mirror of
git://git.savannah.gnu.org/libtool.git
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9e7b9631ec
The gnuconfig project recognizes windows* as a host OS to denote native Windows environments. The commit message makes it sound like LLVM and Crablang communities will use the 'windows' value, whereas GNU will continue to use 'mingw'. But I think it's only a matter of time until people start to pass the option --host=x86_64-pc-windows to configure scripts. We should be prepared for that. Url: https://savannah.gnu.org/patch/?10387 * build-aux/ltmain.in: Treat windows* as equivalent to mingw*. * m4/libtool.m4: Likewise. * m4/ltdl.m4: Likewise. * m4/ltoptions.m4: Likewise. * tests/bindir.at: Likewise. * tests/deplibs-mingw.at: Likewise. * tests/lt_dladvise.at: Likewise. * tests/testsuite.at: Likewise.
911 lines
29 KiB
Plaintext
911 lines
29 KiB
Plaintext
# ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*-
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#
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# Copyright (C) 1999-2008, 2011-2019, 2021-2024 Free Software
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# Foundation, Inc.
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# Written by Thomas Tanner, 1999
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#
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# This file is free software; the Free Software Foundation gives
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# unlimited permission to copy and/or distribute it, with or without
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# modifications, as long as this notice is preserved.
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# serial 21 LTDL_INIT
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# LT_CONFIG_LTDL_DIR(DIRECTORY, [LTDL-MODE])
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# ------------------------------------------
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# DIRECTORY contains the libltdl sources. It is okay to call this
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# function multiple times, as long as the same DIRECTORY is always given.
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AC_DEFUN([LT_CONFIG_LTDL_DIR],
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[AC_BEFORE([$0], [LTDL_INIT])
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_$0($*)
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])# LT_CONFIG_LTDL_DIR
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# We break this out into a separate macro, so that we can call it safely
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# internally without being caught accidentally by the sed scan in libtoolize.
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m4_defun([_LT_CONFIG_LTDL_DIR],
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[dnl remove trailing slashes
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m4_pushdef([_ARG_DIR], m4_bpatsubst([$1], [/*$]))
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m4_case(_LTDL_DIR,
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[], [dnl only set lt_ltdl_dir if _ARG_DIR is not simply '.'
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m4_if(_ARG_DIR, [.],
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[],
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[m4_define([_LTDL_DIR], _ARG_DIR)
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_LT_SHELL_INIT([lt_ltdl_dir=']_ARG_DIR['])])],
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[m4_if(_ARG_DIR, _LTDL_DIR,
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[],
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[m4_fatal([multiple libltdl directories: ']_LTDL_DIR[', ']_ARG_DIR['])])])
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m4_popdef([_ARG_DIR])
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])# _LT_CONFIG_LTDL_DIR
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# Initialise:
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m4_define([_LTDL_DIR], [])
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# _LT_BUILD_PREFIX
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# ----------------
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# If Autoconf is new enough, expand to '$(top_build_prefix)', otherwise
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# to '$(top_builddir)/'.
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m4_define([_LT_BUILD_PREFIX],
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[m4_ifdef([AC_AUTOCONF_VERSION],
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[m4_if(m4_version_compare(m4_defn([AC_AUTOCONF_VERSION]), [2.62]),
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[-1], [m4_ifdef([_AC_HAVE_TOP_BUILD_PREFIX],
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[$(top_build_prefix)],
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[$(top_builddir)/])],
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[$(top_build_prefix)])],
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[$(top_builddir)/])[]dnl
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])
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# LTDL_CONVENIENCE
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# ----------------
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# sets LIBLTDL to the link flags for the libltdl convenience library and
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# LTDLINCL to the include flags for the libltdl header and adds
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# --enable-ltdl-convenience to the configure arguments. Note that
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# AC_CONFIG_SUBDIRS is not called here. LIBLTDL will be prefixed with
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# '$(top_build_prefix)' if available, otherwise with '$(top_builddir)/',
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# and LTDLINCL will be prefixed with '$(top_srcdir)/' (note the single
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# quotes!). If your package is not flat and you're not using automake,
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# define top_build_prefix, top_builddir, and top_srcdir appropriately
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# in your Makefiles.
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AC_DEFUN([LTDL_CONVENIENCE],
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[AC_BEFORE([$0], [LTDL_INIT])dnl
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dnl Although the argument is deprecated and no longer documented,
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dnl LTDL_CONVENIENCE used to take a DIRECTORY orgument, if we have one
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dnl here make sure it is the same as any other declaration of libltdl's
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dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
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dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
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m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
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_$0()
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])# LTDL_CONVENIENCE
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# AC_LIBLTDL_CONVENIENCE accepted a directory argument in older libtools,
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# now we have LT_CONFIG_LTDL_DIR:
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AU_DEFUN([AC_LIBLTDL_CONVENIENCE],
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[_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
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_LTDL_CONVENIENCE])
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dnl aclocal-1.4 backwards compatibility:
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dnl AC_DEFUN([AC_LIBLTDL_CONVENIENCE], [])
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# _LTDL_CONVENIENCE
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# -----------------
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# Code shared by LTDL_CONVENIENCE and LTDL_INIT([convenience]).
