configure

   1 #!/bin/sh
   2 #
   3 # tcc configure script (c) 2003 Fabrice Bellard
   4
   5 # set temporary file name
   6 # if test ! -z "$TMPDIR" ; then
   7 #     TMPDIR1="${TMPDIR}"
   8 # elif test ! -z "$TEMPDIR" ; then
   9 #     TMPDIR1="${TEMPDIR}"
  10 # else
  11 #     TMPDIR1="/tmp"
  12 # fi
  13 #
  14 # bashism: TMPN="${TMPDIR1}/tcc-conf-${RANDOM}-$$-${RANDOM}.c"
  15
  16 TMPN="./conftest-$$"
  17 TMPH=$TMPN.h
  18
  19 # default parameters
  20 build_cross="no"
  21 use_libgcc="no"
  22 enable_assert="no"
  23 prefix=""
  24 execprefix=""
  25 bindir=""
  26 libdir=""
  27 tccdir=""
  28 includedir=""
  29 mandir=""
  30 infodir=""
  31 sysroot=""
  32 cross_prefix=""
  33 cc="gcc"
  34 host_cc="gcc"
  35 ar="ar"
  36 strip="strip"
  37 cygwin="no"
  38 gprof="no"
  39 bigendian="no"
  40 mingw32="no"
  41 LIBSUF=".a"
  42 EXESUF=""
  43 tcc_sysincludepaths=""
  44 tcc_libpaths=""
  45 tcc_crtprefix=""
  46 tcc_elfinterp=""
  47 tcc_lddir=
  48 confvars=
  49 cpu=
  50
  51 host_os=`uname`
  52 case $host_os in
  53   MINGW32*)  host_os=Windows; ;;
  54   *) ;;
  55 esac
  56
  57 # OS specific
  58 targetos=`uname`
  59 case $targetos in
  60   MINGW32*)  mingw32=yes; host_os=Windows; ;;
  61   DragonFly) noldl=yes;;
  62   OpenBSD)   noldl=yes;;
  63   FreeBSD)   noldl=yes;;
  64   NetBSD)    noldl=yes;;
  65   *) ;;
  66 esac
  67
  68 # find source path
  69 # XXX: we assume an absolute path is given when launching configure,
  70 # except in './configure' case.
  71 source_path=${0%configure}
  72 source_path=${source_path%/}
  73 source_path_used="yes"
  74 if test -z "$source_path" -o "$source_path" = "." ; then
  75     source_path=`pwd`
  76     source_path_used="no"
  77 fi
  78
  79 classify_cpu ()
  80 {
  81   cpu="$1"
  82
  83   case "$cpu" in
  84     x86|i386|i486|i586|i686|i86pc|BePC|i686-AT386)
  85       cpu="x86"
  86     ;;
  87     x86_64|amd64)
  88       cpu="x86-64"
  89     ;;
  90     arm*)
  91       case "$cpu" in
  92         arm|armv4l)
  93           cpuver=4
  94         ;;
  95         armv5tel|armv5tejl)
  96           cpuver=5
  97         ;;
  98         armv6j|armv6l)
  99           cpuver=6
 100         ;;
 101         armv7a|armv7l)
 102           cpuver=7
 103         ;;
 104       esac
 105       cpu="armv4l"
 106     ;;
 107     aarch64)
 108       cpu="aarch64"
 109     ;;
 110     alpha)
 111       cpu="alpha"
 112     ;;
 113     "Power Macintosh"|ppc|ppc64)
 114       cpu="powerpc"
 115     ;;
 116     mips)
 117       cpu="mips"
 118     ;;
 119     s390)
 120       cpu="s390"
 121     ;;
 122     *)
 123       echo "Unsupported CPU: $cpu"
 124       exit 1
 125     ;;
 126   esac
 127 }
 128
 129 for opt do
 130   eval opt=\"$opt\"
 131   case "$opt" in
 132   --prefix=*) prefix=`echo $opt | cut -d '=' -f 2`
 133   ;;
 134   --exec-prefix=*) execprefix=`echo $opt | cut -d '=' -f 2`
 135   ;;
 136   --tccdir=*) tccdir=`echo $opt | cut -d '=' -f 2`
 137   ;;
 138   --bindir=*) bindir=`echo $opt | cut -d '=' -f 2`
 139   ;;
 140   --libdir=*) libdir=`echo $opt | cut -d '=' -f 2`
 141   ;;
 142   --includedir=*) includedir=`echo $opt | cut -d '=' -f 2`
 143   ;;
 144   --sharedir=*) sharedir=`echo $opt | cut -d '=' -f 2`
 145   ;;
 146   --mandir=*) mandir=`echo $opt | cut -d '=' -f 2`
 147   ;;
 148   --infodir=*) infodir=`echo $opt | cut -d '=' -f 2`
 149   ;;
 150   --docdir=*) docdir=`echo $opt | cut -d '=' -f 2`
 151   ;;
