Skip to content
Snippets Groups Projects
ltmain.sh 46.2 KiB
Newer Older
Jason Merrill's avatar
Jason Merrill committed
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000
# ltmain.sh - Provide generalized library-building support services.
# Generated automatically from ltmain.sh.in by configure.
# Copyright (C) 1996, 1997 Free Software Foundation, Inc.
# Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.

# The name of this program.
progname=`echo "$0" | sed 's%^.*/%%'`

# Constants.
PROGRAM=ltmain.sh
PACKAGE=libtool
VERSION=1.0

default_mode=
help="Try \`$progname --help' for more information."
magic="%%%MAGIC variable%%%"
mkdir="mkdir"
mv="mv -f"
objdir=.libs
rm="rm -f"

if test "$LTCONFIG_VERSION" != "$VERSION"; then
  echo "$progname: ltconfig version \`$LTCONFIG_VERSION' does not match $PROGRAM version \`$VERSION'" 1>&2
  echo "Fatal configuration error.  See the $PACKAGE docs for more information." 1>&2
  exit 1
fi

#
if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
  echo "$progname: not configured to build any kind of library" 1>&2
  echo "Fatal configuration error.  See the $PACKAGE docs for more information." 1>&2
  exit 1
fi

# Global variables.
mode=$default_mode
nonopt=
prev=
prevopt=
run=
show=echo
show_help=

# Parse our command line options once, thoroughly.
while test $# -gt 0
do
  arg="$1"
  shift

  case "$arg" in
  -*=*) optarg=`echo "$arg" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
  *) optarg= ;;
  esac

  # If the previous option needs an argument, assign it.
  if test -n "$prev"; then
    eval "$prev=\$arg"
    prev=
    prevopt=
    continue
  fi

  # Have we seen a non-optional argument yet?
  case "$arg" in
  --help)
    show_help=yes
    ;;

  --version)
    echo "$PROGRAM (GNU $PACKAGE) $VERSION"
    exit 0
    ;;

  --dry-run | -n)
    run=:
    ;;

  --features)
    echo "host: $host"
    if test "$build_libtool_libs" = yes; then
      echo "enable shared libraries"
    else
      echo "disable shared libraries"
    fi
    if test "$build_old_libs" = yes; then
      echo "enable static libraries"
    else
      echo "disable static libraries"
    fi
    exit 0
    ;;

  --finish) mode="finish" ;;

  --mode) prevopt="--mode" prev=mode ;;
  --mode=*) mode="$optarg" ;;

  -*)
    echo "$progname: unrecognized option \`$arg'" 1>&2
    echo "$help" 1>&2
    exit 1
    ;;

  *)
    nonopt="$arg"
    break
    ;;
  esac
done


if test -n "$prevopt"; then
  echo "$progname: option \`$prevopt' requires an argument" 1>&2
  echo "$help" 1>&2
  exit 1
fi


if test -z "$show_help"; then

  # Infer the operation mode.
  if test -z "$mode"; then
    case "$nonopt" in
    *cc)
      mode=link
      for arg
      do
        case "$arg" in
        -c)
           mode=compile
           break
           ;;
        esac
      done
      ;;
    *install*|cp)
      mode=install
      ;;
    *rm)
      mode=uninstall
      ;;
    *.la)
      mode=dlname
      ;;
    *)
      # Just use the default operation mode.
      if test -z "$mode"; then
	if test -n "$nonopt"; then
	  echo "$progname: warning: cannot infer operation mode from \`$nonopt'" 1>&2
	else
	  echo "$progname: warning: cannot infer operation mode without MODE-ARGS" 1>&2
	fi
      fi
      ;;
    esac
  fi

  # Change the help message to a mode-specific one.
  generic_help="$help"
  help="Try \`$progname --help --mode=$mode' for more information."

