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1 | dnl -*-autoconf-*- |
2 | dnl | |
3 | dnl Configuration script for Catacomb | |
4 | dnl | |
5 | dnl (c) 2013 Straylight/Edgeware | |
6 | dnl | |
7 | ||
8 | dnl----- Licensing notice --------------------------------------------------- | |
9 | dnl | |
10 | dnl This file is part of Catacomb. | |
11 | dnl | |
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. | |
16 | dnl | |
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. | |
21 | dnl | |
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. | |
26 | ||
27 | dnl-------------------------------------------------------------------------- | |
28 | dnl Initialization. | |
29 | ||
30 | mdw_AUTO_VERSION | |
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]) | |
08e2be29 | 35 | AC_CANONICAL_HOST |
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36 | mdw_SILENT_RULES |
37 | ||
38 | AC_PROG_CC | |
39 | AX_CFLAGS_WARN_ALL | |
40 | AM_PROG_LIBTOOL | |
41 | mdw_LIBTOOL_VERSION_INFO | |
42 | ||
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43 | AM_PROG_AS |
44 | ||
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45 | AC_PROG_YACC |
46 | ||
47 | AC_SUBST(AM_CFLAGS) | |
48 | ||
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49 | dnl-------------------------------------------------------------------------- |
50 | dnl Host-specific configuration. | |
51 | ||
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52 | AC_MSG_CHECKING([CPU family and ABI]) |
53 | ||
54 | dnl The table of CPU families and ABIs which we might support. Support is | |
55 | dnl not uniform: each dispatched function might or might not have an | |
56 | dnl implementation for any particular CPU/ABI combination. | |
08e2be29 | 57 | AC_DEFUN([catacomb_CPU_FAMILIES], |
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58 | [$1([i[[3-6]]86,cygwin], [x86], [win]) |
59 | $1([i[[3-6]]86,*], [x86], [sysv]) | |
60 | $1([x86_64,cygwin], [amd64], [win]) | |
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61 | $1([x86_64,*], [amd64], [sysv]) |
62 | $1([armv*,*-gnueabi | armv*,*-gnueabihf], [armel], [gnueabi])]) | |
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63 | |
64 | dnl A utility to clear the `seen' flags, used so as to process each CPU or | |
65 | dnl ABI once. | |
66 | m4_define([catacomb_CLEAR_FLAGS], | |
67 | [m4_ifdef([catacomb_seen_cpu/$2], | |
68 | [m4_undefine([catacomb_seen_cpu/$2])])dnl | |
69 | m4_ifdef([catacomb_seen_abi/$3], | |
70 | [m4_undefine([catacomb_seen_abi/$3])])]) | |
08e2be29 | 71 | |
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72 | dnl Identify the current host. |
73 | case $host_cpu,$host_os in | |
08e2be29 | 74 | m4_define([catacomb_CPU_CASE], |
ff1f7e22 | 75 | [$1) CPUFAM=$2 ABI=$3 ;; |
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76 | ]) |
77 | catacomb_CPU_FAMILIES([catacomb_CPU_CASE]) | |
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78 | *) CPUFAM=nil ABI=nil ;; |
79 | esac | |
80 | ||
81 | dnl Figure out the current CPU. | |
