icuSources/configure.in

   1 # -*-autoconf-*-
   2 AC_COPYRIGHT([ Copyright (c) 1999-2012, International Business Machines Corporation and others. All Rights Reserved. ])
   3 # configure.in for ICU
   4 # Stephen F. Booth, heavily modified by Yves and others
   5
   6 # Check for autoconf version
   7 AC_PREREQ(2.68)
   8
   9 # Process this file with autoconf to produce a configure script
  10 AC_INIT([ICU])
  11
  12 #TODO: IcuBug:8502
  13 #AC_INIT([ICU],
  14 #        m4_esyscmd_s([sed -n 's/^[     ]*#[    ]*define[       ]*U_ICU_VERSION[        ]*"\([^"]*\)".*/\1/p' "./common/unicode/uvernum.h]"),
  15 #        [http://icu-project.org/bugs],
  16 #        [International Components for Unicode],
  17 #        [http://icu-project.org])
  18
  19 AC_CONFIG_SRCDIR([common/unicode/utypes.h])
  20
  21 PACKAGE="icu"
  22 AC_SUBST(PACKAGE)
  23
  24 # Use custom echo test for newline option
  25 # Current autoconf (2.65) gives incorrect echo newline option
  26 # for icu-config
  27 # This may be removed later - mow (June 17, 2010)
  28 ICU_ECHO_C= ICU_ECHO_N= ICU_ECHO_T=
  29 case `/bin/sh -c "echo -n x"` in
  30 -n*)
  31   case `/bin/sh -c "echo 'x\c'"` in
  32   *c*) ICU_ECHO_T=' ';;     # ECHO_T is single tab character.
  33   *)   ICU_ECHO_C='\c';;
  34   esac;;
  35 *)
  36   ICU_ECHO_N='-n';;
  37 esac
  38 AC_SUBST(ICU_ECHO_N)
  39 AC_SUBST(ICU_ECHO_C)
  40 AC_SUBST(ICU_ECHO_T)
  41
  42 AC_MSG_CHECKING(for ICU version numbers)
  43
  44 # Get the ICU version from uversion.h or other headers
  45 geticuversion() {
  46     [sed -n 's/^[       ]*#[    ]*define[       ]*U_ICU_VERSION[        ]*"\([^"]*\)".*/\1/p' "$@"]
  47 }
  48 getuversion() {
  49     [sed -n 's/^[       ]*#[    ]*define[       ]*U_UNICODE_VERSION[    ]*"\([^"]*\)".*/\1/p' "$@"]
  50 }
  51 VERSION=`geticuversion $srcdir/common/unicode/uvernum.h`
  52 if test x"$VERSION" = x; then
  53    as_fn_error $? "Cannot determine ICU version number from uvernum.h header file" "$LINENO" 5
  54 fi
  55
  56 #TODO: IcuBug:8502
  57 #if test "$VERSION" != "$PACKAGE_VERSION"; then
  58 #   AC_MSG_ERROR([configure was generated for $PACKAGE_VERSION but uvernum.h has $VERSION - please rerun autoconf])
  59 #fi
  60
  61 UNICODE_VERSION=`getuversion $srcdir/common/unicode/uchar.h`
  62 if test x"$UNICODE_VERSION" = x; then
  63     AC_MSG_ERROR([Cannot determine Unicode version number from uchar.h header file])
  64 fi
  65 # Compute a reasonable library version from the release version. This is
  66 # very bad, but that's wanted... We want to make sure that the LIB_VERSION
  67 # has at least a dot in it, so we'll add a .0 if needed.
  68 #[LIB_VERSION=`echo $VERSION | sed -e 's/\.//' -e 's/^\([^.]*\)$/\1.0/'`]
  69 LIB_VERSION=$VERSION
  70 LIB_VERSION_MAJOR=`echo $LIB_VERSION | sed 's/\..*//'`
  71 AC_SUBST(VERSION)
  72 AC_SUBST(LIB_VERSION)
  73 AC_SUBST(LIB_VERSION_MAJOR)
  74 AC_MSG_RESULT([release $VERSION, library $LIB_VERSION, unicode version $UNICODE_VERSION])
  75
  76 AC_SUBST(UNICODE_VERSION)
  77
  78 # Determine the host system
  79 AC_CANONICAL_HOST
  80
  81 AC_SUBST(CPPFLAGS)
  82
  83 # This variable is needed on z/OS because the C++ compiler only recognizes .C
  84 _CXX_CXXSUFFIX=cpp
  85 export _CXX_CXXSUFFIX
  86
  87 # Accumulate #defines
  88 CONFIG_CPPFLAGS=""
  89 UCONFIG_CPPFLAGS=""
  90
  91 # Check whether to build debug libraries
  92 AC_MSG_CHECKING([whether to build debug libraries])
  93 enabled=no
  94 ENABLE_DEBUG=0
  95 AC_ARG_ENABLE(debug,
  96     [  --enable-debug          build debug libraries and enable the U_DEBUG define [default=no]],
  97     [ case "${enableval}" in
  98          yes|"") enabled=yes; ENABLE_DEBUG=1; CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DU_DEBUG=1" ;;
  99          *) ;;
 100     esac],
 101 )
 102 AC_MSG_RESULT($enabled)
 103 AC_SUBST(ENABLE_DEBUG)
 104
 105 # Check whether to build release libraries
 106 AC_MSG_CHECKING([whether to build release libraries])
 107 enabled=yes
 108 ENABLE_RELEASE=1
 109 AC_ARG_ENABLE(release,
 110     [  --enable-release        build release libraries [default=yes]],
 111     [ case "${enableval}" in
 112          no) enabled=no; ENABLE_RELEASE=0 ;;
 113          *) ;;
 114     esac],
 115 )
 116 AC_MSG_RESULT($enabled)
 117 AC_SUBST(ENABLE_RELEASE)
 118
 119 # Don't use the default C/CXXFLags
 120 : ${CFLAGS=""}
 121 : ${CXXFLAGS=""}
 122
 123 # Checks for compilers
 124 AC_PROG_CC([clang gcc cc c99 c89 xlc_r xlc cl.exe icc])
 125 # Make sure that we try clang++ first, which provides C++11 support.
 126 # The g++ compiler is less likely to support C++11.
 127 AC_PROG_CXX([clang++ g++ c++ gpp xlC_r xlC aCC CC cxx cc++ cl.exe icc FCC KCC RCC])
 128
 129 # Ensure that if CXXFLAGS/CFLAGS were not set when calling configure, set it correctly based on (enable/disable) debug or release option
 130 # The release mode use is the default one for autoconf
 131 if test "$GCC" = yes; then
 132     if test "$CFLAGS" = ""; then
 133         if test "$ENABLE_DEBUG" = 1; then
 134             CFLAGS=-g
 135         fi
 136         if test "$ENABLE_RELEASE" = 1; then
 137             CFLAGS="$CFLAGS -O2"
 138         fi
 139     fi
 140     if test "$CXXFLAGS" = ""; then
 141         if test "$ENABLE_DEBUG" = 1; then
 142             CXXFLAGS=-g
 143         fi
 144         if test "$ENABLE_RELEASE" = 1; then
 145             CXXFLAGS="$CXXFLAGS -O2"
 146         fi
 147     fi
 148 fi
 149
 150 AC_PROG_CPP
 151
 152 AC_PROG_INSTALL
 153
 154 AC_SUBST(cross_compiling)
 155
 156 dnl use the pld hack to get ac_fn_cxx_try_link defined globally and not local
 157 AC_LANG_PUSH([C++])
 158 AC_LINK_IFELSE([AC_LANG_PROGRAM()])
 159 AC_LANG_POP([C++])
 160
 161 # make sure install is relative to srcdir - if a script
 162 if test "$srcdir" = "."; then
 163   # If srcdir isn't just ., then (srcdir) is already prepended.
