* 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

diff --git a/ChangeLog b/ChangeLog
index 53f6911d627037b236d1854fa608c9b8b2f77a79..ab406acd51b0cc5686a99139c2f285e5b78bf480 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,17 @@
+1999-02-18  Thomas Tanner  <tanner@gmx.de>
+
+       * 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
+       
 1999-02-17  Alexandre Oliva  <oliva@dcc.unicamp.br>
 
        * ltconfig.in: (freebsd2*, sunos4*, exclude_expsyms): exclude

diff --git a/TODO b/TODO
index 763f591372e39913a7d7ba8efb2d71bf07003cbd..59a902a2bf779d8f734e9a1bdb60c0b433dc4eaa 100644 (file)
--- a/TODO
+++ b/TODO
@@ -35,6 +35,7 @@ this in the dso.5 page, this looks more informative :)
 * Inter-library dependencies should be fully tracked by libtool.
 Reminded by Alexandre Oliva.  This requires looking up installed
 libtool libraries for transparent support.
+Thomas Tanner has a patch for this.
 
 * Inter-library dependencies need to work for ltlibraries too.
 Thomas Tanner has a patch for this.
@@ -42,6 +43,7 @@ Thomas Tanner has a patch for this.
 * Alexandre Oliva suggests that we hardcode paths into libraries, as
 well as binaries:  `... -Wl,-soname -Wl,/tmp/libtest.so.0 ...'.  Tim
 Mooney wants the same thing.
+Thomas Tanner has a patch for this.
 
 * Tom Lane adds that HP-UX's linker, at least (I've also found this on
 AIX 4), distinguishes between global function and global variable
@@ -58,6 +60,9 @@ work under Solaris however.
 
 - libltdl documentation needs to be completed.
 
+- AC_PROG_LIBTOOL, AC_ENABLE/DISABLE_SHARED/STATIC, AC_LIBTOOL_DLOPEN
+  are not documented.
+
 In the future:
 **************
 

diff --git a/autogen b/autogen
index aebb562c760964ff42d782d040c2bf5201c2cb77..2a35dcac50783dad7e782fab0556e1245c5c2e5a 100644 (file)
--- a/autogen
+++ b/autogen
@@ -19,7 +19,7 @@ for sub in demo depdemo libltdl mdemo cdemo; do
   rm -f acinclude.m4
   cp ../libtool.m4 acinclude.m4
   aclocal
-  autoheader
+  test "$sub" = libltdl && autoheader
   automake --gnits --add-missing
   autoconf
   cd ..

diff --git a/doc/libtool.texi b/doc/libtool.texi
index 3ebd3a70ab32164c7311bec5046dfad0864a9869..ec6125738b62638ab55ed66e32c6f9dc55781fdc 100644 (file)
--- a/doc/libtool.texi
+++ b/doc/libtool.texi
@@ -1163,8 +1163,12 @@ Allow symbols from @var{output-file} to be resolved with @code{dlsym}
 @item -export-symbols @var{symfile}
 Tells the linker to export only the symbols listed in @var{symfile}. 
 The symbol file should end in @samp{.sym} and must contain the name of one 
-symbol per line. This option does not work for modules and is not
-supported on all platforms.
+symbol per line. This option has no effect on some platforms.
+By default all symbols are exported.
+
+@item -export-symbols-regex @var{regex}
+Same as @samp{-export-symbols}, except that only symbols matching
+the regular expression @var{regex} are exported.
 By default all symbols are exported.
 
 @item -L@var{libdir}
@@ -3376,6 +3380,12 @@ is no way to generate a shared library with references to symbols that
 aren't defined in that library.
 @end defvar
 
+@defvar always_export_symbols
+Whether libtool should automatically generate a list of exported symbols
+using @var{export_symbols_cmd} before linking an archive.
+Set to @samp{yes} or @samp{no}.  Default is @samp{no}
+@end defvar
+
 @defvar archive_cmds
 @defvarx archive_expsym_cmds
 @defvarx old_archive_cmds
@@ -3411,16 +3421,35 @@ i.e whether object files do not have to have the suffix ".o".
 Set to @samp{yes} or @samp{no}.
 @end defvar
 
+@defvar dlopen
+Whether @code{dlopen} is supported on the platform.
+Set to @samp{yes} or @samp{no}.
+@end defvar
+
+@defvar dlopen_self
+Whether it is possible to @code{dlopen} the executable itself.
+Set to @samp{yes} or @samp{no}.
+@end defvar
+
 @defvar echo
 An @code{echo} program which does not interpret backslashes as an
 escape character.
 @end defvar
 