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m4_defun([_LTDL_CONVENIENCE],
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[case $enable_ltdl_convenience in
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no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
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"") enable_ltdl_convenience=yes
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ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
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esac
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LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdlc.la"
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LTDLDEPS=$LIBLTDL
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LTDLINCL='-I$(top_srcdir)'"${lt_ltdl_dir+/$lt_ltdl_dir}"
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AC_SUBST([LIBLTDL])
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AC_SUBST([LTDLDEPS])
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AC_SUBST([LTDLINCL])
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# For backwards non-gettext consistent compatibility...
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INCLTDL=$LTDLINCL
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AC_SUBST([INCLTDL])
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])# _LTDL_CONVENIENCE
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# LTDL_INSTALLABLE
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# ----------------
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# sets LIBLTDL to the link flags for the libltdl installable library
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# and LTDLINCL to the include flags for the libltdl header and adds
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# --enable-ltdl-install to the configure arguments. Note that
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# AC_CONFIG_SUBDIRS is not called from here. If an installed libltdl
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# is not found, LIBLTDL will be prefixed with '$(top_build_prefix)' if
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# available, otherwise with '$(top_builddir)/', and LTDLINCL will be
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# prefixed with '$(top_srcdir)/' (note the single quotes!). If your
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# package is not flat and you're not using automake, define top_build_prefix,
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# top_builddir, and top_srcdir appropriately in your Makefiles.
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# In the future, this macro may have to be called after LT_INIT.
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AC_DEFUN([LTDL_INSTALLABLE],
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[AC_BEFORE([$0], [LTDL_INIT])dnl
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dnl Although the argument is deprecated and no longer documented,
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dnl LTDL_INSTALLABLE used to take a DIRECTORY orgument, if we have one
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dnl here make sure it is the same as any other declaration of libltdl's
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dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
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dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
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m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
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_$0()
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])# LTDL_INSTALLABLE
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# AC_LIBLTDL_INSTALLABLE accepted a directory argument in older libtools,
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# now we have LT_CONFIG_LTDL_DIR:
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AU_DEFUN([AC_LIBLTDL_INSTALLABLE],
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[_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
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_LTDL_INSTALLABLE])
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dnl aclocal-1.4 backwards compatibility:
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dnl AC_DEFUN([AC_LIBLTDL_INSTALLABLE], [])
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# _LTDL_INSTALLABLE
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# -----------------
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# Code shared by LTDL_INSTALLABLE and LTDL_INIT([installable]).
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m4_defun([_LTDL_INSTALLABLE],
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[if test -f "$prefix/lib/libltdl.la"; then
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lt_save_LDFLAGS=$LDFLAGS
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LDFLAGS="-L$prefix/lib $LDFLAGS"
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AC_CHECK_LIB([ltdl], [lt_dlinit], [lt_lib_ltdl=yes])
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LDFLAGS=$lt_save_LDFLAGS
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if test yes = "${lt_lib_ltdl-no}"; then
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if test yes != "$enable_ltdl_install"; then
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# Don't overwrite $prefix/lib/libltdl.la without --enable-ltdl-install
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AC_MSG_WARN([not overwriting libltdl at $prefix, force with '--enable-ltdl-install'])
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enable_ltdl_install=no
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fi
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elif test no = "$enable_ltdl_install"; then
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AC_MSG_WARN([libltdl not installed, but installation disabled])
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fi
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fi
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# If configure.ac declared an installable ltdl, and the user didn't override
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# with --disable-ltdl-install, we will install the shipped libltdl.
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case $enable_ltdl_install in
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no) ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
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LIBLTDL=-lltdl
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LTDLDEPS=
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LTDLINCL=
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;;
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*) enable_ltdl_install=yes
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ac_configure_args="$ac_configure_args --enable-ltdl-install"
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LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdl.la"
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LTDLDEPS=$LIBLTDL
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LTDLINCL='-I$(top_srcdir)'"${lt_ltdl_dir+/$lt_ltdl_dir}"
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;;
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esac
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AC_SUBST([LIBLTDL])
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AC_SUBST([LTDLDEPS])
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AC_SUBST([LTDLINCL])
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# For backwards non-gettext consistent compatibility...
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INCLTDL=$LTDLINCL
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AC_SUBST([INCLTDL])
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])# LTDL_INSTALLABLE
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# _LTDL_MODE_DISPATCH
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# -------------------
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m4_define([_LTDL_MODE_DISPATCH],
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[dnl If _LTDL_DIR is '.', then we are configuring libltdl itself:
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m4_if(_LTDL_DIR, [],
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[],
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dnl if _LTDL_MODE was not set already, the default value is 'subproject':
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[m4_case(m4_default(_LTDL_MODE, [subproject]),
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[subproject], [AC_CONFIG_SUBDIRS(_LTDL_DIR)
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_LT_SHELL_INIT([lt_dlopen_dir=$lt_ltdl_dir])],
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[nonrecursive], [_LT_SHELL_INIT([lt_dlopen_dir=$lt_ltdl_dir; lt_libobj_prefix=$lt_ltdl_dir/])],
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[recursive], [],
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[m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])dnl
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dnl Be careful not to expand twice:
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m4_define([$0], [])
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])# _LTDL_MODE_DISPATCH
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# _LT_LIBOBJ(MODULE_NAME)
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# -----------------------
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# Like AC_LIBOBJ, except that MODULE_NAME goes into _LT_LIBOBJS instead
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# of into LIBOBJS.