82 | catacomb_CPU_FAMILIES([catacomb_CLEAR_FLAGS]) | |
83 | case $CPUFAM in | |
84 | m4_define([catacomb_DEFINE_CPU], | |
85 | [m4_ifdef([catacomb_seen_cpu/$2], [], | |
86 | [$2) | |
87 | AC_DEFINE([CPUFAM_]m4_translit([$2], [a-z], [A-Z]), [1], | |
88 | [Define if host CPU family is \`$2\'.]) | |
89 | ;;m4_define([catacomb_seen_cpu/$2], [t])])]) | |
90 | catacomb_CPU_FAMILIES([catacomb_DEFINE_CPU]) | |
91 | nil) ;; | |
92 | *) AC_MSG_ERROR([BUG: unexpected cpufam \`$CPUFAM']) ;; | |
93 | esac | |
94 | AC_SUBST([CPUFAM]) | |
95 | ||
96 | dnl Figure out the current ABI. | |
97 | catacomb_CPU_FAMILIES([catacomb_CLEAR_FLAGS]) | |
98 | case $ABI in | |
99 | m4_define([catacomb_DEFINE_ABI], | |
100 | [m4_ifdef([catacomb_seen_abi/$3], [], | |
101 | [$3) | |
102 | AC_DEFINE([ABI_]m4_translit([$3], [a-z], [A-Z]), [1], | |
103 | [Define if host ABI variant is \`$3\'.]) | |
104 | ;;m4_define([catacomb_seen_abi/$3], [t])])]) | |
105 | catacomb_CPU_FAMILIES([catacomb_DEFINE_ABI]) | |
106 | nil) ;; | |
107 | *) AC_MSG_ERROR([BUG: unexpected ABI \`$ABI']) ;; | |
108 | esac | |
109 | AC_SUBST([ABI]) | |
110 | ||
111 | dnl Establish Automake conditions for things. | |
112 | catacomb_CPU_FAMILIES([catacomb_CLEAR_FLAGS]) | |
113 | m4_define([catacomb_COND_CPU], | |
114 | [m4_define([_CPU], m4_translit([$2], [a-z], [A-Z])) | |
115 | m4_define([_ABI], m4_translit([$3], [a-z], [A-Z])) | |
116 | AM_CONDITIONAL([CPUABI_]_CPU[_]_ABI, [test x$CPUFAM/$ABI = x$2/$3]) | |
117 | m4_ifdef([catacomb_seen_cpu/$2], [], | |
118 | [AM_CONDITIONAL([CPUFAM_]_CPU, [test x$CPUFAM = x$2])dnl | |
119 | m4_define([catacomb_seen_cpu/$2], [t])]) | |
120 | m4_ifdef([catacomb_seen_abi/$3], [], | |
121 | [AM_CONDITIONAL([ABI_]_ABI, [test x$ABI = x$3])dnl | |
122 | m4_define([catacomb_seen_abi/$3], [t])])]) | |
123 | catacomb_CPU_FAMILIES([catacomb_COND_CPU]) | |
124 | AM_CONDITIONAL([KNOWN_CPUFAM], [test x$CPUFAM != xnil]) | |
125 | ||
126 | dnl Report on what we found. | |
127 | case $CPUFAM in | |
128 | nil) AC_MSG_RESULT([not supported]) ;; | |
129 | *) AC_MSG_RESULT([$CPUFAM/$ABI]) ;; | |
08e2be29 | 130 | esac |
08e2be29 | 131 | |
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132 | dnl Some equipment wanted for checking CPU features at runtime. |
133 | AC_CHECK_HEADERS([asm/hwcap.h]) | |
134 | AC_CHECK_HEADERS([sys/auxv.h]) | |
135 | AC_CHECK_HEADERS([linux/auxvec.h]) | |
136 | AC_CHECK_FUNCS([getauxval]) | |
137 | ||
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138 | dnl-------------------------------------------------------------------------- |
139 | dnl C programming environment. | |
140 | ||
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141 | dnl Find out if we're cross-compiling. |
142 | AM_CONDITIONAL([CROSS_COMPILING], [test "$cross_compiling" = yes]) | |
143 | ||
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144 | dnl Various standard types. |
145 | AC_CHECK_TYPE([pid_t], [int]) | |
146 | AC_TYPE_UID_T | |
147 | AC_CHECK_TYPE([ssize_t], [int]) | |
