Justin Lecher [Mon, 14 Mar 2011 07:40:50 +0000 (08:40 +0100)]
Don't filter OPENMP flags (-openmp & -fopenmp) from linker lines.
If -fopenmp if passed to gcc during linking, it will take care to add all
necessary libs to link correctly for openmp support. Currently libtool filters
those flags, similar as it was the case with the threading flags. This change
handles the situation for the openmp support similar as before the thread
support was fixed.
Peter O'Gorman [Fri, 4 Mar 2011 20:35:14 +0000 (14:35 -0600)]
On Mac OS X try .dylib as well as .so with lt_dlopenext
* libltdl/m4/ltdl.m4: Define extra extension if module extension
differs from shared lib extension.
* libltdl/ltdl.c: Use it.
* tests/darwin.at: Test it.
* NEWS: Announce it.
Reported by Hans Aberg, Michael Ellis, and others.
Peter O'Gorman [Thu, 27 Jan 2011 23:13:10 +0000 (17:13 -0600)]
Don't loop through wrapper script arguments unnecessarily.
* libltdl/m4/ltmain.m4sh: Check that argv contains " --lt-"
before looping to remove wrapper script targetted arguments.
Performance regression reported by Dan McGee.
Gerald Pfeifer [Thu, 20 Jan 2011 18:35:14 +0000 (19:35 +0100)]
Remove support for FreeBSD 1.x.
* libltdl/m4/libtool.m4 (_LT_LINKER_SHLIBS)
(_LT_SYS_DYNAMIC_LINKER): Remove handling of freebsd1* which
soon would incorrectly match FreeBSD 10.0.
* NEWS, THANKS: Update.
Peter O'Gorman [Wed, 19 Jan 2011 18:53:32 +0000 (12:53 -0600)]
Don't let verbose linker messages influence test results.
* libltdl/m4/libtool.m4 (_LT_REQUIRED_DARWIN_CHECKS): Ignore
stderr during tests for -flag unless it contains "flag".
* tests/darwin.at: Add test.
Reported by Jeremy Huddleston and also by David Fang.
Ralf Wildenhues [Sun, 9 Jan 2011 16:55:17 +0000 (17:55 +0100)]
Fix $wl setting for Solaris Studio 12.2 f90 on GNU/Linux.
* libltdl/m4/libtool.m4 (_LT_COMPILER_PIC) [linux]
<lt_prog_compiler_wl>: Set to '-Qoption ld ' if we
detect Sun Fortran version 8.4 or newer.
Report by Terry Dontje.
Peter Rosin [Fri, 7 Jan 2011 10:49:10 +0000 (11:49 +0100)]
Convert file name to toolchain format when blessing archives.
* libltdl/config/ltmain.m4sh (func_mode_install): When executing
old_postinstall_cmds and old_archive_cmds, convert $oldlib to a
format appropriate for the tool and provide that in $tool_oldlib.
Also use $tool_oldlib when stripping old libraries.
* libltdl/m4/libtool.m4 (_LT_CMD_OLD_ARCHIVE): Use $tool_oldlib
as argument to $RANLIB.
* THANKS: Update.
Report by Dan McMahill.
Brice De Bruyne [Mon, 20 Dec 2010 03:16:12 +0000 (04:16 +0100)]
Also turn off -fuse-linker-plugin for postdep_objects computation.
* libltdl/m4/libtool.m4 (_LT_SYS_HIDDEN_LIBDEPS): Add
-fno-use-linker-plugin to temporary compile flags if necessary,
to fix C++ postdep_objects setting with -flto
-fuse-linker-plugin.
* NEWS, THANKS: Update.
Ralf Wildenhues [Fri, 17 Dec 2010 19:30:53 +0000 (20:30 +0100)]
Fix PIC flags with mpif77 using ifort on GNU/Linux.
* libltdl/m4/libtool.m4 (_LT_COMPILER_PIC) [linux]:
Match Intel compiler also using $CC -V output, to avoid false
negatives with compiler drivers like mpif77.
Report by Christian Rössel.
Ralf Wildenhues [Thu, 16 Dec 2010 20:41:27 +0000 (21:41 +0100)]
Fix PIC flags with MPI wrappers using Portland on GNU/Linux.
* libltdl/m4/libtool.m4 (_LT_COMPILER_PIC) [linux]:
Match Portland compilers also using $CC -V output, to avoid
false negatives with MPI compiler drivers.
