1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
|
# Copyright (c) 1999-2014, International Business Machines Corporation and
# others. All Rights Reserved.
# acinclude.m4 for ICU
# Don't edit aclocal.m4, do edit acinclude.m4
# Stephen F. Booth
# @TOP@
# ICU_CHECK_MH_FRAG
AC_DEFUN([ICU_CHECK_MH_FRAG], [
AC_CACHE_CHECK(
[which Makefile fragment to use for ${host}],
[icu_cv_host_frag],
[
case "${host}" in
*-*-solaris*)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-solaris-gcc
else
icu_cv_host_frag=mh-solaris
fi ;;
alpha*-*-linux-gnu)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-alpha-linux-gcc
else
icu_cv_host_frag=mh-alpha-linux-cc
fi ;;
powerpc*-*-linux*)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-linux
else
icu_cv_host_frag=mh-linux-va
fi ;;
*-*-linux*|*-*-gnu|*-*-k*bsd*-gnu|*-*-kopensolaris*-gnu) icu_cv_host_frag=mh-linux ;;
i[[34567]]86-*-cygwin)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-cygwin
else
icu_cv_host_frag=mh-cygwin-msvc
fi ;;
x86_64-*-cygwin)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-cygwin64
else
icu_cv_host_frag=mh-cygwin-msvc
fi ;;
*-*-mingw*)
if test "$GCC" = yes; then
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#ifndef __MINGW64__
#error This is not MinGW64
#endif]])], [icu_cv_host_frag=mh-mingw64],
[icu_cv_host_frag=mh-mingw])
else
case "${host}" in
*-*-mingw*) icu_cv_host_frag=mh-msys-msvc ;;
*-*-cygwin) icu_cv_host_frag=mh-cygwin-msvc ;;
esac
fi ;;
*-*-*bsd*|*-*-dragonfly*) icu_cv_host_frag=mh-bsd-gcc ;;
*-*-aix*)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-aix-gcc
else
icu_cv_host_frag=mh-aix-va
fi ;;
*-*-hpux*)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-hpux-gcc
else
case "$CXX" in
*aCC) icu_cv_host_frag=mh-hpux-acc ;;
esac
fi ;;
*-*ibm-openedition*|*-*-os390*) icu_cv_host_frag=mh-os390 ;;
*-*-os400*) icu_cv_host_frag=mh-os400 ;;
*-apple-rhapsody*) icu_cv_host_frag=mh-darwin ;;
*-apple-darwin*) icu_cv_host_frag=mh-darwin ;;
*-*-beos) icu_cv_host_frag=mh-beos ;;
*-*-haiku) icu_cv_host_frag=mh-haiku ;;
*-*-irix*) icu_cv_host_frag=mh-irix ;;
*-dec-osf*) icu_cv_host_frag=mh-alpha-osf ;;
*-*-nto*) icu_cv_host_frag=mh-qnx ;;
*-ncr-*) icu_cv_host_frag=mh-mpras ;;
*) icu_cv_host_frag=mh-unknown ;;
esac
]
)
])
# ICU_CONDITIONAL - similar example taken from Automake 1.4
AC_DEFUN([ICU_CONDITIONAL],
[AC_SUBST($1_TRUE)
if $2; then
$1_TRUE=
else
$1_TRUE='#'
fi])
# ICU_PROG_LINK - Make sure that the linker is usable
AC_DEFUN([ICU_PROG_LINK],
[
case "${host}" in
*-*-cygwin*|*-*-mingw*)
if test "$GCC" != yes && test -n "`link --version 2>&1 | grep 'GNU coreutils'`"; then
AC_MSG_ERROR([link.exe is not a valid linker. Your PATH is incorrect.
Please follow the directions in ICU's readme.])
fi;;
*);;
esac])
# AC_SEARCH_LIBS_FIRST(FUNCTION, SEARCH-LIBS [, ACTION-IF-FOUND
# [, ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]])
# Search for a library defining FUNC, then see if it's not already available.
AC_DEFUN([AC_SEARCH_LIBS_FIRST],
[AC_PREREQ([2.13])
AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1],
[ac_func_search_save_LIBS="$LIBS"
ac_cv_search_$1="no"
for i in $2; do
LIBS="-l$i $5 $ac_func_search_save_LIBS"
AC_TRY_LINK_FUNC([$1],
[ac_cv_search_$1="-l$i"
break])
done
if test "$ac_cv_search_$1" = "no"; then
AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1="none required"])
fi
LIBS="$ac_func_search_save_LIBS"])
if test "$ac_cv_search_$1" != "no"; then
test "$ac_cv_search_$1" = "none required" || LIBS="$ac_cv_search_$1 $LIBS"
$3
else :
$4
fi])