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AC_DEFUN([_LT_LIBOBJ], [
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m4_pattern_allow([^_LT_LIBOBJS$])
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_LT_LIBOBJS="$_LT_LIBOBJS $1.$ac_objext"
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])# _LT_LIBOBJS
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# LTDL_INIT([OPTIONS])
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# --------------------
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# Clients of libltdl can use this macro to allow the installer to
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# choose between a shipped copy of the ltdl sources or a preinstalled
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# version of the library. If the shipped ltdl sources are not in a
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# subdirectory named libltdl, the directory name must be given by
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# LT_CONFIG_LTDL_DIR.
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AC_DEFUN([LTDL_INIT],
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[dnl Parse OPTIONS
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_LT_SET_OPTIONS([$0], [$1])
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dnl We need to keep our own list of libobjs separate from our parent project,
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dnl and the easiest way to do that is redefine the AC_LIBOBJs macro while
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dnl we look for our own LIBOBJs.
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m4_pushdef([AC_LIBOBJ], m4_defn([_LT_LIBOBJ]))
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m4_pushdef([AC_LIBSOURCES])
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dnl If not otherwise defined, default to the 1.5.x compatible subproject mode:
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m4_if(_LTDL_MODE, [],
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[m4_define([_LTDL_MODE], m4_default([$2], [subproject]))
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m4_if([-1], [m4_bregexp(_LTDL_MODE, [\(subproject\|\(non\)?recursive\)])],
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[m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])
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AC_ARG_WITH([included_ltdl],
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[AS_HELP_STRING([--with-included-ltdl],
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[use the GNU ltdl sources included here])])
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if test yes != "$with_included_ltdl"; then
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# We are not being forced to use the included libltdl sources, so
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# decide whether there is a useful installed version we can use.
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AC_CHECK_HEADER([ltdl.h],
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[AC_CHECK_DECL([lt_dlinterface_register],
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[AC_CHECK_LIB([ltdl], [lt_dladvise_preload],
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[with_included_ltdl=no],
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[with_included_ltdl=yes])],
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[with_included_ltdl=yes],
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[AC_INCLUDES_DEFAULT
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#include <ltdl.h>])],
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[with_included_ltdl=yes],
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[AC_INCLUDES_DEFAULT]
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)
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fi
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dnl If neither LT_CONFIG_LTDL_DIR, LTDL_CONVENIENCE nor LTDL_INSTALLABLE
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dnl was called yet, then for old times' sake, we assume libltdl is in an
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dnl eponymous directory:
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AC_PROVIDE_IFELSE([LT_CONFIG_LTDL_DIR], [], [_LT_CONFIG_LTDL_DIR([libltdl])])
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AC_ARG_WITH([ltdl_include],
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[AS_HELP_STRING([--with-ltdl-include=DIR],
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[use the ltdl headers installed in DIR])])
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if test -n "$with_ltdl_include"; then
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if test -f "$with_ltdl_include/ltdl.h"; then :
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else
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AC_MSG_ERROR([invalid ltdl include directory: '$with_ltdl_include'])
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fi
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else
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with_ltdl_include=no
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fi
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AC_ARG_WITH([ltdl_lib],
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[AS_HELP_STRING([--with-ltdl-lib=DIR],
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[use the libltdl.la installed in DIR])])
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if test -n "$with_ltdl_lib"; then
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if test -f "$with_ltdl_lib/libltdl.la"; then :
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else
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AC_MSG_ERROR([invalid ltdl library directory: '$with_ltdl_lib'])
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fi
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else
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with_ltdl_lib=no
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fi
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case ,$with_included_ltdl,$with_ltdl_include,$with_ltdl_lib, in
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,yes,no,no,)
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m4_case(m4_default(_LTDL_TYPE, [convenience]),
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[convenience], [_LTDL_CONVENIENCE],
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[installable], [_LTDL_INSTALLABLE],
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[m4_fatal([unknown libltdl build type: ]_LTDL_TYPE)])
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;;
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,no,no,no,)
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# If the included ltdl is not to be used, then use the
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# preinstalled libltdl we found.
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AC_DEFINE([HAVE_LTDL], [1],
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[Define this if a modern libltdl is already installed])
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LIBLTDL=-lltdl
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LTDLDEPS=
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LTDLINCL=
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;;
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,no*,no,*)
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AC_MSG_ERROR(['--with-ltdl-include' and '--with-ltdl-lib' options must be used together])
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;;
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*) with_included_ltdl=no
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LIBLTDL="-L$with_ltdl_lib -lltdl"
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LTDLDEPS=
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LTDLINCL=-I$with_ltdl_include
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;;
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esac
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INCLTDL=$LTDLINCL
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# Report our decision...
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AC_MSG_CHECKING([where to find libltdl headers])
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AC_MSG_RESULT([$LTDLINCL])
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AC_MSG_CHECKING([where to find libltdl library])
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AC_MSG_RESULT([$LIBLTDL])
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_LTDL_SETUP
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dnl restore autoconf definition.
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m4_popdef([AC_LIBOBJ])
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m4_popdef([AC_LIBSOURCES])
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AC_CONFIG_COMMANDS_PRE([
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_ltdl_libobjs=
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_ltdl_ltlibobjs=
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if test -n "$_LT_LIBOBJS"; then
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# Remove the extension.
