1 # aclocal.m4 for ICU 2 # Copyright (c) 1999-2012, International Business Machines Corporation and 3 # others. All Rights Reserved. 4 # Stephen F. Booth 5 6 # @TOP@ 7 8 # ICU_CHECK_MH_FRAG 9 AC_DEFUN(ICU_CHECK_MH_FRAG, [ 10 AC_CACHE_CHECK( 11 [which Makefile fragment to use for ${host}], 12 [icu_cv_host_frag], 13 [ 14 case "${host}" in 15 *-*-solaris*) 16 if test "$GCC" = yes; then 17 icu_cv_host_frag=mh-solaris-gcc 18 else 19 icu_cv_host_frag=mh-solaris 20 fi ;; 21 alpha*-*-linux-gnu) 22 if test "$GCC" = yes; then 23 icu_cv_host_frag=mh-alpha-linux-gcc 24 else 25 icu_cv_host_frag=mh-alpha-linux-cc 26 fi ;; 27 powerpc*-*-linux*) 28 if test "$GCC" = yes; then 29 icu_cv_host_frag=mh-linux 30 else 31 icu_cv_host_frag=mh-linux-va 32 fi ;; 33 *-*-linux*|*-*-gnu|*-*-k*bsd*-gnu|*-*-kopensolaris*-gnu) icu_cv_host_frag=mh-linux ;; 34 *-*-cygwin|*-*-mingw32) 35 if test "$GCC" = yes; then 36 AC_TRY_COMPILE([ 37 #ifndef __MINGW32__ 38 #error This is not MinGW 39 #endif], [], icu_cv_host_frag=mh-mingw, icu_cv_host_frag=mh-cygwin) 40 else 41 icu_cv_host_frag=mh-cygwin-msvc 42 fi ;; 43 *-*-*bsd*|*-*-dragonfly*) icu_cv_host_frag=mh-bsd-gcc ;; 44 *-*-aix*) 45 if test "$GCC" = yes; then 46 icu_cv_host_frag=mh-aix-gcc 47 else 48 icu_cv_host_frag=mh-aix-va 49 fi ;; 50 *-*-hpux*) 51 if test "$GCC" = yes; then 52 icu_cv_host_frag=mh-hpux-gcc 53 else 54 case "$CXX" in 55 *aCC) icu_cv_host_frag=mh-hpux-acc ;; 56 esac 57 fi ;; 58 *-*ibm-openedition*|*-*-os390*) icu_cv_host_frag=mh-os390 ;; 59 *-*-os400*) icu_cv_host_frag=mh-os400 ;; 60 *-apple-rhapsody*) icu_cv_host_frag=mh-darwin ;; 61 *-apple-darwin*) icu_cv_host_frag=mh-darwin ;; 62 *-*-beos) icu_cv_host_frag=mh-beos ;; 63 *-*-haiku) icu_cv_host_frag=mh-haiku ;; 64 *-*-irix*) icu_cv_host_frag=mh-irix ;; 65 *-dec-osf*) icu_cv_host_frag=mh-alpha-osf ;; 66 *-*-nto*) icu_cv_host_frag=mh-qnx ;; 67 *-ncr-*) icu_cv_host_frag=mh-mpras ;; 68 *) icu_cv_host_frag=mh-unknown ;; 69 esac 70 ] 71 ) 72 ]) 73 74 # ICU_CONDITIONAL - similar example taken from Automake 1.4 75 AC_DEFUN(ICU_CONDITIONAL, 76 [AC_SUBST($1_TRUE) 77 if $2; then 78 $1_TRUE= 79 else 80 $1_TRUE='#' 81 fi]) 82 83 # ICU_PROG_LINK - Make sure that the linker is usable 84 AC_DEFUN(ICU_PROG_LINK, 85 [ 86 case "${host}" in 87 *-*-cygwin*|*-*-mingw*) 88 if test "$GCC" != yes && test -n "`link --version 2>&1 | grep 'GNU coreutils'`"; then 89 AC_MSG_ERROR([link.exe is not a valid linker. Your PATH is incorrect. 90 Please follow the directions in ICU's readme.]) 91 fi;; 92 *);; 93 esac]) 94 95 # AC_SEARCH_LIBS_FIRST(FUNCTION, SEARCH-LIBS [, ACTION-IF-FOUND 96 # [, ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]]) 97 # Search for a library defining FUNC, then see if it's not already available. 