 164   if test "${ac_install_sh}" = "${INSTALL}"; then
 165    INSTALL="\\\$(top_srcdir)/${ac_install_sh}"
 166   fi
 167 fi
 168
 169 #AC_CHECK_PROG(AUTOCONF, autoconf, autoconf, true)
 170 #AC_CHECK_PROG(STRIP, strip, strip, true)
 171
 172 # Check for the platform make
 173 AC_PATH_PROGS(U_MAKE, gmake gnumake, make)
 174 AC_SUBST(U_MAKE)
 175
 176
 177 AC_ARG_WITH(cross-build,
 178         [  --with-cross-build=dir specify an absolute path to the build directory of an ICU built for the current platform [default=no cross dir]],
 179         [cross_buildroot="${withval}"],
 180         [cross_buildroot=""])
 181
 182 if test "X$cross_buildroot" = "X"; then
 183     if test "$cross_compiling" = "yes"; then
 184         AC_MSG_ERROR([Error! Cross compiling but no --with-cross-build option specified - please supply the path to an executable ICU's build root])
 185         dnl '
 186     fi
 187 else
 188     if test -f "${cross_buildroot}/config/icucross.mk"; then
 189         AC_MSG_RESULT([Using cross buildroot: $cross_buildroot])
 190     else
 191         if test -d "${cross_buildroot}"; then
 192             AC_MSG_ERROR([${cross_buildroot}/config/icucross.mk not found. Please build ICU in ${cross_buildroot} first.])
 193         else
 194             AC_MSG_ERROR([No such directory ${cross_buildroot} supplied as the argument to --with-cross-build. Use an absolute path.])
 195         fi
 196     fi
 197 fi
 198 AC_SUBST(cross_buildroot)
 199
 200 # Check for doxygen to generate documentation
 201 AC_PATH_PROG(DOXYGEN,doxygen,,$PATH:/usr/local/bin:/usr/bin)
 202
 203 # Check that the linker is usable
 204 ICU_PROG_LINK
 205
 206 # Determine the executable suffix
 207 # We don't use AC_EXEEXT because some compilers output separate debugging
 208 # files, which confuses the AC_EXEEXT macro.
 209 AC_MSG_CHECKING(checking for executable suffix)
 210 case "${host}" in
 211     *-*-cygwin*|*-*-mingw*)  EXEEXT=.exe ;;
 212     *)      EXEEXT="" ;;
 213 esac
 214 ac_exeext=$EXEEXT
 215 AC_MSG_RESULT($EXEEXT)
 216 AC_SUBST(EXEEXT)
 217
 218 # Determine how strict we want to be when compiling
 219 AC_CHECK_STRICT_COMPILE
 220
 221 # Check if we can build and use 64-bit libraries
 222 AC_CHECK_64BIT_LIBS
 223 AC_SUBST(ARFLAGS)
 224 AC_SUBST(COMPILE_LINK_ENVVAR)
 225
 226 # Determine the Makefile fragment
 227 ICU_CHECK_MH_FRAG
 228
 229 # Checks for libraries and other host specific stuff
 230 # On HP/UX, don't link to -lm from a shared lib because it isn't
 231 #  PIC (at least on 10.2)
 232 case "${host}" in
 233         *-*-hpux*)      AC_CHECK_LIB(m, floor, LIB_M="-lm") ;;
 234
 235         *)              AC_CHECK_LIB(m, floor)
 236                         LIB_M="" ;;
 237 esac
 238 AC_SUBST(LIB_M)
 239
 240 # Check whether to build shared libraries
 241 AC_MSG_CHECKING([whether to build shared libraries])
 242 enabled=no
 243 AC_ARG_ENABLE(shared,
 244     [  --enable-shared         build shared libraries [default=yes]],
 245     [ case "${enableval}" in
 246              yes|"") enabled=yes; ENABLE_SHARED=YES ;;
 247              no);;
 248              *) ;;
 249     esac],
 250     [enabled=yes; ENABLE_SHARED=YES]
 251 )
 252 AC_MSG_RESULT($enabled)
 253 AC_SUBST(ENABLE_SHARED)
 254
 255 # Check whether to build static libraries
 256 AC_MSG_CHECKING([whether to build static libraries])
 257 enabled=no
 258 AC_ARG_ENABLE(static,
 259     [  --enable-static         build static libraries [default=no]],
 260     [ case "${enableval}" in
 261              yes|"") enabled=yes; ENABLE_STATIC=YES ;;
 262              no) ;;
 263              *) ;;
 264     esac],
 265 )
 266 AC_MSG_RESULT($enabled)
 267 AC_SUBST(ENABLE_STATIC)
 268
 269 # When building release static library, there might be some optimization flags we can use
 270 if test "$ENABLE_STATIC" = "YES"; then
 271     if test "$ENABLE_SHARED" != "YES"; then
 272         if test "$ENABLE_RELEASE" = 1; then
 273             AC_MSG_CHECKING([whether we can use static library optimization option])
 274             CHECK_STATIC_OPT_FLAG=no
 275
 276             OLD_CPPFLAGS="${CPPFLAGS}"
 277             OLD_LDFLAGS="${LDFLAGS}"
 278
 279             case "${host}" in
 280             *-linux*|i*86-*-*bsd*|i*86-pc-gnu)
 281                 if test "$GCC" = yes; then
 282                     CPPFLAGS="${CPPFLAGS} -ffunction-sections -fdata-sections"
 283                     LDFLAGS="${LDFLAGS} -Wl,--gc-sections"
 284                 fi
 285                 ;;
 286             *)
 287                 ;;
 288             esac
 289
 290             AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [CHECK_STATIC_OPT_FLAG=yes], [CHECK_STATIC_OPT_FLAG=no])
 291             AC_MSG_RESULT($CHECK_STATIC_OPT_FLAG)
 292             if test "$CHECK_STATIC_OPT_FLAG" = no; then
 293                 CPPFLAGS="${OLD_CPPFLAGS}"
 294                 LDFLAGS="${OLD_LDFLAGS}"
 295             fi
 296         fi
 297     fi
 298 fi
 299
 300
 301 # Check whether to enable auto cleanup of libraries
 302 AC_MSG_CHECKING([whether to enable auto cleanup of libraries])
 303 enabled=no
 304 UCLN_NO_AUTO_CLEANUP=1
 305 AC_ARG_ENABLE(auto-cleanup,
 306     [  --enable-auto-cleanup   enable auto cleanup of libraries [default=no]],
 307     [ case "${enableval}" in
 308          yes) enabled=yes;
 309          CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DUCLN_NO_AUTO_CLEANUP=0";
 310          UCLN_NO_AUTO_CLEANUP=0
 311           ;;
 312          *) ;;
 313     esac],
 314 )
 315 AC_MSG_RESULT($enabled)
 316 AC_SUBST(UCLN_NO_AUTO_CLEANUP)
 317
 318 # MSVC floating-point option
 319 MSVC_RELEASE_FLAG=""
 320 if test $enabled = yes
 321 then
 322     if test $icu_cv_host_frag = mh-cygwin-msvc
 323     then
 324         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 325     #if defined _MSC_VER && _MSC_VER >= 1400
 326     #else
 327     Microsoft Visual C++ < 2005
 328     #endif
 329         ]], [[]])],[MSVC_RELEASE_FLAG="/fp:precise"],[MSVC_RELEASE_FLAG="/Op"])
 330
 331         CFLAGS="${CFLAGS} ${MSVC_RELEASE_FLAG}"
 332         CXXFLAGS="${CXXFLAGS} ${MSVC_RELEASE_FLAG}"
 333     fi
 334 fi
 335
 336 # Check whether to enabled draft APIs
 337 AC_MSG_CHECKING([whether to enable draft APIs])
 338 enabled=yes
 339 U_DEFAULT_SHOW_DRAFT=1
 340 AC_ARG_ENABLE(draft,
 341     [  --enable-draft          enable draft APIs (and internal APIs) [default=yes]],
 342     [ case "${enableval}" in
 343          no) enabled=no; U_DEFAULT_SHOW_DRAFT=0;
 344          CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DU_DEFAULT_SHOW_DRAFT=0"
 345           ;;
 346          *) ;;
 347     esac],
 348 )
 349 AC_MSG_RESULT($enabled)
 350 # Make sure that we can use draft API in ICU.