  # These modes are in order of execution frequency so that they run quickly.
  case "$mode" in
  # libtool compile mode
  compile)
    progname="$progname: compile"
    # Get the compilation command and the source file.
    base_compile="$nonopt"
    lastarg=
    srcfile=

    for arg
    do
      # Quote any args containing shell metacharacters.
      case "$arg" in
      *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*|*\"*)
	 quote_arg="'$arg'" ;;
      *) quote_arg="$arg" ;;
      esac

      base_compile="$base_compile$lastarg"
      srcfile="$quote_arg"
      lastarg=" $srcfile"
    done

    # Get the name of the library object.
    libobj=`echo "$srcfile" | sed -e 's%^.*/%%'`

    # Recognize several different file suffixes.
    xform='[cCFSf]'
    case "$libobj" in
    *.c++) xform='c++' ;;
    *.cc) xform=cc ;;
    *.cpp) xform=cpp ;;
    *.cxx) xform=cxx ;;
    *.f90) xform=f90 ;;
    *.for) xform='for' ;;
    esac

    libobj=`echo "$libobj" | sed -e "s/\.$xform$/.lo/"`

    case "$libobj" in
    *.lo) obj=`echo "$libobj" | sed -e 's/\.lo$/.o/'` ;;
    *)
      echo "$progname: cannot determine name of library object from \`$srcfile'" 1>&2
      exit 1
      ;;
    esac

    if test -z "$base_compile"; then
      echo "$progname: you must specify a compilation command" 1>&2
      echo "$help" 1>&2
      exit 1
    fi

    # Delete any leftover library objects.
    if test "$build_old_libs" = yes; then
      $run $rm $obj $libobj
      trap "$run $rm $obj $libobj; exit 1" 1 2 15
    else
      $run $rm $libobj
      trap "$run $rm $libobj; exit 1" 1 2 15
    fi

    # Only build a PIC object if we are building libtool libraries.
    if test "$build_libtool_libs" = yes; then
      # All platforms use -DPIC, to notify preprocessed assembler code.
      $show "$base_compile$pic_flag -DPIC $srcfile"
      if $run eval "$base_compile$pic_flag -DPIC $srcfile"; then :
      else
	test -n "$obj" && $run $rm $obj
	exit 1
      fi

      # If we have no pic_flag, then copy the object into place and finish.
      if test -z "$pic_flag"; then
	$show "$LN_S $obj $libobj"
	$run $LN_S $obj $libobj
	exit $?
      fi

      # Just move the object, then go on to compile the next one
      $show "$mv $obj $libobj"
      $run $mv $obj $libobj || exit 1
    fi

    # Only build a position-dependent object if we build old libraries.
    if test "$build_old_libs" = yes; then
      $show "$base_compile $srcfile"
      if $run eval "$base_compile $srcfile"; then :
      else
        $run $rm $obj $libobj
        exit 1
      fi
    fi

    # Create an invalid libtool object if no PIC, so that we don't accidentally
    # link it into a program.
    if test "$build_libtool_libs" != yes; then
      $show "echo timestamp > $libobj"
      $run eval "echo timestamp > $libobj" || exit $?
    fi

    exit 0
    ;;

  # libtool link mode
  link)
    progname="$progname: link"
    # Go through the arguments, transforming them on the way.
    cc="$nonopt"
    args="$cc"
    allow_undefined=no
    compile_command="$cc"
    finalize_command="$cc"
    compile_shlibpath=
    finalize_shlibpath=
    deplibs=
    export_dynamic=no
    hardcode_libdirs=
    install_libdir=
    libobjs=
    link_against_libtool_libs=
    link_static=
    ltlibs=
    objs=
    prev=
    prevarg=
    perm_rpath=
    temp_rpath=
    vinfo=

    # We need to know -static, to get the right output filenames.
    for arg
    do
      case "$arg" in
      -static)
        build_libtool_libs=no
        build_old_libs=yes
        break
        ;;
      esac
    done

    for arg
    do
      # If the previous option needs an argument, assign it.
      if test -n "$prev"; then
	case "$prev" in
	output)
	  compile_command="$compile_command @OUTPUT@"
	  finalize_command="$finalize_command @OUTPUT@"
	  args="$args $arg"
	  ;;
	esac

	eval "$prev=\$arg"
	prev=

	continue
      fi

      args="$args $arg"
      prevarg="$arg"

      case "$arg" in
      -allow-undefined) allow_undefined=yes ;;

