Make sure we're not lacking any functionality provided by the
incumbent gnulib bootstrap script, and where it's easy to do so
(like it is here), provide better functionality!
* bootstrap (require_patch): Make sure that PATCH expands to the
best `patch' command available on the system, honouring
overrides in the users environment.
(require_patch_buildreq): Automatically add a requirement for a
patch command to buildreq when there are diff files in
$local_gl_dir.
(func_require_buildtools_uptodate): Call require_patch_buildreq
before testing build tool versions.
(func_gnulib_tool_copy_file): Make sure PATCH is set before using
gnulib-tool to copy files.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
I like to name temporary directories that I will remove shortly
with two leading commas so that they sort lexicographically at
the top of `ls' output. Now, `./configure
--prefix=`pwd`/,,inst' works again, for the first time in
several years.
* cfg.mk (sc_prohibit_sed_s_comma): Comma is too common a
character to use routinely as the separator for sed
substitutions on file paths and other variables determined by
the user, causing bugs like the one I describe above. Make sure
we don't accidentally reintroduce any comma separators in
future.
* Makefile.am, bootstrap, bootstrap.conf, build-aux/extract-trace,
build-aux/general.m4sh, build-aux/git-hooks/commit-msg,
build-aux/git-log-fix, build-aux/ltmain.m4sh, libtoolize.m4sh,
m4/libtool.m4, m4/ltdl.m4, tests/cdemo-undef.test,
tests/cmdline_wrap.at, tests/darwin.at, tests/defs.m4sh,
tests/getopt-m4sh.at, tests/install.at, tests/libtoolize.at,
tests/mdemo/Makefile.am, tests/need_lib_prefix.at,
tests/sysroot.at, tests/tagdemo-undef.test, tests/testsuite.at:
Try to use `|' as the default separator wherever possible,
otherwise something else that doesn't occur in the substitution
expression.
* NEWS: Updated.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
To safely use a non-literal fist argument to 'test', you must
always prepend a literal non-'-' character, but often the second
operand is a constant that doesn't begin with a '-' already, so
always use 'test a = "$b"' instead of the noisy 'test "X$b" = Xa'.
* cf.mk (sc_prohibit_test_const_follws_var): New syntax-check
rule to ensure we don't reintroduce noisy test operands.
bootstrap, build-aux/extract-trace, build-aux/general.m4sh,
build-aux/ltmain.m4sh, configure.ac, doc/libtool.texi, libtoolize.m4sh,
m4/argz.m4, m4/libtool.m4, m4/ltdl.m4, tests/bindir.at, tests/defs.m4sh,
tests/demo-relink.test, tests/demo/configure.ac,
tests/depdemo-relink.test, tests/destdir.at, tests/duplicate_conv.at,
tests/fail.at, tests/getopt-m4sh.at, tests/help.at, tests/libtoolize.at,
tests/link-2.test, tests/link-order2.at, tests/lt_dlopenext.at,
tests/mdemo/configure.ac, tests/mdemo2/configure.ac,
tests/need_lib_prefix.at, tests/nocase.at, tests/pdemo/configure.ac,
tests/pic_flag.at, tests/search-path.at, tests/shlibpath.at,
tests/static.at, tests/sysroot.at, tests/tagtrace.test,
tests/testsuite.at, tests/with-pic.at: Swap operands to avoid useless
noise.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
Some modernization of the legacy testsuite.
* tests/sh.test: Remove.
* Makefile.am (COMMON_TESTS): Adjust.
* cfg.mk (sc_libtool_m4_cc_basename, sc_prohibit_bracket_as_test)
(sc_prohibit_nested_quotes, sc_prohibit_set_dummy_without_shift)
(sc_prohibit_set_minus_minus, sc_prohibit_test_binary_operators)
(sc_prohibit_test_dollar, sc_prohibit_test_minus_e)
(sc_prohibit_test_unary_operators, sc_prohibit_test_X)
(sc_prohibit_Xsed_withou_X, sc_require_function_nl_brace):
Functionally identical tests to what used to be performed by
sh.test, only with coverage of all files.
* bootstrap, build-aux/edit-readme-alpha,
build-aux/extract-trace, build-aux/getopt.m4sh,
build-aux/ltmain.m4sh, configure.ac, m4/libtool.m4, m4/ltdl.m4,
tests/bindir.at, tests/configure-iface.at, tests/cwrapper.at,
tests/darwin.at, tests/defs.m4sh, tests/demo-hardcode.test,
tests/dlloader-api.at, tests/exceptions.at,
tests/getopt-m4sh.at, tests/lalib-syntax.at, tests/link-2.test,
tests/link-order2.at, tests/loadlibrary.at,
tests/lt_dladvise.at, tests/lt_dlexit.at, tests/lt_dlopen_a.at,
tests/lt_dlopenext.at, tests/need_lib_prefix.at,
tests/nonrecursive.at, tests/recursive.at, tests/resident.at,
tests/standalone.at, tests/static.at, tests/stresstest.at,
tests/subproject.at, tests/sysroot.at, tests/tagtrace.test,
tests/testsuite.at: Fix violations of the new syntax checks.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
Contrary to popular belief, Bourne shell does not resplit RHS of
assignments after expansion, so if there are no unquoted shell
metacharacters or whitespace, the quotes are useless.
* cfg.mk (_sc_search_regexp_or_exclude): A variation of gnulib's
_sc_search_regexp that also allows individual exclusions at the
site of what would otherwise match by adding a comment.
(sc_useless_quotes_in_assignment): New syntax-check rule to
ensure we don't reintroduce useless quoted assignments.
* bootstrap, bootstrap.conf, build-aux/edit-readme-alpha,
build-aux/general.m4sh, build-aux/getopt.m4sh,
build-aux/ltmain.m4sh, build-aux/options-parser, configure.ac,
doc/libtool.texi, libtoolize.m4sh, m4/libtool.m4, m4/ltdl.m4,
m4/ltoptions.m4, tests/cwrapper.at, tests/defs.m4sh,
tests/lalib-syntax.at, tests/libtoolize.at,
tests/lt_dlopenext.at, tests/mdemo/configure.ac,
tests/mdemo2/configure.ac, tests/need_lib_prefix.at,
tests/no-executables.at, tests/quote.test, tests/suffix.test:
Remove spurious quotes.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* bootstrap (func_insert_sorted_if_absent): Don't forget the
double quotes, since we can't control the content of $file.