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_lt_sed_drop_objext='s/\.o$//;s/\.obj$//'
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for i in `for i in $_LT_LIBOBJS; do echo "$i"; done | $SED "$_lt_sed_drop_objext" | sort -u`; do
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_ltdl_libobjs="$_ltdl_libobjs $lt_libobj_prefix$i.$ac_objext"
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_ltdl_ltlibobjs="$_ltdl_ltlibobjs $lt_libobj_prefix$i.lo"
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done
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fi
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AC_SUBST([ltdl_LIBOBJS], [$_ltdl_libobjs])
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AC_SUBST([ltdl_LTLIBOBJS], [$_ltdl_ltlibobjs])
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])
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# Only expand once:
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m4_define([LTDL_INIT])
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])# LTDL_INIT
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# Old names:
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AU_DEFUN([AC_LIB_LTDL], [LTDL_INIT($@)])
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AU_DEFUN([AC_WITH_LTDL], [LTDL_INIT($@)])
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AU_DEFUN([LT_WITH_LTDL], [LTDL_INIT($@)])
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dnl aclocal-1.4 backwards compatibility:
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dnl AC_DEFUN([AC_LIB_LTDL], [])
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dnl AC_DEFUN([AC_WITH_LTDL], [])
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dnl AC_DEFUN([LT_WITH_LTDL], [])
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# _LTDL_SETUP
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# -----------
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# Perform all the checks necessary for compilation of the ltdl objects
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# -- including compiler checks and header checks. This is a public
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# interface mainly for the benefit of libltdl's own configure.ac, most
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# other users should call LTDL_INIT instead.
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AC_DEFUN([_LTDL_SETUP],
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[AC_REQUIRE([AC_PROG_CC])dnl
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AC_REQUIRE([LT_SYS_MODULE_EXT])dnl
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AC_REQUIRE([LT_SYS_MODULE_PATH])dnl
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AC_REQUIRE([LT_SYS_DLSEARCH_PATH])dnl
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AC_REQUIRE([LT_LIB_DLLOAD])dnl
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AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
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AC_REQUIRE([LT_FUNC_DLSYM_USCORE])dnl
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AC_REQUIRE([LT_SYS_DLOPEN_DEPLIBS])dnl
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AC_REQUIRE([LT_FUNC_ARGZ])dnl
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m4_require([_LT_CHECK_OBJDIR])dnl
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m4_require([_LT_HEADER_DLFCN])dnl
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m4_require([_LT_CHECK_DLPREOPEN])dnl
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m4_require([_LT_DECL_SED])dnl
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dnl Don't require this, or it will be expanded earlier than the code
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dnl that sets the variables it relies on:
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_LT_ENABLE_INSTALL
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dnl _LTDL_MODE specific code must be called at least once:
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_LTDL_MODE_DISPATCH
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# In order that ltdl.c can compile, find out the first AC_CONFIG_HEADERS
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# the user used. This is so that ltdl.h can pick up the parent projects
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# config.h file, The first file in AC_CONFIG_HEADERS must contain the
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# definitions required by ltdl.c.
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# FIXME: Remove use of undocumented AC_LIST_HEADERS (2.59 compatibility).
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AC_CONFIG_COMMANDS_PRE([dnl
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m4_pattern_allow([^LT_CONFIG_H$])dnl
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m4_ifset([AH_HEADER],
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[LT_CONFIG_H=AH_HEADER],
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[m4_ifset([AC_LIST_HEADERS],
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[LT_CONFIG_H=`echo "AC_LIST_HEADERS" | $SED 's|^[[ ]]*||;s|[[ :]].*$||'`],
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[])])])
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|
AC_SUBST([LT_CONFIG_H])
|
|
|
|
AC_CHECK_HEADERS([unistd.h dl.h sys/dl.h dld.h mach-o/dyld.h dirent.h],
|
|
[], [], [AC_INCLUDES_DEFAULT])
|
|
|
|
AC_CHECK_FUNCS([closedir opendir readdir], [], [AC_LIBOBJ([lt__dirent])])
|
|
AC_CHECK_FUNCS([strlcat strlcpy], [], [AC_LIBOBJ([lt__strl])])
|
|
|
|
m4_pattern_allow([LT_LIBEXT])dnl
|
|
AC_DEFINE_UNQUOTED([LT_LIBEXT],["$libext"],[The archive extension])
|
|
|
|
name=
|
|
eval "lt_libprefix=\"$libname_spec\""
|
|
m4_pattern_allow([LT_LIBPREFIX])dnl
|
|
AC_DEFINE_UNQUOTED([LT_LIBPREFIX],["$lt_libprefix"],[The archive prefix])
|
|
|
|
name=ltdl
|
|
eval "LTDLOPEN=\"$libname_spec\""
|
|
AC_SUBST([LTDLOPEN])
|
|
])# _LTDL_SETUP
|
|
|
|
|
|
# _LT_ENABLE_INSTALL
|
|
# ------------------
|
|
m4_define([_LT_ENABLE_INSTALL],
|
|
[AC_ARG_ENABLE([ltdl-install],
|
|
[AS_HELP_STRING([--enable-ltdl-install], [install libltdl])])
|
|
|
|
case ,$enable_ltdl_install,$enable_ltdl_convenience in
|
|
*yes*) ;;
|
|
*) enable_ltdl_convenience=yes ;;
|
|
esac
|
|
|
|
m4_ifdef([AM_CONDITIONAL],
|
|
[AM_CONDITIONAL(INSTALL_LTDL, test no != "${enable_ltdl_install-no}")
|
|
AM_CONDITIONAL(CONVENIENCE_LTDL, test no != "${enable_ltdl_convenience-no}")])
|
|
])# _LT_ENABLE_INSTALL
|
|
|
|
|
|
# LT_SYS_DLOPEN_DEPLIBS
|
|
# ---------------------
|
|
AC_DEFUN([LT_SYS_DLOPEN_DEPLIBS],
|
|
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
|
|
AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
|
|
[lt_cv_sys_dlopen_deplibs],
|
|
[# PORTME does your system automatically load deplibs for dlopen?