98 99 AC_DEFUN(AC_SEARCH_LIBS_FIRST, 100 [AC_PREREQ([2.13]) 101 AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1], 102 [ac_func_search_save_LIBS="$LIBS" 103 ac_cv_search_$1="no" 104 for i in $2; do 105 LIBS="-l$i $5 $ac_func_search_save_LIBS" 106 AC_TRY_LINK_FUNC([$1], 107 [ac_cv_search_$1="-l$i" 108 break]) 109 done 110 if test "$ac_cv_search_$1" = "no"; then 111 AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1="none required"]) 112 fi 113 LIBS="$ac_func_search_save_LIBS"]) 114 if test "$ac_cv_search_$1" != "no"; then 115 test "$ac_cv_search_$1" = "none required" || LIBS="$ac_cv_search_$1 $LIBS" 116 $3 117 else : 118 $4 119 fi]) 120 121 122 123 # Check if we can build and use 64-bit libraries 124 AC_DEFUN(AC_CHECK_64BIT_LIBS, 125 [ 126 BITS_REQ=nochange 127 ENABLE_64BIT_LIBS=unknown 128 ## revisit this for cross-compile. 129 130 AC_ARG_ENABLE(64bit-libs, 131 [ --enable-64bit-libs (deprecated, use --with-library-bits) build 64-bit libraries [default= platform default]], 132 [echo "note, use --with-library-bits instead of --*-64bit-libs" 133 case "${enableval}" in 134 no|false|32) with_library_bits=32; ;; 135 yes|true|64) with_library_bits=64else32 ;; 136 nochange) with_library_bits=nochange; ;; 137 *) AC_MSG_ERROR(bad value ${enableval} for '--*-64bit-libs') ;; 138 esac] ) 139 140 141 AC_ARG_WITH(library-bits, 142 [ --with-library-bits=bits specify how many bits to use for the library (32, 64, 64else32, nochange) [default=nochange]], 143 [case "${withval}" in 144 ""|nochange) BITS_REQ=$withval ;; 145 32|64|64else32) BITS_REQ=$withval ;; 146 *) AC_MSG_ERROR(bad value ${withval} for --with-library-bits) ;; 147 esac]) 148 149 # don't use these for cross compiling 150 if test "$cross_compiling" = "yes" -a "${BITS_REQ}" != "nochange"; then 151 AC_MSG_ERROR([Don't specify bitness when cross compiling. See readme.html for help with cross compilation., and set compiler options manually.]) 152 fi 153 AC_CHECK_SIZEOF([void *]) 154 AC_MSG_CHECKING([whether runnable 64 bit binaries are built by default]) 155 case $ac_cv_sizeof_void_p in 156 8) DEFAULT_64BIT=yes ;; 157 4) DEFAULT_64BIT=no ;; 158 *) DEFAULT_64BIT=unknown 159 esac 160 BITS_GOT=unknown 161 162 # 'OK' here means, we can exit any further checking, everything's copa 163 BITS_OK=yes 164 165 # do we need to check for buildable/runnable 32 or 64 bit? 166 BITS_CHECK_32=no 167 BITS_CHECK_64=no 168 169 # later, can we run the 32/64 bit binaries so made? 170 BITS_RUN_32=no 171 BITS_RUN_64=no 172 173 if test "$DEFAULT_64BIT" = "yes"; then 174 # we get 64 bits by default. 175 BITS_GOT=64 176 case "$BITS_REQ" in 177 32) 178 # need to look for 32 bit support. 179 BITS_CHECK_32=yes 180 # not copa. 181 BITS_OK=no;; 182 # everyone else is happy. 183 nochange) ;; 184 *) ;; 185 esac 186 elif test "$DEFAULT_64BIT" = "no"; then 187 # not 64 bit by default. 188 BITS_GOT=32 189 case "$BITS_REQ" in 190 64|64else32) 191 BITS_CHECK_64=yes 192 #BITS_CHECK_32=yes 193 BITS_OK=no;; 194 nochange) ;; 195 *) ;; 196 esac 197 elif test "$DEFAULT_64BIT" = "unknown"; then 198 # cross compiling. 