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ba6e6b64 MW |
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]) | |
1c8e76bd | 34 | AM_INIT_AUTOMAKE([foreign parallel-tests color-tests subdir-objects]) |
08e2be29 | 35 | AC_CANONICAL_HOST |
ba6e6b64 MW |
36 | mdw_SILENT_RULES |
37 | ||
38 | AC_PROG_CC | |
39 | AX_CFLAGS_WARN_ALL | |
40 | AM_PROG_LIBTOOL | |
41 | mdw_LIBTOOL_VERSION_INFO | |
42 | ||
6adca914 MW |
43 | AM_PROG_AS |
44 | ||
ba6e6b64 MW |
45 | AC_PROG_YACC |
46 | ||
47 | AC_SUBST(AM_CFLAGS) | |
48 | ||
49 | dnl-------------------------------------------------------------------------- | |
7a5af13c MW |
50 | dnl Define language support for assembler. |
51 | dnl | |
52 | dnl This is stolen from https://gitlab.crest.iu.edu/jsfiroz/hpx/commit/ | |
53 | dnl 84be4345db6eec3797a57b8e53483cb43f4733bf | |
54 | ||
55 | AC_LANG_DEFINE([CPPAS], [cppas], [CPPAS], [CCAS], [C], | |
56 | [ac_ext=S ac_cpp='$CPP $CPPFLAGS' | |
57 | ac_compile='$CCAS -c $CCASFLAGS $CPPFLAGS dnl | |
58 | conftest.$ac_ext >&AS_MESSAGE_LOG_FD' | |
59 | ac_link='$CCAS -oconftest$ac_exeext $CCASFLAGS $CPPFLAGS $LDFLAGS dnl | |
60 | conftest.$ac_ext $LIBS >&AS_MESSAGE_LOG_FD']) | |
61 | ||
62 | AC_DEFUN([AC_LANG_PREPROC(CPPAS)], [AC_REQUIRE([AC_PROG_CPP])]) | |
63 | AC_DEFUN([AC_LANG_COMPILER(CPPAS)], [AC_REQUIRE([AM_PROG_AS])]) | |
64 | AC_DEFUN([AC_LANG_CONFTEST(CPPAS)], | |
65 | [cat confdefs.h - <<_ACEOF >conftest.$ac_ext | |
66 | /* end confdefs.h. */ | |
67 | $1 | |
68 | _ACEOF]) | |
69 | ||
70 | AC_CACHE_CHECK( | |
71 | [whether the assembler is likely to work], [mdw_cv_gnuish_as], | |
72 | [AC_LANG_PUSH([CPPAS]) | |
73 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ | |
74 | .text | |
75 | .L\$_test = 23 | |
76 | .macro mymac | |
77 | .L\$_test = .L\$_test + 1 | |
78 | .endm | |
79 | .globl foo | |
80 | .extern bar | |
81 | mymac]])], | |
82 | [mdw_cv_gnuish_as=yes], [mdw_cv_gnuish_as=no]) | |
83 | AC_LANG_POP([CPPAS])]) | |
84 | AM_CONDITIONAL([GNUISH_AS], [test $mdw_cv_gnuish_as = yes]) | |
85 | ||
86 | dnl-------------------------------------------------------------------------- | |
08e2be29 MW |
87 | dnl Host-specific configuration. |
88 | ||
ff1f7e22 MW |
89 | AC_MSG_CHECKING([CPU family and ABI]) |
90 | ||
91 | dnl The table of CPU families and ABIs which we might support. Support is | |
92 | dnl not uniform: each dispatched function might or might not have an | |
93 | dnl implementation for any particular CPU/ABI combination. | |
08e2be29 | 94 | AC_DEFUN([catacomb_CPU_FAMILIES], |
0f23f75f MW |
95 | [$1([i[[3-6]]86,cygwin], [x86], [win]) |
96 | $1([i[[3-6]]86,*], [x86], [sysv]) | |
97 | $1([x86_64,cygwin], [amd64], [win]) | |
61bd904b | 98 | $1([x86_64,*], [amd64], [sysv]) |
2cbeb9a2 MW |
99 | $1([arm,*-gnueabi | arm,*-gnueabihf | dnl |
100 | armv*,*-gnueabi | armv*,*-gnueabihf], [armel], [gnueabi])]) | |
ff1f7e22 MW |
101 | |
