misc/shlib

   1 #!/bin/sh
   2 ##############################################################################
   3 # Copyright (c) 1998-2003,2005 Free Software Foundation, Inc.                #
   4 #                                                                            #
   5 # Permission is hereby granted, free of charge, to any person obtaining a    #
   6 # copy of this software and associated documentation files (the "Software"), #
   7 # to deal in the Software without restriction, including without limitation  #
   8 # the rights to use, copy, modify, merge, publish, distribute, distribute    #
   9 # with modifications, sublicense, and/or sell copies of the Software, and to #
  10 # permit persons to whom the Software is furnished to do so, subject to the  #
  11 # following conditions:                                                      #
  12 #                                                                            #
  13 # The above copyright notice and this permission notice shall be included in #
  14 # all copies or substantial portions of the Software.                        #
  15 #                                                                            #
  16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR #
  17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,   #
  18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL    #
  19 # THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      #
  20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING    #
  21 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER        #
  22 # DEALINGS IN THE SOFTWARE.                                                  #
  23 #                                                                            #
  24 # Except as contained in this notice, the name(s) of the above copyright     #
  25 # holders shall not be used in advertising or otherwise to promote the sale, #
  26 # use or other dealings in this Software without prior written               #
  27 # authorization.                                                             #
  28 ##############################################################################
  29 #
  30 # Author: Thomas E. Dickey <dickey@clark.net> 1996
  31 #
  32 # $Id: shlib,v 1.11 2007/01/13 17:09:52 tom Exp $
  33 # Use this script as a wrapper when running executables linked to shared
  34 # libraries on systems that use the $LD_LIBRARY_PATH variable and don't embed
  35 # the soname's path within the linked executable (such as IRIX), e.g,
  36 #
  37 #       shlib knight
  38 #
  39 # Setting LD_LIBRARY_PATH, overrides/supplements the loader's normal search
  40 # path, and works on most systems.  The drawback is that then the environment
  41 # variable has to be set to run the programs within this directory tree.
  42 #
  43 # For Linux (and other systems using the GNU loader), we can use the rpath
  44 # directive, which embeds the pathname of the library within the executable.
  45 # Using the Linux loader's rpath directive introduces a constraint, since
  46 # it's embedded into the binary, and means that the binary cannot be moved
  47 # around (though it'll work if the $exec_prefix convention that puts the bin
  48 # and lib directories under the same parent is followed).
  49 #
  50 # Using the actual soname (e.g., ../lib/libncurses.so) alone, is a more
  51 # flexible solution; you can link without having to set the environment
  52 # variable, and on some systems (IRIX) you can even run the resulting binaries
  53 # without setting LD_LIBRARY_PATH.
  54 #
  55 # Using a conventional link, with -L and -l options on Linux results in a
  56 # statically linked executable, which we don't want at all.
  57 #
  58 # Special cases:
  59 #
  60 #       BeOS R4.5 uses $LIBRARY_PATH rather than $LD_LIBRARY_PATH.
  61 #       Cygwin uses $PATH
  62 #       Mac OS X uses $DYLD_LIBRARY_PATH
  63 #
  64 # Other cases not handled by this script:
  65 #
  66 #       AIX uses $LIBPATH
  67 #       IRIX64 may use $LD_LIBRARY64_PATH or $LD_LIBRARYN32_PATH
  68 #       Solaris may use $LD_LIBRARY_PATH_64
  69 #
  70 CDPATH=
  71 #
  72 # Make sure that we use the PATH that was set in run_tic.sh
  73 if test -n "$SHLIB_PATH" ; then
  74         PATH=$SHLIB_PATH
  75         export PATH
  76 fi
  77
  78 # Find the lib-directory for this build tree
  79 q=""
  80 for p in lib ../lib ../../lib ../../../lib
  81 do
  82         if test -d $p; then
  83                 q=`cd $p; pwd`
  84                 break
  85         elif test -f configure && test ! -d ../$p ; then
  86                 break
  87         fi
  88 done
  89
  90 # Set the environment variable.
  91 if test -n "$q" ; then
  92         system=
  93         if test -n "$SHLIB_HOST" ; then
  94                 system="$SHLIB_HOST"
  95         elif test -n "$PATHEXT" ; then
  96                 system=cygwin
  97         elif test -n "$LIBRARY_PATH" ; then
  98                 system=beos
  99         elif test -n "$DYLD_LIBRARY_PATH" ; then
 100                 system=darwin
 101         elif test -n "$LD_LIBRARY_PATH"; then
 102                 system=unix
 103         else
 104                 for r in $q/*.*
 105                 do
 106                         if test -f "$r"
 107                         then
 108                                 case $r in
 109                                 *.dll)
 110                                         system=cygwin
 111                                         ;;
 112                                 *.dylib)
 113                                         system=darwin
 114                                         ;;
 115                                 esac
 116                         fi
 117                         test -n "$system" && break
 118                 done
 119         fi
 120
 121         case .$system in
 122         .cygwin*)
 123                 variable=PATH
 124                 ;;
 125         .beos*)
 126                 variable=LIBRARY_PATH
 127                 ;;
 128         .darwin*)
 129                 variable=DYLD_LIBRARY_PATH
 130                 ;;
 131         *)
 132                 variable=LD_LIBRARY_PATH
 133                 ;;
 134         esac
 135
 136         eval 'test -z "$'$variable'" && '$variable'=":"'
 137         eval $variable'="$q:$'$variable'"'
 138         eval 'export '$variable
 139 fi
 140
 141 eval "$*"