Return to relocatable.m4 CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / libiconv / srcm4

Annotation of embedaddon/libiconv/srcm4/relocatable.m4, revision 1.1

1.1     ! misho       1: # relocatable.m4 serial 14
        !             2: dnl Copyright (C) 2003, 2005-2007, 2009 Free Software Foundation, Inc.
        !             3: dnl This file is free software; the Free Software Foundation
        !             4: dnl gives unlimited permission to copy and/or distribute it,
        !             5: dnl with or without modifications, as long as this notice is preserved.
        !             6: 
        !             7: dnl From Bruno Haible.
        !             8: 
        !             9: dnl gl_RELOCATABLE([RELOCWRAPPER-DIR])
        !            10: dnl ----------------------------------------------------------
        !            11: dnl Support for relocatable programs.
        !            12: dnl Supply RELOCWRAPPER-DIR as the directory where relocwrapper.c may be found.
        !            13: AC_DEFUN([gl_RELOCATABLE],
        !            14: [
        !            15:   AC_REQUIRE([gl_RELOCATABLE_BODY])
        !            16:   gl_RELOCATABLE_LIBRARY
        !            17:   if test $RELOCATABLE = yes; then
        !            18:     AC_LIBOBJ([progreloc])
        !            19:   fi
        !            20:   : ${RELOCATABLE_CONFIG_H_DIR='$(top_builddir)'}
        !            21:   RELOCATABLE_SRC_DIR="\$(top_srcdir)/$gl_source_base"
        !            22:   RELOCATABLE_BUILD_DIR="\$(top_builddir)/$gl_source_base"
        !            23: ])
        !            24: dnl The guts of gl_RELOCATABLE. Needs to be expanded only once.
        !            25: AC_DEFUN([gl_RELOCATABLE_BODY],
        !            26: [
        !            27:   AC_REQUIRE([AC_PROG_INSTALL])
        !            28:   dnl This AC_BEFORE invocation leads to unjustified autoconf warnings
        !            29:   dnl when gl_RELOCATABLE_BODY is invoked more than once.
        !            30:   dnl We need this AC_BEFORE because AC_PROG_INSTALL is documented to
        !            31:   dnl overwrite earlier settings of INSTALL and INSTALL_PROGRAM (even
        !            32:   dnl though in autoconf-2.52..2.60 it doesn't do so), but we want this
        !            33:   dnl macro's setting of INSTALL_PROGRAM to persist.
        !            34:   AC_BEFORE([AC_PROG_INSTALL],[gl_RELOCATABLE_BODY])
        !            35:   AC_REQUIRE([AC_LIB_LIBPATH])
        !            36:   AC_REQUIRE([gl_RELOCATABLE_LIBRARY_BODY])
        !            37:   is_noop=no
        !            38:   use_elf_origin_trick=no
        !            39:   if test $RELOCATABLE = yes; then
        !            40:     # --enable-relocatable implies --disable-rpath
        !            41:     enable_rpath=no
        !            42:     AC_CHECK_HEADERS([mach-o/dyld.h])
        !            43:     AC_CHECK_FUNCS([_NSGetExecutablePath])
        !            44:     case "$host_os" in
        !            45:       mingw*) is_noop=yes ;;
        !            46:       linux*) use_elf_origin_trick=yes ;;
        !            47:     esac
        !            48:     if test $is_noop = yes; then
        !            49:       RELOCATABLE_LDFLAGS=:
        !            50:       AC_SUBST([RELOCATABLE_LDFLAGS])
        !            51:     else
        !            52:       if test $use_elf_origin_trick = yes; then
        !            53:         dnl Use the dynamic linker's support for relocatable programs.
        !            54:         case "$ac_aux_dir" in
        !            55:           /*) reloc_ldflags="$ac_aux_dir/reloc-ldflags" ;;
        !            56:           *) reloc_ldflags="\$(top_builddir)/$ac_aux_dir/reloc-ldflags" ;;
        !            57:         esac
        !            58:         RELOCATABLE_LDFLAGS="\"$reloc_ldflags\" \"\$(host)\" \"\$(RELOCATABLE_LIBRARY_PATH)\""
        !            59:         AC_SUBST([RELOCATABLE_LDFLAGS])
        !            60:       else
        !            61:         dnl Unfortunately we cannot define INSTALL_PROGRAM to a command
        !            62:         dnl consisting of more than one word - libtool doesn't support this.
        !            63:         dnl So we abuse the INSTALL_PROGRAM_ENV hook, originally meant for the
        !            64:         dnl 'install-strip' target.
        !            65:         INSTALL_PROGRAM_ENV="RELOC_LIBRARY_PATH_VAR=\"$shlibpath_var\" RELOC_LIBRARY_PATH_VALUE=\"\$(RELOCATABLE_LIBRARY_PATH)\" RELOC_PREFIX=\"\$(prefix)\" RELOC_DESTDIR=\"\$(DESTDIR)\" 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_STRIP_PROG=\"\$(RELOCATABLE_STRIP)\" RELOC_INSTALL_PROG=\"$INSTALL_PROGRAM\""
        !            66:         AC_SUBST([INSTALL_PROGRAM_ENV])
        !            67:         case "$ac_aux_dir" in
        !            68:           /*) INSTALL_PROGRAM="$ac_aux_dir/install-reloc" ;;
        !            69:           *) INSTALL_PROGRAM="\$(top_builddir)/$ac_aux_dir/install-reloc" ;;
        !            70:         esac
        !            71:       fi
        !            72:     fi
        !            73:   fi
        !            74:   AM_CONDITIONAL([RELOCATABLE_VIA_LD],
        !            75:     [test $is_noop = yes || test $use_elf_origin_trick = yes])
        !            76: 
        !            77:   dnl RELOCATABLE_LIBRARY_PATH can be set in configure.ac. Default is empty.
        !            78:   AC_SUBST([RELOCATABLE_LIBRARY_PATH])
        !            79:   AC_SUBST([RELOCATABLE_CONFIG_H_DIR])
        !            80:   AC_SUBST([RELOCATABLE_SRC_DIR])
        !            81:   AC_SUBST([RELOCATABLE_BUILD_DIR])
        !            82: ])
        !            83: 
        !            84: dnl Determine the platform dependent parameters needed to use relocatability:
        !            85: dnl shlibpath_var.
        !            86: AC_DEFUN([AC_LIB_LIBPATH],
        !            87: [
        !            88:   AC_REQUIRE([AC_LIB_PROG_LD])            dnl we use $LD
        !            89:   AC_REQUIRE([AC_CANONICAL_HOST])         dnl we use $host
        !            90:   AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir
        !            91:   AC_CACHE_CHECK([for shared library path variable], [acl_cv_libpath], [
        !            92:     LD="$LD" \
        !            93:     ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.libpath" "$host" > conftest.sh
        !            94:     . ./conftest.sh
        !            95:     rm -f ./conftest.sh
        !            96:     acl_cv_libpath=${acl_cv_shlibpath_var:-none}
        !            97:   ])
        !            98:   shlibpath_var="$acl_cv_shlibpath_var"
        !            99: ])