+@defvar exclude_expsyms
+List of symbols that should not be listed in the preloaded symbols.
+@end defvar
+
 @defvar export_dynamic_flag_spec
 Compiler link flag that allows a dlopened shared library to reference
 symbols that are defined in the program.
 @end defvar
 
+@defvar export_symbols_cmd
+Command to extract exported symbols from @var{libobjs} to the
+file @var{export_symbols}.
+@end defvar
+
 @defvar finish_cmds
 Commands to tell the dynamic linker how to find shared libraries in a
 specific directory.
@@ -3491,6 +3520,10 @@ For information purposes, set to the specified and canonical names of
 the system that libtool was configured for.
 @end defvar
 
+@defvar include_expsyms
+List of symbols that must always be exported when using @var{export_symbols}.
+@end defvar
+
 @defvar libext
 The standard old archive suffix (normally "a").
 @end defvar
@@ -3517,6 +3550,9 @@ Whether libtool should automatically prefix module names with 'lib'.
 Set to @samp{yes} or @samp{no}.  By default, it is @samp{unknown}, which 
 means the same as @samp{yes}, but documents that we are not really sure
 about it.
+@samp{yes} means that it is possible both to @code{dlopen} and to
+link against a library wihthout 'lib' prefix,
+i.e. it requires @var{hardcode_direct} to be @samp{yes}.
 @end defvar
 
 @defvar need_version

diff --git a/ltconfig.in b/ltconfig.in
index 02d6770029e0655d63efa243836c86219d53c211..8543456ae27909b99e35c30e09bf37e234c487a8 100755 (executable)
--- a/ltconfig.in
+++ b/ltconfig.in
@@ -1022,7 +1022,7 @@ hardcode_minus_L=no
 hardcode_shlibpath_var=unsupported
 runpath_var=
 always_export_symbols=no
-export_symbols_cmd="$NM $libobjs | $global_symbol_pipe | sed '\''s/.* //'\' | sort | uniq > $export_symbols"
+export_symbols_cmd='$NM $libobjs | $global_symbol_pipe | sed '\''s/.* //'\'' | sort | uniq > $export_symbols'
 # include_expsyms should be a list of space-separated symbols to be *always*
 # included in the symbol list
 include_expsyms=

diff --git a/ltmain.in b/ltmain.in
index 0956e12d4b2709a97e6b4ee19c91576a162ae719..092263265a9804bab4a94b20be95134f717d3daf 100644 (file)
--- a/ltmain.in
+++ b/ltmain.in
@@ -672,6 +672,7 @@ compiler."
     dlprefiles=
     export_dynamic=no
     export_symbols=
+    export_symbols_regex=
     generated=
     hardcode_libdirs=
     finalize_hardcode_libdirs=
@@ -741,7 +742,7 @@ compiler."
            ;;
          esac
          ;;
-       exportsyms)
+       expsyms)
          export_symbols="$arg"
          if test ! -f "$arg"; then
            $echo "$modename: symbol file \`$arg' does not exist"
@@ -750,6 +751,11 @@ compiler."
          prev=
          continue
          ;;
+       expsyms_regex)
+         export_symbols_regex="$arg"
+         prev=
+         continue
+         ;;
        release)
          release="-$arg"
          prev=
@@ -822,12 +828,16 @@ compiler."
        fi
        ;;
 
-      -export-symbols)
-       if test -n "$export_symbols"; then
+      -export-symbols | -export-symbols-regex)
+       if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
          $echo "$modename: cannot have more than one -exported-symbols"
          exit 1
        fi
-       prev=exportsyms
+       if test "$arg" = "-export-symbols"; then
+         prev=expsyms
+       else
+         prev=expsyms_regex
+       fi
        continue
        ;;
 
@@ -1859,13 +1869,20 @@ EOF
        fi
         
        # Prepare the list of exported symbols
-       if test "$always_export_symbols" = yes && test -z "$export_symbols"; then
-         export_symbols="$objdir/$libname.exp"
-         $run $rm $export_symbols
-         $run eval "$export_symbols_cmd"
+       if test -z "$run" && test -z "$export_symbols"; then
+         if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
+           export_symbols="$objdir/$libname.exp"
+           $rm $export_symbols
+           eval cmd=\"$export_symbols_cmd\"
+           eval "$cmd"
+           if test -n "$export_symbols_regex"; then
+             egrep -e "$export_symbols_regex" "$export_symbols" > "$export_symbols"T
+             $mv "$export_symbols"T "$export_symbols"
+           fi
+         fi
        fi
        if test -n "$include_expsyms"; then
-         $run $echo "X$include_expsyms" | $SP2NL >> $export_symbols
+         $run $echo "X$include_expsyms" | $SP2NL >> "$export_symbols"
        fi
 
        # Do each of the archive commands.