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annotate build-aux/libtool-reloc @ 40246:c34f677e6117 default tip master

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_Noreturn: GCC 4.7 does not support [[noreturn]] in C++11 mode * lib/_Noreturn.h, m4/gnulib-common.m4: Don't use [[noreturn]] before GCC 4.8.
author Akim Demaille <akim.demaille@gmail.com>
date Sun, 17 Mar 2019 19:27:20 +0100
parents 770a5696761e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
40206
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1 #!/bin/sh
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2 # libtool-reloc - libtool wrapper with support for relocatable programs
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3 # Copyright (C) 2019 Free Software Foundation, Inc.
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4 # Written by Bruno Haible <bruno@clisp.org>, 2019.
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5 #
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6 # This program is free software: you can redistribute it and/or modify
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7 # it under the terms of the GNU General Public License as published by
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8 # the Free Software Foundation; either version 3 of the License, or
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9 # (at your option) any later version.
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10 #
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU General Public License for more details.
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15 #
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16 # You should have received a copy of the GNU General Public License
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17 # along with this program. If not, see <https://www.gnu.org/licenses/>.
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18
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19 # Usage: libtool-reloc libtool LIBTOOL_ARGUMENTS
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20
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21 # Outputs a command and runs it.
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22 func_verbose ()
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23 {
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24 # Make it easy to copy&paste the printed command into a shell in most cases,
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25 # by escaping '\\', '"', and '$'. This is not perfect, just good enough.
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26 echo "$@" | sed -e 's/\([\\"$]\)/\\\1/g'
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27 "$@"
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28 }
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29
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30 # Determine the mode from the arguments.
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31 mode=
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32 for arg
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33 do
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34 case "$arg" in
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35 --mode=link) mode=link ;;
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36 esac
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37 done
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38
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39 if test "$mode" = link; then
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40 # Determine the target from the arguments.
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41 target=
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42 next_is_target=false
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43 for arg
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44 do
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45 if $next_is_target; then
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46 target="$arg"
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47 next_is_target=false
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48 else
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49 case "$arg" in
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50 -o) next_is_target=true ;;
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51 *) next_is_target=false ;;
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52 esac
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53 fi
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54 done
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55 case "$target" in
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56 *.la)
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57 # When creating a library:
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58 # 1. Add a '-Wl,-rpath,@loader_path' option.
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59 # (A '-R @loader_path' option does not work: libtool produces
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60 # an error "error: only absolute run-paths are allowed".)
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61 # (Also note that 'install_name_tool -add_rpath @loader_path ...'
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62 # does not work on Mac OS X 10.5.)
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63 # This is done through the RELOCATABLE_LDFLAGS macro.
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64 # 2. After creating the library, run
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65 # install_name_tool -id @rpath/$dlname $target_dir/.libs/$dlname
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66 # (This is easier than to modify the libtool script to emit a different
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67 # install_name. Also, an option '-Wl,-install_name,@rpath/$dlname' does
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68 # not work since libtool emits another option '-Wl,-install_name,...'
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69 # after it.
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70 "$@" && {
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71 dlname_assignment=`grep '^dlname=' "$target"`
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72 dlname=
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73 eval "$dlname_assignment"
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74 # Nothing to do when --disable-shared was specified.
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75 if test -n "$dlname"; then
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76 target_dir=`dirname "$target"`
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77 if test -f "$target_dir/.libs/$dlname"; then
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78 func_verbose install_name_tool -id "@rpath/$dlname" "$target_dir/.libs/$dlname"
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79 fi
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80 fi
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81 }
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82 ;;
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83 *)
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84 "$@"
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85 ;;
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86 esac
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87 else
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88 "$@"
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89 fi