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3e083d9fd5
from 1999-03-25; Gary's delay_variable_subst patch from 1999-02-19 obviates it. Keep only quoting of $PATH, for uniformity with other systems that already did it * TODO: comments on hardcoding paths into libraries; problem with shell meta-characters in filenames
109 lines
4.4 KiB
Plaintext
109 lines
4.4 KiB
Plaintext
In the near future:
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********************
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* check whether the version of libtool.m4 is compatible
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with ltconfig/ltmain.sh
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* We could have an option to hardcode paths into libraries, as well as
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binaries: `... -Wl,-soname -Wl,/tmp/libtest.so.0 ...'. This is not
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possible on all platforms, and is in part obviated by the ability of
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linking libtool libraries specified with -lname, but it might still
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be desirable.
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* Lists of exported symbols should be stored in the pseudo library
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so that the size of lt_preloaded_symbols can be reduced.
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In the future:
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**************
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* Godmar Back writes:
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libltdl uses such stdio functions as fopen, fgets, feof, fclose, and others.
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These functions are not async-signal-safe. While this does not make
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libltdl unusable, it restricts its usefulness and puts an
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unnecessary burden on the user.
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As a remedy, I'd recommend to replace those functions with functions
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that POSIX says are async-signal-safe, such as open, read, close.
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This will require you to handle interrupted system calls and implement
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fgets, but the former isn't hard and there's plenty of implementations
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out from which you can steal the latter.
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I believe relying on async-signal-safe functions to the greatest extent
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possible would greatly improve libltdl's ability to be embedded in and
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used by other systems.
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* Support -dlopen/dlpreopen for libraries.
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This requires adding two new variables (dlopen/dlpreopen) to
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the pseudo-library and later dlopening them when a program is linked
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against such a library.
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* Fix */demo on win32.
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This may simply require resolving the item below.
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* Figure out how to use data items in dlls with win32.
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The difficult part is compiling each object which will be linked with an
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import lib differently than if it will be linked with a static lib. This will
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almost definitely require that automake pass some hints about linkage in to
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each object compilation line.
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* jeffdb@goodnet.com writes
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all you need to do for mutually dependant
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.dll's is to create an implib from a .def file
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so it appears that we might need to detect and handle mutual dependencies
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specially on win32 =(O|
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* If not cross-compiling, have the static flag test run the resulting
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binary to make sure everything works.
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* Implement full multi-language support. Currently, this is only for
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C++, but there are beginnings of this in the manual (Other Languages).
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This includes writing libtool not to be so dependent on the compiler
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used to configure it.
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We especially need this for C++ linking, for which libtool currently
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does not handle static constructors properly, even on operating
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systems that support them. ``Don't use static constructors'' is no
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longer a satisfactory answer.
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People who need it:
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Jean Daniel Fekete <Jean-Daniel.Fekete@emn.fr>
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Thomas Hiller <hiller@tu-harburg.d400.de>
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* Another form of convenience library, suggested by Alexandre Oliva,
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is to have undocumented utility libraries, where only the shared
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version is installed.
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* We could use libtool object convenience libraries that resolve
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symbols to be included in a libtool archive. This would require some
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sort of -whole-archive option, as well.
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* Currently, convenience libraries (.al) are built from .lo objects,
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except when --disable-shared. When we can build both shared and
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static libraries, we should probably create a .al out of .lo objects
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and also a .a out of .o objects. The .al would only be used to
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create shared libraries, whereas the .a would be used for creating
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static libraries and programs.
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* Need to finalize the documentation, and give a specification of
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`.la' files so that people can depend on their format. This also
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needs to be done so that DLD uses a public interface to libtool
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archives. This would be a good thing to put before the maintainance
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notes.
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* Filenames containing shell meta-characters are not properly handled
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by libtool. Compiling a file named "a;b.c", for example, fails.
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Things to think about:
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**********************
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* Talk with RMS about his so-called `automatic package generation
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tool.' This is probably what Thomas has been murmuring about for the
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Hurd. We'll need to integrate package-supplied programs such as
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libtool into that scheme, since it manages some of the preinstall and
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postinstall commands, but isn't installed itself. Probably, things
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like libtool should be distributed as part of such a binary package.
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* Maybe implement full support for other orthogonal library types
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(libhello_g, libhello_p, 64 vs 32-bit ABI's, etc). Make these types
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configurable.
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