kc3-lang/gnulib/build-aux/libtool-reloc

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• Hash : b204bbfc
  Author :
  Date : 2019-03-04T17:25:09
  

  relocatable-prog: Use wrapper-free installation on Mac OS X, take 2.
  
  This approach supports relocatable installation of shared libraries
  which depend on other shared libraries from the same package.
  
  * m4/relocatable.m4 (gl_RELOCATABLE_BODY): Determine use_macos_tools.
  If use_macos_tools is true, use reloc-ldflags and set LIBTOOL to be a
  wrapper around the original LIBTOOL.
  * build-aux/reloc-ldflags: Add support for Mac OS X, which uses the
  token '@loader_path' instead of '$ORIGIN'.
  * build-aux/libtool-reloc: New file.
  * modules/relocatable-prog (Files): Add it.
  * doc/relocatable-maint.texi (Supporting Relocation): Update to match
  the recent changes. Document the need to set the *_LDFLAGS of libraries.
  RELOCATABLE_LIBRARY_PATH and RELOCATABLE_CONFIG_H_DIR should be set in
  Makefile.am, not in configure.ac.
  

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• build-aux/libtool-reloc

• #!/bin/sh
  # libtool-reloc - libtool wrapper with support for relocatable programs
  # Copyright (C) 2019 Free Software Foundation, Inc.
  # Written by Bruno Haible <bruno@clisp.org>, 2019.
  #
  # 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 3 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, see <https://www.gnu.org/licenses/>.
  
  # Usage: libtool-reloc libtool LIBTOOL_ARGUMENTS
  
  # Outputs a command and runs it.
  func_verbose ()
  {
    # Make it easy to copy&paste the printed command into a shell in most cases,
    # by escaping '\\', '"', and '$'. This is not perfect, just good enough.
    echo "$@" | sed -e 's/\([\\"$]\)/\\\1/g'
    "$@"
  }
  
  # Determine the mode from the arguments.
  mode=
  for arg
  do
    case "$arg" in
      --mode=link) mode=link ;;
    esac
  done
  
  if test "$mode" = link; then
    # Determine the target from the arguments.
    target=
    next_is_target=false
    for arg
    do
      if $next_is_target; then
        target="$arg"
        next_is_target=false
      else
        case "$arg" in
          -o) next_is_target=true ;;
          *) next_is_target=false ;;
        esac
      fi
    done
    case "$target" in
      *.la)
        # When creating a library:
        # 1. Add a '-Wl,-rpath,@loader_path' option.
        #    (A '-R @loader_path' option does not work: libtool produces
        #    an error "error: only absolute run-paths are allowed".)
        #    (Also note that 'install_name_tool -add_rpath @loader_path ...'
        #    does not work on Mac OS X 10.5.)
        #    This is done through the RELOCATABLE_LDFLAGS macro.
        # 2. After creating the library, run
        #    install_name_tool -id @rpath/$dlname $target_dir/.libs/$dlname
        #    (This is easier than to modify the libtool script to emit a different
        #    install_name. Also, an option '-Wl,-install_name,@rpath/$dlname' does
        #    not work since libtool emits another option '-Wl,-install_name,...'
        #    after it.
        "$@" && {
          dlname_assignment=`grep '^dlname=' "$target"`
          dlname=
          eval "$dlname_assignment"
          # Nothing to do when --disable-shared was specified.
          if test -n "$dlname"; then
            target_dir=`dirname "$target"`
            if test -f "$target_dir/.libs/$dlname"; then
              func_verbose install_name_tool -id "@rpath/$dlname" "$target_dir/.libs/$dlname"
            fi
          fi
        }
        ;;
      *)
        "$@"
        ;;
    esac
  else
    "$@"
  fi
  

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