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* TODO: updated
* autogen: only libltdl needs autoheader * doc/libtool.texi (link mode): documented -export-symbols-regex and updated -export-symbols * doc/libtool.texi (script contents): documented always_export_symbols, export_symbols_cmd, exclude_expsyms, include_expsyms, dlopen and dlopen_self more detailed description of need_lib_prefix * ltconfig.in: a "'" was missing in the default value of export_symbols_cmd * ltmain.in: implemented -export-symbols-regex
This commit is contained in:
Thomas Tanner
parent
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14
ChangeLog
14
ChangeLog
@ -1,3 +1,17 @@
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1999-02-18 Thomas Tanner <tanner@gmx.de>
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* TODO: updated
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* autogen: only libltdl needs autoheader
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* doc/libtool.texi (link mode): documented -export-symbols-regex
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and updated -export-symbols
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* doc/libtool.texi (script contents): documented
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always_export_symbols, export_symbols_cmd, exclude_expsyms,
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include_expsyms, dlopen and dlopen_self
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more detailed description of need_lib_prefix
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* ltconfig.in: a "'" was missing in the default value
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of export_symbols_cmd
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* ltmain.in: implemented -export-symbols-regex
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1999-02-17 Alexandre Oliva <oliva@dcc.unicamp.br>
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* ltconfig.in: (freebsd2*, sunos4*, exclude_expsyms): exclude
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5
TODO
5
TODO
@ -35,6 +35,7 @@ this in the dso.5 page, this looks more informative :)
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* Inter-library dependencies should be fully tracked by libtool.
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Reminded by Alexandre Oliva. This requires looking up installed
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libtool libraries for transparent support.
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Thomas Tanner has a patch for this.
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* Inter-library dependencies need to work for ltlibraries too.
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Thomas Tanner has a patch for this.
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@ -42,6 +43,7 @@ Thomas Tanner has a patch for this.
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* Alexandre Oliva suggests that we hardcode paths into libraries, as
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well as binaries: `... -Wl,-soname -Wl,/tmp/libtest.so.0 ...'. Tim
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Mooney wants the same thing.
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Thomas Tanner has a patch for this.
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* Tom Lane adds that HP-UX's linker, at least (I've also found this on
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AIX 4), distinguishes between global function and global variable
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@ -58,6 +60,9 @@ work under Solaris however.
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- libltdl documentation needs to be completed.
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- AC_PROG_LIBTOOL, AC_ENABLE/DISABLE_SHARED/STATIC, AC_LIBTOOL_DLOPEN
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are not documented.
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In the future:
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**************
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2
autogen
2
autogen
@ -19,7 +19,7 @@ for sub in demo depdemo libltdl mdemo cdemo; do
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rm -f acinclude.m4
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cp ../libtool.m4 acinclude.m4
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aclocal
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autoheader
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test "$sub" = libltdl && autoheader
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automake --gnits --add-missing
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autoconf
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cd ..
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@ -1163,8 +1163,12 @@ Allow symbols from @var{output-file} to be resolved with @code{dlsym}
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@item -export-symbols @var{symfile}
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Tells the linker to export only the symbols listed in @var{symfile}.
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The symbol file should end in @samp{.sym} and must contain the name of one
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symbol per line. This option does not work for modules and is not
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supported on all platforms.
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symbol per line. This option has no effect on some platforms.
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By default all symbols are exported.
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@item -export-symbols-regex @var{regex}
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Same as @samp{-export-symbols}, except that only symbols matching
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the regular expression @var{regex} are exported.
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By default all symbols are exported.
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@item -L@var{libdir}
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@ -3376,6 +3380,12 @@ is no way to generate a shared library with references to symbols that
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aren't defined in that library.
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@end defvar
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@defvar always_export_symbols
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Whether libtool should automatically generate a list of exported symbols
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using @var{export_symbols_cmd} before linking an archive.
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Set to @samp{yes} or @samp{no}. Default is @samp{no}
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@end defvar
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@defvar archive_cmds
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@defvarx archive_expsym_cmds
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@defvarx old_archive_cmds
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@ -3411,16 +3421,35 @@ i.e whether object files do not have to have the suffix ".o".
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Set to @samp{yes} or @samp{no}.
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@end defvar
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@defvar dlopen
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Whether @code{dlopen} is supported on the platform.
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Set to @samp{yes} or @samp{no}.
