Mercurial > hg > early-roguelike
annotate rogue5/acinclude.m4 @ 110:5f51f7d9805f
arogue5: fix some save/restore-related crashes.
The save/restore code took the pointer intended as an argument for the
doctor() daemon and wrote it to the savefile as an int. I don't know
why it took so long to fail horribly. The problem has been avoided by
replacing the value with &player when restoring. That seems to be the
only argument ever actually used.
The code also writes only four bytes for an unsigned long; if
sizeof(long) == 8, it casts to unsigned int first. It failed to do the
cast when reading back, with the result that four bytes were read and
the other half of the number was effectively uninitialized.
It apparently works now, but the save/restore code ought still to be
regarded as decidedly unfortunate.
author | John "Elwin" Edwards |
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date | Mon, 06 Jan 2014 15:57:17 -0500 |
parents | f502bf60e6e4 |
children | 029c1f5c5588 |
rev | line source |
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33
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1 AC_DEFUN([MP_WITH_CURSES], |
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2 [AC_ARG_WITH(ncurses, [ --with-ncurses Force the use of ncurses over curses],,) |
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3 mp_save_LIBS="$LIBS" |
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4 CURSES_LIB="" |
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5 if test "$with_ncurses" != yes |
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6 then |
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7 AC_CACHE_CHECK([for working curses], mp_cv_curses, |
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8 [LIBS="$LIBS -lcurses" |
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9 AC_TRY_LINK( |
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10 [#include <curses.h>], |
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11 [chtype a; int b=A_STANDOUT, c=KEY_LEFT; initscr(); ], |
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12 mp_cv_curses=yes, mp_cv_curses=no)]) |
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13 if test "$mp_cv_curses" = yes |
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14 then |
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15 AC_DEFINE(HAVE_CURSES_H, 1, [Define to 1 if libcurses is requested]) |
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16 #AC_DEFINE(HAVE_CURSES_H) |
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17 CURSES_LIB="-lcurses" |
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18 fi |
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19 fi |
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20 if test ! "$CURSES_LIB" |
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21 then |
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22 AC_CACHE_CHECK([for working ncurses], mp_cv_ncurses, |
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23 [LIBS="$mp_save_LIBS -lncurses" |
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24 AC_TRY_LINK( |
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25 [#include <ncurses.h>], |
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26 [chtype a; int b=A_STANDOUT, c=KEY_LEFT; initscr(); ], |
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27 mp_cv_ncurses=yes, mp_cv_ncurses=no)]) |
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28 if test "$mp_cv_ncurses" = yes |
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29 then |
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30 AC_DEFINE(HAVE_NCURSES_H, 1, [Define to 1 if libncurses is requested]) |
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31 CURSES_LIB="-lncurses" |
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32 fi |
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33 fi |
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34 if test ! "$CURSES_LIB" |
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35 then |
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36 AC_CACHE_CHECK([for working pdcurses], mp_cv_pdcurses, |
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37 [LIBS="$mp_save_LIBS -lpdcurses" |
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38 AC_TRY_LINK( |
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39 [#include <curses.h>], |
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40 [chtype a; int b=A_STANDOUT, c=KEY_LEFT; initscr(); ], |
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41 mp_cv_pdcurses=yes, mp_cv_pdcurses=no)]) |
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42 if test "$mp_cv_pdcurses" = yes |
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43 then |
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44 AC_DEFINE(HAVE_CURSES_H, 1, [Define to 1 if libcurses is requested]) |
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45 CURSES_LIB="-lpdcurses" |
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46 fi |
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47 fi |
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48 if test ! "$CURSES_LIB" |
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49 then |
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50 AC_CACHE_CHECK([for working pdcur], mp_cv_pdcur, |
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51 [LIBS="$mp_save_LIBS -lpdcur" |
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52 AC_TRY_LINK( |
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53 [#include <curses.h>], |
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54 [chtype a; int b=A_STANDOUT, c=KEY_LEFT; initscr(); ], |
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55 mp_cv_pdcur=yes, mp_cv_pdcur=no)]) |
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56 if test "$mp_cv_pdcur" = yes |
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57 then |
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58 AC_DEFINE(HAVE_CURSES_H, 1, [Define to 1 if libcurses is requested]) |
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59 CURSES_LIB="-lpdcur" |
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60 fi |
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61 fi |
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62 if test ! "$CURSES_LIB" |
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63 then |
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64 AC_CACHE_CHECK([for working peer pdcurses], mp_cv_lpdcurses, |
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65 [LIBS="$mp_save_LIBS ../pdcurses/pdcurses.a" |
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66 AC_TRY_LINK( |
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67 [#include "../pdcurses/curses.h"], |
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68 [chtype a; int b=A_STANDOUT, c=KEY_LEFT; initscr(); ], |
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69 mp_cv_lpdcurses=yes, mp_cv_lpdcurses=no)]) |
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70 if test "$mp_cv_lpdcurses" = yes |
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71 then |
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72 AC_DEFINE(HAVE_CURSES_H, 1, [Define to 1 if libcurses is requested]) |
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73 CURSES_LIB="../pdcurses/pdcurses.a" |
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74 RF_ADDTO(CPPFLAGS,"-I../pdcurses") |
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75 fi |
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76 fi |
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77 AC_CACHE_CHECK([for ESCDELAY variable], |
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78 [mc_cv_ncurses_escdelay], |
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79 [AC_TRY_LINK([], [ |
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80 extern int ESCDELAY; |
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81 ESCDELAY = 0; |
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82 ], |
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83 [mc_cv_ncurses_escdelay=yes], |
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84 [mc_cv_ncurses_escdelay=no]) |
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85 ]) |
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86 if test "$mc_cv_ncurses_escdelay" = yes; then |
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87 AC_DEFINE(HAVE_ESCDELAY, 1, |
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88 [Define if ncurses has ESCDELAY variable]) |
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89 fi |
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90 if test ! "$CURSES_LIB" ; then |
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91 LIBS="$mp_save_LIBS" |
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92 fi |
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93 ])dnl |
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94 |
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95 dnl |
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96 dnl RF_ADDTO(variable, value) |
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97 dnl |
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98 dnl Add value to variable |
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99 dnl |
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100 AC_DEFUN([RF_ADDTO],[ |
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101 if test "x$$1" = "x"; then |
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102 test "x$silent" != "xyes" && echo " setting $1 to \"$2\"" |
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103 $1="$2" |