB($CURSES_LIB_NAME, wresize, AC_DEFINE(HAVE_WRESIZE))

dnl Parse any configure options

LIBS="$LIBS $CURSES_LIB"
AC_ARG_ENABLE(debug, [  --enable-debug          Enable debugging (def disabled)],)

AC_SUBST(CURSES_LIB)

if test "x$glib_cflags" != "x"
then
	CFLAGS="$CFLAGS $glib_cflags"
fi
if test "x$glib_libs" != "x"
then
	LDFLAGS="$LDFLAGS $glib_libs"
fi

dnl i18n stuff - pretty incomplete for now
AM_GNU_GETTEXT

AC_OUTPUT([Makefile intl/Makefile po/Makefile.in])