Report by Christian Rössel.
Ralf Wildenhues [Mon, 6 Dec 2010 03:31:14 +0000 (04:31 +0100)]
Fix nvcc PIC setting on darwin.
* libltdl/m4/libtool.m4 (_LT_COMPILER_PIC)
<lt_prog_compiler_pic>: Prepend -Xcompiler to nonempty variable
setting rather than hard-coding -Xcompiler -fPIC, for darwin.
* NEWS, THANKS: Update.
Report by Paweł Daniluk.
Ralf Wildenhues [Mon, 15 Nov 2010 22:13:33 +0000 (23:13 +0100)]
Eliminate hardcode_libdir_flag_spec_ld tag variable.
* libltdl/config/ltmain.m4sh (func_mode_link): Set $wl to empty
if $LD is used for creating shared libraries. Do not use
hardcode_libdir_flag_spec_ld any more.
* libltdl/m4/libtool.m4 (_LT_LINKER_SHLIBS, _LT_LANG_CXX_CONFIG)
(_LT_LANG_F77_CONFIG, _LT_LANG_FC_CONFIG, _LT_SYS_DYNAMIC_LINKER)
<hardcode_libdir_flag_spec_ld>: Remove all instances of the tag
variable.
(_LT_LINKER_SHLIBS) [linux, xlf] <hardcode_libdir_flag_spec>:
Set variable, including ${wl}. Fixes hardcoding in programs
created by XL Fortran on GNU/Linux.
* NEWS, THANKS: Update.
Report by Paul H. Hargrove.
Ollie Wild [Wed, 10 Nov 2010 20:06:50 +0000 (21:06 +0100)]
Modify --with-pic to support per-package configurations.
* libltdl/m4/libtool.m4: Modify --with-pic to accept a list of
package names. Modelled off --enable-shared.
* tests/with-pic.at: New test.
* Makefile.am (TESTSUITE_AT): Add tests/with-pic.at.
* doc/libtool.texi (LT_INIT): Enhance documentation of
--with-pic configure flag.
* NEWS (New features): Mention that --with-pic now accepts a
comma-separated list of package names.
Ralf Wildenhues [Wed, 10 Nov 2010 18:28:11 +0000 (19:28 +0100)]
Fix cwrapper test failure with --disable-static.
* tests/cwrapper.at (cwrapper and installed shared libraries):
Compile program source without libtool, so we can be sure a
non-PIC object will be created.
Ralf Wildenhues [Wed, 27 Oct 2010 18:13:28 +0000 (20:13 +0200)]
docs: mention shell requirement for libtool script.
* doc/libtool.texi (Invoking libtool): Document that the shell
used to invoke libtool needs to be the same used to configure
it.
* THANKS: Update.
Report by Markus Duft.
Ralf Wildenhues [Fri, 15 Oct 2010 03:54:45 +0000 (05:54 +0200)]
Merge branch 'libtool-next' (early part)
* 'libtool-next' (early part):
libtool: remove redundant unsubstituted shell var defaults.
maint: don't leak developer GREP, SED etc into distribution file.
maint: rearrange Makefile.am in preparation for a follow-up patch.
Ralf Wildenhues [Thu, 14 Oct 2010 19:27:09 +0000 (21:27 +0200)]
Fix linking from only convenience archives with gfortran on Darwin.
* libltdl/m4/libtool.m4 (_LT_DARWIN_LINKER_FEATURES): Update
macro comment header.
[darwin, F77, FC] <compiler_needs_object>: Set to yes if
whole_archive_flag_spec is nonempty. Fixes convenience.at test
suite failures with gfortran 4.2 on Darwin.
* THANKS: Update.
Report by Paul Laight.
Ralf Wildenhues [Thu, 14 Oct 2010 19:48:17 +0000 (21:48 +0200)]
Fix bindir check logic, and relax non-bindir case for AIX.
* tests/bindir.at (bindir install tests): Rewrite checks for
place of the installed shared library in two separate tests,
depending on whether -bindir is supposed to have an effect or
not. In the positive case, make the test stricter so that we
reject libraries in $libdir. In the negative case, do not
require a major version number in the $libdir file name, for AIX
without runtimelinking. If tmpdir creation fails, skip the
test. Use fewer bindir directory names for testing, to speed
up the test. Also mention MSVC style DLL name in comment.