 351 if test "$U_DEFAULT_SHOW_DRAFT" = 0; then
 352     CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DU_SHOW_DRAFT_API"
 353 fi
 354 AC_SUBST(U_DEFAULT_SHOW_DRAFT)
 355
 356 AC_PROG_RANLIB
 357
 358 # look for 'ar' the proper way
 359 AC_CHECK_TOOL(AR, ar, false)
 360
 361 AC_MSG_CHECKING([whether to enable renaming of symbols])
 362 enabled=yes
 363 U_DISABLE_RENAMING=0
 364 AC_ARG_ENABLE(renaming,
 365     [  --enable-renaming       add a version suffix to symbols [default=yes]],
 366     [ case "${enableval}" in
 367              yes|"") enabled=yes ;;
 368              no) enabled=no; U_DISABLE_RENAMING=1;
 369              UCONFIG_CPPFLAGS="${UCONFIG_CPPFLAGS} -DU_DISABLE_RENAMING=1"
 370               ;;
 371              *) ;;
 372     esac],
 373 )
 374 AC_MSG_RESULT($enabled)
 375 AC_SUBST(U_DISABLE_RENAMING)
 376
 377 AC_MSG_CHECKING([whether to enable function and data tracing])
 378 enabled=no
 379 U_ENABLE_TRACING=0
 380 AC_ARG_ENABLE(tracing,
 381     [  --enable-tracing        enable function and data tracing [default=no]],
 382     [ case "${enableval}" in
 383              yes|"") enabled=yes;
 384                      CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DU_ENABLE_TRACING=1";
 385                      U_ENABLE_TRACING=1 ;;
 386              no) enabled=no; U_ENABLE_TRACING=0 ;;
 387              *) ;;
 388     esac],
 389 )
 390 AC_MSG_RESULT($enabled)
 391 AC_SUBST(U_ENABLE_TRACING)
 392
 393
 394 U_ENABLE_DYLOAD=1
 395 enable=yes
 396 AC_MSG_CHECKING([whether to enable dynamic loading of plugins])
 397 AC_ARG_ENABLE(dyload,
 398     [  --disable-dyload        disable dynamic loading [default=no]],
 399     [ case "${enableval}" in
 400              yes|"")
 401                      U_ENABLE_DYLOAD=1
 402                      enable=yes
 403                      ;;
 404              no)
 405                  U_ENABLE_DYLOAD=0;
 406                  enable=no;
 407                  CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DU_ENABLE_DYLOAD=0";
 408                  ;;
 409              *) ;;
 410     esac],
 411 )
 412 AC_MSG_RESULT($enable)
 413 AC_SUBST(U_ENABLE_DYLOAD)
 414
 415 if test "$enable" = "yes"; then
 416    AC_CHECK_HEADERS([dlfcn.h])
 417    #AC_MSG_RESULT($enabled)
 418    AC_SEARCH_LIBS([dlopen], [dl])
 419    AC_CHECK_FUNCS([dlopen])
 420
 421    if test "x$ac_cv_func_dlopen" != xyes; then
 422       CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DHAVE_DLOPEN=0"
 423    fi
 424 fi
 425
 426 # Check for miscellanous functions.
 427 # So, use for putil / tools only.
 428 # Note that this will generate HAVE_GETTIMEOFDAY, not U_HAVE_GETTIMEOFDAY
 429 AC_CHECK_FUNCS([gettimeofday])
 430
 431
 432 # Check whether to use the evil rpath or not
 433 AC_ARG_ENABLE(rpath,
 434     [  --enable-rpath          use rpath when linking [default is only if necessary]],
 435     [ case "${enableval}" in
 436              yes|"") ENABLE_RPATH=YES ;;
 437              no) ;;
 438              *) ;;
 439     esac],
 440     [ENABLE_RPATH=NO]
 441 )
 442 AC_SUBST(ENABLE_RPATH)
 443
 444
 445
 446 AC_LANG_PUSH([C++])
 447 AC_MSG_CHECKING([[if we have a C++ compiler]])
 448 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[cxx_okay=yes],[cxx_okay=no])
 449 if test $cxx_okay = yes
 450 then
 451         AC_MSG_RESULT([[Good]])
 452 else
 453         AC_MSG_RESULT([[no]])
 454         AC_MSG_ERROR([[C++ compiler $CXX does not work or no compiler found]])
 455 fi
 456
 457 AC_MSG_CHECKING([[if #include <string> works]])
 458 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <string>]], [[]])], [ac_cv_header_stdstring=yes], [ac_cv_header_stdstring=no])
 459 AC_MSG_RESULT($ac_cv_header_stdstring)
 460 if test $ac_cv_header_stdstring = yes
 461 then
 462         U_HAVE_STD_STRING=1
 463 else
 464         U_HAVE_STD_STRING=0
 465         CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_STD_STRING=0"
 466 fi
 467 AC_SUBST(U_HAVE_STD_STRING)
 468 AC_LANG_POP([C++])
 469
 470 # Always build ICU with multi-threading support.
 471 threads=true
 472 ICU_USE_THREADS=1
 473 OLD_LIBS=${LIBS}
 474
 475 if test $threads = true; then
 476   # For Compaq Tru64 (OSF1), we must look for pthread_attr_init
 477   # and must do this before seaching for pthread_mutex_destroy, or
 478   # we will pick up libpthreads.so not libpthread.so
 479   # If this fails, then we must test for HPUX specials, before
 480   # moving on to a more generic test
 481
 482   AC_CHECK_LIB(pthread, pthread_attr_init)
 483   if test $ac_cv_lib_pthread_pthread_attr_init = yes; then
 484     ICU_USE_THREADS=1
 485   else
 486     # Locate the right library for POSIX threads. We look for the
 487     # symbols in the libraries first, because on Solaris libc provides
 488     # pthread_create but libpthread has the real code :(
 489     # AIX uses libpthreads instead of libpthread, and HP/UX uses libpthread
 490     # FreeBSD users may need libpthread if they do not have libc_r.
 491
 492     AC_SEARCH_LIBS_FIRST(pthread_mutex_destroy, pthread pthreads c_r )
 493
 494     if test "$ac_cv_search_pthread_mutex_destroy" != no; then
 495       ICU_USE_THREADS=1
 496     else
 497       # For HP 11
 498       AC_CHECK_LIB(pthread, pthread_mutex_init)
 499       if test $ac_cv_lib_pthread_pthread_mutex_init = yes; then
 500         ICU_USE_THREADS=1
 501       fi
 502     fi
 503
 504     AC_CHECK_FUNC(pthread_mutex_lock)
 505
 506     if test $ac_cv_func_pthread_mutex_lock = yes; then
 507       ICU_USE_THREADS=1
 508     fi
 509   fi
 510   # Check to see if we are using CygWin with MSVC
 511   case "${host}" in
 512   *-pc-cygwin*|*-pc-mingw*)
 513     # For gcc, the thread options are set by mh-mingw/mh-cygwin
 514     # For msvc, the thread options are set by runConfigureICU
 515     ICU_USE_THREADS=1
 516     ;;
 517   *-*-hpux*)
 518     # Add -mt because it does several nice things on newer compilers.