 152   --sysroot=*) sysroot=`echo $opt | cut -d '=' -f 2`
 153   ;;
 154   --source-path=*) source_path=`echo $opt | cut -d '=' -f 2`
 155   ;;
 156   --cross-prefix=*) cross_prefix=`echo $opt | cut -d '=' -f 2`
 157   ;;
 158   --sysincludepaths=*) tcc_sysincludepaths=`echo $opt | cut -d '=' -f 2`
 159   ;;
 160   --libpaths=*) tcc_libpaths=`echo $opt | cut -d '=' -f 2`
 161   ;;
 162   --crtprefix=*) tcc_crtprefix=`echo $opt | cut -d '=' -f 2`
 163   ;;
 164   --elfinterp=*) tcc_elfinterp=`echo $opt | cut -d '=' -f 2`
 165   ;;
 166   --cc=*) cc=`echo $opt | cut -d '=' -f 2`
 167   ;;
 168   --extra-cflags=*) CFLAGS="${opt#--extra-cflags=}"
 169   ;;
 170   --extra-ldflags=*) LDFLAGS="${opt#--extra-ldflags=}"
 171   ;;
 172   --extra-libs=*) extralibs=${opt#--extra-libs=}
 173   ;;
 174   --cpu=*) cpu=`echo $opt | cut -d '=' -f 2`
 175   ;;
 176   --enable-gprof) gprof="yes"
 177   ;;
 178   --enable-mingw32) mingw32="yes" ; cross_prefix="i686-pc-mingw32-" ; cpu=x86; targetos=Windows;
 179   ;;
 180   --enable-cygwin) mingw32="yes" ; cygwin="yes" ; cross_prefix="mingw32-" ; cpu=x86; targetos=Windows;
 181   ;;
 182   --enable-tcc32-mingw) mingw32="yes" ; cross_prefix="i386-win-" ; cpu=x86; cc=tcc; targetos=Windows;
 183   ;;
 184   --enable-tcc64-mingw) mingw32="yes" ; cross_prefix="x86_64-win-" ; cpu=x86_64; cc=tcc; targetos=Windows;
 185   ;;
 186   --enable-cross) build_cross="yes"
 187   ;;
 188   --enable-assert) enable_assert="yes"
 189   ;;
 190   --disable-static) disable_static="yes"
 191   ;;
 192   --disable-rpath) disable_rpath="yes"
 193   ;;
 194   --strip-binaries) strip_binaries="yes"
 195   ;;
 196   --with-libgcc) use_libgcc="yes"
 197   ;;
 198   --with-selinux) have_selinux="yes"
 199   ;;
 200   --help|-h) show_help="yes"
 201   ;;
 202   *) echo "configure: WARNING: unrecognized option $opt"
 203   ;;
 204   esac
 205 done
 206
 207 if test -z "$cpu" ; then
 208     if test -n "$ARCH" ; then
 209         cpu="$ARCH"
 210     else
 211         cpu=`uname -m`
 212     fi
 213 fi
 214 classify_cpu "$cpu"
 215
 216 # Checking for CFLAGS
 217 if test -z "$CFLAGS"; then
 218     CFLAGS="-Wall -g -O0"
 219 fi
 220
 221 if test "$mingw32" = "yes" ; then
 222     if test x"$tccdir" = x""; then
 223     tccdir="tcc"
 224     fi
 225     if test -z "$prefix" ; then
 226     prefix="C:/Program Files/${tccdir}"
 227     fi
 228     if test -z "$sharedir" ; then
 229     sharedir="${prefix}"
 230     fi
 231     execprefix="$prefix"
 232     bindir="${prefix}"
 233     tccdir="${prefix}"
 234     libdir="${prefix}/lib"
 235     docdir="${sharedir}/doc"
 236     mandir="${sharedir}/man"
 237     infodir="${sharedir}/info"
 238     LIBSUF=".lib"
 239     EXESUF=".exe"
 240 else
 241     if test -z "$prefix" ; then
 242     prefix="/usr/local"
 243     fi
 244     if test -z "$sharedir" ; then
 245     sharedir="${prefix}/share"
 246     fi
 247     if test x"$execprefix" = x""; then
 248     execprefix="${prefix}"
 249     fi
 250     if test x"$tccdir" = x""; then
 251     tccdir="tcc"
 252     fi
 253     if test x"$libdir" = x""; then
 254         libdir="${execprefix}/lib"
 255         if test -n "${tccdir}"; then
 256             tccdir="${libdir}/${tccdir}"
 257         else
 258             tccdir="${libdir}"
 259         fi
 260         if test "$cpu" = "x86-64"; then
 261             libdir="${execprefix}/lib64"
 262         fi
 263     else
 264         tccdir="${libdir}/${tccdir}"
 265     fi
 266     if test x"$bindir" = x""; then