102 | dnl A utility to clear the `seen' flags, used so as to process each CPU or | |
103 | dnl ABI once. | |
104 | m4_define([catacomb_CLEAR_FLAGS], | |
105 | [m4_ifdef([catacomb_seen_cpu/$2], | |
106 | [m4_undefine([catacomb_seen_cpu/$2])])dnl | |
107 | m4_ifdef([catacomb_seen_abi/$3], | |
108 | [m4_undefine([catacomb_seen_abi/$3])])]) | |
08e2be29 | 109 | |
ff1f7e22 | 110 | dnl Identify the current host. |
7a5af13c MW |
111 | if test $mdw_cv_gnuish_as = no; then |
112 | CPUFAM=nil ABI=nil | |
113 | else | |
114 | case $host_cpu,$host_os in | |
115 | m4_define([catacomb_CPU_CASE], | |
116 | [$1) CPUFAM=$2 ABI=$3 ;; | |
08e2be29 | 117 | ]) |
7a5af13c MW |
118 | catacomb_CPU_FAMILIES([catacomb_CPU_CASE]) |
119 | *) CPUFAM=nil ABI=nil ;; | |
120 | esac | |
121 | fi | |
ff1f7e22 MW |
122 | |
123 | dnl Figure out the current CPU. | |
124 | catacomb_CPU_FAMILIES([catacomb_CLEAR_FLAGS]) | |
125 | case $CPUFAM in | |
126 | m4_define([catacomb_DEFINE_CPU], | |
127 | [m4_ifdef([catacomb_seen_cpu/$2], [], | |
128 | [$2) | |
129 | AC_DEFINE([CPUFAM_]m4_translit([$2], [a-z], [A-Z]), [1], | |
130 | [Define if host CPU family is \`$2\'.]) | |
131 | ;;m4_define([catacomb_seen_cpu/$2], [t])])]) | |
132 | catacomb_CPU_FAMILIES([catacomb_DEFINE_CPU]) | |
133 | nil) ;; | |
134 | *) AC_MSG_ERROR([BUG: unexpected cpufam \`$CPUFAM']) ;; | |
135 | esac | |
136 | AC_SUBST([CPUFAM]) | |
137 | ||
138 | dnl Figure out the current ABI. | |
139 | catacomb_CPU_FAMILIES([catacomb_CLEAR_FLAGS]) | |
140 | case $ABI in | |
141 | m4_define([catacomb_DEFINE_ABI], | |
142 | [m4_ifdef([catacomb_seen_abi/$3], [], | |
143 | [$3) | |
144 | AC_DEFINE([ABI_]m4_translit([$3], [a-z], [A-Z]), [1], | |
145 | [Define if host ABI variant is \`$3\'.]) | |
146 | ;;m4_define([catacomb_seen_abi/$3], [t])])]) | |
147 | catacomb_CPU_FAMILIES([catacomb_DEFINE_ABI]) | |
148 | nil) ;; | |
149 | *) AC_MSG_ERROR([BUG: unexpected ABI \`$ABI']) ;; | |
150 | esac | |
151 | AC_SUBST([ABI]) | |
152 | ||
153 | dnl Establish Automake conditions for things. | |
154 | catacomb_CPU_FAMILIES([catacomb_CLEAR_FLAGS]) | |
155 | m4_define([catacomb_COND_CPU], | |
156 | [m4_define([_CPU], m4_translit([$2], [a-z], [A-Z])) | |
157 | m4_define([_ABI], m4_translit([$3], [a-z], [A-Z])) | |
158 | AM_CONDITIONAL([CPUABI_]_CPU[_]_ABI, [test x$CPUFAM/$ABI = x$2/$3]) | |
159 | m4_ifdef([catacomb_seen_cpu/$2], [], | |
160 | [AM_CONDITIONAL([CPUFAM_]_CPU, [test x$CPUFAM = x$2])dnl | |
161 | m4_define([catacomb_seen_cpu/$2], [t])]) | |
162 | m4_ifdef([catacomb_seen_abi/$3], [], | |
163 | [AM_CONDITIONAL([ABI_]_ABI, [test x$ABI = x$3])dnl | |
164 | m4_define([catacomb_seen_abi/$3], [t])])]) | |
165 | catacomb_CPU_FAMILIES([catacomb_COND_CPU]) | |
166 | AM_CONDITIONAL([KNOWN_CPUFAM], [test x$CPUFAM != xnil]) | |
167 | ||
168 | dnl Report on what we found. | |
169 | case $CPUFAM in | |
170 | nil) AC_MSG_RESULT([not supported]) ;; | |
171 | *) AC_MSG_RESULT([$CPUFAM/$ABI]) ;; | |