|
|
# or its logical equivalent (e.g. shl_load for HP-UX < 11)
|
|
# For now, we just catch OSes we know something about -- in the
|
|
# future, we'll try test this programmatically.
|
|
lt_cv_sys_dlopen_deplibs=unknown
|
|
case $host_os in
|
|
aix3*|aix4.1.*|aix4.2.*)
|
|
# Unknown whether this is true for these versions of AIX, but
|
|
# we want this 'case' here to explicitly catch those versions.
|
|
lt_cv_sys_dlopen_deplibs=unknown
|
|
;;
|
|
aix[[4-9]]*)
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
amigaos*)
|
|
case $host_cpu in
|
|
powerpc)
|
|
lt_cv_sys_dlopen_deplibs=no
|
|
;;
|
|
esac
|
|
;;
|
|
bitrig*)
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
darwin*)
|
|
# Assuming the user has installed a libdl from somewhere, this is true
|
|
# If you are looking for one http://www.opendarwin.org/projects/dlcompat
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
freebsd* | dragonfly* | midnightbsd*)
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
gnu* | linux* | k*bsd*-gnu | kopensolaris*-gnu)
|
|
# GNU and its variants, using gnu ld.so (Glibc)
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
hpux10*|hpux11*)
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
interix*)
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
irix[[12345]]*|irix6.[[01]]*)
|
|
# Catch all versions of IRIX before 6.2, and indicate that we don't
|
|
# know how it worked for any of those versions.
|
|
lt_cv_sys_dlopen_deplibs=unknown
|
|
;;
|
|
irix*)
|
|
# The case above catches anything before 6.2, and it's known that
|
|
# at 6.2 and later dlopen does load deplibs.
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
netbsd*)
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
openbsd*)
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
osf[[1234]]*)
|
|
# dlopen did load deplibs (at least at 4.x), but until the 5.x series,
|
|
# it did *not* use an RPATH in a shared library to find objects the
|
|
# library depends on, so we explicitly say 'no'.
|
|
lt_cv_sys_dlopen_deplibs=no
|
|
;;
|
|
osf5.0|osf5.0a|osf5.1)
|
|
# dlopen *does* load deplibs and with the right loader patch applied
|
|
# it even uses RPATH in a shared library to search for shared objects
|
|
# that the library depends on, but there's no easy way to know if that
|
|
# patch is installed. Since this is the case, all we can really
|
|
# say is unknown -- it depends on the patch being installed. If
|
|
# it is, this changes to 'yes'. Without it, it would be 'no'.
|
|
lt_cv_sys_dlopen_deplibs=unknown
|
|
;;
|
|
osf*)
|
|
# the two cases above should catch all versions of osf <= 5.1. Read
|
|
# the comments above for what we know about them.
|
|
# At > 5.1, deplibs are loaded *and* any RPATH in a shared library
|
|
# is used to find them so we can finally say 'yes'.
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
qnx*)
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
solaris*)
|
|
lt_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
esac
|
|
])
|
|
if test yes != "$lt_cv_sys_dlopen_deplibs"; then
|
|
AC_DEFINE([LTDL_DLOPEN_DEPLIBS], [1],
|
|
[Define if the OS needs help to load dependent libraries for dlopen().])
|
|
fi
|
|
])# LT_SYS_DLOPEN_DEPLIBS
|
|
|
|
# Old name:
|
|
AU_ALIAS([AC_LTDL_SYS_DLOPEN_DEPLIBS], [LT_SYS_DLOPEN_DEPLIBS])
|
|
dnl aclocal-1.4 backwards compatibility:
|
|
dnl AC_DEFUN([AC_LTDL_SYS_DLOPEN_DEPLIBS], [])
|
|
|
|
|
|
# LT_SYS_MODULE_EXT
|
|
# -----------------
|
|
AC_DEFUN([LT_SYS_MODULE_EXT],
|
|
[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
|
|
AC_CACHE_CHECK([what extension is used for runtime loadable modules],
|
|
[libltdl_cv_shlibext],
|
|
[
|
|
module=yes
|
|
eval libltdl_cv_shlibext=$shrext_cmds
|
|
module=no
|
|
eval libltdl_cv_shrext=$shrext_cmds
|
|
])
|
|
if test -n "$libltdl_cv_shlibext"; then
|
|
m4_pattern_allow([LT_MODULE_EXT])dnl
|
|
AC_DEFINE_UNQUOTED([LT_MODULE_EXT], ["$libltdl_cv_shlibext"],
|
|
[Define to the extension used for runtime loadable modules, say, ".so".])
|
|
fi
|
|
if test "$libltdl_cv_shrext" != "$libltdl_cv_shlibext"; then
|
|
m4_pattern_allow([LT_SHARED_EXT])dnl
|
|
AC_DEFINE_UNQUOTED([LT_SHARED_EXT], ["$libltdl_cv_shrext"],
|
|
[Define to the shared library suffix, say, ".dylib".])
|
|
fi
|
|
if test -n "$shared_archive_member_spec"; then
|
|
m4_pattern_allow([LT_SHARED_LIB_MEMBER])dnl
|
|
AC_DEFINE_UNQUOTED([LT_SHARED_LIB_MEMBER], ["($shared_archive_member_spec.o)"],
|
|
[Define to the shared archive member specification, say "(shr.o)".])
