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      1 #!/bin/sh
      2 # install-reloc - install a program including a relocating wrapper
      3 # Copyright (C) 2003, 2005-2006 Free Software Foundation, Inc.
      4 # Written by Bruno Haible <bruno (at] clisp.org>, 2003.
      5 #
      6 # This program is free software; you can redistribute it and/or modify
      7 # it under the terms of the GNU General Public License as published by
      8 # the Free Software Foundation; either version 2, or (at your option)
      9 # any later version.
     10 #
     11 # This program is distributed in the hope that it will be useful,
     12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 # GNU General Public License for more details.
     15 #
     16 # You should have received a copy of the GNU General Public License
     17 # along with this program; if not, write to the Free Software Foundation,
     18 # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
     19 
     20 # Usage:
     21 #   install-reloc library_path_var library_path_value prefix compile_command srcdir config_h_dir exeext install_command... destprog
     22 # where
     23 #   - library_path_var is the platform dependent runtime library path variable
     24 #   - library_path_value is a colon separated list of directories that contain
     25 #     the libraries at installation time (use this instead of -rpath)
     26 #   - prefix is the base directory at installation time
     27 #   - compile_command is a C compiler compilation and linking command
     28 #   - srcdir is the directory where to find relocwrapper.c and its dependencies
     29 #   - builddir is the directory where to find built dependencies (namely,
     30 #     alloca.h and stdbool.h)
     31 #   - config_h_dir is the directory where to find config.h
     32 #   - exeext is platform dependent suffix of executables
     33 #   - install-command is the install command line, excluding the final destprog
     34 #   - destprog is the destination program name
     35 # install-reloc renames destprog to destprog.bin and installs a relocating
     36 # wrapper in the place of destprog.
     37 
     38 progname=$0
     39 
     40 if test $# -eq 2; then
     41   # Get arguments from environment variables.
     42   library_path_var=$RELOC_LIBRARY_PATH_VAR
     43   library_path_value=$RELOC_LIBRARY_PATH_VALUE
     44   prefix=$RELOC_PREFIX
     45   compile_command=$RELOC_COMPILE_COMMAND
     46   srcdir=$RELOC_SRCDIR
     47   builddir=$RELOC_BUILDDIR
     48   config_h_dir=$RELOC_CONFIG_H_DIR
     49   exeext=$RELOC_EXEEXT
     50   install_prog=$RELOC_INSTALL_PROG # including the "-c" option
     51 else
     52   if test $# -ge 9; then
     53     # Get fixed position arguments.
     54     library_path_var=$1
     55     library_path_value=$2
     56     prefix=$3
     57     compile_command=$4
     58     srcdir=$5
     59     builddir=$6
     60     config_h_dir=$7
     61     exeext=$8
     62     install_prog=$9 # maybe not including the "-c" option
     63     shift
     64     shift
     65     shift
     66     shift
     67     shift
     68     shift
     69     shift
     70     shift
     71     shift
     72   else
     73     echo "Usage: $0 library_path_var library_path_value prefix compile_command srcdir builddir config_h_dir exeext install_command... destprog" 1>&2
     74     exit 1
     75   fi
     76 fi
     77 
     78 # Get destprog, last argument.
     79 destprog=
     80 for arg
     81 do
     82   destprog=$arg
     83 done
     84 # Remove trailing $exeext, if present.
     85 if test -n "$exeext"; then
     86   sedexpr='s|'`echo "$exeext" | sed -e 's,\.,\\\.,g'`'$||'
     87   destprog=`echo "$destprog" | sed -e "$sedexpr"`
     88 fi
     89 
     90 # Outputs a command and runs it.
     91 func_verbose ()
     92 {
     93   echo "$@"
     94   "$@"
     95 }
     96 
     97 # Run install_command.
     98 func_verbose $install_prog "$@" || exit $?
     99 
    100 # If the platform doesn't support LD_LIBRARY_PATH or similar, we cannot build
    101 # a wrapper.
    102 test -n "$library_path_var" || exit 0
    103 
    104 libdirs=
    105 save_IFS="$IFS"; IFS=":"
    106 for dir in $library_path_value; do
    107   IFS="$save_IFS"
    108   if test -n "$dir"; then
    109     case "$libdirs" in
    110       *"\"$dir\""*) ;; # remove duplicate
    111       *) libdirs="$libdirs\"$dir\"," ;;
    112     esac
    113   fi
    114 done
    115 IFS="$save_IFS"
    116 # If there are no library directories to add at runtime, we don't need a
    117 # wrapper.
    118 test -n "$libdirs" || exit 0
    119 
    120 # Compile wrapper.
    121 installdir=`echo "$destprog" | sed -e 's,/[^/]*$,,'`
    122 func_verbose $compile_command -I"$builddir" -I"$srcdir" -I"$config_h_dir" -DHAVE_CONFIG_H -DIN_RELOCWRAPPER -DNO_XMALLOC -D"INSTALLPREFIX=\"$prefix\"" -D"INSTALLDIR=\"$installdir\"" -D"LIBPATHVAR=\"$library_path_var\"" -D"LIBDIRS=$libdirs" -D"EXEEXT=\"$exeext\"" "$srcdir"/relocwrapper.c "$srcdir"/progname.c "$srcdir"/progreloc.c "$srcdir"/xreadlink.c "$srcdir"/readlink.c "$srcdir"/canonicalize.c "$srcdir"/allocsa.c "$srcdir"/relocatable.c "$srcdir"/setenv.c "$srcdir"/strerror.c -o "$destprog.wrapper$exeext" || exit $?
    123 
    124 # Rename $destprog.wrapper -> $destprog -> $destprog.bin.
    125 ln -f "$destprog$exeext" "$destprog.bin$exeext" \
    126   || { rm -f "$destprog.bin$exeext" && cp -p "$destprog$exeext" "$destprog.bin$exeext"; } \
    127   || exit 1
    128 mv "$destprog.wrapper$exeext" "$destprog$exeext" || exit 1
    129 
    130 exit 0
    131