199 BITS_GOT=unknown 200 case "$BITS_REQ" in 201 64|64else32) BITS_OK=no 202 BITS_CHECK_32=yes 203 BITS_CHECK_64=yes ;; 204 32) BITS_OK=no;; 205 nochange) ;; 206 *) ;; 207 esac 208 fi 209 210 AC_MSG_RESULT($DEFAULT_64BIT); 211 212 if test "$BITS_OK" != "yes"; then 213 # not copa. back these up. 214 CFLAGS_OLD="${CFLAGS}" 215 CXXFLAGS_OLD="${CXXFLAGS}" 216 LDFLAGS_OLD="${LDFLAGS}" 217 ARFLAGS_OLD="${ARFLAGS}" 218 219 CFLAGS_32="${CFLAGS}" 220 CXXFLAGS_32="${CXXFLAGS}" 221 LDFLAGS_32="${LDFLAGS}" 222 ARFLAGS_32="${ARFLAGS}" 223 224 CFLAGS_64="${CFLAGS}" 225 CXXFLAGS_64="${CXXFLAGS}" 226 LDFLAGS_64="${LDFLAGS}" 227 ARFLAGS_64="${ARFLAGS}" 228 229 CAN_BUILD_64=unknown 230 CAN_BUILD_32=unknown 231 # These results can't be cached because is sets compiler flags. 232 if test "$BITS_CHECK_64" = "yes"; then 233 AC_MSG_CHECKING([how to build 64-bit executables]) 234 CAN_BUILD_64=no 235 #### 236 # Find out if we think we can *build* for 64 bit. Doesn't check whether we can run it. 237 # Note, we don't have to actually check if the options work- we'll try them before using them. 238 # So, only try actually testing the options, if you are trying to decide between multiple options. 239 # On exit from the following clauses: 240 # if CAN_BUILD_64=yes: 241 # *FLAGS are assumed to contain the right settings for 64bit 242 # else if CAN_BUILD_64=no: (default) 243 # *FLAGS are assumed to be trashed, and will be reset from *FLAGS_OLD 244 245 if test "$GCC" = yes; then 246 CFLAGS="${CFLAGS} -m64" 247 CXXFLAGS="${CXXFLAGS} -m64" 248 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])], 249 CAN_BUILD_64=yes, CAN_BUILD_64=no) 250 else 251 case "${host}" in 252 sparc*-*-solaris*) 253 # 1. try -m64 254 CFLAGS="${CFLAGS} -m64" 255 CXXFLAGS="${CXXFLAGS} -m64" 256 AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])], 257 CAN_BUILD_64=yes, CAN_BUILD_64=no, CAN_BUILD_64=unknown) 258 if test "$CAN_BUILD_64" != yes; then 259 # Nope. back out changes. 260 CFLAGS="${CFLAGS_OLD}" 261 CXXFLAGS="${CFLAGS_OLD}" 262 # 2. try xarch=v9 [deprecated] 263 ## TODO: cross compile: the following won't work. 264 SPARCV9=`isainfo -n 2>&1 | grep sparcv9` 265 SOL64=`$CXX -xarch=v9 2>&1 && $CC -xarch=v9 2>&1 | grep -v usage:` 266 # "Warning: -xarch=v9 is deprecated, use -m64 to create 64-bit programs" 267 if test -z "$SOL64" && test -n "$SPARCV9"; then 268 CFLAGS="${CFLAGS} -xtarget=ultra -xarch=v9" 269 CXXFLAGS="${CXXFLAGS} -xtarget=ultra -xarch=v9" 270 LDFLAGS="${LDFLAGS} -xtarget=ultra -xarch=v9" 271 CAN_BUILD_64=yes 272 fi 273 fi 274 ;; 275 i386-*-solaris*) 276 # 1. try -m64 277 CFLAGS="${CFLAGS} -m64" 278 CXXFLAGS="${CXXFLAGS} -m64" 279 AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])], 280 CAN_BUILD_64=yes, CAN_BUILD_64=no, CAN_BUILD_64=unknown) 281 if test "$CAN_BUILD_64" != yes; then 282 # Nope. back out changes. 