98 lines
3.7 KiB
Plaintext
98 lines
3.7 KiB
Plaintext
# relocatable.m4 serial 2 (gettext-0.13)
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dnl Copyright (C) 2003 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl From Bruno Haible.
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dnl Support for relocateble programs.
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AC_DEFUN([AC_RELOCATABLE],
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[
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AC_REQUIRE([AC_PROG_INSTALL])
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AC_BEFORE([AC_PROG_INSTALL],[AC_RELOCATABLE])
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AC_REQUIRE([AC_LIB_LIBPATH])
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AC_REQUIRE([AC_RELOCATABLE_LIBRARY])
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use_elf_origin_trick=no
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if test $RELOCATABLE = yes; then
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# --enable-relocatable implies --disable-rpath
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enable_rpath=no
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AC_LIBOBJ([relocatable])
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AC_DEFINE([ENABLE_RELOCATABLE], 1,
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[Define to 1 if the package shall run at any location in the filesystem.])
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case "$host_os" in
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linux*) use_elf_origin_trick=yes ;;
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esac
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if test $use_elf_origin_trick = yes; then
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dnl Use the dynamic linker's support for relocatable programs.
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case "$ac_aux_dir" in
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/*) reloc_ldflags="$ac_aux_dir/reloc-ldflags" ;;
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*) reloc_ldflags="\$(top_builddir)/$ac_aux_dir/reloc-ldflags" ;;
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esac
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SET_RELOCATABLE="RELOCATABLE_LDFLAGS = \"$reloc_ldflags\" \"\$(host)\" \"\$(RELOCATABLE_LIBRARY_PATH)\""
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else
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dnl Unfortunately we cannot define INSTALL_PROGRAM to a command
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dnl consisting of more than one word - libtool doesn't support this.
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dnl So we abuse the INSTALL_PROGRAM_ENV hook, originally meant for the
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dnl 'install-strip' target.
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SET_RELOCATABLE="INSTALL_PROGRAM_ENV = RELOC_LIBRARY_PATH_VAR=\"$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=\"$INSTALL_PROGRAM\""
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case "$ac_aux_dir" in
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/*) INSTALL_PROGRAM="$ac_aux_dir/install-reloc" ;;
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*) INSTALL_PROGRAM="\$(top_builddir)/$ac_aux_dir/install-reloc" ;;
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esac
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fi
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else
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SET_RELOCATABLE=
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fi
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AC_SUBST([SET_RELOCATABLE])
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AM_CONDITIONAL([RELOCATABLE_VIA_LD],
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[test $use_elf_origin_trick = yes])
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])
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dnl Support for relocatable libraries.
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AC_DEFUN([AC_RELOCATABLE_LIBRARY],
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[
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AC_REQUIRE([AC_RELOCATABLE_NOP])
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dnl Easier to put this here once, instead of into the DEFS of each Makefile.
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if test "X$prefix" = "XNONE"; then
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reloc_final_prefix="$ac_default_prefix"
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else
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reloc_final_prefix="$prefix"
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fi
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AC_DEFINE_UNQUOTED([INSTALLPREFIX], ["${reloc_final_prefix}"],
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[Define to the value of ${prefix}, as a string.])
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])
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dnl Support for relocatable packages for which it is a nop.
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AC_DEFUN([AC_RELOCATABLE_NOP],
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[
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AC_MSG_CHECKING([whether to activate relocatable installation])
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AC_ARG_ENABLE(relocatable,
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[ --enable-relocatable install a package that can be moved in the filesystem],
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[if test "$enableval" != no; then
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RELOCATABLE=yes
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else
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RELOCATABLE=no
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fi
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], RELOCATABLE=no)
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AC_SUBST(RELOCATABLE)
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AC_MSG_RESULT([$RELOCATABLE])
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])
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dnl Determine the platform dependent parameters needed to use relocatability:
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dnl shlibpath_var.
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AC_DEFUN([AC_LIB_LIBPATH],
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[
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AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD
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AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host
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AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir
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AC_CACHE_CHECK([for shared library path variable], acl_cv_libpath, [
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LD="$LD" \
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${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.libpath" "$host" > conftest.sh
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. ./conftest.sh
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rm -f ./conftest.sh
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acl_cv_libpath=${acl_cv_shlibpath_var:-none}
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])
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shlibpath_var="$acl_cv_shlibpath_var"
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])
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