 519     case "${icu_cv_host_frag}" in
 520       mh-hpux-acc)
 521         OLD_CXXFLAGS="${CXXFLAGS}"
 522         CXXFLAGS="${CXXFLAGS} -mt"
 523         if test x"`${CXX} ${CXXFLAGS} 2>&1`" != x""; then
 524            CXXFLAGS="${OLD_CXXFLAGS}"
 525        fi
 526       ;;
 527     esac
 528     ;;
 529   *-*-solaris*)
 530     case "${icu_cv_host_frag}" in
 531       mh-solaris)
 532            LIBS="${LIBS} -mt"
 533       ;;
 534     esac
 535     ;;
 536   esac
 537 fi
 538
 539 AC_ARG_ENABLE(weak-threads,
 540         [  --enable-weak-threads   weakly reference the threading library [default=no]],
 541         [case "${enableval}" in
 542                 yes)
 543             LIB_THREAD="${LIBS%${OLD_LIBS}}"
 544             LIBS=${OLD_LIBS}
 545             ;;
 546                 no)  ;;
 547                 *) AC_MSG_ERROR(bad value ${enableval} for --enable-weak-threads) ;;
 548                 esac])
 549 AC_SUBST(LIB_THREAD)
 550
 551 # Check for mmap()
 552
 553 # The AC_FUNC_MMAP macro doesn't work properly.  It seems to be too specific.
 554 # Do this check instead.
 555 HAVE_MMAP=0
 556 AC_MSG_CHECKING([for mmap])
 557 AC_CACHE_VAL(ac_cv_func_mmap_ok,
 558     [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>
 559 #include <sys/mman.h>
 560 #include <sys/stat.h>
 561 #include <fcntl.h>], [mmap((void *)0, 0, PROT_READ, 0, 0, 0);])],[ac_cv_func_mmap_ok=yes],[ac_cv_func_mmap_ok=no])] )
 562 AC_MSG_RESULT($ac_cv_func_mmap_ok)
 563 if test $ac_cv_func_mmap_ok = yes
 564 then
 565     HAVE_MMAP=1
 566 else
 567     CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_MMAP=0"
 568 fi
 569 AC_SUBST(HAVE_MMAP)
 570
 571 AC_MSG_CHECKING([for genccode assembly])
 572
 573 # Check to see if genccode can generate simple assembly.
 574 GENCCODE_ASSEMBLY=
 575 case "${host}" in
 576 *-linux*|*-kfreebsd*-gnu*|i*86-*-*bsd*|i*86-pc-gnu)
 577     if test "$GCC" = yes; then
 578         # We're using gcc, and the simple -a gcc command line works for genccode
 579         GENCCODE_ASSEMBLY="-a gcc"
 580     fi ;;
 581 i*86-*-solaris*)
 582     if test "$GCC" = yes; then
 583         # When using gcc, look if we're also using GNU as.
 584         # When using GNU as, the simple -a gcc command line works for genccode.
 585         asv=`"${CC}" -print-prog-name=as 2>/dev/null`
 586         asv=`"${asv}" --version 2>/dev/null`
 587         case "X${asv}" in
 588         X*GNU*) GENCCODE_ASSEMBLY="-a gcc" ;;
 589         X*) GENCCODE_ASSEMBLY="-a sun-x86" ;;
 590         esac
 591         unset asv
 592     else
 593         GENCCODE_ASSEMBLY="-a sun-x86"
 594     fi ;;
 595 sparc-*-solaris*)
 596     GENCCODE_ASSEMBLY="-a sun"
 597     ;;
 598 ia64-*-hpux*)
 599     GENCCODE_ASSEMBLY="-a aCC-ia64"
 600     ;;
 601 esac
 602 AC_SUBST(GENCCODE_ASSEMBLY)
 603
 604 AC_MSG_RESULT($GENCCODE_ASSEMBLY)
 605
 606 # Checks for header files
 607 AC_CHECK_HEADERS(inttypes.h)
 608 if test $ac_cv_header_inttypes_h = no; then
 609  U_HAVE_INTTYPES_H=0
 610  CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INTTYPES_H=0"
 611 else
 612  U_HAVE_INTTYPES_H=1
 613 fi
 614 if test "$CC" = ccc; then
 615  AC_MSG_RESULT("C compiler set to CCC ${CC}" )
 616  case "${host}" in
 617         alpha*-*-*) U_HAVE_INTTYPES_H=0;
 618         CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INTTYPES_H=0"
 619  esac
 620 fi
 621
 622 AC_SUBST(U_HAVE_INTTYPES_H)
 623
 624 AC_CHECK_HEADERS(dirent.h)
 625 if test $ac_cv_header_dirent_h = no; then
 626  U_HAVE_DIRENT_H=0
 627  CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_DIRENT_H=0"
 628 else
 629  U_HAVE_DIRENT_H=1
 630 fi
 631
 632 AC_SUBST(U_HAVE_DIRENT_H)
 633
 634 # Check for endianness
 635 AC_C_BIGENDIAN()
 636 if test $ac_cv_c_bigendian = no; then
 637 U_IS_BIG_ENDIAN=0
 638 U_ENDIAN_CHAR="l"
 639 else
 640 U_IS_BIG_ENDIAN=1
 641 U_ENDIAN_CHAR="b"
 642 fi
 643 AC_SUBST(U_IS_BIG_ENDIAN)
 644
 645 # Do various POSIX related checks
 646 U_HAVE_NL_LANGINFO_CODESET=0
 647 U_NL_LANGINFO_CODESET=-1
 648 AC_CHECK_FUNC(nl_langinfo,[U_HAVE_NL_LANGINFO=1],[U_HAVE_NL_LANGINFO=0])
 649 dnl AC_SUBST(U_HAVE_NL_LANGINFO)
 650 if test $U_HAVE_NL_LANGINFO -eq 1; then
 651   AC_CACHE_CHECK([for nl_langinfo's argument to obtain the codeset],
 652   ac_cv_nl_langinfo_codeset,
 653   [ac_cv_nl_langinfo_codeset="unknown"
 654   for a in CODESET _NL_CTYPE_CODESET_NAME; do
 655   AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]], [[nl_langinfo($a);]])],[ac_cv_nl_langinfo_codeset="$a"; break],[])]
 656   done)
 657   if test x$ac_cv_nl_langinfo_codeset != xunknown
 658   then
 659       U_HAVE_NL_LANGINFO_CODESET=1
 660       U_NL_LANGINFO_CODESET=$ac_cv_nl_langinfo_codeset
 661       if test "x${ac_cv_nl_langinfo_codeset}" != "xCODESET"
 662       then
 663         CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DNL_LANGINFO_CODESET=${ac_cv_nl_langinfo_codeset}"
 664       fi
 665   else
 666       CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_NL_LANGINFO_CODESET=0"
 667   fi
 668 fi
 669 AC_SUBST(U_HAVE_NL_LANGINFO_CODESET)
 670 AC_SUBST(U_NL_LANGINFO_CODESET)
 671
 672 # Namespace support checks
 673 AC_LANG(C++)
 674 AC_MSG_CHECKING([for namespace support])
 675 AC_CACHE_VAL(ac_cv_namespace_ok,
 676     [AC_LINK_IFELSE([AC_LANG_PROGRAM([namespace x_version {void f(){}}
 677     namespace x = x_version;
 678     using namespace x_version;
 679     ], [f();])],[ac_cv_namespace_ok=yes],[ac_cv_namespace_ok=no])] )