      -export-dynamic)
	export_dynamic=yes
	compile_command="$compile_command $export_dynamic_flag"
	finalize_command="$finalize_command $export_dynamic_flag"
	continue
	;;

      -L*)
	dir=`echo "$arg" | sed 's%^-L\(.*\)$%\1%'`
	case "$dir" in
	/*)
	  ;;
	*)
	  echo "$progname: \`-L$dir' cannot specify a relative directory" 1>&2
	  exit 1
	  ;;
	esac
	deplibs="$deplibs $arg"
	;;

      -l*) deplibs="$deplibs $arg" ;;

      -o) prev=output ;;

      -rpath)
	prev=install_libdir
	continue
	;;

      -static)
	link_static="`eval echo \"$link_static_flag\"`"
	compile_command="$compile_command $link_static"
	continue
	;;

      -version-file)
	echo "$progname: \`-version-file' has been replaced by \`-version-info'" 1>&2
	echo "$help" 1>&2
	exit 1
	;;

      -version-info)
	prev=vinfo
	continue
	;;

      -*) cc="$cc $arg" ;; # Some other compiler flag.

      *.o)
	# A standard object.
	objs="$objs $arg"
	;;

      *.a)
	# Find the relevant object directory and library name.
	file=`echo "$arg" | sed 's%^.*/%%'`
	dir=`echo "$arg" | sed 's%/[^/]*$%/%'`
	test "$dir" = "$arg" && dir=

	# Standard archive.
	objs="$objs $arg"
	;;

      *.lo)
	# A library object.
	libobjs="$libobjs $arg"
	;;

      *.la)
	# A libtool-controlled library.

	libdir=
	library_names=
	old_library=

	# Check to see that this really is a libtool archive.
	if egrep "^# Generated by $PROGRAM" $arg >/dev/null 2>&1; then :
	else
	  echo "$progname: \`$arg' is not a valid libtool archive" 1>&2
	  exit 1
	fi

	# If there is no directory component, then add one.
	case "$arg" in
	*/*) . $arg ;;
	*) . ./$arg ;;
	esac

	if test -z "$libdir"; then
	  echo "$progname: \`$arg' contains no -rpath information" 1>&2
	  exit 1
	fi

	# Get the name of the library we link against.
	linklib=
	for l in $old_library $library_names; do
	  linklib="$l"
	done

	if test -z "$linklib"; then
	  echo "$progname: cannot find name of link library for \`$arg'" 1>&2
	  exit 1
	fi

	# Find the relevant object directory and library name.
	name=`echo "$arg" | sed 's%^.*/%%; s/\.la$//; s/^lib//'`
	dir=`echo "$arg" | sed 's%/[^/]*$%%'`
	if test "$dir" = "$arg"; then
	  dir="$objdir"
	else
	  dir="$dir/$objdir"
	fi

	if test "$build_libtool_libs" = yes && test -n "$library_names"; then
	  link_against_libtool_libs="$link_against_libtool_libs $arg"
	  if test -n "$shlibpath_var"; then
	    # Make sure the rpath contains only unique directories.
	    case "$temp_rpath " in
	    "* $dir *") ;;
	    *) temp_rpath="$temp_rpath $dir" ;;
	    esac
	  fi

	  if test -n "$hardcode_libdir_flag_spec"; then
	    if test -n "$hardcode_libdir_separator"; then
	      if test -z "$hardcode_libdirs"; then
		# Put the magic libdir with the hardcode flag.
		hardcode_libdirs="$libdir"
		libdir="@HARDCODE_LIBDIRS@"
	      else
		# Just accumulate the libdirs.
		hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
		libdir=
	      fi
	    fi

	    if test -n "$libdir"; then
	      hardcode_libdir_flag=`eval echo \"$hardcode_libdir_flag_spec\"`
	      compile_command="$compile_command $hardcode_libdir_flag"
	      finalize_command="$finalize_command $hardcode_libdir_flag"
	    fi
	  elif test "$hardcode_runpath_var" = yes; then
	    # Do the same for the permanent run path.
	    case "$perm_rpath " in
	    "* $libdir *") ;;
	    *) perm_rpath="$perm_rpath $libdir" ;;
	    esac
	  fi