Reported by Steffano Lattarini.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* cfg.mk (local-checks-to-fix): Remove
sc_error_message_uppercase from list of disabled checks.
(exclude_file_name_regexp--sc_error_message_uppercase): Don't
match cvsu, which is not our file to edit.
* doc/libtool.texi: Use lowercase error message in example.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
In addition to moving the autoconf auxiliary script directory
into the place expected by GNU developers ($top_srcdir/build-aux)
we also simplify libtoolize somewhat by having libltdl use
whatever directory was specified by the parent project. This is
much more flexible, allows libltdl client projects to also use a
single canonical `$top_srcdir/build-aux' auxiliary script
directory, and maintains backward compatibility with existing
projects that wish to continue using $ltdl_dir/config.
* libltdl/config: Moved whole directory from here...
* build-aux: ...to here.
* libtoolize.m4sh (func_install_pkgaux_subproject): Remove.
(func_install_pkgaux_parent): Remove.
(func_install_pkgaux_files): Considerably simplified now that we
have only a single auxiliary directory to worry about.
(subproject_aux_dir): Remove.
* bootstrap.conf (libtool_readme_release_package_substitutions):
No need to substitute our old unusual aux_dir location into
README-release any more.
* cfg.mk (_build-aux): Now that we use the standard location for
this directory, no need to set this variable either.
* configure.ac (AC_INIT): git-version-gen has moved.
(AC_CONFIG_AUX_DIR): Adjust.
* Makefile.am (stamp-mk, auxexefiles, auxfiles)
(install-data-local): Use build-aux instead of config.
(libltdl/stamp-mk): Ditto.
* libltdl/configure.ac, tests/cdemo/configure.ac,
tests/demo/configure.ac, tests/depdemo/configure.ac,
tests/f77demo/configure.ac, tests/fcdemo/configure.ac,
tests/mdemo/configure.ac, tests/mdemo2/configure.ac,
tests/pdemo/configure.ac, tests/tagdemo/configure.ac
(AC_CONFIG_AUX_DIR): Ditto.
* tests/defs.m4sh (aux_dir): Ditto.
* tests/configure-iface.at, tests/getopt-m4sh.at,
tests/libtoolize.at, tests/subproject.at, tests/testsuite.at:
Ditto.
* Makefile.am (ltdl_ac_aux_dir): Extract at build-time...
* libtoolize.m4sh (require_ltdl_ac_aux_dir): ...so that
libtoolize can access it at runtime without requiring GNU M4 via
the extract-trace script.
(require_Makefile_am_filter): Use it to determine whether the
aux_dir declared in the current (parent) project configure is
compatible with the declarations in installed ltdl autotools
source files.
(require_configure_ac_filter): New function to perform similar
checks and rewrite configure.ac during installation if necessary.
* NEWS: Updated.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
It's much too easy to forget that the functions you hook into
the option parser need to return unconsumed options in the
variable `func_run_hooks_result'; better to follow the
convention used in the rest of bootstrap and return results in a
variable named after the function with `_result' appended.
* libltdl/config/options-parser (func_run_hooks): implement this
new API.
(Option parsing): Update the example in the header comment for
this section to reflect the changes.
* bootstrap (bootstrap_options_prep, bootstrap_parse_options)
(bootstrap_validate_options): Adjust.
* bootstrap.conf (libtool_options_prep, libtool_parse_options)
(libtool_validate_options): Ditto.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
After splitting bootstrap up, we also lost bootstraps usage
message, and were incorrectly displaying a partial extract-trace
message.
* bootstrap (usage): Set appropriately.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
Fix a bug where processed bootstrap options were not removed
from the queue, and eventually flagged as unknown in the
pluggable option parser driver.
* bootstrap (bootstrap_parse_options)
(bootstrap_validate_options): Follow the pluggable option parser
API correctly, and set func_run_hooks_result to the list of
remaining unconsumed options.
Reported by Roumen Petrov <bugtrack@roumenpetrov.info>
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* bootstrap: Bourne shell has no scoping, so be extremely
careful with namespaces, functions in `^func_' and `^require_';
private variables in `^_G_', and public variables all well
documented by comments.
* libltdl/config/extract-trace: New file, containing the minimum
of code previously in bootstrap plus a little glue to make the
GNU M4 based autotools tracing function (as opposed to the
kludgy sed extraction currently used everywhere else) a
standalone script that can be executed or sourced.
* libltdl/config/options-parser: New file, containing the
pluggable options parser code shared between the other two.
* bootstrap.conf: Adjust.
* Makefile.am (EXTRA_DIST): Be sure to distribute the new
extract-trace and options-parser scripts.
(install-data-local): And install them where libtoolize can find
them.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* bootstrap (func_require_autobuild_buildreq): Skip if autobuild.m4
is already present.
* bootstrap.conf (require_autobuild_bulidreq): No need to set this
specially any more.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* bootstrap (func_gnulib_tool_copy_file): When gnulib-tool is
not available, check that there is a copy of the file from a
previous run available before bailing out with a diagnostic.
(func_install_gnulib_non_module_files): Don't diagnose missing
files explicitly - func_gnulib_tool_copy_file takes care of it
now.
(func_require_checkout_only_file): In the diagnostic for
not being in a source-controlled tree, note that `--force' must
be used to rebootstrap.
(func_require_gnulib_files_already_present): Removed. All the
necessary checks are correctly performed in
func_gnulib_tool_copy_file withot resorting to heuristics.
(func_require_gnulib_mk): Don't continue to try to access
gnulib-cache.m4 after discovering we're running from a dist
tarball.
(func_require_dotgitmodules_parameters): Skip if .gitmodules
file is missing and git binary is not available.
* bootstrap.conf (checkout_only_file): Set to HACKING, which is
a non-distributed file.
(libtool_cleanup_empty_dirs): Don't print spurious errors when
trying to delete gnulib-tool droppings, in case gnulib-tool is
not available on this run.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* bootstrap: Replaced with gnulib script.