|
|
fi
|
|
])# LT_SYS_MODULE_EXT
|
|
|
|
# Old name:
|
|
AU_ALIAS([AC_LTDL_SHLIBEXT], [LT_SYS_MODULE_EXT])
|
|
dnl aclocal-1.4 backwards compatibility:
|
|
dnl AC_DEFUN([AC_LTDL_SHLIBEXT], [])
|
|
|
|
|
|
# LT_SYS_MODULE_PATH
|
|
# ------------------
|
|
AC_DEFUN([LT_SYS_MODULE_PATH],
|
|
[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
|
|
AC_CACHE_CHECK([what variable specifies run-time module search path],
|
|
[lt_cv_module_path_var], [lt_cv_module_path_var=$shlibpath_var])
|
|
if test -n "$lt_cv_module_path_var"; then
|
|
m4_pattern_allow([LT_MODULE_PATH_VAR])dnl
|
|
AC_DEFINE_UNQUOTED([LT_MODULE_PATH_VAR], ["$lt_cv_module_path_var"],
|
|
[Define to the name of the environment variable that determines the run-time module search path.])
|
|
fi
|
|
])# LT_SYS_MODULE_PATH
|
|
|
|
# Old name:
|
|
AU_ALIAS([AC_LTDL_SHLIBPATH], [LT_SYS_MODULE_PATH])
|
|
dnl aclocal-1.4 backwards compatibility:
|
|
dnl AC_DEFUN([AC_LTDL_SHLIBPATH], [])
|
|
|
|
|
|
# LT_SYS_DLSEARCH_PATH
|
|
# --------------------
|
|
AC_DEFUN([LT_SYS_DLSEARCH_PATH],
|
|
[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
|
|
AC_CACHE_CHECK([for the default library search path],
|
|
[lt_cv_sys_dlsearch_path],
|
|
[lt_cv_sys_dlsearch_path=$sys_lib_dlsearch_path_spec])
|
|
if test -n "$lt_cv_sys_dlsearch_path"; then
|
|
sys_dlsearch_path=
|
|
for dir in $lt_cv_sys_dlsearch_path; do
|
|
if test -z "$sys_dlsearch_path"; then
|
|
sys_dlsearch_path=$dir
|
|
else
|
|
sys_dlsearch_path=$sys_dlsearch_path$PATH_SEPARATOR$dir
|
|
fi
|
|
done
|
|
m4_pattern_allow([LT_DLSEARCH_PATH])dnl
|
|
AC_DEFINE_UNQUOTED([LT_DLSEARCH_PATH], ["$sys_dlsearch_path"],
|
|
[Define to the system default library search path.])
|
|
fi
|
|
])# LT_SYS_DLSEARCH_PATH
|
|
|
|
# Old name:
|
|
AU_ALIAS([AC_LTDL_SYSSEARCHPATH], [LT_SYS_DLSEARCH_PATH])
|
|
dnl aclocal-1.4 backwards compatibility:
|
|
dnl AC_DEFUN([AC_LTDL_SYSSEARCHPATH], [])
|
|
|
|
|
|
# _LT_CHECK_DLPREOPEN
|
|
# -------------------
|
|
m4_defun([_LT_CHECK_DLPREOPEN],
|
|
[m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
|
|
AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
|
|
[libltdl_cv_preloaded_symbols],
|
|
[if test -n "$lt_cv_sys_global_symbol_pipe"; then
|
|
libltdl_cv_preloaded_symbols=yes
|
|
else
|
|
libltdl_cv_preloaded_symbols=no
|
|
fi
|
|
])
|
|
if test yes = "$libltdl_cv_preloaded_symbols"; then
|
|
AC_DEFINE([HAVE_PRELOADED_SYMBOLS], [1],
|
|
[Define if libtool can extract symbol lists from object files.])
|
|
fi
|
|
])# _LT_CHECK_DLPREOPEN
|
|
|
|
|
|
# LT_LIB_DLLOAD
|
|
# -------------
|
|
AC_DEFUN([LT_LIB_DLLOAD],
|
|
[m4_pattern_allow([^LT_DLLOADERS$])
|
|
LT_DLLOADERS=
|
|
AC_SUBST([LT_DLLOADERS])
|
|
|
|
AC_LANG_PUSH([C])
|
|
lt_dlload_save_LIBS=$LIBS
|
|
|
|
LIBADD_DLOPEN=
|
|
AC_SEARCH_LIBS([dlopen], [dl],
|
|
[AC_DEFINE([HAVE_LIBDL], [1],
|
|
[Define if you have the libdl library or equivalent.])
|
|
if test "$ac_cv_search_dlopen" != "none required"; then
|
|
LIBADD_DLOPEN=-ldl
|
|
fi
|
|
libltdl_cv_lib_dl_dlopen=yes
|
|
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
|
|
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if HAVE_DLFCN_H
|
|
# include <dlfcn.h>
|
|
#endif
|
|
]], [[dlopen(0, 0);]])],
|
|
[AC_DEFINE([HAVE_LIBDL], [1],
|
|
[Define if you have the libdl library or equivalent.])
|
|
libltdl_cv_func_dlopen=yes
|
|
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
|
|
[AC_CHECK_LIB([svld], [dlopen],
|
|
[AC_DEFINE([HAVE_LIBDL], [1],
|
|
[Define if you have the libdl library or equivalent.])
