3 dnl Configuration script for Catacomb
5 dnl (c) 2013 Straylight/Edgeware
8 dnl----- Licensing notice ---------------------------------------------------
10 dnl This file is part of Catacomb.
12 dnl Catacomb is free software; you can redistribute it and/or modify
13 dnl it under the terms of the GNU Library General Public License as
14 dnl published by the Free Software Foundation; either version 2 of the
15 dnl License, or (at your option) any later version.
17 dnl Catacomb is distributed in the hope that it will be useful,
18 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
19 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 dnl GNU Library General Public License for more details.
22 dnl You should have received a copy of the GNU Library General Public
23 dnl License along with Catacomb; if not, write to the Free
24 dnl Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
25 dnl MA 02111-1307, USA.
27 dnl--------------------------------------------------------------------------
31 AC_INIT([catacomb], AUTO_VERSION, [mdw@distorted.org.uk])
32 AC_CONFIG_SRCDIR([catacomb.pc.in])
33 AC_CONFIG_AUX_DIR([config])
34 AM_INIT_AUTOMAKE([foreign parallel-tests])
40 mdw_LIBTOOL_VERSION_INFO
46 dnl--------------------------------------------------------------------------
47 dnl C programming environment.
49 dnl Find out if we're cross-compiling.
50 AM_CONDITIONAL([CROSS_COMPILING], [test "$cross_compiling" = yes])
52 dnl Various standard types.
53 AC_CHECK_TYPE([pid_t], [int])
55 AC_CHECK_TYPE([ssize_t], [int])
57 dnl The maths library.
59 AC_SEARCH_LIBS([log], [m])
60 AC_SEARCH_LIBS([sqrt], [m])
61 AC_SUBST([CATACOMB_LIBS], [$LIBS])
64 dnl Find out whether very long integer types are available.
65 AC_CHECK_HEADERS([stdint.h])
66 AC_SUBST([have_stdint_h])
69 dnl Find the bit lengths of the obvious integer types. This will be useful
70 dnl when deciding on a representation for multiprecision integers.
71 type_bits="" type_bits_sep=""
72 AC_DEFUN([catacomb_UINT_BITS],
73 [mdw_UINT_BITS([$2], [$1])
74 type_bits="$type_bits$type_bits_sep('$1', $[]$1_bits)"
76 catacomb_UINT_BITS([uchar], [unsigned char])
77 catacomb_UINT_BITS([ushort], [unsigned short])
78 catacomb_UINT_BITS([uint], [unsigned int])
79 catacomb_UINT_BITS([ulong], [unsigned long])
80 if test "$ac_cv_c_long_long" = "yes"; then
81 catacomb_UINT_BITS([ullong], [unsigned long long])
83 if test "$ac_cv_header_stdint_h" = "yes"; then
84 catacomb_UINT_BITS([uintmax], [uintmax_t])
88 dnl Determine the limits of common C integer types.
89 limits="" limits_sep=""
90 AC_DEFUN([catacomb_COMPILE_TIME_CONSTANT],
96 AC_CACHE_CHECK([compile-time value of $2], [mdw_cv_constant_$3],
97 [mdw_PROBE_CONSTANT([mdw_cv_constant_$3], [$2], [$4])])
98 $1=$mdw_cv_constant_$3
101 AC_DEFUN([catacomb_LIMIT],
102 [catacomb_COMPILE_TIME_CONSTANT([lo], [$2], [$1_min],
104 #include <stddef.h>])
105 catacomb_COMPILE_TIME_CONSTANT([hi], [$3], [$1_max],
107 #include <stddef.h>])
108 limits="$limits$limits_sep('$1', $lo, $hi)" limits_sep=", "])
109 catacomb_LIMIT([SCHAR], [SCHAR_MIN], [SCHAR_MAX])
110 catacomb_LIMIT([CHAR], [CHAR_MIN], [CHAR_MAX])
111 catacomb_LIMIT([UCHAR], [=0], [UCHAR_MAX])
112 catacomb_LIMIT([UINT8], [=0], [=0xff])
113 catacomb_LIMIT([SHRT], [SHRT_MIN], [SHRT_MAX])
114 catacomb_LIMIT([USHRT], [=0], [USHRT_MAX])
115 catacomb_LIMIT([UINT16], [=0], [=0xffff])
116 catacomb_LIMIT([INT], [INT_MIN], [INT_MAX])
117 catacomb_LIMIT([UINT], [=0], [UINT_MAX])
118 catacomb_LIMIT([LONG], [LONG_MIN], [LONG_MAX])
119 catacomb_LIMIT([ULONG], [=0], [ULONG_MAX])
120 catacomb_LIMIT([UINT32], [=0], [=0xffffffff])
121 if test "$ac_cv_c_long_long" = "yes"; then
122 catacomb_LIMIT([LLONG], [LLONG_MIN], [LLONG_MAX])
123 catacomb_LIMIT([ULLONG], [=0], [ULLONG_MAX])
125 catacomb_LIMIT([SIZET], [=0], [~(size_t)0])
128 dnl Functions used for noise-gathering.
129 AC_CHECK_FUNCS([setgroups])
130 AC_CACHE_CHECK([whether the freewheel noise generator will work],
131 [catacomb_cv_freewheel],
134 #include <sys/time.h>],
135 [struct itimerval itv = { { 0, 0 }, { 0, 5000 } };
137 setitimer(ITIMER_REAL, &itv, 0);
139 [catacomb_cv_freewheel=yes],
140 [catacomb_cv_freewheel=no])])
141 case $catacomb_cv_freewheel in
143 AC_DEFINE([USE_FREEWHEEL], [1],
144 [Define if you want to use the freewheel noise generator.])
148 dnl Support for the passphrase pixie.
150 AC_SEARCH_LIBS([socket], [socket])
151 AC_SUBST([PIXIE_LIBS], [$LIBS])
154 dnl Memory locking support.
155 AC_CHECK_FUNCS([mlock])
157 dnl Necessary support libraries.
158 PKG_CHECK_MODULES([mLib], [mLib >= 2.0.4])
159 AM_CFLAGS="$AM_CFLAGS $mLib_CFLAGS"
161 dnl--------------------------------------------------------------------------
164 dnl Make sure we have a suitable version.
165 AM_PATH_PYTHON([2.5])
167 dnl--------------------------------------------------------------------------
168 dnl Special debugging options.
171 [AS_HELP_STRING([--enable-mpw], [force small-width mp digits])],
172 [case "$enableval" in
174 AC_DEFINE([FORCE_MPW_SHORT], [1],
175 [Define to force small-width mp digits.])
178 AC_DEFINE([FORCE_MPW_CUSSID], [1],
179 [Define to force strange-width mp digits.])
183 dnl--------------------------------------------------------------------------
186 AC_CONFIG_HEADER([config/config.h])
200 dnl----- That's all, folks --------------------------------------------------