* bootstrap.conf: New file with Libtool specific bootstrap
configuration.
* Makefile.am (EXTRA_DIST): Add bootstrap.conf.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* configure.ac (AC_CONFIG_AUX_DIR, LT_CONFIG_LTDL_DIR)
(AC_CONFIG_MACRO_DIR): Append code to these functions to
capture and propagate their directory arguments to Makefile.
* Makefile.am (aux_dir, ltdl_dir, macro_dir): Remove declarations.
* bootstrap (my_sed_trace): Also capture LT_CONFIG_LTDL_DIR into
`$ltdl_dir'.
<Makefile>: Output the extracted values of `aux_dir', `ltdl_dir'
and `macro_dir' at the top of the quick'n'dirty bootstrap
Makefile.
* Makefile.am: Replace all uses of m4dir with macrodir to
match AC_CONFIG_MACRO_DIR.
* libltdl/config/libtoolize.m4sh: Replace all uses of macrodir
with macro_dir.
* tests/defs.m4sh, tests/sh.test: Likewise.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* Makefile.am, Makefile.maint: Replace all uses of auxdir
with aux_dir to match AC_CONFIG_AUX_DIR.
* libltdl/config/libtoolize.m4sh: Likewise.
* tests/defs.m4sh, tests/getopt-m4sh.at: Likewise.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* Makefile.am (bootstrap_files): List files that need to be
generated at bootstrap time before `./configure && make' can
work. It turns out that this is considerably fewer files than we
had thought necessary previously.
(bootstrap-deps-prep): Ensure minimum set of required substitution
variables are non-empty.
(bootstrap-deps): Depend on `bootstrap' files.
* bootstrap (Generate bootstrap dependencies): Now that
`Makefile.am' is entirely responsible for rebuilding files at
bootstrap time, we need only specify the new `bootstrap-deps'
target, and supply values for the substitutions checked by
`bootstrap-deps-prep'.
* configure.ac (AC_CONFIG_SRCDIR): `libtoolize.in' is not here yet
right after running `bootstrap'. So rely on the presence of
`libltdl/config/libtoolize.m4sh', which is always there.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* libltdl/config/announce-gen.m4sh: Removed. This script has
no apparent connection to libtool functionality, and mostly
duplicates the better maintained gnulib announce-gen script.
* libltdl/config/mailnotify.sh: Removed. This script was used
by only clcommit.m4sh and announce-gen.m4sh, both of which are
now removed too.
* Makefile.maint (announce-gen, libltdl/config/mailnotify):
Targets removed.
* bootstrap: Remove the mailnotify regeneration warning.
* HACKING (Release Procedure): Remove references to
announce-gen.
(Alpha release note template, Full release note template):
Reinstated from before announce-gen was introduced.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* clcommit.m4sh: Removed. This script was written to help keep
ChangeLog and commit messages in sync when committing to CVS,
and is an anachronism now that Libtool uses git.
* Makefile.maint (commit): Target removed.
* bootstrap: Don't generate commit.
* HACKING (Release Procedure): Adjusted.
Signed-off-by: Gary V. Vaughan <gary@gnu.org>
* bootstrap: When extracting PACKAGE and VERSION from AC_INIT
arguments, be sure to remove a 'GNU ' prefix and lowercase the
package name for PACKAGE. Also set PACKAGE_NAME and PACKAGE_URL
appropriately for GNU software. Pass these variables to the
make commands creating tests/package.m4 and other files.
* Makefile.am (edit): Fix substitution of PACKAGE_NAME and
PACKAGE_STRING.
* libltdl/config/announce-gen.m4sh: Use @PACKAGE@ not
@PACKAGE_STRING@.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* bootstrap: Update `./doc/notes.txt' last so missing `makeinfo'
does not cause a broken tree.
* THANKS: Update.
Report by Christian Rössel.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* Makefile.am (dist-hook): Bail out if shipped aclocal.m4 files
contain LT_INIT, AC_PROG_LIBTOOL, or AM_PROG_LIBTOOL macro
definitions. These can only come from bogus pull-ins from older
installed Libtool macro files.
* bootstrap: Likewise.
Report by Akim Demaille.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
use in non-recursive libltdl installations.
* bootstrap: Adjust.
* Makefile.am: include it.
(libltdl/Makefile.am): Adjust to build from the new
libltdl/Makefile.inc.
(SUBDIR_LIBOBJS): Renamed from this...
(LTDL_SUBDIR_LIBOBJS): ...to this.
* configure.ac: Adjust.
* doc/libtool.texi (Invoking libtoolize): Document the new modes
and libtoolize option to select them.
* libtoolize.m4sh: Parse new options, --nonrecursive, --recursive
and --subproject. Install the appropriate files with --ltdl
according to the selected mode.
(func_scan_files): If --subproject, --recursive or --nonrecursive
options were not given, use the value from LT_CONFIG_LTDL_DIR; if
a mode was given, and there is also an argument to
LT_CONFIG_LTDL_DIR, ensure they are the same.
* NEWS: Updated.
* bootstrap (SHELL): Set to $CONFIG_SHELL or /bin/sh.
Name `make' targets in portable fashion. Work around `rm'
warnings. Unconditionally create fake `libtoolize'.
Reported by Patrick Welche <prlw1@newn.cam.ac.uk>.
which lack AC_CONFIG_LIBOBJ_DIR support.
* bootstrap: Unless environment variable WORKING_LIBOBJS_SUPPORT
is set to true aka `:', symlink ..
* argz.c lt__dirent.c lt__strl.c: .. these from the copies in
libltdl.
* configure.ac (SUBDIR_LIBOBJS): Automake conditional, set if
bootstrap didn't make the extra copies of libobj sources in
top srcdir...
* Makefile.am: Add these to EXTRA_DIST if SUBDIR_OBJS is not set,
as well as the originals in libltdl/, in order to work when
bootstrapped both with old and newer Automake/Autoconf.
installation to the libtoolize master tree, so that libltdl is
useable even in the extreme case of when automake and autoconf are
not installed on the developers machine. Part of this change
requires some duplication of rules between Makefile.am (which
builds libltdl for this distribution) and libltdl/Makefile.am
(which is used by projects that libltoolize --ltdl --copy), so
libtool now really does use a single toplevel Makefile.am, and we
generate libltdl/Makefile.am from that:
* m4, config: Moved from here...