67ea7285 | 148 | AC_CHECK_TYPE([socklen_t], [int]) |
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149 | |
150 | dnl The maths library. | |
1504e033 | 151 | mdw_ORIG_LIBS=$LIBS LIBS= |
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152 | AC_SEARCH_LIBS([log], [m]) |
153 | AC_SEARCH_LIBS([sqrt], [m]) | |
1504e033 | 154 | AC_SUBST([MATHLIBS], [$LIBS]) |
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155 | LIBS=$mdw_ORIG_LIBS |
156 | ||
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157 | dnl Find out whether very long integer types are available. |
158 | AC_CHECK_HEADERS([stdint.h]) | |
159 | AC_SUBST([have_stdint_h]) | |
160 | AC_C_LONG_LONG | |
161 | ||
162 | dnl Find the bit lengths of the obvious integer types. This will be useful | |
163 | dnl when deciding on a representation for multiprecision integers. | |
164 | type_bits="" type_bits_sep="" | |
165 | AC_DEFUN([catacomb_UINT_BITS], | |
166 | [mdw_UINT_BITS([$2], [$1]) | |
167 | type_bits="$type_bits$type_bits_sep('$1', $[]$1_bits)" | |
168 | type_bits_sep=", "]) | |
169 | catacomb_UINT_BITS([uchar], [unsigned char]) | |
170 | catacomb_UINT_BITS([ushort], [unsigned short]) | |
171 | catacomb_UINT_BITS([uint], [unsigned int]) | |
172 | catacomb_UINT_BITS([ulong], [unsigned long]) | |
173 | if test "$ac_cv_c_long_long" = "yes"; then | |
174 | catacomb_UINT_BITS([ullong], [unsigned long long]) | |
175 | fi | |
176 | if test "$ac_cv_header_stdint_h" = "yes"; then | |
177 | catacomb_UINT_BITS([uintmax], [uintmax_t]) | |
178 | fi | |
179 | AC_SUBST([type_bits]) | |
180 | ||
181 | dnl Determine the limits of common C integer types. | |
182 | limits="" limits_sep="" | |
183 | AC_DEFUN([catacomb_COMPILE_TIME_CONSTANT], | |
184 | [case "$2" in | |
185 | =*) | |
186 | $1="$2"; $1=${$1#=} | |
187 | ;; | |
188 | *) | |
189 | AC_CACHE_CHECK([compile-time value of $2], [mdw_cv_constant_$3], | |
190 | [mdw_PROBE_CONSTANT([mdw_cv_constant_$3], [$2], [$4])]) | |
191 | $1=$mdw_cv_constant_$3 | |
192 | ;; | |
193 | esac]) | |
194 | AC_DEFUN([catacomb_LIMIT], | |
195 | [catacomb_COMPILE_TIME_CONSTANT([lo], [$2], [$1_min], | |
196 | [#include <limits.h> | |
197 | #include <stddef.h>]) | |
198 | catacomb_COMPILE_TIME_CONSTANT([hi], [$3], [$1_max], | |
199 | [#include <limits.h> | |
200 | #include <stddef.h>]) | |
201 | limits="$limits$limits_sep('$1', $lo, $hi)" limits_sep=", "]) | |
202 | catacomb_LIMIT([SCHAR], [SCHAR_MIN], [SCHAR_MAX]) | |
203 | catacomb_LIMIT([CHAR], [CHAR_MIN], [CHAR_MAX]) | |
204 | catacomb_LIMIT([UCHAR], [=0], [UCHAR_MAX]) | |
205 | catacomb_LIMIT([UINT8], [=0], [=0xff]) | |
206 | catacomb_LIMIT([SHRT], [SHRT_MIN], [SHRT_MAX]) | |
207 | catacomb_LIMIT([USHRT], [=0], [USHRT_MAX]) | |
208 | catacomb_LIMIT([UINT16], [=0], [=0xffff]) | |
209 | catacomb_LIMIT([INT], [INT_MIN], [INT_MAX]) | |
210 | catacomb_LIMIT([UINT], [=0], [UINT_MAX]) | |
211 | catacomb_LIMIT([LONG], [LONG_MIN], [LONG_MAX]) | |
212 | catacomb_LIMIT([ULONG], [=0], [ULONG_MAX]) | |
213 | catacomb_LIMIT([UINT32], [=0], [=0xffffffff]) | |
