# relocatable.m4 serial 5 (gettext-0.15)dnl Copyright (C) 2003, 2005-2006 Free Software Foundation, Inc.dnl This file is free software; the Free Software Foundationdnl gives unlimited permission to copy and/or distribute it,dnl with or without modifications, as long as this notice is preserved.dnl From Bruno Haible.dnl Support for relocateble programs.AC_DEFUN([AC_RELOCATABLE],[  AC_REQUIRE([AC_PROG_INSTALL])  AC_BEFORE([AC_PROG_INSTALL],[AC_RELOCATABLE])  AC_REQUIRE([AC_LIB_LIBPATH])  AC_REQUIRE([AC_RELOCATABLE_LIBRARY])  AC_REQUIRE([AC_EXEEXT])  is_noop=no  use_elf_origin_trick=no  if test $RELOCATABLE = yes; then    # --enable-relocatable implies --disable-rpath    enable_rpath=no    AC_LIBOBJ([relocatable])    AC_DEFINE([ENABLE_RELOCATABLE], 1,      [Define to 1 if the package shall run at any location in the filesystem.])    AC_CHECK_HEADERS([unistd.h mach-o/dyld.h])    AC_CHECK_FUNCS([_NSGetExecutablePath])    case "$host_os" in      mingw*) is_noop=yes ;;      linux*) use_elf_origin_trick=yes ;;    esac    if test $is_noop = yes; then      SET_RELOCATABLE="RELOCATABLE_LDFLAGS = :"    else      if test $use_elf_origin_trick = yes; then        dnl Use the dynamic linker's support for relocatable programs.        case "$ac_aux_dir" in          /*) reloc_ldflags="$ac_aux_dir/reloc-ldflags" ;;          *) reloc_ldflags="\$(top_builddir)/$ac_aux_dir/reloc-ldflags" ;;        esac        SET_RELOCATABLE="RELOCATABLE_LDFLAGS = \"$reloc_ldflags\" \"\$(host)\" \"\$(RELOCATABLE_LIBRARY_PATH)\""      else        dnl Unfortunately we cannot define INSTALL_PROGRAM to a command        dnl consisting of more than one word - libtool doesn't support this.        dnl So we abuse the INSTALL_PROGRAM_ENV hook, originally meant for the        dnl 'install-strip' target.        SET_RELOCATABLE="INSTALL_PROGRAM_ENV = RELOC_LIBRARY_PATH_VAR=\"$shlibpath_var\" RELOC_LIBRARY_PATH_VALUE=\"\$(RELOCATABLE_LIBRARY_PATH)\" RELOC_PREFIX=\"\$(prefix)\" RELOC_COMPILE_COMMAND=\"\$(CC) \$(CPPFLAGS) \$(CFLAGS) \$(LDFLAGS)\" RELOC_SRCDIR=\"\$(RELOCATABLE_SRC_DIR)\" RELOC_BUILDDIR=\"\$(RELOCATABLE_BUILD_DIR)\" RELOC_CONFIG_H_DIR=\"\$(RELOCATABLE_CONFIG_H_DIR)\" RELOC_EXEEXT=\"\$(EXEEXT)\" RELOC_INSTALL_PROG=\"$INSTALL_PROGRAM\""        case "$ac_aux_dir" in          /*) INSTALL_PROGRAM="$ac_aux_dir/install-reloc" ;;          *) INSTALL_PROGRAM="\$(top_builddir)/$ac_aux_dir/install-reloc" ;;        esac      fi    fi  else    SET_RELOCATABLE=  fi  AC_SUBST([SET_RELOCATABLE])  AM_CONDITIONAL([RELOCATABLE_VIA_LD],    [test $is_noop = yes || test $use_elf_origin_trick = yes])])dnl Support for relocatable libraries.AC_DEFUN([AC_RELOCATABLE_LIBRARY],[  AC_REQUIRE([AC_RELOCATABLE_NOP])  dnl Easier to put this here once, instead of into the DEFS of each Makefile.  if test "X$prefix" = "XNONE"; then    reloc_final_prefix="$ac_default_prefix"  else    reloc_final_prefix="$prefix"  fi  AC_DEFINE_UNQUOTED([INSTALLPREFIX], ["${reloc_final_prefix}"],    [Define to the value of ${prefix}, as a string.])])dnl Support for relocatable packages for which it is a nop.AC_DEFUN([AC_RELOCATABLE_NOP],[  AC_MSG_CHECKING([whether to activate relocatable installation])  AC_ARG_ENABLE(relocatable,    [  --enable-relocatable    install a package that can be moved in the filesystem],    [if test "$enableval" != no; then       RELOCATABLE=yes     else       RELOCATABLE=no     fi    ], RELOCATABLE=no)  AC_SUBST(RELOCATABLE)  AC_MSG_RESULT([$RELOCATABLE])])dnl Determine the platform dependent parameters needed to use relocatability:dnl shlibpath_var.AC_DEFUN([AC_LIB_LIBPATH],[  AC_REQUIRE([AC_LIB_PROG_LD])            dnl we use $LD  AC_REQUIRE([AC_CANONICAL_HOST])         dnl we use $host  AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir  AC_CACHE_CHECK([for shared library path variable], acl_cv_libpath, [    LD="$LD" \    ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.libpath" "$host" > conftest.sh    . ./conftest.sh    rm -f ./conftest.sh    acl_cv_libpath=${acl_cv_shlibpath_var:-none}  ])  shlibpath_var="$acl_cv_shlibpath_var"])