dnl Process this file with autoconf to produce a configure script.
dnl written jan/1997
dnl by T.E.Dickey <dickey@clark.net>
dnl and Jim Spath <jspath@mail.bcpl.lib.md.us>

AC_PREREQ(2.12)
AC_INIT(userdefs.h)
AC_CONFIG_HEADER(lynx_cfg.h:config.hin)

AC_PREFIX_DEFAULT(/usr/local)
AC_CANONICAL_HOST

dnl --------------------------------------------------------------------------
dnl Checks for location of programs
dnl --------------------------------------------------------------------------

AC_PROG_CC
AC_PROG_CPP
AC_PROG_RANLIB
AC_PROG_MAKE_SET
CF_MAKE_INCLUDE
AC_PROG_INSTALL

AC_MSG_CHECKING(if you want full utility pathnames)
CF_ARG_DISABLE(full-paths,
	[  --disable-full-paths    control whether full utility pathnames are used],
	[with_full_paths=no],
	[with_full_paths=yes])
AC_MSG_RESULT($with_full_paths)

CF_DEFINE_PROG(system mailer, SYSTEM_MAIL,
	/usr/mmdf/bin/submit \
	/usr/sbin/sendmail \
	/usr/lib/sendmail  \
	)
CF_SYSTEM_MAIL_FLAGS

CF_PATH_PROG(CHMOD,	chmod)
CF_PATH_PROG(COMPRESS,	compress)
CF_PATH_PROG(COPY,	cp)
CF_PATH_PROG(GZIP,	gzip)
CF_PATH_PROG(INSTALL,	install)
CF_PATH_PROG(MKDIR,	mkdir)
CF_PATH_PROG(MV,	mv)
CF_PATH_PROG(RM,	rm)
CF_PATH_PROG(TAR,	tar)
CF_PATH_PROG(TOUCH,	touch)
CF_PATH_PROG(UNCOMPRESS,gunzip)
CF_PATH_PROG(UNZIP,	unzip)
CF_PATH_PROG(UUDECODE,	uudecode)
CF_PATH_PROG(ZCAT,	zcat)
CF_PATH_PROG(ZIP,	zip)

dnl --------------------------------------------------------------------------
dnl Checks for compiler & standard-library characteristics
dnl --------------------------------------------------------------------------

dnl If we're able to run this script, this is true!
AC_DEFINE(UNIX)

AC_C_CONST

case $host_os in
linux*)
	CFLAGS="$CFLAGS -DLINUX" 
	;;
ultrix*)
	# Increase the maximum size of functions that will be optimized.
	test -z "$GCC" && CFLAGS="$CFLAGS -O -Olimit 600"
	CFLAGS="$CFLAGS -DULTRIX" 
	;;
esac

dnl --------------------------------------------------------------------------
dnl Checks for library configuration (added right-to-left)
dnl --------------------------------------------------------------------------

CF_NETLIBS

AC_MSG_CHECKING(for screen type)
AC_CACHE_VAL(cf_cv_screen,[
AC_ARG_WITH(screen,
[  --with-screen=XXX       select screen type
                          (XXX is curses (default), ncurses or slang)],
	[
case $withval in
curses|ncurses|slang)
	cf_cv_screen=$withval
	;;
*)	AC_ERROR(Unexpected value)
	;;
esac],
	[cf_cv_screen=curses])])
AC_MSG_RESULT($cf_cv_screen)

case $cf_cv_screen in
curses)
	CF_CURSES_LIBS
	CF_CURS_PERFORMANCE
	;;
ncurses)
	CF_NCURSES_CPPFLAGS
	CF_NCURSES_LIBS
	;;
slang)
	CF_TERMCAP_LIBS
	CF_SLANG_CPPFLAGS
	CF_SLANG_LIBS
	;;
esac

dnl --------------------------------------------------------------------------
dnl Checks for standard headers
dnl --------------------------------------------------------------------------