Report by Peter Rosin.
Simon Josefsson [Sat, 9 Oct 2010 10:26:16 +0000 (12:26 +0200)]
docs: improve description of -no-undefined.
* doc/libtool.texi (Link mode): Fix -no-undefined description.
(Inter-library dependencies): Use Windows not AIX as example
system. Clarify need for symbol resolution at library creation
time.
Peter Rosin [Mon, 4 Oct 2010 19:16:26 +0000 (21:16 +0200)]
cwrapper: split long lines when dumping the wrapper script.
* libltdl/config/ltmain.m4sh (func_emit_cwrapperexe_src): If
the wrapper script contains long lines, split them for
readability and to conform with C standards.
* tests/cwrapper.at (cwrapper string length): New test, making
sure we don't regress.
Peter Rosin [Mon, 4 Oct 2010 14:02:39 +0000 (16:02 +0200)]
msvc: handle symbols from different files independently.
* libltdl/m4/libtool.m4 (_LT_CMD_GLOBAL_SYMBOLS)
<dumpbin, lt_cv_sys_global_symbol_pipe>: Make all sections
viable for symbol extraction again when the symbols from a new
file starts. Fixes tests/tagdemo-make.test for MSVC 10.
* tests/dumpbin-symbols.at: New test, making sure we don't
regress.
* Makefile.am (TESTSUITE_AT): Update.
Peter Rosin [Mon, 27 Sep 2010 08:06:44 +0000 (10:06 +0200)]
tests: clean up importing and exporting on w32.
Makes the touched tests pass for MSVC when DLLs are built.
* tests/demo/Makefile.am, tests/pdemo/Makefile.am: Define
BUILDING_LIBHELLO when building libhello.la.
* tests/demo/foo.h, tests/pdemo/foo.h (nothing) <MSVC>: Export
variable when building the libhello dll and import when using
libhello. For GCC and non-w32, and when building a static
libhello, leave as an ordinary extern.
* tests/pdemo/foo.h [Cygwin]: Remove unneeded and "dead" export
and import logic (LIBFOO_DLL is always undefined).
* tests/pdemo/longer_file_name_foo.c,
tests/pdemo/longer_file_name_foo2.c (_LIBFOO_COMPILATION_): Not
useful before, even less so now. Removed.
* tests/depdemo/l1/Makefile.am: Define BUILDING_LIBL1 when
building libl1.la.
* tests/depdemo/l2/Makefile.am: Define BUILDING_LIBL2 when
building libl2.la.
* tests/depdemo/l3/Makefile.am: Define BUILDING_LIBL3 when
building libl3.la.
* tests/depdemo/l4/Makefile.am: Define BUILDING_LIBL4 when
building libl4.la.
* tests/depdemo/l1/l1.h, tests/depdemo/l2/l2.h,
tests/depdemo/l3/l3.h, tests/depdemo/l4/l4.h <MSVC>: Export
variables when building the associated library dll and import
when using the library. For GCC and non-w32, and when building
static libraries, leave as an ordinary extern.
Gary V. Vaughan [Fri, 24 Sep 2010 05:51:36 +0000 (12:51 +0700)]
libtool: remove redundant unsubstituted shell var defaults.
* Makefile.am (libltdl/config/ltmain.sh): Boilerplate code from
libltdl/config/general.m4 sets some default shell variables
designed to be substituted by `$(configure_edit)'. Actually,
`libtool' uses the language tag values for those variables, and
`ltmain.m4sh' is not passed through `$(configure_edit)', so they
are just noise. Edit them out at bootstrap time.
Gary V. Vaughan [Thu, 23 Sep 2010 10:00:08 +0000 (17:00 +0700)]
maint: don't leak developer GREP, SED etc into distribution file.
* Makefile.am: Having rearranged the file, now apply the actual
changes to follow-up.
(edit): Split into two parts...
(bootstrap_edit): ...substitutions that should happen at bootstrap
time...
(configure_edit): ...and substitutions that should not happen until
configure time.
* Makefile.am (libltdl/m4/ltversion.m4, libltdl/config/ltmain.sh)
(libtoolize.in, tests/package.m4): Use bootstrap_edit.
(libtoolize, tests/defs): Use configure_edit.
* HACKING (Release Procedure): Remove the note to workaround the
bug fixed by this changeset.
