dnl Use autoconf 2.53
dnl (Things tend to break across versions, they're neither upwards nor
dnl downward compatible. Blame GNU.)

AC_INIT(dgamelaunch, [1.4.6])
AC_PREREQ(2.53)

AC_CONFIG_HEADER(config.h)

AC_PROG_CC(cc gcc)
AC_STDC_HEADERS
AC_PROG_LEX

LIBS="$LIBS $LEXLIB"

AC_PROG_YACC

case "$(uname -s)" in
  Linux | *BSD)
    LIBS="$LIBS -lutil -lcrypt"
    AC_DEFINE(NOSTREAMS, 1, [Don't use SVR4 streams support in ttyrec.])
  ;;
esac

if test "$ac_cv_c_compiler_gnu" = yes; then
  CFLAGS="$CFLAGS -Wall -Wno-unused"
  MKDEP="$CC -MM"
  MKDEP_DIRECT="> .depend"
else
  AC_CHECK_PROG(MKDEP, mkdep, mkdep,)
  if test -z "$MKDEP"; then
    AC_CHECK_PROG(MKDEP, makedepend, makedepend,)
    if test -n "$MKDEP"; then
      MKDEP=":> .depend; $MKDEP -f.depend"
      MKDEP_DIRECT=">/dev/null 2>&1" # noisy prick of a program
    else
      MKDEP=:
    fi
  fi
fi

AC_SUBST(MKDEP)
AC_SUBST(MKDEP_DIRECT)

AC_PROG_INSTALL
AC_SEARCH_LIBS(initscr, [curses ncurses])

AC_ARG_ENABLE(enable-virus,
[AC_HELP_STRING([--enable-virus], [Use the 'virus' vi clone instead of the friendly ee editor.])],
[EDITOR=virus.c], [EDITOR=virus.c])

AC_SUBST(EDITOR)

AC_ARG_WITH(config-file,
[AC_HELP_STRING([--with-config-file=PATH], [Define the path to the default configuration file.])],
[configfile=$withval], [configfile="/etc/dgamelaunch.conf"])

AC_DEFINE_UNQUOTED(DEFCONFIG, "$configfile", [Path to the default config file.])

AC_CHECK_FUNCS([openpty setenv])
AC_CONFIG_FILES(Makefile)
AC_OUTPUT