|
|
LIBADD_DLOPEN=-lsvld libltdl_cv_func_dlopen=yes
|
|
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"])])])
|
|
if test yes = "$libltdl_cv_func_dlopen" || test yes = "$libltdl_cv_lib_dl_dlopen"
|
|
then
|
|
lt_save_LIBS=$LIBS
|
|
LIBS="$LIBS $LIBADD_DLOPEN"
|
|
AC_CHECK_FUNCS([dlerror])
|
|
LIBS=$lt_save_LIBS
|
|
fi
|
|
AC_SUBST([LIBADD_DLOPEN])
|
|
|
|
LIBADD_SHL_LOAD=
|
|
AC_CHECK_FUNC([shl_load],
|
|
[AC_DEFINE([HAVE_SHL_LOAD], [1],
|
|
[Define if you have the shl_load function.])
|
|
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"],
|
|
[AC_CHECK_LIB([dld], [shl_load],
|
|
[AC_DEFINE([HAVE_SHL_LOAD], [1],
|
|
[Define if you have the shl_load function.])
|
|
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"
|
|
LIBADD_SHL_LOAD=-ldld])])
|
|
AC_SUBST([LIBADD_SHL_LOAD])
|
|
|
|
case $host_os in
|
|
darwin[[1567]].*)
|
|
# We only want this for pre-Mac OS X 10.4.
|
|
AC_CHECK_FUNC([_dyld_func_lookup],
|
|
[AC_DEFINE([HAVE_DYLD], [1],
|
|
[Define if you have the _dyld_func_lookup function.])
|
|
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dyld.la"])
|
|
;;
|
|
beos*)
|
|
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}load_add_on.la"
|
|
;;
|
|
cygwin* | mingw* | windows* | pw32*)
|
|
AC_CHECK_DECLS([cygwin_conv_path], [], [], [[#include <sys/cygwin.h>]])
|
|
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}loadlibrary.la"
|
|
;;
|
|
esac
|
|
|
|
AC_CHECK_LIB([dld], [dld_link],
|
|
[AC_DEFINE([HAVE_DLD], [1],
|
|
[Define if you have the GNU dld library.])
|
|
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dld_link.la"])
|
|
AC_SUBST([LIBADD_DLD_LINK])
|
|
|
|
m4_pattern_allow([^LT_DLPREOPEN$])
|
|
LT_DLPREOPEN=
|
|
if test -n "$LT_DLLOADERS"
|
|
then
|
|
for lt_loader in $LT_DLLOADERS; do
|
|
LT_DLPREOPEN="$LT_DLPREOPEN-dlpreopen $lt_loader "
|
|
done
|
|
AC_DEFINE([HAVE_LIBDLLOADER], [1],
|
|
[Define if libdlloader will be built on this platform])
|
|
fi
|
|
AC_SUBST([LT_DLPREOPEN])
|
|
|
|
dnl This isn't used anymore, but set it for backwards compatibility
|
|
LIBADD_DL="$LIBADD_DLOPEN $LIBADD_SHL_LOAD"
|
|
AC_SUBST([LIBADD_DL])
|
|
|
|
LIBS=$lt_dlload_save_LIBS
|
|
AC_LANG_POP
|
|
])# LT_LIB_DLLOAD
|
|
|
|
# Old name:
|
|
AU_ALIAS([AC_LTDL_DLLIB], [LT_LIB_DLLOAD])
|
|
dnl aclocal-1.4 backwards compatibility:
|
|
dnl AC_DEFUN([AC_LTDL_DLLIB], [])
|
|
|
|
|
|
# LT_SYS_SYMBOL_USCORE
|
|
# --------------------
|
|
# does the compiler prefix global symbols with an underscore?
|
|
AC_DEFUN([LT_SYS_SYMBOL_USCORE],
|
|
[m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
|
|
AC_CACHE_CHECK([for _ prefix in compiled symbols],
|
|
[lt_cv_sys_symbol_underscore],
|
|
[lt_cv_sys_symbol_underscore=no
|
|
cat > conftest.$ac_ext <<_LT_EOF
|
|
void nm_test_func(){}
|
|
int main(){nm_test_func;return 0;}
|
|
_LT_EOF
|
|
if AC_TRY_EVAL(ac_compile); then
|
|
# Now try to grab the symbols.
|
|
ac_nlist=conftest.nm
|
|
if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
|
|
# See whether the symbols have a leading underscore.
|
|
if grep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
|
|
lt_cv_sys_symbol_underscore=yes
|
|
else
|
|
if grep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
|
|
:
|
|
else
|
|
echo "configure: cannot find nm_test_func in $ac_nlist" >&AS_MESSAGE_LOG_FD
|
|
fi
|
|
fi
|
|
else
|
|
echo "configure: cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
|
|
fi
|
|
else
|
|
echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
|
|
cat conftest.c >&AS_MESSAGE_LOG_FD
|
|
fi
|
|
rm -rf conftest*
|
|
])
|
|
sys_symbol_underscore=$lt_cv_sys_symbol_underscore
|
|
AC_SUBST([sys_symbol_underscore])
|
|
])# LT_SYS_SYMBOL_USCORE
|
|
|
|
# Old name:
|
|
AU_ALIAS([AC_LTDL_SYMBOL_USCORE], [LT_SYS_SYMBOL_USCORE])
|
|
dnl aclocal-1.4 backwards compatibility:
|
|
dnl AC_DEFUN([AC_LTDL_SYMBOL_USCORE], [])
|
|
|
|
|
|
# LT_FUNC_DLSYM_USCORE
|
|
# --------------------
|
|
AC_DEFUN([LT_FUNC_DLSYM_USCORE],
|
|
[AC_REQUIRE([_LT_COMPILER_PIC])dnl for lt_prog_compiler_wl
|
|
AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl for lt_cv_sys_symbol_underscore
|
|
AC_REQUIRE([LT_SYS_MODULE_EXT])dnl for libltdl_cv_shlibext
|
|
if test yes = "$lt_cv_sys_symbol_underscore"; then
|
|
if test yes = "$libltdl_cv_func_dlopen" || test yes = "$libltdl_cv_lib_dl_dlopen"; then
|
|
AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
|
|
[libltdl_cv_need_uscore],
|
|
[libltdl_cv_need_uscore=unknown
|
|
dlsym_uscore_save_LIBS=$LIBS
|
|
LIBS="$LIBS $LIBADD_DLOPEN"
|
|
libname=conftmod # stay within 8.3 filename limits!