* libltdl/m4, libltdl/config: ...to here, to reduce the amount of
kludging needed in bootstrap for autoreconf to run.
* tests/cdemo/Makefile.am, tests/demo/Makefile.am,
tests/depdemo/Makefile.am, tests/f77demo/Makefile.am,
tests/fcdemo/Makefile.am, tests/mdemo/Makefile.am,
tests/mdemo2/Makefile.am, tests/pdemo/Makefile.am,
tests/tagdemo/Makefile.am (ACLOCAL_AMFLAGS): Adjust to
compensate.
* tests/cdemo/configure.ac, tests/demo/configure.ac,
tests/depdemo/configure.ac, tests/f77demo/configure.ac,
tests/fcdemo/configure.ac, tests/mdemo/configure.ac,
tests/mdemo2/configure.ac, tests/pdemo/configure.ac,
tests/tagdemo/configure.ac (AC_CONFIG_AUX_DIR): Ditto.
* libltdl/m4/ltdl.m4: Increment serial number.
(LTDL_INIT): Accept an optional directory argument to prefix each
of the LD_DLLOADERS locations. Default to empty for backwards
compatibility.
* Makefile.maint: Adjust to compensate.
* configure.ac (AC_CONFIG_AUX_DIR, AC_CONFIG_MACRO_DIR): Adjust.
(AC_CONFIG_LIBOBJ_DIR): Set here so that we can build LTLIBOBJS
from in a subdirectory from the amalgamated Makefile.am.
(AM_PROG_CC_C_O, AM_INIT_AUTOMAKE): Use subdir-objects.
(AC_CONFIG_FILES): Remove libltdl/Makefile.am.
* libltdl/Makefile.am: Removed from repository, and merged into
Makefile.am as we now generate it...
* Makefile.am (libltdl/Makefile.am): ...from here, by extracting
the merged rules, and tweaking paths to accomodate the difference
in directory from Makefile.am to libltdl/Makefile.am.
(nobase_dist_pkgdata_DATA): Automake generated installation rules
change timestamps of installed files, so renamed this...
(configauxfiles): ...to this...
(libtoolize): ...substitute it...
(install-data-local): ...install manually, preserving
timestamps...
(install-data-hook): ...and set execute bit as appropriate.
(uninstall-hook): Not forgetting to remove them at uninstall.
(libltdl/Makefile.in): New rule. Called from...
* bootstrap: ...here to avoid relying on config.status at
bootstrap time.
(auxdir, m4dir): Extract from configure.ac for ease of future
maintenance. Adjust all references.
(reconfdirs): Call autoreconf for libltdl too -- even
though we don't use it for the build, libltdl/configure and
friends are installed with `libtoolize --ltdl --copy'.
* libtoolize.m4sh: Add files from the installed config master tree
to libtoolize --ltdl project subdirectory.
Diagnose duplicated files when --ltdl is used in an autotooled
project.
It's perfectly fine to run `libtoolize --ltdl --copy' in a tree
that has no configure.ac or configure.in; we want libltdl to be
useful even to projects that don't use autotools themselves.
(libtoolize_flags): Removed. Changed all callers.
(func_massage_pkgconfig_files): New function.
* tests/standalone.at: New tests for using libltdl without
supporting configury in the parent project.
* tests/testsuite.at: Run them!
* NEWS: Updated.
files generated in doc and tests already lived in
$top_srcdir/Makefile.am, along with proxy rules in sub-Makefiles,
this changeset consolidates almost everything into the top
Makefile.am, simplifying things considerably:
* doc/Makefile.am, tests/Makefile.am: Removed. All rules moved...
* Makefile.am: ...to here and adjusted to run from $top_builddir.
Some reformatting to group rules and declarations by purpose, and
simplify with respect to removing much of the make recursion.
Add `doc/PLATFORMS', `doc/fdl.texi' and `doc/notes.texi'.
`defs.in' and `defs.m4sh' are in directory `tests'.
(uninstall-hook): Don't forget to uninstall libtoolize's libltdl
source tree.
* bootstrap: Simplified dirty makefile management, and bootstrap
file creation in light of having only a single pertinent
Makefile.
* configure.ac (CONF_SUBDIRS): Add tests/ prefix to each subdir to
compensate.
(DIST_MAKEFILE_LIST): Adjust.
(AC_CONFIG_FILES): Remove doc/Makefile and tests/Makefile.
* tests/defs.m4sh (LIBTOOL, scripts): Adjust paths.
* tests/cdemo-conf.test, tests/cdemo-exec.test,
tests/cdemo-make.test, tests/cdemo-shared.test,
tests/cdemo-static.test, tests/cdemo-undef.test,
tests/demo-conf.test, tests/demo-deplibs.test,
tests/demo-exec.test, tests/demo-hardcode.test,
tests/demo-inst.test, tests/demo-make.test,
tests/demo-nofast.test, tests/demo-noinst-link.test,
tests/demo-nopic.test, tests/demo-pic.test,
tests/demo-relink.test, tests/demo-shared.test,
tests/demo-static.test, tests/demo-unst.test,
tests/depdemo-conf.test, tests/depdemo-exec.test,
tests/depdemo-inst.test, tests/depdemo-make.test,
tests/depdemo-nofast.test, tests/depdemo-relink.test,
tests/depdemo-shared.test, tests/depdemo-static.test,
tests/depdemo-unst.test, tests/f77demo-conf.test,
tests/f77demo-exec.test, tests/f77demo-make.test,
tests/f77demo-shared.test, tests/f77demo-static.test,
tests/link-2.test, tests/link.test, tests/mdemo-conf.test,
tests/mdemo-dryrun.test, tests/mdemo-exec.test,
tests/mdemo-inst.test, tests/mdemo-make.test,
tests/mdemo-shared.test, tests/mdemo-static.test,
tests/mdemo-unst.test, tests/mdemo2-conf.test,
tests/mdemo2-exec.test, tests/mdemo2-make.test, tests/nomode.test,
tests/objectlist.test, tests/pdemo-conf.test,
tests/pdemo-exec.test, tests/pdemo-inst.test,
tests/pdemo-make.test, tests/quote.test, tests/sh.test,
tests/suffix.test, tests/tagdemo-conf.test,
tests/tagdemo-exec.test, tests/tagdemo-make.test,
tests/tagdemo-shared.test, tests/tagdemo-static.test,
tests/tagdemo-undef.test, tests/tagtrace.test (func_cd,
func_require): Adjust paths..