	  case "$hardcode_action" in
	  immediate)
	    if test "$hardcode_direct" = no; then
	      compile_command="$compile_command $dir/$linklib"
	    elif test "$hardcode_minus_L" = no; then
	      compile_command="$compile_command -L$dir -l$name"
	    elif test "$hardcode_shlibpath_var" = no; then
	      compile_shlibpath="$compile_shlibpath$dir:"
	      compile_command="$compile_command -l$name"
	    fi
	    ;;

	  relink)
	    # We need an absolute path.
	    case "$dir" in
	    /*) ;;
	    *)
	      absdir=`cd "$dir" && pwd`
	      if test -z "$absdir"; then
		echo "$progname: cannot determine absolute directory name of \`$dir'" 1>&2
		exit 1
	      fi
	      dir="$absdir"
	      ;;
	    esac

	    if test "$hardcode_direct" = yes; then
	      compile_command="$compile_command $dir/$linklib"
	    elif test "$hardcode_minus_L" = yes; then
	      compile_command="$compile_command -L$dir -l$name"
	    elif test "$hardcode_shlibpath_var" = yes; then
	      compile_shlibpath="$compile_shlibpath$dir:"
	      compile_command="$compile_command -l$name"
	    fi
	    ;;

	  *)
	    echo "$progname: \`$hardcode_action' is an unknown hardcode action" 1>&2
	    exit 1
	    ;;
	  esac

	  # Finalize command for both is simple: just hardcode it.
	  if test "$hardcode_direct" = yes; then
	    finalize_command="$finalize_command $libdir/$linklib"
	  elif test "$hardcode_minus_L" = yes; then
	    finalize_command="$finalize_command -L$libdir -l$name"
	  elif test "$hardcode_shlibpath_var" = yes; then
	    finalize_shlibpath="$finalize_shlibpath$libdir:"
	    finalize_command="$finalize_command -l$name"
          else
            # We can't seem to hardcode it, guess we'll fake it.
	    finalize_command="$finalize_command -L$libdir -l$name"
	  fi
        else
          # Transform directly to old archives if we don't build new libraries.
          if test -n "$pic_flag" && test -z "$old_library"; then
            echo "$progname: cannot find static library for \`$arg'" 1>&2
	    exit 1
	  fi
	  test -n "$old_library" && linklib="$old_library"
          compile_command="$compile_command $dir/$linklib"
	  finalize_command="$finalize_command $dir/$linklib"
        fi
	continue
	;;

      *)
        echo "$progname: unknown file suffix for \`$arg'" 1>&2
	echo "$help" 1>&2
	exit 1
	;;
      esac

      compile_command="$compile_command $arg"
      finalize_command="$finalize_command $arg"
    done

    if test -n "$prev"; then
      echo "$progname: the \`$prevarg' option requires an argument" 1>&2
      echo "$help" 1>&2
      exit 1
    fi

    # Substitute the hardcoded libdirs into the compile commands.
    if test "$hardcode_libdir_colon_separated" = yes; then
      compile_command=`echo "$compile_command" | sed "s%@HARDCODE_LIBDIRS@%$hardcode_libdirs%g"`
      finalize_command=`echo "$finalize_command" | sed "s%@HARDCODE_LIBDIRS@%$hardcode_libdirs%g"`
    fi

    oldlib=
    oldobjs=
    case "$output" in
    "")
      echo "$progname: you must specify an output file" 1>&2
      echo "$help" 1>&2
      exit 1
      ;;

    */*)
      echo "$progname: output file \`$output' must have no directory components" 1>&2
      exit 1
      ;;

    *.la)
      libname=`echo "$output" | sed 's/\.la$//'`

      # All the library-specific variables (install_libdir is set above).
      library_names=
      old_library=
      dlname=
      current=0
      revision=0
      age=0

      if test -n "$objs"; then
	echo "$progname: cannot build libtool library \`$output' from non-libtool objects:$objs" 2>&1
	exit 1
      fi