08e2be29 | 172 | esac |
08e2be29 MW |
173 | |
174 | dnl-------------------------------------------------------------------------- | |
26e182fc MW |
175 | dnl CPU-specific assembler features. |
176 | ||
177 | AC_LANG([CPPAS]) | |
178 | ||
179 | case $CPUFAM in | |
180 | armel) | |
181 | AC_CACHE_CHECK( | |
182 | [whether the assembler understands ARMv8 crypto extensions], | |
183 | [mdw_cv_as_armv8_crypto], | |
184 | [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ | |
185 | .arch armv8-a | |
186 | .fpu crypto-neon-fp-armv8 | |
187 | ||
188 | .text | |
189 | .globl foo | |
190 | foo: | |
191 | vldmia r0, {d0-d3} | |
192 | aese.8 q0, q1 | |
193 | aesmc.8 q0, q0 | |
194 | vstmia r0, {d0, d1} | |
195 | bx r14]])], | |
196 | [mdw_cv_as_armv8_crypto=yes], | |
197 | [mdw_cv_as_armv8_crypto=no])]) | |
198 | ;; | |
199 | esac | |
200 | ||
201 | : ${mdw_cv_as_armv8_crypto=no} | |
202 | AM_CONDITIONAL([HAVE_AS_ARMV8_CRYPTO], [test $mdw_cv_as_armv8_crypto = yes]) | |
203 | if test $mdw_cv_as_armv8_crypto = yes; then | |
204 | AC_DEFINE([HAVE_AS_ARMV8_CRYPTO], [1], | |
205 | [Define to 1 if your ARM assembler supports the ARMv8 crypto instructions.]) | |
206 | fi | |
207 | ||
208 | dnl-------------------------------------------------------------------------- | |
ba6e6b64 MW |
209 | dnl C programming environment. |
210 | ||
fedd2209 MW |
211 | AC_LANG([C]) |
212 | ||
02fe0bac MW |
213 | CATACOMB_LIBS= |
214 | ||
0f00dc4c MW |
215 | dnl Find out if we're cross-compiling. |
216 | AM_CONDITIONAL([CROSS_COMPILING], [test "$cross_compiling" = yes]) | |
217 | ||
ba6e6b64 | 218 | dnl Various standard types. |
2527c2f7 MW |
219 | AC_CHECK_TYPE([pid_t], [], |
220 | [AC_DEFINE([pid_t], [int], | |
221 | [Define to `int' if <sys/types.h> does not define])]) | |
ba6e6b64 | 222 | AC_TYPE_UID_T |
2527c2f7 MW |
223 | AC_CHECK_TYPE([ssize_t], [], |
224 | [AC_DEFINE([ssize_t], [int], | |
225 | [Define to `int' if <sys/types.h> does not define])]) | |
226 | AC_CHECK_TYPE([socklen_t], [], | |
227 | [AC_DEFINE([socklen_t], [int], | |
228 | [Define to `int' if <sys/socket.h> does not define])], | |
229 | [AC_INCLUDES_DEFAULT | |
230 | #include <sys/socket.h> | |
231 | ]) | |
ba6e6b64 MW |
232 | |
233 | dnl The maths library. | |
1504e033 | 234 | mdw_ORIG_LIBS=$LIBS LIBS= |
ba6e6b64 MW |
235 | AC_SEARCH_LIBS([log], [m]) |
236 | AC_SEARCH_LIBS([sqrt], [m]) | |
1504e033 | 237 | AC_SUBST([MATHLIBS], [$LIBS]) |
ba6e6b64 MW |
238 | LIBS=$mdw_ORIG_LIBS |
239 | ||
1c3d4cf5 MW |
240 | dnl Find out whether very long integer types are available. |
241 | AC_CHECK_HEADERS([stdint.h]) | |
242 | AC_SUBST([have_stdint_h]) | |
729a52ce | 243 | AX_C_LONG_LONG |
1c3d4cf5 | 244 | |
fedd2209 MW |
245 | dnl Some equipment wanted for checking CPU features at runtime. |
246 | AC_CHECK_HEADERS([asm/hwcap.h]) | |
247 | AC_CHECK_HEADERS([sys/auxv.h]) | |
248 | AC_CHECK_HEADERS([linux/auxvec.h]) | |