 267     bindir="${execprefix}/bin"
 268     fi
 269     if test x"$docdir" = x""; then
 270     docdir="${sharedir}/doc/${tccdir}"
 271     fi
 272     if test x"$mandir" = x""; then
 273     mandir="${sharedir}/man"
 274     fi
 275     if test x"$infodir" = x""; then
 276     infodir="${sharedir}/info"
 277     fi
 278 fi # mingw32
 279
 280 if test x"$includedir" = x""; then
 281 includedir="${prefix}/include"
 282 fi
 283
 284 if test x"$show_help" = "xyes" ; then
 285 cat << EOF
 286 Usage: configure [options]
 287 Options: [defaults in brackets after descriptions]
 288
 289 Standard options:
 290   --help                   print this message
 291   --prefix=PREFIX          install in PREFIX [$prefix]
 292   --exec-prefix=EPREFIX    install architecture-dependent files in EPREFIX
 293                            [same as prefix]
 294   --bindir=DIR             user executables in DIR [EPREFIX/bin]
 295   --libdir=DIR             object code libraries in DIR [EPREFIX/lib]
 296   --tccdir=DIR             installation directory [EPREFIX/lib/tcc]
 297   --includedir=DIR         C header files in DIR [PREFIX/include]
 298   --sharedir=DIR           documentation root DIR [PREFIX/share]
 299   --docdir=DIR             documentation in DIR [SHAREDIR/doc/tcc]
 300   --mandir=DIR             man documentation in DIR [SHAREDIR/man]
 301   --infodir=DIR            info documentation in DIR [SHAREDIR/info]
 302
 303 Advanced options (experts only):
 304   --source-path=PATH       path of source code [$source_path]
 305   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
 306   --sysroot=PREFIX         prepend PREFIX to library/include paths []
 307   --cc=CC                  use C compiler CC [$cc]
 308   --extra-cflags=          specify compiler flags [$CFLAGS]
 309   --extra-ldflags=         specify linker options []
 310   --cpu=CPU                CPU [$cpu]
 311   --strip-binaries         strip symbol tables from resulting binaries
 312   --disable-static         make libtcc.so instead of libtcc.a
 313   --disable-rpath          disable use of -rpath with the above
 314   --with-libgcc            use libgcc_s.so.1 instead of libtcc1.a in dynamic link
 315   --enable-tcc64-mingw     build windows version on linux with x86_64-win-tcc
 316   --enable-tcc32-mingw     build windows version on linux with i386-win-tcc
 317   --enable-mingw32         build windows version on linux with mingw32
 318   --enable-cygwin          build windows version on windows with cygwin
 319   --enable-cross           build cross compilers
 320   --enable-assert          enable debug assertions
 321   --with-selinux           use mmap for exec mem [needs writable /tmp]
 322   --sysincludepaths=...    specify system include paths, colon separated
 323   --libpaths=...           specify system library paths, colon separated
 324   --crtprefix=...          specify locations of crt?.o, colon separated
 325   --elfinterp=...          specify elf interpreter
 326 EOF
 327 #echo "NOTE: The object files are build at the place where configure is launched"
 328 exit 1
 329 fi
 330
 331 if test "$cc" != "tcc"; then
 332  ar="${cross_prefix}${ar}"
 333 fi
 334 cc="${cross_prefix}${cc}"
 335 strip="${cross_prefix}${strip}"
 336
 337 CONFTEST=./conftest$EXESUF
 338
 339 if test -z "$cross_prefix" ; then
 340   if ! $cc -o $CONFTEST $source_path/conftest.c 2>/dev/null ; then
 341     echo "configure: error: '$cc' failed to compile conftest.c."