283 CFLAGS="${CFLAGS_OLD}" 284 CXXFLAGS="${CXXFLAGS_OLD}" 285 # 2. try the older compiler option 286 ## TODO: cross compile problem 287 AMD64=`isainfo -n 2>&1 | grep amd64` 288 SOL64=`$CXX -xtarget=generic64 2>&1 && $CC -xtarget=generic64 2>&1 | grep -v usage:` 289 if test -z "$SOL64" && test -n "$AMD64"; then 290 CFLAGS="${CFLAGS} -xtarget=generic64" 291 CXXFLAGS="${CXXFLAGS} -xtarget=generic64" 292 CAN_BUILD_64=yes 293 fi 294 fi 295 ;; 296 ia64-*-linux*) 297 # check for ecc/ecpc compiler support 298 ## TODO: cross compiler problem 299 if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Intel`"; then 300 if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Itanium`"; then 301 CAN_BUILD_64=yes 302 fi 303 fi 304 ;; 305 *-*-cygwin) 306 # vcvarsamd64.bat should have been used to enable 64-bit builds. 307 # We only do this check to display the correct answer. 308 ## TODO: cross compiler problem 309 if test -n "`$CXX -help 2>&1 | grep 'for x64'`"; then 310 CAN_BUILD_64=yes 311 fi 312 ;; 313 *-*-aix*|powerpc64-*-linux*) 314 CFLAGS="${CFLAGS} -q64" 315 CXXFLAGS="${CXXFLAGS} -q64" 316 LDFLAGS="${LDFLAGS} -q64" 317 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])], 318 CAN_BUILD_64=yes, CAN_BUILD_64=no) 319 if test "$CAN_BUILD_64" = yes; then 320 # worked- set other options. 321 case "${host}" in 322 *-*-aix*) 323 # tell AIX what executable mode to use. 324 ARFLAGS="${ARFLAGS} -X64" 325 esac 326 fi 327 ;; 328 *-*-hpux*) 329 # First we try the newer +DD64, if that doesn't work, 330 # try other options. 331 332 CFLAGS="${CFLAGS} +DD64" 333 CXXFLAGS="${CXXFLAGS} +DD64" 334 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])], 335 CAN_BUILD_64=yes, CAN_BUILD_64=no) 336 if test "$CAN_BUILD_64" != yes; then 337 # reset 338 CFLAGS="${CFLAGS_OLD}" 339 CXXFLAGS="${CXXFLAGS_OLD}" 340 # append 341 CFLAGS="${CFLAGS} +DA2.0W" 342 CXXFLAGS="${CXXFLAGS} +DA2.0W" 343 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])], 344 CAN_BUILD_64=yes, CAN_BUILD_64=no) 345 fi 346 ;; 347 *-*ibm-openedition*|*-*-os390*) 348 CFLAGS="${CFLAGS} -Wc,lp64" 349 CXXFLAGS="${CXXFLAGS} -Wc,lp64" 350 LDFLAGS="${LDFLAGS} -Wl,lp64" 351 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])], 352 CAN_BUILD_64=yes, CAN_BUILD_64=no) 353 ;; 354 *) 355 # unknown platform. 356 ;; 357 esac 358 fi 359 AC_MSG_RESULT($CAN_BUILD_64) 360 if test "$CAN_BUILD_64" = yes; then 361 AC_MSG_CHECKING([whether runnable 64-bit binaries are being built ]) 362 AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])], 363 BITS_RUN_64=yes, BITS_RUN_64=no, BITS_RUN_64=unknown) 364 AC_MSG_RESULT($BITS_RUN_64); 365 366 CFLAGS_64="${CFLAGS}" 367 CXXFLAGS_64="${CXXFLAGS}" 368 LDFLAGS_64="${LDFLAGS}" 369 ARFLAGS_64="${ARFLAGS}" 370 fi 371 # put it back. 372 CFLAGS="${CFLAGS_OLD}" 373 CXXFLAGS="${CXXFLAGS_OLD}" 374 LDFLAGS="${LDFLAGS_OLD}" 375 ARFLAGS="${ARFLAGS_OLD}" 376 fi 377 if test "$BITS_CHECK_32" = "yes"; then 378 # see comment under 'if BITS_CHECK_64', above. 