* tests/Makefile.am: ...to here.
* bootstrap: Adjust. Also, create temporary Makefile from
tests/Makefile.am so that bootstrap can create the Autotest
testsuite.
subdir-objects builds. This marks the beginning of a move to an
Autotest driven test framework, which will eventually allow us to
trim away many of the generated files in the current test demo
subdirectories:
* configure.ac (AC_CONFIG_TESTDIR): Re-enable commented out
Autotest macros.
(AUTOTEST, M4SH): Use --language long hand.
* bootstrap: Generate tests/testsuite, and by implication
tests/package.m4.
* Makefile.am (edit): Add substitutions needed to generate
tests/package.m4 from bootstrap.
(check-recursive): Add tests/testsuite.
(TESTSUITE): The new Autotest testsuite target.
(TESTSUITE_AT): The Autotest sources.
(EXTRA_DIST): Distribute the generated testsuite and sources.
(tests/package.m4): Use $(edit) to propagate package metadata to
the new tests.
(tests/testsuite): Build the testsuite.
(tests/atconfig): How to regenerate the file.
(check-local): Hook Autotest into `make check'.
(installcheck-local): Run the testsuite on the installed tree.
(clean-local): Tidy our file droppings.
* tests/Makefile.am: Remove bitrotted code from Autotest
experiments in Autoconf 2.52 era. Updated the rest and moved into
Makefile.am.
* tests/testsuite.at: New container for Autotest test groups.
* tests/am-subdir.at: New test group for compatibility with
Automake's subdir-objects builds. Currently holds two tests, one
for a C project and another similar project in C++.
* TODO: Add an entry to remind us that these new tests expose a
bug in libtool.
* NEWS: Updated.
gary@gnu.org--2004/cvs-utils--tla--1.0:
* commit, config/mailnotify: Removed. Now built from...
* clcommit.m4sh, config/mailnotify.m4sh: ...these new sources.
* Makefile.maint (commit, config/mailnotify): How to build them.
* bootstrap: If we have a checked out tree (i.e. clcommit.m4sh
is present), then build them.
with $lt_ECHO, or we always get a libtool with ECHO=echo, rather
than testing for a mechanism that quotes properly.
* NEWS: Updated.
* config/ltmain.m4sh: Need to include getopt.m4sh earlier so that
progpath is set before it is called to --no-reexec.
* NEWS: Updated.
Without this change, the distributed libtool tarball has a
dependency on autom4te. There was some inconsistency in the
filenames: now we have foo.m4sh -> m4sh -> foo.in -> configure
-> foo[.sh]. Bootstrap runs the m4sh steps and the resulting .in
files are distributed:
* tests/Makefile.am (EXTRA_DIST): Distribute defs.m4sh.
* Makefile.am (EXTRA_DIST): Distribute libtoolize.m4sh.
(libtoolize.in, libtoolize): Split into bootstrap and runtime
stages.
($(top_srcdir)/tests/defs.in, $(top_srcdir)/tests/defs): Ditto.
($(top_srcdir)/config/ltmain.sh): Swap ltmain.m4sh and ltmain.in
names.
* bootstrap: Make libtoolize.in and tests/defs.in.
* NEWS: Updated.
* config/general.m4sh, config/getopt.m4sh: New files with factored
out functionality from...
* config/ltmain.in, libtoolize.in: ...here. m4_include the shared
code, and call AS_SHELL_SANITIZE. Also quote all `[' and `]' to
survive m4 run.
(func_serial): No need to double up m4sh quotes after a `#'.
(func_check_macros): Escape `dnl' to stop m4sh interpreting it as
a macro.
* tests/defs.in: New file expanded into tests/defs by autom4te.
* m4/libtool.m4 (_LT_DECL_EGREP): Also require fgrep for the tests
that use it.
* Makefile.am ($(top_srcdir)/config/ltmain.sh): Now built with
M4SH.
(libtoolize): Ditto.
* bootstrap: Set M4SH for call to make.
* HACKING: No need to sync to AS_SHELL_SANITIZE by hand any more.
the many and varied m4 symbols accumulated by libtool over the
years, considering also that modern autoconf can detect unexpanded
macros even without AC in the macro name:
* bootstrap: Remove libltdl/config.h from previous releases.