      # How the heck are we supposed to write a wrapper for a shared library?
      if test -n "$link_against_libtool_libs"; then
        echo "$progname: libtool library \`$output' may not depend on uninstalled libraries:$link_against_libtool_libs" 1>&2
	exit 1
      fi

      if test -z "$install_libdir"; then
	echo "$progname: you must specify an installation directory with \`-rpath'" 1>&2
	exit 1
      fi

      # Parse the version information argument.
      IFS="${IFS= 	}"; save_ifs="$IFS"; IFS=':'
      set dummy $vinfo
      IFS="$save_ifs"

      if test -n "$5"; then
        echo "$progname: too many parameters to \`-version-info'" 1>&2
	echo "$help" 1>&2
	exit 1
      fi

      test -n "$2" && current="$2"
      test -n "$3" && revision="$3"
      test -n "$4" && age="$4"

      # Check that each of the things are valid numbers.
      case "$current" in
      0 | [1-9] | [1-9][0-9]*) ;;
      *)
	echo "$progname: CURRENT \`$current' is not a nonnegative integer" 1>&2
        echo "$progname: \`$vinfo' is not valid version information" 1>&2
        exit 1
	;;
      esac

      case "$revision" in
      0 | [1-9] | [1-9][0-9]*) ;;
      *)
	echo "$progname: REVISION \`$revision' is not a nonnegative integer" 1>&2
        echo "$progname: \`$vinfo' is not valid version information" 1>&2
        exit 1
	;;
      esac

      case "$age" in
      0 | [1-9] | [1-9][0-9]*) ;;
      *)
	echo "$progname: AGE \`$age' is not a nonnegative integer" 1>&2
        echo "$progname: \`$vinfo' is not valid version information" 1>&2
        exit 1
	;;
      esac

      if test $age -gt $current; then
        echo "$progname: AGE \`$age' is greater than the current interface number \`$current'" 1>&2
        echo "$progname: \`$vinfo' is not valid version information" 1>&2
        exit 1
      fi

      # Calculate the version variables.
      version_vars="version_type current age revision"
      case "$version_type" in
      none) ;;

      linux)
	version_vars="$version_vars major versuffix"
	major=`expr $current - $age`
	versuffix="$major.$age.$revision"
	;;

      osf)
	version_vars="$version_vars versuffix verstring"
	major=`expr $current - $age`
	versuffix="$current.$age.$revision"
	verstring="$versuffix"

	# Add in all the interfaces that we are compatible with.
	loop=$age
	while test $loop != 0; do
	  iface=`expr $current - $loop`
	  loop=`expr $loop - 1`
	  verstring="$verstring:${iface}.0"
	done

	# Make executables depend on our current version.
	verstring="$verstring:${current}.0"
	;;

      sunos)
	version_vars="$version_vars major versuffix"
	major="$current"
	versuffix="$current.$revision"
	;;

      *)
	echo "$progname: unknown library version type \`$version_type'" 1>&2
	echo "Fatal configuration error.  See the $PACKAGE docs for more information." 1>&2
	exit 1
	;;
      esac

      # Create the output directory, or remove our outputs if we need to.
      if test -d $objdir; then
        $show "$rm $objdir/$libname.*"
        $run $rm $objdir/$libname.*
      else
        $show "$mkdir $objdir"
	$run $mkdir $objdir || exit $?
      fi

      # Check to see if the archive will have undefined symbols.
      if test "$allow_undefined" = yes; then
	if test "$allow_undefined_flag" = unsupported; then
	  echo "$progname: warning: undefined symbols not allowed in $host shared libraries" 1>&2
	  build_libtool_libs=no
	fi
      else
	# Clear the flag.
	allow_undefined_flag=
      fi

      if test "$build_libtool_libs" = yes; then
	# Get the real and link names of the library.
	library_names=`eval echo \"$library_names_spec\"`
	set dummy $library_names
	realname="$2"
	shift; shift

	if test -n "$soname_spec"; then
	  soname=`eval echo \"$soname_spec\"`
	else
	  soname="$realname"
	fi

	lib="$objdir/$realname"
	linknames=
	for link
	do
	  linknames="$linknames $link"
	done