|
|
cat >$libname.$ac_ext <<_LT_EOF
|
|
[#line $LINENO "configure"
|
|
#include "confdefs.h"
|
|
/* When -fvisibility=hidden is used, assume the code has been annotated
|
|
correspondingly for the symbols needed. */
|
|
#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
|
|
int fnord () __attribute__((visibility("default")));
|
|
#endif
|
|
int fnord () { return 42; }]
|
|
_LT_EOF
|
|
|
|
# ltfn_module_cmds module_cmds
|
|
# Execute tilde-delimited MODULE_CMDS with environment primed for
|
|
# $module_cmds or $archive_cmds type content.
|
|
ltfn_module_cmds ()
|
|
{( # subshell avoids polluting parent global environment
|
|
module_cmds_save_ifs=$IFS; IFS='~'
|
|
for cmd in @S|@1; do
|
|
IFS=$module_cmds_save_ifs
|
|
libobjs=$libname.$ac_objext; lib=$libname$libltdl_cv_shlibext
|
|
rpath=/not-exists; soname=$libname$libltdl_cv_shlibext; output_objdir=.
|
|
major=; versuffix=; verstring=; deplibs=
|
|
ECHO=echo; wl=$lt_prog_compiler_wl; allow_undefined_flag=
|
|
eval $cmd
|
|
done
|
|
IFS=$module_cmds_save_ifs
|
|
)}
|
|
|
|
# Compile a loadable module using libtool macro expansion results.
|
|
$CC $pic_flag -c $libname.$ac_ext
|
|
ltfn_module_cmds "${module_cmds:-$archive_cmds}"
|
|
|
|
# Try to fetch fnord with dlsym().
|
|
libltdl_dlunknown=0; libltdl_dlnouscore=1; libltdl_dluscore=2
|
|
cat >conftest.$ac_ext <<_LT_EOF
|
|
[#line $LINENO "configure"
|
|
#include "confdefs.h"
|
|
#if HAVE_DLFCN_H
|
|
#include <dlfcn.h>
|
|
#endif
|
|
#include <stdio.h>
|
|
#ifndef RTLD_GLOBAL
|
|
# ifdef DL_GLOBAL
|
|
# define RTLD_GLOBAL DL_GLOBAL
|
|
# else
|
|
# define RTLD_GLOBAL 0
|
|
# endif
|
|
#endif
|
|
#ifndef RTLD_NOW
|
|
# ifdef DL_NOW
|
|
# define RTLD_NOW DL_NOW
|
|
# else
|
|
# define RTLD_NOW 0
|
|
# endif
|
|
#endif
|
|
int main () {
|
|
void *handle = dlopen ("`pwd`/$libname$libltdl_cv_shlibext", RTLD_GLOBAL|RTLD_NOW);
|
|
int status = $libltdl_dlunknown;
|
|
if (handle) {
|
|
if (dlsym (handle, "fnord"))
|
|
status = $libltdl_dlnouscore;
|
|
else {
|
|
if (dlsym (handle, "_fnord"))
|
|
status = $libltdl_dluscore;
|
|
else
|
|
puts (dlerror ());
|
|
}
|
|
dlclose (handle);
|
|
} else
|
|
puts (dlerror ());
|
|
return status;
|
|
}]
|
|
_LT_EOF
|
|
if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then
|
|
(./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
|
|
libltdl_status=$?
|
|
case x$libltdl_status in
|
|
x$libltdl_dlnouscore) libltdl_cv_need_uscore=no ;;
|
|
x$libltdl_dluscore) libltdl_cv_need_uscore=yes ;;
|
|
x*) libltdl_cv_need_uscore=unknown ;;
|
|
esac
|
|
fi
|
|
rm -rf conftest* $libname*
|
|
LIBS=$dlsym_uscore_save_LIBS
|
|
])
|
|
fi
|
|
fi
|
|
|
|
if test yes = "$libltdl_cv_need_uscore"; then
|
|
AC_DEFINE([NEED_USCORE], [1],
|
|
[Define if dlsym() requires a leading underscore in symbol names.])
|
|
fi
|
|
])# LT_FUNC_DLSYM_USCORE
|
|
|
|
# Old name:
|
|
AU_ALIAS([AC_LTDL_DLSYM_USCORE], [LT_FUNC_DLSYM_USCORE])
|
|
dnl aclocal-1.4 backwards compatibility:
|
|
dnl AC_DEFUN([AC_LTDL_DLSYM_USCORE], [])
|