* m4/libtool.m4, m4/ltdl.m4, doc/libtool.texi: Basically, run a
giant sed transformation like this:
s,AC_LIB_LTDL,LTDL_INIT,g
s,AC_LIBLTDL_CONVENIENCE,LTDL_CONVENIENCE,g
s,AC_LIBLTDL_INSTALLABLE,LTDL_INSTALLABLE,g
s,AC_WITH_LTDL,LT_WITH_LTDL,g
s,AC_LTDL_ENABLE_INSTALL,_LT_ENABLE_INSTALL,g
s,AC_DEPLIBS_CHECK_METHOD,_LT_CHECK_MAGIC_METHOD,g
s,AC_LIBTOOL_OBJDIR,_LT_CHECK_OBJDIR,g
s,AC_LTDL_OBJDIR,_LT_CHECK_OBJDIR,g
s,AC_LTDL_DLPREOPEN,_LT_CHECK_DLPREOPEN,g
s,AC_LIBTOOL_SYS_MAX_CMD_LEN,LT_CMD_MAX_LEN,g
s,AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE,_LT_CMD_GLOBAL_SYMBOLS,g
s,AC_LIBTOOL_SYS_OLD_ARCHIVE,_LT_CMD_OLD_ARCHIVE,g
s,AC_PROG_LD_RELOAD_FLAG,_LT_CMD_RELOAD,g
s,AC_LIBTOOL_SYS_LIB_STRIP,_LT_CMD_STRIPLIB,g
s,AC_CHECK_LIBM,LT_LIB_M,g
s,AC_LTDL_DLLIB,LT_LIB_DLLOAD,g
s,AC_LIBTOOL_COMPILER_OPTION,_LT_COMPILER_OPTION,g
s,AC_LIBTOOL_PROG_CC_C_O,_LT_COMPILER_C_O,g
s,AC_LIBTOOL_PROG_COMPILER_NO_RTTI,_LT_COMPILER_NO_RTTI,g
s,AC_LIBTOOL_PROG_COMPILER_PIC,_LT_COMPILER_PIC,g
s,AC_LIBTOOL_SYS_HARD_LINK_LOCKS,_LT_COMPILER_FILE_LOCKS,g
s,AC_LTDL_DLSYM_USCORE,LT_FUNC_DLSYM_USCORE,g
s,AC_LIBTOOL_LINKER_OPTION,_LT_LINKER_OPTION,g
s,AC_LIBTOOL_PROG_LD_SHLIBS,_LT_LINKER_SHLIBS,g
s,AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH,_LT_LINKER_HARDCODE_LIBPATH,g
s,AC_PATH_MAGIC,_LT_PATH_MAGIC,g
s,AC_PATH_TOOL_PREFIX,_LT_PATH_TOOL_PREFIX,g
s,AC_PROG_LD,LT_PATH_LD,g
s,AC_PROG_LD_GNU,_LT_PATH_LD_GNU,g
s,AC_PROG_NM,LT_PATH_NM,g
s,AC_LTDL_SYS_DLOPEN_DEPLIBS,LT_SYS_DLOPEN_DEPLIBS,g
s,AC_LIBTOOL_DLOPEN_SELF,LT_SYS_DLOPEN_SELF,g
s,AC_LIBTOOL_POSTDEP_PREDEP,_LT_SYS_HIDDEN_LIBDEPS,g
s,AC_LTDL_SYSSEARCHPATH,LT_SYS_DLSEARCH_PATH,g
s,AC_LTDL_SHLIBEXT,LT_SYS_MODULE_EXT,g
s,AC_LTDL_SHLIBPATH,LT_SYS_MODULE_PATH,g
s,AC_LTDL_SYMBOL_USCORE,LT_SYS_SYMBOL_USCORE,g
s,AC_LIBTOOL_SYS_DYNAMIC_LINKER,_LT_SYS_DYNAMIC_LINKER,g
s,_LT_AC_TAGVAR,_LT_TAGVAR,g
s,_LT_AC_SYS_COMPILER,_LT_TAG_COMPILER,g
s,_LT_AC_PROG_ECHO_BACKSLASH,_LT_PROG_ECHO_BACKSLASH,g
s,_LT_AC_SYS_LIBPATH_AIX,_LT_SYS_MODULE_PATH_AIX,g
s,_LT_AC_SHELL_INIT,_LT_SHELL_INIT,g
s,_LT_AC_LOCK,_LT_ENABLE_LOCK,g
s,_LT_AC_CHECK_DLFCN,_LT_HEADER_DLFCN,g
s,_LT_AC_TRY_DLOPEN_SELF,_LT_TRY_DLOPEN_SELF,g
s,LT_AC_PROG_EGREP,_LT_DECL_EGREP,g
s,LT_AC_PROG_SED,_LT_DECL_SED,g
* doc/libtool.texi (Autoconf macros): Document exported macros.
* libtoolize.in: Compare ltdl.m4 serial numbers for LTDL_INIT
instead of newly obsoleted AC_LIB_LTDL.
(func_scan_files): Also set seen_ltdl for LTDL_INIT and
LT_WITH_LTDL.
* libltdl/ltdl.c (lt_dlforeachfile): LT_SYS_LIBSEARCH_PATH is not
an environment variable, it is an actual path.
Reported by Noah Mish <noah@cs.caltech.edu>
required to write this changeset -- especially that ltmain.sh is
the same on any machine for a given release, which I hadn't
noticed for some bizarre reason: It turns out that generating
distributed files from configure causes no end of hassle, as
evidenced by the many patches I've generated over the last few
days to try and get the dist and distcheck make rules to work.
Instead of all that hair, we now simply generate our distributed
files (now including ltmain.sh) with make rules -- and since
automake creates make variables for all AC_SUBSTs, that is really
easy. The code looks a lot more like automake and autoconf
Makefile.ams now, and doesn't have all the rough edges the earlier
hacky solution suffered from. We still generate libtool from
config.status, but that is not a distributed file, and doesn't
break the golden rule. Besides, there is way more going on there
than a bunch of substitutions:
* Makefile.am (edit): New common sed substitutions for files now
generated by make instead of config.status.
(CLEANFILES): Clean new tmp files.
(EXTRA_DIST): Add ltmain.sh.
(vcl-tmp): Reinstated.
(m4/ltversion.m4, config/ltmain.sh): New rules. Generate from
here instead of config.status.
(libtoolize): Ditto.
(libtool): Call config.status to regenerate if necessary.
(dist-hook): Removed.
* config/ltmain.in: Moved here from top_srcdir.
* README-alpha: Update instructions to check AS_SHELL_SANITIZE is
up to date.
* bootstrap: Rewritten. Generate m4/ltversion.m4 and
config/ltmain.sh because configure depends on them.
* configure.ac (AC_CONFIG_SRCDIR): Use libtoolize.in now that
ltmain.in has moved.
(AC_CONFIG_FILES): Don't generate distributed files,
config/ltmain.sh and libtoolize from config.status. We have make
rules to do that now.
the generated m4/ltversion.m4. Except for CVS revisions:
* ltmain.in (package_revision): Don't try to deduce it from
TIMESTAMP, since that is empty for release versions; simply
substitute it...
* configure.ac (package_revision): ...from here, having
precalculated it before resetting TIMESTAMP for release versions.
* bootstrap: Force regeneration of m4/ltversion.m4, but retain
timestamps if there is no change to the content.
* m4/lt~obsolete.m4, tests/cdemo/configure.ac: Arghh. cvsapply just
went crazy and committed a bunch of stuff that shouldn't have been
in the last changeset. The patch backs it all out.
are being used.
* Makefile.am (m4/ltversion.m4): New rule to create it from
m4/ltversion.in.