 342   else
 343     bigendian="$($CONFTEST bigendian)"
 344     gcc_major="$($CONFTEST version)"
 345     gcc_minor="$($CONFTEST minor)"
 346     if test "$mingw32" = "no" ; then
 347       triplet="$($CONFTEST triplet)"
 348       if test -f "/usr/lib/$triplet/crti.o" ; then
 349         tcc_lddir="lib"
 350         multiarch_triplet="$triplet"
 351       elif test "$cpu" != "x86" -a -f "/usr/lib64/crti.o" ; then
 352         tcc_lddir="lib64"
 353       fi
 354
 355       if test "$cpu" = "armv4l" ; then
 356         if test "${triplet%eabihf}" != "$triplet" ; then
 357            confvars="$confvars arm_eabihf"
 358         elif test "${triplet%eabi}" != "$triplet" ; then
 359            confvars="$confvars arm_eabi"
 360         fi
 361         if grep -s -q "^Features.* \(vfp\|iwmmxt\) " /proc/cpuinfo ; then
 362            confvars="$confvars arm_vfp"
 363         fi
 364       fi
 365
 366 #      multiarch_triplet=${libc_dir#*/}
 367 #      multiarch_triplet=${multiarch_triplet%/}
 368 #      tcc_lddir="${libc_dir%%/*}"
 369 #      if test -n "$multiarch_triplet" ; then
 370 #        tcc_lddir="$tcc_lddir/$multiarch_triplet"
 371 #      fi
 372
 373       if test -f "/lib/ld-uClibc.so.0" ; then
 374         confvars="$confvars uClibc"
 375       fi
 376 # gr: maybe for after the release:
 377 #       tcc_elfinterp="$(ldd $CONFTEST | grep 'ld.*.so' | sed 's,\s*\(\S\+\).*,\1,')"
 378        # echo "elfinterp           $tcc_elfinterp"
 379
 380     fi
 381   fi
 382 else
 383   # if cross compiling, cannot launch a program, so make a static guess
 384   case $cpu in
 385     powerpc|mips|s390)  bigendian=yes;;
 386   esac
 387 fi
 388
 389 # a final configuration tuning
 390 W_OPTIONS="declaration-after-statement"
 391 for i in $W_OPTIONS; do
 392     O_PRESENT="$($cc -v --help 2>&1 | grep -- -W$i)"
 393     if test -n "$O_PRESENT"; then  CFLAGS="$CFLAGS -W$i"; fi
 394 done
 395 W_OPTIONS="deprecated-declarations strict-aliasing pointer-sign sign-compare unused-result uninitialized"
 396 for i in $W_OPTIONS; do
 397     O_PRESENT="$($cc -v --help 2>&1 | grep -- -W$i)"
 398     if test -n "$O_PRESENT"; then  CFLAGS="$CFLAGS -Wno-$i"; fi
 399 done
 400 F_OPTIONS="strict-aliasing"
 401 for i in $F_OPTIONS; do
 402     O_PRESENT="$($cc -v --help 2>&1 | grep -- -f$i)"
 403     if test -n "$O_PRESENT"; then  CFLAGS="$CFLAGS -fno-$i"; fi
 404 done
 405 if test -z "$tcc_lddir" -a "$cpu" = "x86-64"; then tcc_lddir="lib64"; fi
 406
 407 echo "Binary  directory   $bindir"
 408 echo "TinyCC directory    $tccdir"
 409 echo "Library directory   $libdir"
 410 echo "Include directory   $includedir"
 411 echo "Manual directory    $mandir"
 412 echo "Info directory      $infodir"
 413 echo "Doc directory       $docdir"
 414 echo "Target root prefix  $sysroot"
 415 echo "Source path      $source_path"
 416 echo "C compiler       $cc"
 417 echo "cross compilers  $build_cross"
 418 if test "$build_cross" = "no"; then
 419 echo "Target CPU       $cpu"