 680 AC_MSG_RESULT($ac_cv_namespace_ok)
 681 if test $ac_cv_namespace_ok = no
 682 then
 683     AC_MSG_ERROR(Namespace support is required to build ICU.)
 684 fi
 685
 686 AC_MSG_CHECKING([for properly overriding new and delete])
 687 U_OVERRIDE_CXX_ALLOCATION=0
 688 U_HAVE_PLACEMENT_NEW=0
 689 AC_CACHE_VAL(ac_cv_override_cxx_allocation_ok,
 690     [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
 691     class UMemory {
 692     public:
 693     void *operator new(size_t size) {return malloc(size);}
 694     void *operator new[](size_t size) {return malloc(size);}
 695     void operator delete(void *p) {free(p);}
 696     void operator delete[](void *p) {free(p);}
 697     };
 698     ]], [])],[ac_cv_override_cxx_allocation_ok=yes],[ac_cv_override_cxx_allocation_ok=no])] )
 699 AC_MSG_RESULT($ac_cv_override_cxx_allocation_ok)
 700 if test $ac_cv_override_cxx_allocation_ok = yes
 701 then
 702     U_OVERRIDE_CXX_ALLOCATION=1
 703     AC_MSG_CHECKING([for placement new and delete])
 704     AC_CACHE_VAL(ac_cv_override_placement_new_ok,
 705         [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
 706         class UMemory {
 707         public:
 708         void *operator new(size_t size) {return malloc(size);}
 709         void *operator new[](size_t size) {return malloc(size);}
 710         void operator delete(void *p) {free(p);}
 711         void operator delete[](void *p) {free(p);}
 712         void * operator new(size_t, void *ptr) { return ptr; }
 713         void operator delete(void *, void *) {}
 714         };
 715         ]], [])],[ac_cv_override_placement_new_ok=yes],[ac_cv_override_placement_new_ok=no])] )
 716     AC_MSG_RESULT($ac_cv_override_placement_new_ok)
 717     if test $ac_cv_override_placement_new_ok = yes
 718     then
 719         U_HAVE_PLACEMENT_NEW=1
 720     else
 721         CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_PLACEMENT_NEW=0"
 722     fi
 723 else
 724     CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_OVERRIDE_CXX_ALLOCATION=0"
 725 fi
 726 AC_SUBST(U_OVERRIDE_CXX_ALLOCATION)
 727 AC_SUBST(U_HAVE_PLACEMENT_NEW)
 728
 729 AC_LANG(C)
 730 AC_CHECK_FUNC(popen)
 731 if test x$ac_cv_func_popen = xyes
 732 then
 733      U_HAVE_POPEN=1
 734 else
 735      CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_POPEN=0"
 736      U_HAVE_POPEN=0
 737 fi
 738 AC_SUBST(U_HAVE_POPEN)
 739
 740 AC_CHECK_FUNC(tzset)
 741 U_HAVE_TZSET=0
 742 if test x$ac_cv_func_tzset = xyes
 743 then
 744     U_TZSET=tzset
 745     U_HAVE_TZSET=1
 746 else
 747     AC_CHECK_FUNC(_tzset)
 748     if test x$ac_cv_func__tzset = xyes
 749     then
 750         U_TZSET=_tzset
 751         U_HAVE_TZSET=1
 752     else
 753       CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_TZSET=0"
 754     fi
 755 fi
 756 AC_SUBST(U_HAVE_TZSET)
 757 AC_SUBST(U_TZSET)
 758
 759 U_HAVE_TZNAME=0
 760 AC_CACHE_CHECK(for tzname,ac_cv_var_tzname,
 761 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#ifndef __USE_POSIX
 762 #define __USE_POSIX
 763 #endif
 764 #include <stdlib.h>
 765 #include <time.h>
 766 #ifndef tzname /* For SGI.  */
 767 extern char *tzname[]; /* RS6000 and others reject char **tzname.  */
 768 #endif]], [atoi(*tzname);])],[ac_cv_var_tzname=yes],[ac_cv_var_tzname=no])])
 769 if test $ac_cv_var_tzname = yes; then
 770   U_TZNAME=tzname
 771   U_HAVE_TZNAME=1
 772 else
 773   AC_CACHE_CHECK(for _tzname,ac_cv_var__tzname,
 774   [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
 775   #include <time.h>
 776   extern char *_tzname[];]], [atoi(*_tzname);])],[ac_cv_var__tzname=yes],[ac_cv_var__tzname=no])])
 777     if test $ac_cv_var__tzname = yes; then
 778       U_TZNAME=_tzname
 779       U_HAVE_TZNAME=1
 780     else
 781      CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_TZNAME=0"
 782     fi
 783 fi
 784 AC_SUBST(U_HAVE_TZNAME)
 785 AC_SUBST(U_TZNAME)
 786
 787 AC_CACHE_CHECK(for timezone,ac_cv_var_timezone,
 788 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#ifndef __USE_POSIX
 789 #define __USE_POSIX
 790 #endif
 791 #ifndef __USE_XOPEN
 792 #define __USE_XOPEN
 793 #endif
 794 #include <time.h>
 795 ], [[timezone = 1;]])],[ac_cv_var_timezone=yes],[ac_cv_var_timezone=no])])
 796 U_HAVE_TIMEZONE=0
 797 if test $ac_cv_var_timezone = yes; then
 798   U_TIMEZONE=timezone
 799   U_HAVE_TIMEZONE=1
 800 else
 801   AC_CACHE_CHECK(for __timezone,ac_cv_var___timezone,
 802   [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[__timezone = 1;]])],[ac_cv_var___timezone=yes],[ac_cv_var___timezone=no])])
 803   if test $ac_cv_var___timezone = yes; then
 804     U_TIMEZONE=__timezone
 805     U_HAVE_TIMEZONE=1
 806   else
 807     AC_CACHE_CHECK(for _timezone,ac_cv_var__timezone,
 808     [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[_timezone = 1;]])],[ac_cv_var__timezone=yes],[ac_cv_var__timezone=no])])
 809     if test $ac_cv_var__timezone = yes; then
 810       U_TIMEZONE=_timezone
 811       U_HAVE_TIMEZONE=1
 812     else
 813      CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_TIMEZONE=0"
 814     fi
 815   fi
 816 fi
 817 AC_SUBST(U_HAVE_TIMEZONE)
 818 AC_SUBST(U_TIMEZONE)
 819
 820 # Checks for typedefs
 821 AC_CHECK_TYPE(int8_t,signed char)
 822 AC_CHECK_TYPE(uint8_t,unsigned char)
 823 AC_CHECK_TYPE(int16_t,signed short)
 824 AC_CHECK_TYPE(uint16_t,unsigned short)
 825 AC_CHECK_TYPE(int32_t,signed long)
 826 AC_CHECK_TYPE(uint32_t,unsigned long)
 827 AC_CHECK_TYPE(int64_t,signed long long)
 828 AC_CHECK_TYPE(uint64_t,unsigned long long)
 829
 830 if test $ac_cv_type_int8_t = no; then
 831 CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INT8_T=0"
 832 fi
 833
 834 if test $ac_cv_type_uint8_t = no; then
 835 CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_UINT8_T=0"
 836 fi
 837
 838 if test $ac_cv_type_int16_t = no; then
 839 CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INT16_T=0"
 840 fi
 841
 842 if test $ac_cv_type_uint16_t = no; then
 843 CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_UINT16_T=0"
 844 fi
 845
 846 if test $ac_cv_type_int32_t = no; then
 847 CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INT32_T=0"
 848 fi
 849
 850 if test $ac_cv_type_uint32_t = no; then
 851 CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_UINT32_T=0"
 852 fi
 853
 854 if test $ac_cv_type_int64_t = no; then
 855 CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INT64_T=0"
 856 fi
 857
 858 if test $ac_cv_type_uint64_t = no; then
 859 CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_UINT64_T=0"
 860 fi
 861
 862 # Do various wchar_t related checks
 863 AC_CHECK_HEADER(wchar.h)
 864 if test "$ac_cv_header_wchar_h" = no
 865 then
 866     U_HAVE_WCHAR_H=0
 867     U_HAVE_WCSCPY=0
 868     CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_WCHAR_H=0 -DU_HAVE_WCSCPY=0"
 869 else
 870     AC_DEFINE([HAVE_WCHAR_H], [1], [wchar.h was found.])
 871     U_HAVE_WCHAR_H=1
 872     # Some broken systems have wchar.h but not some of its functions...
