Edit
thodg/libiconv/m4/relocatable.m4
Bruno Haible
- m4/relocatable.m4
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# relocatable.m4 serial 1 (gettext-0.12) dnl Copyright (C) 2003 Free Software Foundation, Inc. dnl This file is free software, distributed under the terms of the GNU dnl General Public License. As a special exception to the GNU General dnl Public License, this file may be distributed as part of a program dnl that contains a configuration script generated by Autoconf, under dnl the same distribution terms as the rest of that program. 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]) use_elf_origin_trick=no if test $RELOCATABLE = yes; then # --enable-relocatable implies --disable-rpath enable_rpath=no AC_LIBOBJ([relocatable]) AC_DEFINE([ENABLE_RELOCATABLE], 1, [Define to 1 if the package shall run at any location in the filesystem.]) case "$host_os" in linux*) use_elf_origin_trick=yes ;; esac 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_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 else SET_RELOCATABLE= fi AC_SUBST([SET_RELOCATABLE]) AM_CONDITIONAL([RELOCATABLE_VIA_LD], [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" ])