view srogue/configure.ac @ 280:70aa5808c782

Fix potential segfaults at restore related to ctime(). In some games, restore() passes the result of ctime() to mvprintw() or some other variadic message-formatting function. If ctime() has not been declared properly, its return type is inferred to be int instead of char *. This does not cause a warning because the compiler does not know the correct type of variadic arguments. On platforms where ints and pointers are not the same size, this can, probably depending on alignment, result in a segfault that is not easy to trace. Including time.h fixes the problem. Some games manually declared ctime() and avoided the bug. These declarations have also been replaced with the include.
author John "Elwin" Edwards
date Fri, 15 Sep 2017 20:51:10 -0400
parents c222f9d56776
children 0b3d1b38998f
line wrap: on
line source

#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ(2.56)
AC_INIT([SRogue],[9.0], [yendor@rogueforge.net])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES([Makefile])

# Checks for programs.
AC_PROG_CC
# Checks for libraries.
MP_WITH_CURSES
# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([arpa/inet.h pwd.h errno.h fcntl.h limits.h nlist.h stdlib.h string.h sys/ioctl.h termios.h unistd.h term.h ncurses/term.h process.h])

# Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_UID_T
AC_TYPE_SIZE_T
AC_STRUCT_TM
# Checks for library functions.
AC_FUNC_FORK
AC_PROG_GCC_TRADITIONAL
AC_TYPE_SIGNAL
AC_FUNC_STAT
AC_FUNC_VPRINTF
AC_CHECK_FUNCS([erasechar killchar alarm getpass memset setenv strchr nlist _spawnl spawnl getpwuid loadav getloadavg strerror setgid setuid getuid getgid lrand48 random srand48 srandom])
AC_PROG_INSTALL

AC_CHECK_PROG([NROFF], [nroff], [nroff],)
AC_CHECK_PROG([GROFF], [groff], [groff],)
AC_CHECK_PROG([COLCRT], [colcrt], [colcrt],)
AC_CHECK_PROG([TBL], [tbl], [tbl],)

AC_ARG_WITH(program-name, AC_HELP_STRING([--with-program-name=NAME],[alternate executable name]),[progname="$withval" ], [progname="srogue"] )
PROGRAM=$progname
AC_SUBST(PROGRAM)

AC_ARG_ENABLE(setgid, AC_HELP_STRING([--enable-setgid=NAME],[install executable as setgid with group ownership of NAME @<:@default=no@:>@]),[],[])
AC_MSG_CHECKING([if using setgid execute bit])
if test "x$enable_setgid" = "xno" ; then
GROUPOWNER=
elif test "x$enable_setgid" = "xyes" ; then
GROUPOWNER=games
elif test "x$enable_setgid" = "x" ; then
GROUPOWNER=
else
GROUPOWNER=$enable_setgid
fi

if test "x$GROUPOWNER" != "x" ; then
AC_DEFINE_UNQUOTED([GROUPOWNER],[$GROUPOWNER], [Define to group owner of setgid executable])
AC_MSG_RESULT([$GROUPOWNER])
else
AC_MSG_RESULT([no])
fi

AC_SUBST(GROUPOWNER)

AC_ARG_ENABLE([scorefile],[AC_HELP_STRING([--enable-scorefile=SCOREFILE], [enable scoreboard with given filename])],[],[])
AC_MSG_CHECKING([for scoreboard file])
if test "x$enable_scorefile" = "xno" ; then
SCOREFILE=
elif test "x$enable_scorefile" = "xyes" ;  then
SCOREFILE=$progname.scr
elif test "x$enable_scorefile" = "x" ; then
SCOREFILE=$progname.scr
else
SCOREFILE=$enable_scorefile
fi

if test "x$SCOREFILE" != "x" ; then
AC_DEFINE_UNQUOTED([SCOREFILE], ["$SCOREFILE"], [Define to file to use for scoreboard])
AC_MSG_RESULT([$SCOREFILE])
else
AC_MSG_RESULT([disabled])
fi

AC_SUBST(SCOREFILE)

AC_ARG_ENABLE([logfile],[AC_HELP_STRING([--enable-logfile=LOGFILE], [enable logfile with given filename])],[],[])
AC_MSG_CHECKING([for log file])
if test "x$enable_logfile" = "xno" ; then
LOGFILE=
elif test "x$enable_logfile" = "xyes" ;  then
LOGFILE=$progname.log
elif test "x$enable_logfile" = "x" ; then
LOGFILE=$progname.log
else
LOGFILE=$enable_logfile
fi

if test "x$LOGFILE" != "x" ; then
AC_DEFINE_UNQUOTED([LOGFILE], ["$LOGFILE"], [Define to file to use for log])
AC_MSG_RESULT([$LOGFILE])
else
AC_MSG_RESULT([disabled])
fi

AC_SUBST(LOGFILE)

AC_ARG_ENABLE([savedir],[AC_HELP_STRING([--enable-savedir=SAVEDIR], [enable systemwide location for saved games])],[],[enable_savedir="no"])
AC_MSG_CHECKING([for save directory])
if test "x$enable_savedir" = "xno" ; then
SAVEDIR=
elif test "x$enable_savedir" = "xyes" -o "x$enable_savedir" = "x"; then
  if test "x$GROUPOWNER" != "x"; then
  SAVEDIR="/var/local/games/roguelike/${progname}save/"
  else
  SAVEDIR="$progname/"
  fi
else
SAVEDIR="$enable_savedir"
fi

if test "x$SAVEDIR" != "x" ; then
AC_DEFINE_UNQUOTED([SAVEDIR], ["$SAVEDIR"], [Define to systemwide directory for storing saved games])
AC_MSG_RESULT([$SAVEDIR])
else
AC_MSG_RESULT([disabled])
fi

AC_SUBST(SAVEDIR)

AC_ARG_ENABLE([wizardmode],[AC_HELP_STRING([--enable-wizardmode], [enable availability of wizard mode @<:@default=no@:>@])],[],[])
AC_MSG_CHECKING([if wizard mode is enabled])
if test "x$enable_wizardmode" = "xno" ; then
AC_MSG_RESULT([no])
elif test "x$enable_wizardmode" = "x" ; then
AC_MSG_RESULT([no])
else
AC_DEFINE([WIZARD], [], [Define to include wizard mode])
AC_MSG_RESULT([yes])
fi

AC_MSG_CHECKING([whether to docdir is defined])
if test "x$docdir" = "x" ; then
AC_MSG_RESULT([docdir undefined])
docdir=\${datadir}/doc/\${PACKAGE_TARNAME}
AC_SUBST(docdir)
else
AC_MSG_RESULT([docdir defined])
fi

AC_OUTPUT