 873     AC_SEARCH_LIBS(wcscpy, wcs w)
 874     if test "$ac_cv_search_wcscpy" != no; then
 875       U_HAVE_WCSCPY=1
 876     else
 877       U_HAVE_WCSCPY=0
 878       CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_WCSCPY=0"
 879     fi
 880 fi
 881 AC_SUBST(U_HAVE_WCHAR_H)
 882 AC_SUBST(U_HAVE_WCSCPY)
 883
 884 AC_CHECK_SIZEOF([wchar_t], 0, [
 885 #if STDC_HEADERS
 886 #include <stddef.h>
 887 #endif
 888 #include <stdlib.h>
 889 #if HAVE_WCHAR_H
 890 #include <string.h>
 891 #include <wchar.h>
 892 #endif])
 893 U_SIZEOF_WCHAR_T=$ac_cv_sizeof_wchar_t
 894 # We do this check to verify that everything is okay.
 895 if test $U_SIZEOF_WCHAR_T = 0; then
 896     if test $U_HAVE_WCHAR_H=1; then
 897        AC_MSG_ERROR(There is wchar.h but the size of wchar_t is 0)
 898     fi
 899 fi
 900
 901 AC_MSG_CHECKING([for UTF-16 string literal support])
 902 U_CHECK_UTF16_STRING=1
 903 CHECK_UTF16_STRING_RESULT="unknown"
 904
 905 case "${host}" in
 906 *-*-aix*|powerpc64-*-linux*)
 907     if test "$GCC" = no; then
 908         OLD_CFLAGS="${CFLAGS}"
 909         OLD_CXXFLAGS="${CXXFLAGS}"
 910         CFLAGS="${CFLAGS} -qutf"
 911         CXXFLAGS="${CXXFLAGS} -qutf"
 912         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[const unsigned short hello[] = u"hello";]], [[]])],[U_CHECK_UTF16_STRING=1],[U_CHECK_UTF16_STRING=0])
 913         if test "$U_CHECK_UTF16_STRING" = 0; then
 914             CFLAGS="${OLD_CFLAGS}"
 915             CXXFLAGS="${OLD_CXXFLAGS}"
 916         else
 917             CHECK_UTF16_STRING_RESULT="-qutf"
 918         fi
 919     fi
 920     ;;
 921 *-*-solaris*)
 922     if test "$GCC" = no; then
 923         OLD_CFLAGS="${CFLAGS}"
 924         OLD_CXXFLAGS="${CXXFLAGS}"
 925         CFLAGS="${CFLAGS} -xustr=ascii_utf16_ushort"
 926         CXXFLAGS="${CXXFLAGS} -xustr=ascii_utf16_ushort"
 927         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[const unsigned short hello[] = U"hello";]], [[]])],[U_CHECK_UTF16_STRING=1],[U_CHECK_UTF16_STRING=0])
 928         if test "$U_CHECK_UTF16_STRING" = 0; then
 929             CFLAGS="${OLD_CFLAGS}"
 930             CXXFLAGS="${OLD_CXXFLAGS}"
 931         else
 932             CHECK_UTF16_STRING_RESULT="-xustr=ascii_utf16_ushort"
 933
 934             # Since we can't detect the availability of this UTF-16 syntax at compile time,
 935             # we depend on configure telling us that we can use it.
 936             # Since we can't ensure ICU users use -xustr=ascii_utf16_ushort,
 937             # we only use this macro within ICU.
 938             # If an ICU user uses icu-config, this feature will be enabled.
 939             CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_CHECK_UTF16_STRING=1"
 940             U_CHECK_UTF16_STRING=0
 941         fi
 942     fi
 943     ;;
 944 *-*-hpux*)
 945     if test "$GCC" = no; then
 946         # The option will be detected at compile time without additional compiler options.
 947         CHECK_UTF16_STRING_RESULT="available"
 948     fi
 949     ;;
 950 *-*-cygwin)
 951     # wchar_t can be used
 952     CHECK_UTF16_STRING_RESULT="available"
 953     ;;
 954 *)
 955     ;;
 956 esac
 957
 958 # GCC >= 4.4 supports UTF16 string literals. The CFLAGS and CXXFLAGS may change in the future.
 959 if test "$CHECK_UTF16_STRING_RESULT" = "unknown"; then
 960     if test "$GCC" = yes; then
 961         OLD_CFLAGS="${CFLAGS}"
 962         CFLAGS="${CFLAGS} -std=gnu99"
 963         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 964 static const char16_t test[] = u"This is a UTF16 literal string.";
 965         ]], [[]])],[CC_UTF16_STRING=1],[CC_UTF16_STRING=0])
 966         if test "$CC_UTF16_STRING" = 1; then
 967             CHECK_UTF16_STRING_RESULT="C only";
 968         else
 969             CFLAGS="${OLD_CFLAGS}"
 970         fi
 971     fi
 972     if test "$GXX" = yes; then
 973         OLD_CXXFLAGS="${CXXFLAGS}"
 974         # -Wno-return-type-c-linkage is desired so that stable ICU API is not warned about.
 975         CXXFLAGS="${CXXFLAGS} -std=c++11"
 976         AC_LANG_PUSH([C++])
 977         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 978 static const char16_t test[] = u"This is a UTF16 literal string.";
 979         ]], [[]])],[CXX_UTF16_STRING=1],[CXX_UTF16_STRING=0])
 980         AC_LANG_POP([C++])
 981         if test "$CXX_UTF16_STRING" = 1; then
 982             if test "$CC_UTF16_STRING" = 1; then
 983                 CHECK_UTF16_STRING_RESULT="available";
 984             else
 985                 CHECK_UTF16_STRING_RESULT="C++ only";
 986             fi
 987         else
 988             CXXFLAGS="${OLD_CXXFLAGS}"
 989         fi
 990     fi
 991 fi
 992 AC_MSG_RESULT($CHECK_UTF16_STRING_RESULT)
 993
 994 # Enable/disable extras
 995 AC_ARG_ENABLE(extras,
 996         [  --enable-extras         build ICU extras [default=yes]],
 997         [case "${enableval}" in
 998                 yes) extras=true ;;
 999                 no)  extras=false ;;
1000                 *) AC_MSG_ERROR(bad value ${enableval} for --enable-extras) ;;
1001                 esac],
1002         extras=true)
1003 ICU_CONDITIONAL(EXTRAS, test "$extras" = true)
1004 AC_ARG_ENABLE(icuio,
1005         [  --enable-icuio          build ICU's icuio library [default=yes]],
1006         [case "${enableval}" in
1007                 yes) icuio=true ;;
1008                 no)  icuio=false ;;
1009                 *) AC_MSG_ERROR(bad value ${enableval} for --enable-icuio) ;;
1010                 esac],
1011         icuio=true)
1012 ICU_CONDITIONAL(ICUIO, test "$icuio" = true)
1013
1014 # Enable/disable layout
1015 AC_ARG_ENABLE(layout,
1016         [  --enable-layout         build ICU's layout library [default=yes]],
1017         [case "${enableval}" in
1018                 yes) layout=true ;;
1019                 no)  layout=false ;;
1020                 *) AC_MSG_ERROR(bad value ${enableval} for --enable-layout) ;;
1021                 esac],
1022         layout=true)
1023 ICU_CONDITIONAL(LAYOUT, test "$layout" = true)
1024
1025 AC_ARG_WITH(data-packaging,
1026         [  --with-data-packaging=type specify how to package ICU data (files, archive, library, static, auto) [default=auto]],
1027         [case "${withval}" in
1028                 files|archive|library) datapackaging=$withval ;;
1029                 auto) datapackaging=$withval ;;
1030                 common) datapackaging=archive ;;
1031                 dll) datapackaging=library ;;
1032                 static) datapackaging=static ;;
1033                 *) AC_MSG_ERROR(bad value ${withval} for --with-data-packaging) ;;
1034                 esac],
1035         [datapackaging=])
1036
1037 # Note:  'thesysconfdir' is an evaluated version, for Man pages, so also for thedatadir, thelibdir, etc..