 420 fi
 421 echo "Host OS          $host_os"
 422 echo "Target OS        $targetos"
 423 echo "Big Endian       $bigendian"
 424 echo "gprof enabled    $gprof"
 425 echo "use libgcc       $use_libgcc"
 426
 427 echo "Creating config.mak and config.h"
 428
 429 cat >config.mak <<EOF
 430 # Automatically generated by configure - do not modify
 431 prefix=$prefix
 432 bindir=\$(DESTDIR)$bindir
 433 tccdir=\$(DESTDIR)$tccdir
 434 libdir=\$(DESTDIR)$libdir
 435 ln_libdir=$libdir
 436 includedir=\$(DESTDIR)$includedir
 437 mandir=\$(DESTDIR)$mandir
 438 infodir=\$(DESTDIR)$infodir
 439 docdir=\$(DESTDIR)$docdir
 440 CC=$cc
 441 GCC_MAJOR=$gcc_major
 442 GCC_MINOR=$gcc_minor
 443 HOST_CC=$host_cc
 444 AR=$ar
 445 STRIP=$strip -s -R .comment -R .note
 446 CFLAGS=$CFLAGS
 447 LDFLAGS=$LDFLAGS
 448 LIBSUF=$LIBSUF
 449 EXESUF=$EXESUF
 450 HOST_OS=$host_os
 451 EOF
 452 if test "$mingw32" = "yes" -a "$host_os" != "Windows" ; then
 453 cat >>config.mak <<EOF
 454 XCC=$cc
 455 XAR=$ar
 456 EOF
 457 fi
 458
 459 print_inc() {
 460   if test -n "$2"; then
 461     echo "#ifndef $1" >> $TMPH
 462     echo "# define $1 \"$2\"" >> $TMPH
 463     echo "#endif" >> $TMPH
 464   fi
 465 }
 466 print_mak() {
 467   if test -n "$2"; then
 468     echo "NATIVE_DEFINES+=-D$1=\"\\\"$2\\\"\"" >> config.mak
 469   fi
 470 }
 471
 472 echo "/* Automatically generated by configure - do not modify */" > $TMPH
 473
 474 print_inc CONFIG_SYSROOT "$sysroot"
 475 print_inc CONFIG_TCCDIR "$tccdir"
 476 if test "$build_cross" = "no"; then
 477 print_inc CONFIG_LDDIR "$tcc_lddir"
 478 fi
 479 print_mak CONFIG_TCC_SYSINCLUDEPATHS "$tcc_sysincludepaths"
 480 print_mak CONFIG_TCC_LIBPATHS "$tcc_libpaths"
 481 print_mak CONFIG_TCC_CRTPREFIX "$tcc_crtprefix"
 482 print_mak CONFIG_TCC_ELFINTERP "$tcc_elfinterp"
 483 print_mak CONFIG_MULTIARCHDIR "$multiarch_triplet"
 484
 485 echo "#define GCC_MAJOR $gcc_major" >> $TMPH
 486 echo "#define GCC_MINOR $gcc_minor" >> $TMPH
 487
 488 if test "$cpu" = "x86" ; then
 489   echo "ARCH=i386" >> config.mak
 490 elif test "$cpu" = "x86-64" ; then
 491   echo "ARCH=x86-64" >> config.mak
 492 elif test "$cpu" = "armv4l" ; then
 493   echo "ARCH=arm" >> config.mak
 494   echo "#define TCC_ARM_VERSION $cpuver" >> $TMPH
 495 elif test "$cpu" = "aarch64" ; then
 496   echo "ARCH=arm64" >> config.mak
 497 elif test "$cpu" = "powerpc" ; then
 498   echo "ARCH=ppc" >> config.mak
 499 elif test "$cpu" = "mips" ; then
 500   echo "ARCH=mips" >> config.mak
 501 elif test "$cpu" = "s390" ; then
 502   echo "ARCH=s390" >> config.mak
 503 elif test "$cpu" = "alpha" ; then
 504   echo "ARCH=alpha" >> config.mak
 505 else
 506   echo "Unsupported CPU"
 507   exit 1
 508 fi
 509
 510 echo "TARGETOS=$targetos" >> config.mak
 511
 512 for v in $confvars ; do
 513   echo "CONFIG_$v=yes" >> config.mak
 514 done
 515 if test "$noldl" = "yes" ; then
 516   echo "CONFIG_NOLDL=yes" >> config.mak
 517 fi
 518 if test "$mingw32" = "yes" ; then