379 AC_MSG_CHECKING([how to build 32-bit executables]) 380 if test "$GCC" = yes; then 381 CFLAGS="${CFLAGS} -m32" 382 CXXFLAGS="${CXXFLAGS} -m32" 383 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==32)?0:1;}])], 384 CAN_BUILD_32=yes, CAN_BUILD_32=no) 385 fi 386 AC_MSG_RESULT($CAN_BUILD_32) 387 if test "$CAN_BUILD_32" = yes; then 388 AC_MSG_CHECKING([whether runnable 32-bit binaries are being built ]) 389 AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==32)?0:1;}])], 390 BITS_RUN_32=yes, BITS_RUN_32=no, BITS_RUN_32=unknown) 391 AC_MSG_RESULT($BITS_RUN_32); 392 CFLAGS_32="${CFLAGS}" 393 CXXFLAGS_32="${CXXFLAGS}" 394 LDFLAGS_32="${LDFLAGS}" 395 ARFLAGS_32="${ARFLAGS}" 396 fi 397 # put it back. 398 CFLAGS="${CFLAGS_OLD}" 399 CXXFLAGS="${CXXFLAGS_OLD}" 400 LDFLAGS="${LDFLAGS_OLD}" 401 ARFLAGS="${ARFLAGS_OLD}" 402 fi 403 404 ## 405 # OK. Now, we've tested for 32 and 64 bitness. Let's see what we'll do. 406 # 407 408 # First, implement 64else32 409 if test "$BITS_REQ" = "64else32"; then 410 if test "$BITS_RUN_64" = "yes"; then 411 BITS_REQ=64 412 else 413 # no changes. 414 BITS_OK=yes 415 fi 416 fi 417 418 # implement. 419 if test "$BITS_REQ" = "32" -a "$BITS_RUN_32" = "yes"; then 420 CFLAGS="${CFLAGS_32}" 421 CXXFLAGS="${CXXFLAGS_32}" 422 LDFLAGS="${LDFLAGS_32}" 423 ARFLAGS="${ARFLAGS_32}" 424 BITS_OK=yes 425 elif test "$BITS_REQ" = "64" -a "$BITS_RUN_64" = "yes"; then 426 CFLAGS="${CFLAGS_64}" 427 CXXFLAGS="${CXXFLAGS_64}" 428 LDFLAGS="${LDFLAGS_64}" 429 ARFLAGS="${ARFLAGS_64}" 430 BITS_OK=yes 431 elif test "$BITS_OK" != "yes"; then 432 AC_MSG_ERROR([Requested $BITS_REQ bit binaries but could not compile and execute them. See readme.html for help with cross compilation., and set compiler options manually.]) 433 fi 434 fi 435 ]) 436 437 # Strict compilation options. 438 AC_DEFUN(AC_CHECK_STRICT_COMPILE, 439 [ 440 AC_MSG_CHECKING([whether strict compiling is on]) 441 AC_ARG_ENABLE(strict,[ --enable-strict compile with strict compiler options [default=yes]], [ 442 if test "$enableval" = no 443 then 444 ac_use_strict_options=no 445 else 446 ac_use_strict_options=yes 447 fi 448 ], [ac_use_strict_options=yes]) 449 AC_MSG_RESULT($ac_use_strict_options) 450 451 if test "$ac_use_strict_options" = yes 452 then 453 if test "$GCC" = yes 454 then 455 # Do not use -ansi. It limits us to C90, and it breaks some platforms. 456 # We use -std=c99 to disable the gnu99 defaults and its associated warnings 457 CFLAGS="$CFLAGS -Wall -std=c99 -pedantic -Wshadow -Wpointer-arith -Wmissing-prototypes -Wwrite-strings" 458 else 459 case "${host}" in 460 *-*-cygwin) 461 if test "`$CC /help 2>&1 | head -c9`" = "Microsoft" 462 then 463 CFLAGS="$CFLAGS /W4" 464 fi 465 esac 466 fi 467 if test "$GXX" = yes 468 then 469 CXXFLAGS="$CXXFLAGS -W -Wall -pedantic -Wpointer-arith -Wwrite-strings -Wno-long-long" 470 else 471 case "${host}" in 472 *-*-cygwin) 473 if test "`$CXX /help 2>&1 | head -c9`" = "Microsoft" 474 then 475 CXXFLAGS="$CXXFLAGS /W4" 476 fi 477 esac 478 fi 479 fi 480 ]) 481 482 483