1038 # thesysconfdir=`eval echo $sysconfdir`
1039 dnl# AC_SUBST(thesysconfdir)
1040 dnl# thelibdir=`test "x$exec_prefix" = xNONE && exec_prefix="$prefix"; eval echo $libdir`
1041 dnl# AC_SUBST(thelibdir)
1042 thedatadir=`eval echo $datadir`
1043 dnl# AC_SUBST(thedatadir)
1044 # Always put raw data files in share/icu/{version}, etc.   Never use lib/icu/{version} for data files.. Actual shared libraries will go in {libdir}.
1045 pkgicudatadir=$datadir
1046 thepkgicudatadir=$thedatadir
1047 AC_SUBST(pkgicudatadir)
1048 AC_SUBST(thepkgicudatadir)
1049
1050 dnl# Shouldn't need the AC_SUBST
1051
1052 if test x"$datapackaging" = x -o x"$datapackaging" = xauto; then
1053         # default to library
1054         datapackaging=library
1055         if test "$ENABLE_STATIC" = "YES"; then
1056                 if test "$ENABLE_SHARED" != "YES"; then
1057                         datapackaging=static
1058                 fi
1059         fi
1060 fi
1061
1062 datapackaging_dir=`eval echo $thedatadir`"/icu/${VERSION}"
1063
1064 datapackaging_msg="(No explaination for mode $datapackaging.)"
1065
1066 datapackaging_msg_path="ICU will look in $datapackaging_dir which is the installation location. Call u_setDataDirectory() or use the ICU_DATA environment variable to override."
1067 datapackaging_msg_set="ICU will use the linked data library. If linked with the stub library located in stubdata/, the application can use udata_setCommonData() or set a data path to override."
1068 datapackaging_howfound="(unknown)"
1069
1070 case "$datapackaging" in
1071     files)
1072     DATA_PACKAGING_MODE=files
1073     datapackaging_msg="ICU data will be stored in individual files."
1074     datapackaging_howfound="$datapackaging_msg_path"
1075     ;;
1076     archive)
1077     DATA_PACKAGING_MODE=common
1078     datapackaging_msg="ICU data will be stored in a single .dat file."
1079     datapackaging_howfound="$datapackaging_msg_path"
1080     ;;
1081     library)
1082     DATA_PACKAGING_MODE=dll
1083     datapackaging_msg="ICU data will be linked with ICU."
1084     if test "$ENABLE_STATIC" = "YES"; then
1085         datapackaging_msg="$datapackaging_msg A static data library will be built. "
1086     fi
1087     if test "$ENABLE_SHARED" = "YES"; then
1088         datapackaging_msg="$datapackaging_msg A shared data library will be built. "
1089     fi
1090     datapackaging_howfound="$datapackaging_msg_set"
1091     ;;
1092     static)
1093     DATA_PACKAGING_MODE=static
1094     datapackaging_msg="ICU data will be stored in a static library."
1095     datapackaging_howfound="$datapackaging_msg_set"
1096     ;;
1097 esac
1098 AC_SUBST(DATA_PACKAGING_MODE)
1099
1100 # Sets a library suffix
1101 AC_MSG_CHECKING([for a library suffix to use])
1102 AC_ARG_WITH(library-suffix,
1103         [  --with-library-suffix=suffix    tag a suffix to the library names [default=]],
1104         [ICULIBSUFFIX="${withval}"],
1105         [ICULIBSUFFIX=])
1106 msg=$ICULIBSUFFIX
1107 if test "$msg" = ""; then
1108     msg=none
1109 fi
1110 AC_MSG_RESULT($msg)
1111 AC_SUBST(ICULIBSUFFIX)
1112 if test "$ICULIBSUFFIX" != ""
1113 then
1114     U_HAVE_LIB_SUFFIX=1
1115     ICULIBSUFFIXCNAME=`echo _$ICULIBSUFFIX | sed 's/[^A-Za-z0-9_]/_/g'`
1116     UCONFIG_CPPFLAGS="${UCONFIG_CPPFLAGS} -DU_HAVE_LIB_SUFFIX=1 -DU_LIB_SUFFIX_C_NAME=${ICULIBSUFFIXCNAME} "
1117 else
1118     U_HAVE_LIB_SUFFIX=0
1119 fi
1120 AC_SUBST(U_HAVE_LIB_SUFFIX)
1121 AC_SUBST(ICULIBSUFFIXCNAME)
1122
1123 # Enable/disable tests
1124 AC_ARG_ENABLE(tests,
1125         [  --enable-tests          build ICU tests [default=yes]],
1126         [case "${enableval}" in
1127                 yes) tests=true ;;
1128                 no)  tests=false ;;
1129                 *) AC_MSG_ERROR(bad value ${enableval} for --enable-tests) ;;
1130                 esac],
1131         tests=true)
1132 ICU_CONDITIONAL(TESTS, test "$tests" = true)
1133
1134 # Enable/disable samples
1135 AC_ARG_ENABLE(samples,
1136         [  --enable-samples        build ICU samples [default=yes]
1137
1138 Additionally, the variable FORCE_LIBS may be set before calling configure.
1139 If set, it will REPLACE any automatic list of libraries.],
1140         [case "${enableval}" in
1141                 yes) samples=true ;;
1142                 no)  samples=false ;;
1143                 *) AC_MSG_ERROR(bad value ${enableval} for --enable-samples) ;;
1144                 esac],
1145         samples=true)
1146 ICU_CONDITIONAL(SAMPLES, test "$samples" = true)
1147
1148 ICUDATA_CHAR=$U_ENDIAN_CHAR
1149
1150 # Platform-specific Makefile setup
1151 # set ICUDATA_CHAR to 'e' for any EBCDIC (which should be big endian) platform.
1152 case "${host}" in
1153         *-*-solaris*)   platform=U_SOLARIS ;;
1154         *-*-linux*|*-*-gnu|*-*-k*bsd*-gnu|*-*-kopensolaris*-gnu)        platform=U_LINUX ;;
1155         *-*-*bsd*|*-*-dragonfly*)       platform=U_BSD ;;
1156         *-*-aix*)       platform=U_AIX ;;
1157         *-*-hpux*)      platform=U_HPUX ;;
1158         *-apple-darwin*|*-apple-rhapsody*)      platform=U_DARWIN ;;
1159         *-*-cygwin*)    platform=U_CYGWIN ;;
1160         *-*-mingw*)     platform=U_MINGW ;;
1161         *-*ibm-openedition*|*-*-os390*) platform=OS390
1162                         if test "${ICU_ENABLE_ASCII_STRINGS}" != "1"; then
1163                                 ICUDATA_CHAR="e"
1164                         fi ;;
1165         *-*-os400*)     platform=OS400
1166                         if test "${ICU_ENABLE_ASCII_STRINGS}" != "1"; then
1167                                 ICUDATA_CHAR="e"
1168                         fi ;;
1169         *-*-nto*)       platform=U_QNX ;;
1170         *-dec-osf*)     platform=U_OSF ;;
1171         *-*-beos)               platform=U_BEOS ;;
1172         *-*-irix*)              platform=U_IRIX ;;
1173         *-ncr-*)                platform=U_MPRAS ;;
1174         *)              platform=U_UNKNOWN_PLATFORM ;;
1175 esac
1176 AC_SUBST(ICUDATA_CHAR)
1177 AC_SUBST(platform)
1178 platform_make_fragment_name="$icu_cv_host_frag"
1179 platform_make_fragment='$(top_srcdir)/config/'"$platform_make_fragment_name"
1180 AC_SUBST(platform_make_fragment_name)
1181 AC_SUBST(platform_make_fragment)
1182
1183 if test "${FORCE_LIBS}" != ""; then
1184    echo " *** Overriding automatically chosen [LIBS=$LIBS], using instead [FORCE_LIBS=${FORCE_LIBS}]"  1>&6
1185    LIBS=${FORCE_LIBS}
1186 fi
1187
1188 # Now that we're done using CPPFLAGS etc. for tests, we can change it
1189 # for build.
