git.distorted.org.uk Git - u/mdw/catacomb/blob - configure.in

   1 dnl -*-m4-*-
   2 dnl
   3 dnl $Id$
   4 dnl
   5 dnl Autoconfiguration for Catacomb
   6 dnl
   7 dnl (c) 1999 Straylight/Edgeware
   8 dnl
   9
  10 dnl ----- Licensing notice --------------------------------------------------
  11 dnl
  12 dnl This file is part of Catacomb.
  13 dnl
  14 dnl Catacomb is free software; you can redistribute it and/or modify
  15 dnl it under the terms of the GNU Library General Public License as
  16 dnl published by the Free Software Foundation; either version 2 of the
  17 dnl License, or (at your option) any later version.
  18 dnl
  19 dnl Catacomb is distributed in the hope that it will be useful,
  20 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 dnl GNU Library General Public License for more details.
  23 dnl
  24 dnl You should have received a copy of the GNU Library General Public
  25 dnl License along with Catacomb; if not, write to the Free
  26 dnl Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  27 dnl MA 02111-1307, USA.
  28
  29 dnl --- Boring boilerplate ---
  30
  31 mdw_AUTO_VERSION
  32 AC_INIT(catacomb, AUTO_VERSION, mdw@distorted.org.uk)
  33 mdw_SILENT_RULES
  34 AC_CONFIG_SRCDIR(blkc.h)
  35 AC_CONFIG_AUX_DIR(.)
  36 AM_CONFIG_HEADER(config.h)
  37 AM_INIT_AUTOMAKE(foreign)
  38
  39 dnl --- Make sure I can compile and build libraries ---
  40
  41 AC_PROG_CC
  42 AM_PROG_LIBTOOL
  43 AX_CFLAGS_WARN_ALL
  44 mdw_LIBTOOL_VERSION_INFO
  45
  46 AC_PROG_YACC
  47
  48 dnl --- Actually, I assume these exist anyway ---
  49
  50 AC_CHECK_HEADERS(unistd.h)
  51 AC_HEADER_STDC
  52
  53 dnl --- Check for various important system types ---
  54
  55 AC_CHECK_TYPE(pid_t, int)
  56 AC_CHECK_TYPE(size_t, unsigned)
  57 AC_TYPE_UID_T
  58 AC_CHECK_TYPE(time_t, long)
  59 AC_CHECK_TYPE(ssize_t, int)
  60
  61 dnl --- The maths library, for Maurer's test ---
  62
  63 OLIBS=$LIBS
  64 AC_SEARCH_LIBS(log, m)
  65 AC_SEARCH_LIBS(sqrt, m)
  66 AC_SUBST([CATACOMB_LIBS], [$LIBS]) LIBS=$OLIBS
  67
  68 dnl --- Functions used for noise-gathering ---
  69
  70 AC_CHECK_FUNCS(setgroups)
  71
  72 AC_CACHE_CHECK([whether the freewheel noise generator will work],
  73 [catacomb_cv_freewheel],
  74 [AC_TRY_LINK([
  75 #include <setjmp.h>
  76 #include <sys/time.h>
  77 ],
  78 [struct itimerval itv = { { 0, 0 }, { 0, 5000 } };
  79 jmp_buf j;
  80 setitimer(ITIMER_REAL, &itv, 0);
  81 sigsetjmp(j, 1);],
  82 [catacomb_cv_freewheel=yes],
  83 [catacomb_cv_freewheel=no])])
  84 if test "$catacomb_cv_freewheel" = "yes"; then
  85   AC_DEFINE([USE_FREEWHEEL], [1],
  86             [Define if you want to use the freewheel noise generator.])
  87 fi
  88
  89 dnl --- Support for the passphrase pixie ---
  90
  91 OLIBS=$LIBS
  92 AC_SEARCH_LIBS(socket, socket)
  93 AC_SUBST([PIXIE_LIBS], [$LIBS]) LIBS=$OLIBS
  94 AC_CHECK_FUNCS(mlock)
  95
  96 dnl --- Debugging things ---
  97
  98 AC_ARG_ENABLE([mpw],
  99               [AS_HELP_STRING([--enable-mpw],
 100                               [force small-width mp digits])],
 101               [case "$enableval" in
 102                  y*|t*|short)
 103                    AC_DEFINE([FORCE_MPW_SHORT], [1],
 104                              [Define to force small-width mp digits.])
 105                    ;;
 106                  cussid)
 107                    AC_DEFINE([FORCE_MPW_CUSSID], [1],
 108                              [Define to force strange-width mp digits.])
 109                    ;;
 110                esac])
 111
 112 dnl --- Done ---
 113
 114 PKG_CHECK_MODULES(mLib, mLib >= 2.0.4)
 115 CFLAGS="$CFLAGS $mLib_CFLAGS"
 116 LIBS="$LIBS $mLib_LIBS"
 117 AC_OUTPUT(Makefile)
 118
 119 dnl ----- That's all, folks -------------------------------------------------