* NEWS (Bug fixes): Mention that this bug is now fixed.
Reported by Joerg Sonnenberger.
Gary V. Vaughan [Wed, 1 Sep 2010 07:41:52 +0000 (14:41 +0700)]
maint: rearrange Makefile.am in preparation for a follow-up patch.
* Makefile.am (Libtool scripts.): Move this section below the
`Bootstrap.' section...
(libtoolize.in): ...except this one which is generated at
bootstrap time, and was added into the `Bootstrap.' section.
(Libltdl.): Move this section below the `Libtool scripts.'
section.
Peter Rosin [Fri, 24 Sep 2010 06:44:24 +0000 (08:44 +0200)]
msvc: don't try to export import descriptors.
* libltdl/m4/libtool.m4 (_LT_LINKER_SHLIBS) [cygwin, mingw]
[pw32, cegcc] <cl*, exclude_expsyms>: Don't export symbols in
import libraries related to describing what dll(s) the import
library is importing. Fixes problem in tests/demo-make.test
and some other tests.
Fix regression in command-line length computation.
* libltdl/m4/libtool.m4 (LT_CMD_MAX_LEN): Use `env echo' rather
than possibly-undefined func_fallback_echo, to ensure we fork
and exec for this test.
* NEWS: Update.
Regression introduced in v2.2.6-39-g9c3d4d8.
Gary V. Vaughan [Wed, 22 Sep 2010 14:42:13 +0000 (21:42 +0700)]
Release 2.4.
* libltdl/Makefile.inc (LTDL_VERSION_INFO): We've added the
static libprefix interface, so new version-info is C+1:0:R+1.
* configure.ac, libltdl/configure.ac (AC_INIT): Bump version
numbers.
* NEWS: Update version number.
Peter Rosin [Wed, 22 Sep 2010 07:58:47 +0000 (09:58 +0200)]
tests: reloadable objects do not work on MSVC, SKIP test.
* libltdl/m4/libtool.m4 (_LT_LINKER_SHLIBS)
[cygwin, mingw, pw32, cegcc] <cl*, reload_cmds>: Indicate that
reloadable objects do not work.
* tests/duplicate_conv.at: Skip last test if reloadable
objects do not work.
* doc/libtool.texi (libtool script contents) <reload_cmds>:
Document how to indicate that reloadable objects do not work.
Peter Rosin [Tue, 21 Sep 2010 18:31:37 +0000 (20:31 +0200)]
msvc: eliminate spaces in the library search path.
* libltdl/m4/libtool.m4 (_LT_SYS_DYNAMIC_LINKER) [mingw, cygwin]
<cl*, sys_lib_search_path_spec>: The LIB path variable telling
where MSVC looks for libraries is likely to contain directory
names with spaces. Convert those directory names to the short
8.3 DOS form (i.e. without spaces) when storing them in
sys_lib_search_path_spec, as that is a space separated variable.
Revert to per-language libpath computation on AIX.
* libltdl/m4/libtool.m4 (_LT_SYS_MODULE_PATH_AIX): Accept
tagname argument. Use global cache variable lt_cv_aix_libpath
to override per-language tag variables for the libpath value.
Fix the sed script to remove trailing space.
(_LT_LINKER_SHLIBS, _LT_LANG_CXX_CONFIG): Pass tag argument to
_LT_SYS_MODULE_PATH_AIX.
Tracked down and reported by Rainer Tammer.
Gary V. Vaughan [Tue, 21 Sep 2010 00:57:15 +0000 (07:57 +0700)]
maint: edit-readme-alpha shouldn't try to re-edit during dist.
* libltdl/config/edit-readme-alpha: If README is non-writable
assume that it is being run from distcheck, and bail out with
a warning (to help diagnose cases where the heuristic is not
correct). However, if README has already been edited to the
alpha text, quietly skip without an error message.
Eric Blake [Mon, 20 Sep 2010 18:04:50 +0000 (12:04 -0600)]
build: ship autobuild.m4, to reduce bootstrap requirement
Shipping a copy of autobuild.m4 makes it so that users need not
pre-install autobuild just for aclocal to find the macro AB_INIT.
* libltdl/m4/.gitignore: Drop autobuild.m4.
* libltdl/m4/autobuild.m4: New file, copied from autobuild.
* configure.ac (AB_INIT): Unconditionally call it.