# Check if we can build and use 64-bit libraries
AC_DEFUN([AC_CHECK_64BIT_LIBS],
[
BITS_REQ=nochange
ENABLE_64BIT_LIBS=unknown
## revisit this for cross-compile.
AC_ARG_ENABLE(64bit-libs,
[ --enable-64bit-libs (deprecated, use --with-library-bits) build 64-bit libraries [default= platform default]],
[echo "note, use --with-library-bits instead of --*-64bit-libs"
case "${enableval}" in
no|false|32) with_library_bits=32; ;;
yes|true|64) with_library_bits=64else32 ;;
nochange) with_library_bits=nochange; ;;
*) AC_MSG_ERROR(bad value ${enableval} for '--*-64bit-libs') ;;
esac] )
AC_ARG_WITH(library-bits,
[ --with-library-bits=bits specify how many bits to use for the library (32, 64, 64else32, nochange) [default=nochange]],
[case "${withval}" in
""|nochange) BITS_REQ=$withval ;;
32|64|64else32) BITS_REQ=$withval ;;
*) AC_MSG_ERROR(bad value ${withval} for --with-library-bits) ;;
esac])
# don't use these for cross compiling
if test "$cross_compiling" = "yes" -a "${BITS_REQ}" != "nochange"; then
AC_MSG_ERROR([Don't specify bitness when cross compiling. See readme.html for help with cross compilation., and set compiler options manually.])
fi
AC_CHECK_SIZEOF([void *])
AC_MSG_CHECKING([whether runnable 64 bit binaries are built by default])
case $ac_cv_sizeof_void_p in
8) DEFAULT_64BIT=yes ;;
4) DEFAULT_64BIT=no ;;
*) DEFAULT_64BIT=unknown
esac
BITS_GOT=unknown
# 'OK' here means, we can exit any further checking, everything's copa
BITS_OK=yes
# do we need to check for buildable/runnable 32 or 64 bit?
BITS_CHECK_32=no
BITS_CHECK_64=no
# later, can we run the 32/64 bit binaries so made?
BITS_RUN_32=no
BITS_RUN_64=no
if test "$DEFAULT_64BIT" = "yes"; then
# we get 64 bits by default.
BITS_GOT=64
case "$BITS_REQ" in
32)
# need to look for 32 bit support.
BITS_CHECK_32=yes
# not copa.
BITS_OK=no;;
# everyone else is happy.
nochange) ;;
*) ;;
esac
elif test "$DEFAULT_64BIT" = "no"; then
# not 64 bit by default.
BITS_GOT=32
case "$BITS_REQ" in
64|64else32)
BITS_CHECK_64=yes
#BITS_CHECK_32=yes
BITS_OK=no;;
nochange) ;;
*) ;;
esac
elif test "$DEFAULT_64BIT" = "unknown"; then
# cross compiling.
BITS_GOT=unknown
case "$BITS_REQ" in
64|64else32) BITS_OK=no
BITS_CHECK_32=yes
BITS_CHECK_64=yes ;;
32) BITS_OK=no;;
nochange) ;;
*) ;;
esac
fi
AC_MSG_RESULT($DEFAULT_64BIT);
if test "$BITS_OK" != "yes"; then
# not copa. back these up.
CFLAGS_OLD="${CFLAGS}"
CXXFLAGS_OLD="${CXXFLAGS}"
LDFLAGS_OLD="${LDFLAGS}"
ARFLAGS_OLD="${ARFLAGS}"
CFLAGS_32="${CFLAGS}"
CXXFLAGS_32="${CXXFLAGS}"
LDFLAGS_32="${LDFLAGS}"
ARFLAGS_32="${ARFLAGS}"
CFLAGS_64="${CFLAGS}"
CXXFLAGS_64="${CXXFLAGS}"
LDFLAGS_64="${LDFLAGS}"
ARFLAGS_64="${ARFLAGS}"
CAN_BUILD_64=unknown
CAN_BUILD_32=unknown
# These results can't be cached because is sets compiler flags.
if test "$BITS_CHECK_64" = "yes"; then
AC_MSG_CHECKING([how to build 64-bit executables])