214 | if test "$ac_cv_c_long_long" = "yes"; then | |
215 | catacomb_LIMIT([LLONG], [LLONG_MIN], [LLONG_MAX]) | |
216 | catacomb_LIMIT([ULLONG], [=0], [ULLONG_MAX]) | |
217 | fi | |
218 | catacomb_LIMIT([SIZET], [=0], [~(size_t)0]) | |
219 | AC_SUBST([limits]) | |
220 | ||
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221 | dnl Functions used for noise-gathering. |
222 | AC_CHECK_FUNCS([setgroups]) | |
223 | AC_CACHE_CHECK([whether the freewheel noise generator will work], | |
224 | [catacomb_cv_freewheel], | |
225 | [AC_TRY_LINK( | |
226 | [#include <setjmp.h> | |
227 | #include <sys/time.h>], | |
228 | [struct itimerval itv = { { 0, 0 }, { 0, 5000 } }; | |
229 | jmp_buf j; | |
230 | setitimer(ITIMER_REAL, &itv, 0); | |
f6ca8103 | 231 | sigsetjmp(j, 1);], |
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232 | [catacomb_cv_freewheel=yes], |
233 | [catacomb_cv_freewheel=no])]) | |
234 | case $catacomb_cv_freewheel in | |
235 | yes) | |
236 | AC_DEFINE([USE_FREEWHEEL], [1], | |
237 | [Define if you want to use the freewheel noise generator.]) | |
238 | ;; | |
239 | esac | |
240 | ||
241 | dnl Support for the passphrase pixie. | |
242 | mdw_ORIG_LIBS=$LIBS | |
243 | AC_SEARCH_LIBS([socket], [socket]) | |
244 | AC_SUBST([PIXIE_LIBS], [$LIBS]) | |
245 | LIBS=$mdw_ORIG_LIBS | |
246 | ||
247 | dnl Memory locking support. | |
248 | AC_CHECK_FUNCS([mlock]) | |
249 | ||
250 | dnl Necessary support libraries. | |
23bbea75 | 251 | PKG_CHECK_MODULES([mLib], [mLib >= 2.2.1]) |
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252 | AM_CFLAGS="$AM_CFLAGS $mLib_CFLAGS" |
253 | ||
254 | dnl-------------------------------------------------------------------------- | |
255 | dnl Python. | |
256 | ||
257 | dnl Make sure we have a suitable version. | |
258 | AM_PATH_PYTHON([2.5]) | |
259 | ||
260 | dnl-------------------------------------------------------------------------- | |
261 | dnl Special debugging options. | |
262 | ||
263 | AC_ARG_ENABLE([mpw], | |
264 | [AS_HELP_STRING([--enable-mpw], [force small-width mp digits])], | |
265 | [case "$enableval" in | |
266 | y*|t*|short) | |
267 | AC_DEFINE([FORCE_MPW_SHORT], [1], | |
268 | [Define to force small-width mp digits.]) | |
269 | ;; | |
270 | cussid) | |
271 | AC_DEFINE([FORCE_MPW_CUSSID], [1], | |
272 | [Define to force strange-width mp digits.]) | |
273 | ;; | |
274 | esac]) | |
275 | ||
276 | dnl-------------------------------------------------------------------------- | |
277 | dnl Produce output. | |
278 | ||
279 | AC_CONFIG_HEADER([config/config.h]) | |
280 | ||
281 | AC_CONFIG_FILES( | |
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282 | [Makefile] |
283 | [base/Makefile] | |
284 | [key/Makefile] | |
285 | [math/Makefile] | |
286 | [misc/Makefile] | |
287 | [pub/Makefile] | |
288 | [rand/Makefile] | |
289 | [symm/Makefile] | |
290 | [progs/Makefile]) | |
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291 | AC_OUTPUT |
292 | ||
293 | dnl----- That's all, folks -------------------------------------------------- |