Peter Rosin [Mon, 20 Sep 2010 07:11:43 +0000 (09:11 +0200)]
libltdl: Make sure preloaded symbols are declared extern "C".
* libltdl/ltdl.h (LTDL_SET_PRELOADED_SYMBOLS): Move the
declaration of lt__PROGRAM__LTX_preloaded_symbols to global
scope and make sure it has "C" linkage. Makes exceptions.at
succeed on MSVC.
Peter Rosin [Mon, 20 Sep 2010 07:07:25 +0000 (09:07 +0200)]
tests: __declspec (dll{ex,im}port) in tests/exceptions.at
* tests/exceptions.at (common.h, module.h, lib.h) [w32]: Use
__declspec (dllimport) and __declspec (dllexport) instead of
the less portable __attribute__ ((dllimport)) and
__attribute__ ((dllexport)). Makes the test compile on MSVC.
Gary V. Vaughan [Sat, 18 Sep 2010 05:08:13 +0000 (12:08 +0700)]
maint: use sed instead of maintaining 2 README files.
* README.alpha: Deleted. It was mostly identical to README.
* libltdl/config/edit-readme-alpha: New script to edit the
contents of README in the dist tree prior to tarring up.
* Makefile.am (dist-hook): Run it before rolling alpha release
tarball.
Gary V. Vaughan [Sat, 18 Sep 2010 04:13:50 +0000 (11:13 +0700)]
maint: improve README's `Obtaining the Latest Sources'.
* README (Obtaining the Latest Sources): Add instructions for
obtaining stable, alpha and nightly snapshot tarballs.
* README.alpha (Obtaining the Latest Sources): Adjust to match.
Gary V. Vaughan [Sat, 18 Sep 2010 03:38:10 +0000 (10:38 +0700)]
maint: improve `Reporting Bugs' in README and README.alpha.
* README (Reporting Bugs): Rewritten to a more complete and
concise guide to providing a good bug report.
* README.alpha (Reporting Bugs): Adjust to match.
Gary V. Vaughan [Sat, 18 Sep 2010 03:08:25 +0000 (10:08 +0700)]
maint: consolidate Introductions of README and README.alpha.
* README (Introduction): Rewritten to a more logical order for
first time users, incorporating some additional text that was
previously only in README.alpha.
* README.alpha (Introduction): Adjust to match.
Gary V. Vaughan [Thu, 16 Sep 2010 02:47:45 +0000 (09:47 +0700)]
maint: improve README instructions for fetching latest version.
* README, README-alpha (Obtaining the Latest Sources): New
section, describing use of savannah repositories and bootstrap.
* README.alpha (Reporting Bugs): Remove git instructions in
favour of a reference to the new `Obtaining the Latest Sources'
section.
Charles Wilson [Fri, 17 Sep 2010 16:23:28 +0000 (12:23 -0400)]
Fix order of PATH manipulation in cwrapper and shwrapper
* libltdl/config/ltmain.m4sh (func_emit_cwrapperexe_src:main): Call
lt_update_exe_path before lt_update_lib_path, to ensure that the
temporary rpath values (which include the OBJDIRs of uninstalled
libtool libraries) precede installation and final -rpath directories.
(func_emit_wrapper): Prepend $dllsearchpath to PATH before prepending
$temp_rpath to $shlibpath_var; similar rationale as above.
Reported by Jon Turney <jon.turney@dronecode.org.uk>
Signed-off-by: Charles Wilson <libtool@cwilson.fastmail.fm>
tests: avoid localization failure due to unstable compiler messages.
* tests/testsuite.at (LT_AT_NORMALIZE_COMPILER_OUTPUT):
Attempt to normalize temporary file names in error messages.
Fixes 'localized compiler messages' test failure on Darwin when
creating fat (multi-ABI) libraries.
Peter Rosin [Mon, 13 Sep 2010 07:48:57 +0000 (09:48 +0200)]
Prefer $NM @file when the toolchain isn't native to $build.
* libltdl/config/ltmain.m4sh (func_mode_link): Avoid calculating
the command line length and take the @file branch *if* the file
names needs to be converted for the toolchain and the @file
branch works. Fixes problems in stresstest.at when doing a cross
from Cygwin to MinGW using MinGW native tools (a.k.a. a "faked"
cross), and for the specific case of MSVC on Cygwin it makes the
test pass.