249 | AC_CHECK_FUNCS([getauxval]) | |
250 | ||
1c3d4cf5 MW |
251 | dnl Find the bit lengths of the obvious integer types. This will be useful |
252 | dnl when deciding on a representation for multiprecision integers. | |
253 | type_bits="" type_bits_sep="" | |
254 | AC_DEFUN([catacomb_UINT_BITS], | |
255 | [mdw_UINT_BITS([$2], [$1]) | |
256 | type_bits="$type_bits$type_bits_sep('$1', $[]$1_bits)" | |
257 | type_bits_sep=", "]) | |
258 | catacomb_UINT_BITS([uchar], [unsigned char]) | |
259 | catacomb_UINT_BITS([ushort], [unsigned short]) | |
260 | catacomb_UINT_BITS([uint], [unsigned int]) | |
261 | catacomb_UINT_BITS([ulong], [unsigned long]) | |
262 | if test "$ac_cv_c_long_long" = "yes"; then | |
263 | catacomb_UINT_BITS([ullong], [unsigned long long]) | |
264 | fi | |
265 | if test "$ac_cv_header_stdint_h" = "yes"; then | |
266 | catacomb_UINT_BITS([uintmax], [uintmax_t]) | |
267 | fi | |
268 | AC_SUBST([type_bits]) | |
269 | ||
270 | dnl Determine the limits of common C integer types. | |
271 | limits="" limits_sep="" | |
272 | AC_DEFUN([catacomb_COMPILE_TIME_CONSTANT], | |
273 | [case "$2" in | |
274 | =*) | |
275 | $1="$2"; $1=${$1#=} | |
276 | ;; | |
277 | *) | |
278 | AC_CACHE_CHECK([compile-time value of $2], [mdw_cv_constant_$3], | |
279 | [mdw_PROBE_CONSTANT([mdw_cv_constant_$3], [$2], [$4])]) | |
280 | $1=$mdw_cv_constant_$3 | |
281 | ;; | |
282 | esac]) | |
283 | AC_DEFUN([catacomb_LIMIT], | |
284 | [catacomb_COMPILE_TIME_CONSTANT([lo], [$2], [$1_min], | |
285 | [#include <limits.h> | |
286 | #include <stddef.h>]) | |
287 | catacomb_COMPILE_TIME_CONSTANT([hi], [$3], [$1_max], | |
288 | [#include <limits.h> | |
289 | #include <stddef.h>]) | |
290 | limits="$limits$limits_sep('$1', $lo, $hi)" limits_sep=", "]) | |
291 | catacomb_LIMIT([SCHAR], [SCHAR_MIN], [SCHAR_MAX]) | |
292 | catacomb_LIMIT([CHAR], [CHAR_MIN], [CHAR_MAX]) | |
293 | catacomb_LIMIT([UCHAR], [=0], [UCHAR_MAX]) | |
294 | catacomb_LIMIT([UINT8], [=0], [=0xff]) | |
295 | catacomb_LIMIT([SHRT], [SHRT_MIN], [SHRT_MAX]) | |
296 | catacomb_LIMIT([USHRT], [=0], [USHRT_MAX]) | |
297 | catacomb_LIMIT([UINT16], [=0], [=0xffff]) | |
298 | catacomb_LIMIT([INT], [INT_MIN], [INT_MAX]) | |
299 | catacomb_LIMIT([UINT], [=0], [UINT_MAX]) | |
300 | catacomb_LIMIT([LONG], [LONG_MIN], [LONG_MAX]) | |
301 | catacomb_LIMIT([ULONG], [=0], [ULONG_MAX]) | |
302 | catacomb_LIMIT([UINT32], [=0], [=0xffffffff]) | |
303 | if test "$ac_cv_c_long_long" = "yes"; then | |
304 | catacomb_LIMIT([LLONG], [LLONG_MIN], [LLONG_MAX]) | |
305 | catacomb_LIMIT([ULLONG], [=0], [ULLONG_MAX]) | |
306 | fi | |
307 | catacomb_LIMIT([SIZET], [=0], [~(size_t)0]) | |
308 | AC_SUBST([limits]) | |
309 | ||
ba6e6b64 MW |
310 | dnl Functions used for noise-gathering. |
311 | AC_CHECK_FUNCS([setgroups]) | |
baf5b59c | 312 | AC_CHECK_HEADERS([linux/random.h]) |
8039afaf MW |
313 | mdw_ORIG_LIBS=$LIBS LIBS=$CATACOMB_LIBS |
314 | AC_SEARCH_LIBS([clock_gettime], [rt]) | |