1190
1191 CPPFLAGS="$CPPFLAGS \$(THREADSCPPFLAGS)"
1192 CFLAGS="$CFLAGS \$(THREADSCFLAGS)"
1193 CXXFLAGS="$CXXFLAGS \$(THREADSCXXFLAGS)"
1194
1195 AC_SUBST(LIBCFLAGS)
1196 AC_SUBST(LIBCXXFLAGS)
1197
1198 # append all config cppflags
1199 CPPFLAGS="$CPPFLAGS $CONFIG_CPPFLAGS $UCONFIG_CPPFLAGS"
1200
1201 echo "CPPFLAGS=$CPPFLAGS"
1202 echo "CFLAGS=$CFLAGS"
1203 echo "CXXFLAGS=$CXXFLAGS"
1204
1205
1206 # output the Makefiles
1207 AC_CONFIG_FILES([icudefs.mk \
1208                 Makefile \
1209                 data/pkgdataMakefile \
1210                 config/Makefile.inc \
1211                 config/icu.pc \
1212                 config/pkgdataMakefile \
1213                 data/Makefile \
1214                 stubdata/Makefile \
1215                 common/Makefile \
1216                 i18n/Makefile \
1217                 layout/Makefile \
1218                 layoutex/Makefile \
1219                 io/Makefile \
1220                 extra/Makefile \
1221                 extra/uconv/Makefile \
1222                 extra/uconv/pkgdataMakefile \
1223                 extra/scrptrun/Makefile \
1224                 tools/Makefile \
1225                 tools/ctestfw/Makefile \
1226                 tools/toolutil/Makefile \
1227                 tools/makeconv/Makefile \
1228                 tools/genrb/Makefile \
1229                 tools/genccode/Makefile \
1230                 tools/gencmn/Makefile \
1231                 tools/gencnval/Makefile \
1232                 tools/gendict/Makefile \
1233                 tools/gentest/Makefile \
1234                 tools/gennorm2/Makefile \
1235                 tools/genbrk/Makefile \
1236                 tools/gensprep/Makefile \
1237                 tools/icuinfo/Makefile \
1238                 tools/icupkg/Makefile \
1239                 tools/icuswap/Makefile \
1240                 tools/pkgdata/Makefile \
1241                 tools/tzcode/Makefile \
1242                 tools/gencfu/Makefile \
1243                 test/Makefile \
1244                 test/compat/Makefile \
1245                 test/testdata/Makefile \
1246                 test/testdata/pkgdataMakefile \
1247                 test/hdrtst/Makefile \
1248                 test/intltest/Makefile \
1249                 test/cintltst/Makefile \
1250                 test/iotest/Makefile \
1251                 test/letest/Makefile \
1252                 test/perf/Makefile \
1253                 test/perf/collationperf/Makefile \
1254                 test/perf/collperf/Makefile \
1255                 test/perf/dicttrieperf/Makefile \
1256                 test/perf/ubrkperf/Makefile \
1257                 test/perf/charperf/Makefile \
1258                 test/perf/convperf/Makefile \
1259                 test/perf/normperf/Makefile \
1260                 test/perf/DateFmtPerf/Makefile \
1261                 test/perf/howExpensiveIs/Makefile \
1262                 test/perf/strsrchperf/Makefile \
1263                 test/perf/unisetperf/Makefile \
1264                 test/perf/usetperf/Makefile \
1265                 test/perf/ustrperf/Makefile \
1266                 test/perf/utfperf/Makefile \
1267                 test/perf/utrie2perf/Makefile \
1268                 samples/Makefile samples/date/Makefile \
1269                 samples/cal/Makefile samples/layout/Makefile])
1270 AC_OUTPUT
1271
1272 echo
1273 echo "ICU for C/C++ $VERSION is ready to be built."
1274 echo "=== Important Notes: ==="
1275
1276 echo "Data Packaging: $datapackaging"
1277 echo " This means: $datapackaging_msg"
1278 echo " To locate data: $datapackaging_howfound"
1279
1280 if test -n "`$U_MAKE -v 2>&1 | grep '^GNU Make'`"; then
1281 echo "Building ICU: Use a GNU make such as $U_MAKE to build ICU."
1282 else
1283 echo "** WARNING: $U_MAKE may not be GNU make."
1284 echo "This may cause ICU to fail to build. Please make sure that GNU make"
1285 echo "is in your PATH so that the configure script can detect its location."
1286 fi
1287 if test "x$AR" = "xfalse"; then
1288   echo "*** WARNING: Archiver ar not found. Set AR= or fix PATH. Some builds (such as static) may fail."
1289 fi
1290
1291 AC_MSG_CHECKING([the version of "$U_MAKE"])
1292 if "$U_MAKE" -f "$srcdir/config/gmakever.mk" PLATFORM="$platform"; then
1293 AC_MSG_RESULT([ok])
1294 else
1295 AC_MSG_RESULT([too old or test failed - try upgrading GNU Make])
1296 fi
1297
1298 if test -n "$UCONFIG_CPPFLAGS"; then
1299    HDRFILE="uconfig.h.prepend"
1300    echo "*** WARNING: You must set the following flags before code compiled against this ICU will function properly:"
1301    echo
1302    echo "   ${UCONFIG_CPPFLAGS}"
1303    echo
1304    echo 'The recommended way to do this is to prepend the following lines to source/common/unicode/uconfig.h or #include them near the top of that file.'
1305    echo "Creating the file ${HDRFILE}"
1306    echo
1307    echo '---------------   ' "${HDRFILE}"
1308    echo > "${HDRFILE}"
1309    echo '/* ICU customizations: put these lines at the top of uconfig.h */' >> "${HDRFILE}"
1310    echo >> "${HDRFILE}"
1311    for flag in ${UCONFIG_CPPFLAGS};
1312    do
1313         echo " /* $flag */" >> "${HDRFILE}"
1314         case "${flag}" in
1315         -D*=*)
1316           [ \echo "${flag}" | sed -n 's%-D\([^=]*\)=%#define \1 %p' >> "${HDRFILE}" ]
1317           \echo >> "${HDRFILE}"
1318           ;;
1319         -D*)
1320           [ \echo "${flag}" | sed -n 's%-D\([^=]*\)%#define \1 %p' >> "${HDRFILE}" ]
1321           \echo >> "${HDRFILE}"
1322           ;;
1323         *)
1324           \echo "/*  Not sure how to handle this argument: ${flag} */" >> "${HDRFILE}"
1325           \echo >> "${HDRFILE}"
1326           ;;
1327         esac
1328    done
1329    cat "${HDRFILE}"
1330    \echo  "/* End of ${HDRFILE} ------------ */" >> "${HDRFILE}"
1331    echo >> "${HDRFILE}"
1332    echo '--------------- end ' "${HDRFILE}"
1333 fi
1334
1335 $as_unset _CXX_CXXSUFFIX