Gary V. Vaughan [Thu, 16 Sep 2010 02:05:28 +0000 (09:05 +0700)]
Remove obsolete .cvs ignore files.
* .cvsignore, doc/.cvsignore, libltdl/.cvsignore,
libltdl/config/.cvsignore, libltdl/loaders/.cvsignore,
libltdl/m4/.cvsignore, tests/.cvsignore,
tests/cdemo/.cvsignore, tests/demo/.cvsignore,
tests/depdemo/l1/.cvsignore, tests/depdemo/l2/.cvsignore,
tests/depdemo/l3/.cvsignore, tests/depdemo/l4/.cvsignore,
tests/f77demo/.cvsignore, tests/fcdemo/.cvsignore,
tests/mdemo/.cvsignore, tests/mdemo2/.cvsignore,
tests/pdemo/.cvsignore, tests/tagdemo/.cvsignore: Deleted. Even
when using savannah's CVS readonly mirror there's no way to commit
back to the real repo, so this files are not worth maintaining
or keeping around.
doc: avoid long lines in input and output, indexing fixes.
* doc/libtool.texi (Linking libraries)
(Module loaders for libltdl): Manually line-wrap examples, to
avoid long lines.
(Libltdl interface, User defined module data)
(Module loaders for libltdl): Wrap long @deftypefun input lines
using trailing '@'. Use @deftypefun rather than @deftp where
appropriate, and add spaces in @deftypefun lines to fix the
index entries generated from these lines.
(Cheap tricks): Use @smallexample rather than @example, to avoid
long lines.
* tests/libtoolize.at (libtoolize macro serial update)
(libtoolize config files serial update, LIBTOOLIZE_OPTIONS):
Do not create empty files with AT_DATA, the latter is documented
to require a final newline. Fixes testsuite failures with zsh
4.3.10.
Charles Wilson [Sun, 12 Sep 2010 13:19:51 +0000 (09:19 -0400)]
When assigning $linklib value, honor [-all]-static[-libtool-libs]
* libltdl/config/ltmain.m4sh (func_mode_link): When prefer_static_libs
and static library exists, ensure old_library name is used as $linklib.
Fixes failure on mingw when both static and shared libraries are
present.
Signed-off-by: Charles Wilson <libtool@cwilson.fastmail.fm>
* libltdl/m4/libtool.m4 (_LT_LINKER_SHLIBS) [irix]: Cache result
of link check for -Wl,-exported_symbol.
* tests/no-executables.at (AC_NO_EXECUTABLES): Set
lt_cv_irix_exported_symbol, to avoid link check.
Peter Rosin [Fri, 10 Sep 2010 13:04:17 +0000 (15:04 +0200)]
Convert file name to toolchain format when invoking $NM.
* libltdl/config/ltmain.m4sh (func_generate_dlsyms)
(func_win32_libid, func_cygming_gnu_implib_p)
(func_cygming_ms_implib_p): When using the name lister to find
symbols in files, convert the file names to a format appropriate
for the tool. Fixes testsuite issues in mdemo-static-make.test
and mdemo-make.test when doing a cross from Cygwin/Wine to MinGW
using MinGW native tools (a.k.a. a "faked" cross).
Peter Rosin [Thu, 9 Sep 2010 18:51:27 +0000 (20:51 +0200)]
Fix dependency tracking for MSYS/MinGW.
* libltdl/config/ltmain.m4sh (func_to_tool_file): Add lazy
argument which allows the user to specify conversions that are
not desired.
(func_mode_compile): Don't convert source files on MSYS, as
MSYS does it for us. This fixes a regression introduced by
"Use func_to_tool_file instead of fix_srcfile_path".
Reported by Charles Wilson.
Peter Rosin [Tue, 7 Sep 2010 16:31:18 +0000 (18:31 +0200)]
Adjust naming of MSVC import libraries.
* libltdl/m4/libtool.m4 (_LT_SYS_DYNAMIC_LINKER) [mingw, cygwin]
[pw32, cegcc] <cl*, library_names_spec>: Adjust naming of the
import library from foo-<major-version>.lib to foo.dll.lib, to
avoid clashes with the static library for unversioned libraries.
(_LT_LINKER_SHLIBS, _LT_LANG_CXX_CONFIG) [mingw, cygwin, pw32]
[cegcc] <cl*, archive_expsym_cmds>: Explicitely name the import
library to match the above.