CAN_BUILD_64=no
####
# Find out if we think we can *build* for 64 bit. Doesn't check whether we can run it.
# Note, we don't have to actually check if the options work- we'll try them before using them.
# So, only try actually testing the options, if you are trying to decide between multiple options.
# On exit from the following clauses:
# if CAN_BUILD_64=yes:
# *FLAGS are assumed to contain the right settings for 64bit
# else if CAN_BUILD_64=no: (default)
# *FLAGS are assumed to be trashed, and will be reset from *FLAGS_OLD
if test "$GCC" = yes; then
CFLAGS="${CFLAGS} -m64"
CXXFLAGS="${CXXFLAGS} -m64"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no)
else
case "${host}" in
sparc*-*-solaris*)
# 1. try -m64
CFLAGS="${CFLAGS} -m64"
CXXFLAGS="${CXXFLAGS} -m64"
AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no, CAN_BUILD_64=unknown)
if test "$CAN_BUILD_64" != yes; then
# Nope. back out changes.
CFLAGS="${CFLAGS_OLD}"
CXXFLAGS="${CXXFLAGS_OLD}"
# 2. try xarch=v9 [deprecated]
## TODO: cross compile: the following won't work.
SPARCV9=`isainfo -n 2>&1 | grep sparcv9`
SOL64=`$CXX -xarch=v9 2>&1 && $CC -xarch=v9 2>&1 | grep -v usage:`
# "Warning: -xarch=v9 is deprecated, use -m64 to create 64-bit programs"
if test -z "$SOL64" && test -n "$SPARCV9"; then
CFLAGS="${CFLAGS} -xtarget=ultra -xarch=v9"
CXXFLAGS="${CXXFLAGS} -xtarget=ultra -xarch=v9"
LDFLAGS="${LDFLAGS} -xtarget=ultra -xarch=v9"
CAN_BUILD_64=yes
fi
fi
;;
i386-*-solaris*)
# 1. try -m64
CFLAGS="${CFLAGS} -m64"
CXXFLAGS="${CXXFLAGS} -m64"
AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no, CAN_BUILD_64=unknown)
if test "$CAN_BUILD_64" != yes; then
# Nope. back out changes.
CFLAGS="${CFLAGS_OLD}"
CXXFLAGS="${CXXFLAGS_OLD}"
# 2. try the older compiler option
## TODO: cross compile problem
AMD64=`isainfo -n 2>&1 | grep amd64`
SOL64=`$CXX -xtarget=generic64 2>&1 && $CC -xtarget=generic64 2>&1 | grep -v usage:`
if test -z "$SOL64" && test -n "$AMD64"; then
CFLAGS="${CFLAGS} -xtarget=generic64"
CXXFLAGS="${CXXFLAGS} -xtarget=generic64"
CAN_BUILD_64=yes
fi
fi
;;
ia64-*-linux*)
# check for ecc/ecpc compiler support
## TODO: cross compiler problem
if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Intel`"; then
if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Itanium`"; then
CAN_BUILD_64=yes
fi
fi
;;
*-*-cygwin)
# vcvarsamd64.bat should have been used to enable 64-bit builds.
# We only do this check to display the correct answer.
## TODO: cross compiler problem
if test -n "`$CXX -help 2>&1 | grep 'for x64'`"; then
CAN_BUILD_64=yes
fi
;;
*-*-aix*|powerpc64-*-linux*)
CFLAGS="${CFLAGS} -q64"
CXXFLAGS="${CXXFLAGS} -q64"
LDFLAGS="${LDFLAGS} -q64"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no)
if test "$CAN_BUILD_64" = yes; then
# worked- set other options.
case "${host}" in
*-*-aix*)
# tell AIX what executable mode to use.
ARFLAGS="${ARFLAGS} -X64"
esac
fi
;;
*-*-hpux*)
# First we try the newer +DD64, if that doesn't work,
# try other options.
CFLAGS="${CFLAGS} +DD64"
CXXFLAGS="${CXXFLAGS} +DD64"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no)
if test "$CAN_BUILD_64" != yes; then
# reset
CFLAGS="${CFLAGS_OLD}"
CXXFLAGS="${CXXFLAGS_OLD}"
# append
CFLAGS="${CFLAGS} +DA2.0W"
CXXFLAGS="${CXXFLAGS} +DA2.0W"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no)
fi
;;
*-*ibm-openedition*|*-*-os390*)
CFLAGS="${CFLAGS} -Wc,lp64"
CXXFLAGS="${CXXFLAGS} -Wc,lp64"
LDFLAGS="${LDFLAGS} -Wl,lp64"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no)
;;
*)
# unknown platform.
;;
esac
fi
AC_MSG_RESULT($CAN_BUILD_64)
if test "$CAN_BUILD_64" = yes; then
AC_MSG_CHECKING([whether runnable 64-bit binaries are being built ])
AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
BITS_RUN_64=yes, BITS_RUN_64=no, BITS_RUN_64=unknown)
AC_MSG_RESULT($BITS_RUN_64);
CFLAGS_64="${CFLAGS}"
CXXFLAGS_64="${CXXFLAGS}"
LDFLAGS_64="${LDFLAGS}"
ARFLAGS_64="${ARFLAGS}"