	# Use standard objects if they are PIC.
	test -z "$pic_flag" && libobjs=`echo "$libobjs " | sed 's/\.lo /.o /g; s/ $//g'`

	# Do each of the archive commands.
	cmds=`eval echo \"$archive_cmds\"`
	IFS="${IFS= 	}"; save_ifs="$IFS"; IFS=';'
	for cmd in $cmds; do
	  IFS="$save_ifs"
	  $show "$cmd"
	  $run eval "$cmd" || exit $?
	done
	IFS="$save_ifs"

	# Create links to the real library.
	for link in $linknames; do
	  $show "(cd $objdir && $LN_S $realname $link)"
	  $run eval "(cd $objdir && $LN_S $realname $link)" || exit $?
	done

	# If -export-dynamic was specified, set the dlname.
	if test "$export_dynamic" = yes; then
	  # On all known operating systems, these are identical.
	  dlname="$soname"
	fi
      fi
      ;;

    *.lo | *.o)
      if test -n "$link_against_libtool_libs"; then
	echo "$progname: error: cannot link libtool libraries into reloadable objects" 1>&2
	exit 1
      fi

      if test -n "$deplibs"; then
	echo "$progname: warning: \`-l' and \`-L' are ignored while creating objects" 1>&2
      fi

      if test -n "$install_libdir"; then
        echo "$progname: warning: \`-rpath' is ignored while creating objects" 1>&2
      fi

      if test -n "$vinfo"; then
	echo "$progname: warning: \`-version-info' is ignored while creating objects" 1>&2
      fi

      case "$output" in
      *.lo)
	if test -n "$objs"; then
	  echo "$progname: cannot build library object \`$output' from non-libtool objects" 1>&2
	  exit 1
	fi
	libobj="$output"
	obj=`echo "$output" | sed 's/\.lo$/.o/'`
	;;
      *)
        libobj=
	obj="$output"
	;;
      esac

      # Delete the old objects.
      $run $rm $obj $libobj

      # Create the old-style object.
      reload_objs="$objs"`echo "$libobjs " | sed 's/[^ 	]*\.a //g; s/\.lo /.o /g; s/ $//g'`

      output="$obj"
      cmds=`eval echo \"$reload_cmds\"`
      IFS="${IFS= 	}"; save_ifs="$IFS"; IFS=';'
      for cmd in $cmds; do
        IFS="$save_ifs"
        $show "$cmd"
	$run eval "$cmd" || exit $?
      done
      IFS="$save_ifs"

      # Exit if we aren't doing a library object file.
      test -z "$libobj" && exit 0

      if test "$build_libtool_libs" != yes; then
        # Create an invalid libtool object if no PIC, so that we don't
        # accidentally link it into a program.
	$show "echo timestamp > $libobj"
	$run eval "echo timestamp > $libobj" || exit $?
	exit 0
      fi

      if test -n "$pic_flag"; then
	# Only do commands if we really have different PIC objects.
	reload_objs="$libobjs"
	output="$libobj"
        cmds=`eval echo \"$reload_cmds\"`
        IFS="${IFS= 	}"; save_ifs="$IFS"; IFS=';'
        for cmd in $cmds; do
          IFS="$save_ifs"
          $show "$cmd"
          $run eval "$cmd" || exit $?
        done
        IFS="$save_ifs"
      else
        # Just create a symlink.
        $show "$LN_S $obj $libobj"
        $run $LN_S $obj $libobj || exit 1
      fi

      exit 0
      ;;

    *)
      if test -n "$install_libdir"; then
        echo "$progname: warning: \`-rpath' is ignored while linking programs" 1>&2
      fi

      if test -n "$vinfo"; then
	echo "$progname: warning: \`-version-info' is ignored while linking programs" 1>&2
      fi

      if test -n "$libobjs"; then
	# Transform all the library objects into standard objects.
	compile_command=`echo "$compile_command " | sed 's/\.lo /.o /g; s/ $//'`
	finalize_command=`echo "$finalize_command " | sed 's/\.lo /.o /g; s/ $//'`
      fi

      if test -z "$link_against_libtool_libs" || test "$build_libtool_libs" != yes; then
	# Replace the output file specification.
	compile_command=`echo "$compile_command" | sed 's%@OUTPUT@%'"$output"'%g'`
	finalize_command=`echo "$finalize_command" | sed 's%@OUTPUT@%'"$output"'%g'`

	# We have no uninstalled library dependencies, so finalize right now.
	$show "$compile_command"
	$run $compile_command
	status=$?