 519   echo "CONFIG_WIN32=yes" >> config.mak
 520   echo "#define CONFIG_WIN32 1" >> $TMPH
 521 fi
 522 if test "$cygwin" = "yes" ; then
 523   echo "#ifndef _WIN32" >> $TMPH
 524   echo "# define _WIN32" >> $TMPH
 525   echo "#endif" >> $TMPH
 526   echo "AR=ar" >> config.mak
 527 fi
 528 if test "$bigendian" = "yes" ; then
 529   echo "WORDS_BIGENDIAN=yes" >> config.mak
 530   echo "#define WORDS_BIGENDIAN 1" >> $TMPH
 531 fi
 532 if test "$gprof" = "yes" ; then
 533   echo "TARGET_GPROF=yes" >> config.mak
 534   echo "#define HAVE_GPROF 1" >> $TMPH
 535 fi
 536 if test "$build_cross" = "yes" ; then
 537   echo "CONFIG_CROSS=yes" >> config.mak
 538 fi
 539 if test "$disable_static" = "yes" ; then
 540   echo "DISABLE_STATIC=yes" >> config.mak
 541 fi
 542 if test "$disable_rpath" = "yes" ; then
 543   echo "DISABLE_RPATH=yes" >> config.mak
 544 fi
 545 if test "$strip_binaries" = "yes" ; then
 546   echo "STRIP_BINARIES=yes" >> config.mak
 547 fi
 548 if test "$use_libgcc" = "yes" ; then
 549   echo "#define CONFIG_USE_LIBGCC" >> $TMPH
 550   echo "CONFIG_USE_LIBGCC=yes" >> config.mak
 551 fi
 552 if test "$have_selinux" = "yes" ; then
 553   echo "#define HAVE_SELINUX" >> $TMPH
 554   echo "HAVE_SELINUX=yes" >> config.mak
 555 fi
 556 if test "$enable_assert" = "yes" ; then
 557   echo "#define CONFIG_TCC_ASSERT" >> $TMPH
 558 fi
 559
 560 version=`head $source_path/VERSION`
 561 echo "VERSION=$version" >>config.mak
 562 echo "#define TCC_VERSION \"$version\"" >> $TMPH
 563 echo "@set VERSION $version" > config.texi
 564 echo "SRC_PATH=$source_path" >>config.mak
 565
 566 if test "$source_path_used" = "yes" ; then
 567     case $source_path in
 568        /*) echo "top_srcdir=$source_path";;
 569         *) echo "top_srcdir=\$(TOP)/$source_path";;
 570      esac >>config.mak
 571 else
 572      echo 'top_srcdir=$(TOP)' >>config.mak
 573 fi
 574 echo 'top_builddir=$(TOP)' >>config.mak
 575
 576 diff $TMPH config.h >/dev/null 2>&1
 577 if test $? -ne 0 ; then
 578     mv -f $TMPH config.h
 579 else
 580     echo "config.h is unchanged"
 581 fi
 582
 583 rm -f $TMPN* $CONFTEST
 584
 585 # ---------------------------------------------------------------------------
 586 # build tree in object directory if source path is different from current one
 587
 588 fn_makelink()
 589 {
 590     tgt=$1/$2
 591     case $2 in
 592     */*) dn=${2%/*}
 593          test -d $dn || mkdir -p $dn
 594          case $1 in
 595          /*) ;;
 596           *) while test $dn ; do
 597                 tgt=../$tgt; dn=${dn#${dn%%/*}}; dn=${dn#/}
 598              done
 599              ;;
 600          esac
 601          ;;
 602     esac
 603     ln -sfn $tgt $2
 604 }
 605
 606 if test "$source_path_used" = "yes" ; then
 607   FILES="Makefile lib/Makefile tests/Makefile tests/tests2/Makefile"
 608   for f in $FILES ; do
 609     fn_makelink $source_path $f
 610   done
 611 fi
 612
 613 # ---------------------------------------------------------------------------