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@end defvar
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@defvar dlopen_self
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Whether it is possible to @code{dlopen} the executable itself.
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Set to @samp{yes} or @samp{no}.
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@end defvar
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@defvar echo
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An @code{echo} program which does not interpret backslashes as an
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escape character.
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@end defvar
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@defvar exclude_expsyms
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List of symbols that should not be listed in the preloaded symbols.
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@end defvar
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@defvar export_dynamic_flag_spec
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Compiler link flag that allows a dlopened shared library to reference
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symbols that are defined in the program.
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@end defvar
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@defvar export_symbols_cmd
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Command to extract exported symbols from @var{libobjs} to the
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file @var{export_symbols}.
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@end defvar
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@defvar finish_cmds
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Commands to tell the dynamic linker how to find shared libraries in a
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specific directory.
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@ -3491,6 +3520,10 @@ For information purposes, set to the specified and canonical names of
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the system that libtool was configured for.
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@end defvar
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@defvar include_expsyms
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List of symbols that must always be exported when using @var{export_symbols}.
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@end defvar
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@defvar libext
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The standard old archive suffix (normally "a").
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@end defvar
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@ -3517,6 +3550,9 @@ Whether libtool should automatically prefix module names with 'lib'.
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Set to @samp{yes} or @samp{no}. By default, it is @samp{unknown}, which
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means the same as @samp{yes}, but documents that we are not really sure
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about it.
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@samp{yes} means that it is possible both to @code{dlopen} and to
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link against a library wihthout 'lib' prefix,
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i.e. it requires @var{hardcode_direct} to be @samp{yes}.
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@end defvar
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@defvar need_version
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@ -1022,7 +1022,7 @@ hardcode_minus_L=no
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hardcode_shlibpath_var=unsupported
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runpath_var=
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always_export_symbols=no
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export_symbols_cmd="$NM $libobjs | $global_symbol_pipe | sed '\''s/.* //'\' | sort | uniq > $export_symbols"
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export_symbols_cmd='$NM $libobjs | $global_symbol_pipe | sed '\''s/.* //'\'' | sort | uniq > $export_symbols'
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# include_expsyms should be a list of space-separated symbols to be *always*
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# included in the symbol list
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include_expsyms=
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35
ltmain.in
35
ltmain.in
@ -672,6 +672,7 @@ compiler."
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dlprefiles=
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export_dynamic=no
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export_symbols=
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export_symbols_regex=
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generated=
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hardcode_libdirs=
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finalize_hardcode_libdirs=
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@ -741,7 +742,7 @@ compiler."
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;;
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esac
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;;
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exportsyms)
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expsyms)
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export_symbols="$arg"
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if test ! -f "$arg"; then
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$echo "$modename: symbol file \`$arg' does not exist"
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@ -750,6 +751,11 @@ compiler."
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prev=
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continue
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;;
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expsyms_regex)
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export_symbols_regex="$arg"
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prev=
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continue
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;;
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release)
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release="-$arg"
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prev=
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@ -822,12 +828,16 @@ compiler."
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fi
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;;
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-export-symbols)
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if test -n "$export_symbols"; then
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-export-symbols | -export-symbols-regex)
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if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
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$echo "$modename: cannot have more than one -exported-symbols"
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exit 1
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fi
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prev=exportsyms
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if test "$arg" = "-export-symbols"; then
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prev=expsyms
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else
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prev=expsyms_regex
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fi
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continue
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;;
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@ -1859,13 +1869,20 @@ EOF
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fi
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# Prepare the list of exported symbols
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if test "$always_export_symbols" = yes && test -z "$export_symbols"; then
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export_symbols="$objdir/$libname.exp"
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$run $rm $export_symbols
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$run eval "$export_symbols_cmd"
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if test -z "$run" && test -z "$export_symbols"; then
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if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
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export_symbols="$objdir/$libname.exp"
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$rm $export_symbols
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eval cmd=\"$export_symbols_cmd\"
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eval "$cmd"
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if test -n "$export_symbols_regex"; then
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egrep -e "$export_symbols_regex" "$export_symbols" > "$export_symbols"T
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$mv "$export_symbols"T "$export_symbols"
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fi
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fi
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fi
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if test -n "$include_expsyms"; then
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$run $echo "X$include_expsyms" | $SP2NL >> $export_symbols
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$run $echo "X$include_expsyms" | $SP2NL >> "$export_symbols"
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fi
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# Do each of the archive commands.
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