315 | CATACOMB_LIBS=$LIBS LIBS=$mdw_ORIG_LIBS | |
fe54dc64 | 316 | if test "$ac_cv_search_clock_gettime" != no; then |
8039afaf MW |
317 | AC_DEFINE([HAVE_CLOCK_GETTIME], [1], |
318 | [Define if you have the \`clock_gettime' function.]) | |
319 | fi | |
6d4416cc | 320 | AC_CHECK_FUNCS([getentropy]) |
ba6e6b64 MW |
321 | AC_CACHE_CHECK([whether the freewheel noise generator will work], |
322 | [catacomb_cv_freewheel], | |
323 | [AC_TRY_LINK( | |
324 | [#include <setjmp.h> | |
325 | #include <sys/time.h>], | |
326 | [struct itimerval itv = { { 0, 0 }, { 0, 5000 } }; | |
327 | jmp_buf j; | |
328 | setitimer(ITIMER_REAL, &itv, 0); | |
f6ca8103 | 329 | sigsetjmp(j, 1);], |
ba6e6b64 MW |
330 | [catacomb_cv_freewheel=yes], |
331 | [catacomb_cv_freewheel=no])]) | |
332 | case $catacomb_cv_freewheel in | |
333 | yes) | |
334 | AC_DEFINE([USE_FREEWHEEL], [1], | |
335 | [Define if you want to use the freewheel noise generator.]) | |
336 | ;; | |
337 | esac | |
338 | ||
339 | dnl Support for the passphrase pixie. | |
340 | mdw_ORIG_LIBS=$LIBS | |
341 | AC_SEARCH_LIBS([socket], [socket]) | |
342 | AC_SUBST([PIXIE_LIBS], [$LIBS]) | |
343 | LIBS=$mdw_ORIG_LIBS | |
344 | ||
345 | dnl Memory locking support. | |
346 | AC_CHECK_FUNCS([mlock]) | |
347 | ||
02fe0bac MW |
348 | dnl Set the master libraries we need. |
349 | AC_SUBST([CATACOMB_LIBS]) | |
350 | ||
ba6e6b64 | 351 | dnl Necessary support libraries. |
a1acefec | 352 | PKG_CHECK_MODULES([mLib], [mLib >= 2.2.2.1]) |
ba6e6b64 MW |
353 | AM_CFLAGS="$AM_CFLAGS $mLib_CFLAGS" |
354 | ||
355 | dnl-------------------------------------------------------------------------- | |
356 | dnl Python. | |
357 | ||
358 | dnl Make sure we have a suitable version. | |
359 | AM_PATH_PYTHON([2.5]) | |
360 | ||
361 | dnl-------------------------------------------------------------------------- | |
362 | dnl Special debugging options. | |
363 | ||
364 | AC_ARG_ENABLE([mpw], | |
365 | [AS_HELP_STRING([--enable-mpw], [force small-width mp digits])], | |
366 | [case "$enableval" in | |
367 | y*|t*|short) | |
368 | AC_DEFINE([FORCE_MPW_SHORT], [1], | |
369 | [Define to force small-width mp digits.]) | |
370 | ;; | |
371 | cussid) | |
372 | AC_DEFINE([FORCE_MPW_CUSSID], [1], | |
373 | [Define to force strange-width mp digits.]) | |
374 | ;; | |
375 | esac]) | |
376 | ||
377 | dnl-------------------------------------------------------------------------- | |
378 | dnl Produce output. | |
379 | ||
380 | AC_CONFIG_HEADER([config/config.h]) | |
381 | ||
382 | AC_CONFIG_FILES( | |
0f00dc4c MW |
383 | [Makefile] |
384 | [base/Makefile] | |
385 | [key/Makefile] | |
386 | [math/Makefile] | |
387 | [misc/Makefile] | |
388 | [pub/Makefile] | |
389 | [rand/Makefile] | |
390 | [symm/Makefile] | |
391 | [progs/Makefile]) | |
ba6e6b64 MW |
392 | AC_OUTPUT |
393 | ||
394 | dnl----- That's all, folks -------------------------------------------------- |