(nodist_pkgmacro_DATA): Add m4/ltversion.m4.
(EXTRA_DIST): Add m4/ltversion.in.
* m4/libtool.m4 (AC_LIBTOOL_SETUP): AC_REQUIRE LTVERSION_VERSION
from ltversion.m4.
* bootstrap: Call the Makefile.am to create an initial
m4/ltversion.m4.
* ltmain.in: Diagnose version mismatches of various flavours.
* TODO: Remove mismatch item.
* NEWS: Updated.
truthfully, and the difference between bootstrap and user
dependencies.
* configure.ac (AM_INIT_AUTOMAKE): List AUTOMAKE_OPTIONS here.
* Makefile.am, doc/Makefile.am, tests/Makefile.am
(AUTOMAKE_OPTIONS): Removed from here.
comment incase they get left around.
(LIBTOOLIZE): Use a dummy script to prevent the installed
`libtoolize' from trashing the distributed libtool.m4,
config.guess and config.sub.
tests/defs, and move the various demo directories out of
$top_srcdir, and into tests too. The refactoring showed up a
number of inconsistencies and latent bugs, as well as fixing (I
think!!) the long-standing annoyance with some of the tests giving
spurious failures intermittently. While I was here, emacs kindly
removed a lot of bogus whitespace and added copyright notices for
us:
* cdemo, demo, depdemo, f77demo, mdemo, mdemo2, pdemo, tagdemo:
Moved from here...
* tests/cdemo, tests/demo, tests/depdemo, tests/f77demo,
tests/mdemo, tests/mdemo2, tests/pdemo, tests/tagdemo: ...to
here.
* tests/defs: Factor much common functionality from the test
scripts into shell functions. Added a copyright notice.
* tests/assign.test, tests/cdemo-conf.test, tests/cdemo-exec.test,
tests/cdemo-make.test, tests/cdemo-shared.test,
tests/cdemo-static.test, tests/demo-conf.test,
tests/demo-deplibs.test, tests/demo-exec.test,
tests/demo-inst.test, tests/demo-make.test,
tests/demo-nofast.test, tests/demo-nopic.test,
tests/demo-pic.test, tests/demo-shared.test,
tests/demo-static.test, tests/demo-unst.test,
tests/depdemo-conf.test, tests/depdemo-exec.test,
tests/depdemo-inst.test, tests/depdemo-make.test,
tests/depdemo-nofast.test, tests/depdemo-shared.test,
tests/depdemo-static.test, tests/depdemo-unst.test,
tests/f77demo-conf.test, tests/f77demo-exec.test,
tests/f77demo-make.test, tests/f77demo-shared.test,
tests/f77demo-static.test, tests/link-2.test, tests/link.test,
tests/mdemo-conf.test, tests/mdemo-exec.test,
tests/mdemo-inst.test, tests/mdemo-make.test,
tests/mdemo-shared.test, tests/mdemo-static.test,
tests/mdemo-unst.test, tests/mdemo2-conf.test,
tests/mdemo2-exec.test, tests/mdemo2-make.test, tests/nomode.test,
tests/pdemo-conf.test, tests/pdemo-exec.test,
tests/pdemo-inst.test, tests/pdemo-make.test,
tests/pdemo-unst.test, tests/quote.test, tests/sh.test,
tests/suffix.test, tests/tagdemo-conf.test,
tests/tagdemo-exec.test, tests/tagdemo-make.test,
tests/tagdemo-shared.test, tests/tagdemo-static.test: Refactored
to use new functions in tests/defs. Added a copyright notice.
* tests/hardcode.test, noinst-link.test,
tests/relink.test, tests/relink.test,
tests/mdryrun.test: Ditto. Moved from here...
* tests/demo-hardcode.test, demo-noinst-link.test,
tests/demo-relink.test, tests/depdemo-relink.test,
tests/mdemo-dryrun.test: ...to here respectively.
* Makefile.am: Added a copyright notice.
* tests/sh.test: Check libtoolize.in for non-portabilities too.
* libtoolize.in: Fix non-portabilities found by tests/sh.test.
* config.guess, config.sub, mkstamp: Moved from here...
* config/config.guess, config/config.sub, config/mkstamp: ...to
here, respectively.
* libtool.m4, ltdl.m4: Moved from here...
* m4/libtool.m4, m4/ltdl.m4: ...to here, respectively.
* configure.ac: Removed various acinclude.m4 hackery, as these
files are no longer needed with automake 1.8.
* Makefile.am: Removed various acinclude.m4 hackery, as these
files are no longer needed with automake 1.8.
(AUTOMAKE_OPTIONS): Require CVS automake.
(CONF_SUBDIRS, CFLAGS, CPPFLAGS, LDFLAGS, LIBS, FFLAGS, FLIBS):
Automake now makes a Make variable from every AC_SUBST, so these
are NOP.
(aclocal_macros): These files are now in their own m4 subdir.
Changed all clients.
(EXTRA_DIST): mkstamp has moved to the new config subdir. Changed
all clients.
(pkgdata_SCRIPTS): Ditto wrt config.guess and config.sub.
(pkgdata_DATA): Ditto wrt ltmain.sh.
* f77demo/configure.ac, libltdl/configure.ac (AM_CONFIG_HEADER):
Is deprecated in favour of AC_CONFIG_HEADERS. Updated to the
latter.
* Makefile.am, cdemo/Makefile.am, demo/Makefile.am,
depdemo/Makefile.am, f77demo/Makefile.am, mdemo/Makefile.am,
mdemo2/Makefile.am, pdemo/Makefile.am, tagdemo/Makefile.am
(EXTRA_DIST): Remove acinclude.m4.
(ACLOCAL_AMFLAGS): Search new `m4' macro directory.
* configure.ac, cdemo/configure.ac, demo/configure.ac,
depdemo/configure.ac, f77demo/configure.ac, mdemo/configure.ac,
mdemo2/configure.ac, pdemo/configure.ac, tagdemo/configure.ac
(AC_CONFIG_AUX_DIR): Declare that config helper scripts are now
kept in the new config subdir.
* libltdl/configure.ac (AC_CONFIG_AUX_DIR): Removed. Defaults to
`.' anyway.
auxilary files in the libltdl directory.