fi
# put it back.
CFLAGS="${CFLAGS_OLD}"
CXXFLAGS="${CXXFLAGS_OLD}"
LDFLAGS="${LDFLAGS_OLD}"
ARFLAGS="${ARFLAGS_OLD}"
fi
if test "$BITS_CHECK_32" = "yes"; then
# see comment under 'if BITS_CHECK_64', above.
AC_MSG_CHECKING([how to build 32-bit executables])
if test "$GCC" = yes; then
CFLAGS="${CFLAGS} -m32"
CXXFLAGS="${CXXFLAGS} -m32"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==32)?0:1;}])],
CAN_BUILD_32=yes, CAN_BUILD_32=no)
fi
AC_MSG_RESULT($CAN_BUILD_32)
if test "$CAN_BUILD_32" = yes; then
AC_MSG_CHECKING([whether runnable 32-bit binaries are being built ])
AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==32)?0:1;}])],
BITS_RUN_32=yes, BITS_RUN_32=no, BITS_RUN_32=unknown)
AC_MSG_RESULT($BITS_RUN_32);
CFLAGS_32="${CFLAGS}"
CXXFLAGS_32="${CXXFLAGS}"
LDFLAGS_32="${LDFLAGS}"
ARFLAGS_32="${ARFLAGS}"
fi
# put it back.
CFLAGS="${CFLAGS_OLD}"
CXXFLAGS="${CXXFLAGS_OLD}"
LDFLAGS="${LDFLAGS_OLD}"
ARFLAGS="${ARFLAGS_OLD}"
fi
##
# OK. Now, we've tested for 32 and 64 bitness. Let's see what we'll do.
#
# First, implement 64else32
if test "$BITS_REQ" = "64else32"; then
if test "$BITS_RUN_64" = "yes"; then
BITS_REQ=64
else
# no changes.
BITS_OK=yes
fi
fi
# implement.
if test "$BITS_REQ" = "32" -a "$BITS_RUN_32" = "yes"; then
CFLAGS="${CFLAGS_32}"
CXXFLAGS="${CXXFLAGS_32}"
LDFLAGS="${LDFLAGS_32}"
ARFLAGS="${ARFLAGS_32}"
BITS_OK=yes
elif test "$BITS_REQ" = "64" -a "$BITS_RUN_64" = "yes"; then
CFLAGS="${CFLAGS_64}"
CXXFLAGS="${CXXFLAGS_64}"
LDFLAGS="${LDFLAGS_64}"
ARFLAGS="${ARFLAGS_64}"
BITS_OK=yes
elif test "$BITS_OK" != "yes"; then
AC_MSG_ERROR([Requested $BITS_REQ bit binaries but could not compile and execute them. See readme.html for help with cross compilation., and set compiler options manually.])
fi
fi
])
# Strict compilation options.
AC_DEFUN([AC_CHECK_STRICT_COMPILE],
[
AC_MSG_CHECKING([whether strict compiling is on])
AC_ARG_ENABLE(strict,[ --enable-strict compile with strict compiler options [default=yes]], [
if test "$enableval" = no
then
ac_use_strict_options=no
else
ac_use_strict_options=yes
fi
], [ac_use_strict_options=yes])
AC_MSG_RESULT($ac_use_strict_options)
if test "$ac_use_strict_options" = yes
then
if test "$GCC" = yes
then
case "${host}" in
*)
# Do not use -ansi. It limits us to C90, and it breaks some platforms.
# We use -std=c99 to disable the gnu99 defaults and its associated warnings
CFLAGS="$CFLAGS -std=c99"
;;
esac
CFLAGS="$CFLAGS -Wall -pedantic -Wshadow -Wpointer-arith -Wmissing-prototypes -Wwrite-strings"
else
case "${host}" in
*-*-cygwin)
if test "`$CC /help 2>&1 | head -c9`" = "Microsoft"
then
CFLAGS="$CFLAGS /W4"
fi ;;
*-*-mingw*)
CFLAGS="$CFLAGS -W4" ;;
esac
fi
if test "$GXX" = yes
then
CXXFLAGS="$CXXFLAGS -W -Wall -pedantic -Wpointer-arith -Wwrite-strings -Wno-long-long"
else
case "${host}" in
*-*-cygwin)
if test "`$CXX /help 2>&1 | head -c9`" = "Microsoft"
then
CXXFLAGS="$CXXFLAGS /W4"
fi ;;
*-*-mingw*)
CFLAGS="$CFLAGS -W4" ;;
esac
fi
fi
])
|