	# If we failed to link statically, then try again.
	if test $status -ne 0 && test -n "$link_static"; then
	  echo "$progname: cannot link \`$output' statically; retrying semi-dynamically" 1>&2
	  compile_command=`echo "$compile_command " | sed "s% $link_static % %;s/ $//"`
	  $show "$finalize_command"
	  $run $finalize_command
	  status=$?
	fi
	exit $status
      fi

      # Replace the output file specification.
      compile_command=`echo "$compile_command" | sed 's%@OUTPUT@%'"$objdir/$output"'%g'`
      finalize_command=`echo "$finalize_command" | sed 's%@OUTPUT@%'"$objdir/$output"'T%g'`

      # Create the binary in the object directory, then wrap it.
      if test -d $objdir; then :
      else
        $show "$mkdir $objdir"
        $run $mkdir $objdir || exit $?
      fi

      if test -n "$shlibpath_var"; then
        # We should set the shlibpath_var
	rpath=
	for dir in $temp_rpath; do
	  case "$dir" in
	  /*)
	    # Absolute path.
	    rpath="$rpath$dir:"
	    ;;
	  *)
	    # Relative path: add a thisdir entry.
	    rpath="$rpath\$thisdir/$dir:"
	    ;;
	  esac
	done
	temp_rpath="$rpath"
      fi

      # Delete the old output file.
      $run $rm $output

      if test -n "$compile_shlibpath"; then
	compile_command="$shlibpath_var=\"$compile_shlibpath\$$shlibpath_var\" $compile_command"
      fi
      if test -n "$finalize_shlibpath"; then
	finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
      fi

      if test -n "$perm_rpath"; then
	# We should set the runpath_var.
	rpath=
	for dir in $perm_rpath; do
	  rpath="$rpath$dir:"
	done
	compile_command="$runpath_var=\"$rpath\$$runpath_var\" $compile_command"
	finalize_command="$runpath_var=\"$rpath\$$runpath_var\" $finalize_command"
      fi

      case "$hardcode_action" in
      relink)
	# AGH! Flame the AIX and HP-UX people for me, will ya?
	echo "$progname: warning: using a buggy system linker" 1>&2
	echo "$progname: relinking will be required before \`$output' can be installed" 1>&2
	;;
      esac

      $show "$compile_command"
      $run eval "$compile_command" || exit $?

      # Now create the wrapper script.
      echo "creating $output"

      # Only actually do things if our run command is non-null.
      if test -z "$run"; then
	$rm $output
	trap "$rm $output; exit 1" 1 2 15

	cat > $output <<EOF
#! /bin/sh

# $output - temporary wrapper script for $objdir/$output
# Generated by $PROGRAM - GNU $PACKAGE $VERSION
#
# The $output program cannot be directly executed until all the libtool
# libraries that it depends on are installed.
#
# This wrapper script should never be moved out of \``pwd`'.
# If it is, it will not operate correctly.

# This environment variable determines our operation mode.
if test "\$libtool_install_magic" = "$magic"; then
  # install mode needs the following variables:
  link_against_libtool_libs='$link_against_libtool_libs'
  finalize_command='$finalize_command'
else
  # Find the directory that this script lives in.
  thisdir=\`echo \$0 | sed 's%/[^/]*$%%'\`
  test "x\$thisdir" = "x\$0" && thisdir=.

  # Try to get the absolute directory name.
  absdir=\`cd "\$thisdir" && pwd\`
  test -n "\$absdir" && thisdir="\$absdir"

  progdir="\$thisdir/$objdir"
  program="$output"