* Makefile.am: Add to the ltmain.sh rule to copy it into the
libltdl subdirectory.
* bootstrap: Explicitly handle ltmain.sh in libltdl, and pass
--copy to automake.
Fortran support tag.
(AC_LIBTOOL_PROG_CC_C_O, _LT_AC_TAGCONFIG): Support F77 tag.
(AC_LIBTOOL_F77, _LT_AC_LANG_F77, AC_LIBTOOL_LANG_F77_CONFIG):
New macros for F77 tag Fortran support.
* configure.ac: Add support for creating the new F77 tag.
* bootstrap: Add f77demo directory to the list to be processed.
* Makefile.am: Add support for FFLAGS and FLIBS.
* tests/Makefile.am: Add new Fortran tests.
* tests/f77demo-*.test: New files.
* f77demo/configure.ac, f77demo/cprogram.c, f77demo/fooc.c
* f77demo/foof.f, f77demo/foo.h, f77demo/fprogram.f
* f77demo/Makefile.am, f77demo/README: New files.
multi-language-branch.
* configure.in: Added pdemo and tagdemo to CONF_SUBDIRS
and merged references to CXX and GCJ from multi-language-branch.
*pdemo: Added test directory from multi-language-branch.
*tagdemo: Added test directory from multi-language-branch.
*tests/Makefile.am: Merged additional tests from
multi-language-branch.
*tests/pdemo-*.test: ditto.
*tests/tagdemo-*.test: ditto.
necessary.
* Makefile.am (libtool): Reworked rule for regeneration of libtool,
now that it is built entirely withing config.status.
(libtoolize): Tidied for orthogonality with the other generation
rules.
(ltconfig): This is now generated by AC_PROG_LIBTOOL, called from
make by running config.status --recheck.
(ltmain.sh): Moved primary generation of this file into here...
* configure.in (AC_OUTPUT): ...instead of here.
* libtool.m4 (AC_OUTPUT_COMMANDS): Write the config to ltconfig
where it can be reused, rather than directly to libtool.
* demo/configure.in: libtool is no longer present immediately
after AC_LIBTOOL_M4 has completed, so the tests now grep through
ltconfig instead -- which *will* be present.
doesn't exist!!
* bootstrap: Fake an ltconfig incase the installed automake
calls an installed libtoolize (as part of its --add-missing
process) which thinks ltconfig should be there.
from ltconfig, so that ltmain.sh and then libtool are
generated at configure time.
* Makefile.am: Don't generate ltmain.sh or ltconfig anymore.
* bootstrap: ltconfig is no more!
* configure.in: Call AC_PROG_LIBTOOL directly.
(AC_OUTPUT): Generate tmain.sh.
* libtool.m4: Don't build an argument list for ltconfig.
(_LT_AC_LTCONFIG_HACK): Refactoring of the former contents of
ltconfig.in to take advantage of the m4 macros from autoconf.
* ltmain.in: Don't do a version check against ltconfig.
* tests/assign.test: Remove reference to ltconfig.
* tests/hardcode.test: ditto.
* tests/sh.test: ditto.
* doc/libtool.texi (using libltdl): document new lt_dlinfo struct,
replace NULL with @code{NULL}, document lt_dlsetdata(),
lt_dlgetdata() and lt_dlgetinfo()
* libltdl/Makefile.am: increment interface version number
* libltdl/configure.in: set version number to 1.1
* libltdl/ltdl.c: make some variables public by moving them
to the info struct, add support for application specific data
within module handles, new lt_dlsetdata(), lt_dlgetdata() and
lt_dlgetinfo() functions,
fix memory leaks, minor cleanups
* libltdl/ltdl.h: ditto
* mdemo/main.c: demonstrate use of lt_dlgetinfo,
improved handling of errors
* ltconfig.in: set hardcode_into_libs = yes for GNU/Hurd, Linux
and Solaris, only hardcode *all* run-paths if hardcode_into_libs
is set to 'all', otherwise hardcode only user-specified rpaths
into libraries
* ltmain.in: minor cleanups, we don't need to add user-specified
rpaths to compile_rpath, finalize_rpath is sufficient
* ltconfig.in: transform linux* -> *linux-gnu* _after_ host_os has
been set! (reported by Bruno Haible <haible@ilog.fr>)
* configure.in: AC_SUBST reload_flag, deplibs_check_method
and file_magic_cmd
* README: use 'libtool --version' instead of 'ltconfig --version'
(suggested by Francios Pinard <pinard@iro.umontreal.ca>
* libltdl/ltdl.m4: that no longer exists.
* configure.in (ACINCLUDE_M4_LIST): Removed libltdl/acinclude.m4.
* Makefile.am (aclocal_macros): Added ltdl.m4.
(libltdl/acinclude.m4): Concatenate libtool.m4 and ltdl.m4.
* bootstrap: Likewise.
* libltdl/Makefile.am (ACLOCAL): Remove the definition. Relying
upon -I may lead to duplicates.
* doc/libtool.texi: Suggest appending ltdl.m4 to acinclude.m4.
* libtoolize.in: Check AC_LIB_LTDL version number in aclocal.m4.
using --with-auxdir (idea by Howard Chu <hyc@highlandsun.com>)
* ltmain.in: don't remove multiple occurences from dependency_libs
of a library, otherwise many dependencies would get lost
* bootstrap: use "aclocal -I ." instead of adding the contents
of ltdl.m4 to acinclude.m4
* TODO: Note some cleanups that are now needed.
* libltdl/configure.in: Use the new macroised tests.
* libltdl/ltdl.m4: New file, macroised tests formerly in
libltdl/configure.in.
Reported by Stephan Kulow <coolo@kde.org>.
* cdemo/main.c: "Welcome _to_ ..."
* mdemo/main.c: ditto
* libltdl/configure.in: support multiple dlopening mechanisms
at once
* libltdl/ltdl.c: prefix system dependent functions with "sys_"
to avoid symbol conflicts (libdld didn't work)
* libtool.m4 (AC_LIBLTDL_*): set INCLTDL to the path of ltdl.h
* ltconfig.in: check for dlopen with -ldl first