AC_HEADER_STDC
AC_HEADER_TIME
AC_HEADER_DIRENT
AC_CHECK_HEADERS( \
	fcntl.h \
	limits.h \
	string.h \
	sys/fcntl.h \
	sys/filio.h \
	sys/ioctl.h \
	sys/time.h \
	termio.h \
	termios.h \
	unistd.h \
)
CF_TERMIO_AND_TERMIOS

dnl --------------------------------------------------------------------------
dnl Checks for library units
dnl --------------------------------------------------------------------------

AC_FUNC_VFORK
CF_REMOVE_BROKEN
AC_CHECK_FUNCS( \
	cuserid \
	getcwd \
	putenv \
)

dnl --------------------------------------------------------------------------
dnl Checks for external-data
dnl --------------------------------------------------------------------------

CF_ERRNO
CF_SYS_ERRLIST
CF_LOCALE
CF_UTMP

### These tests must be run after establishing the curses library.
if test $cf_cv_screen != slang ; then
	CF_ALT_CHAR_SET
	CF_FANCY_CURSES
	CF_COLOR_CURSES
	CF_SIZECHANGE
	CF_TTYTYPE
	AC_CHECK_FUNCS( \
		cbreak \
		keypad \
	)
fi

dnl --------------------------------------------------------------------------
dnl Miscellaneous options that don't need to test system features
dnl --------------------------------------------------------------------------

AC_MSG_CHECKING(if parent-directory references are permitted)
AC_CACHE_VAL(cf_cv_parent_dir,[
cf_cv_parent_dir=yes
AC_ARG_ENABLE(parent-dir-refs,
[  --disable-parent-dir-refs
                          disable \"Up-to\" parent-links in directory listings],
	[test "$enableval" = no && cf_cv_parent_dir=no])
])
AC_MSG_RESULT($cf_cv_parent_dir)
test $cf_cv_parent_dir = no && AC_DEFINE(NO_PARENT_DIR_REFERENCE)

dnl --------------------------------------------------------------------------
dnl Debug/development/test
dnl --------------------------------------------------------------------------

AC_MSG_CHECKING(if you want to see long compiling messages)
CF_ARG_DISABLE(echo,
	[  --disable-echo          develop: display \"compiling\" commands],
	[SHOW_CC='	@echo compiling $@'
    ECHO_CC='@'],
	[SHOW_CC='# compiling'
    ECHO_CC=''])
AC_MSG_RESULT($enableval)
AC_SUBST(SHOW_CC)
AC_SUBST(ECHO_CC)

AC_MSG_CHECKING(if you want to check memory-leaks)
CF_ARG_ENABLE(find-leaks,
	[  --enable-find-leaks     develop: logic for testing memory leaks],
	[with_leak_checks=yes],
	[with_leak_checks=no])
AC_MSG_RESULT($with_leak_checks)
test "$with_leak_checks" = "yes" && AC_DEFINE(LY_FIND_LEAKS)

AC_MSG_CHECKING(if you want to enable debug-code)
CF_ARG_ENABLE(debug,
	[  --enable-debug          develop: logic for testing memory leaks],
	[with_debug=yes],
	[with_debug=no])
AC_MSG_RESULT($with_debug)
test "$with_debug" = "yes" && AC_DEFINE(DEBUG)

if test -n "$GCC"
then
AC_MSG_CHECKING(if you want to turn on gcc warnings)
CF_ARG_ENABLE(warnings,
	[  --enable-warnings       develop: GCC compiler warnings],
	[with_warnings=yes],
	[with_warnings=no])
AC_MSG_RESULT($with_warnings)
if test "$with_warnings" = "yes"
then
	CF_GCC_WARNINGS
fi
fi

### Finally, build config.h and the makefiles
CFLAGS="$CFLAGS $EXTRA_CFLAGS"
AC_OUTPUT(
	makefile \
	WWW/Library/unix/makefile \
	src/makefile \
	src/chrtrans/makefile \
	)