* configure.ac (APIVERSION): New substituted variable.

(pkgvdatadir): Ditto.  Versioned data directory.
(pkgvmacrodir): Ditto.  Versioned aclocal directory.
(LN): New check for LN command.
* Makefile.am (aclocal_DATA): Replaced with...
(pkgvmacro_DATA): ...this.
(install-data-local): Remove old shared resources.
(install-exec-hook): Make versioned links to executables.
(uninstall-hook): Remove versioned files.
* libltdl/Makefile.am (ltdldatadir): Redefine in terms of
pkgvdatadir.
* libltdl/loaders/Makefile.am (ltdldatadir): Ditto.
* libtoolize.m4sh: Copy macro files from versioned macro directory
instead of shared aclocal directory.
* doc/libtool.texi: Document it.
* NEWS: Updated.

ChangeLog

@@ -1,3 +1,22 @@
+2004-11-14  Gary V. Vaughan  <gary@gnu.org>
+
+	* configure.ac (APIVERSION): New substituted variable.
+	(pkgvdatadir): Ditto.  Versioned data directory.
+	(pkgvmacrodir): Ditto.  Versioned aclocal directory.
+	(LN): New check for LN command.
+	* Makefile.am (aclocal_DATA): Replaced with...
+	(pkgvmacro_DATA): ...this.
+	(install-data-local): Remove old shared resources.
+	(install-exec-hook): Make versioned links to executables.
+	(uninstall-hook): Remove versioned files.
+	* libltdl/Makefile.am (ltdldatadir): Redefine in terms of
+	pkgvdatadir.
+	* libltdl/loaders/Makefile.am (ltdldatadir): Ditto.
+	* libtoolize.m4sh: Copy macro files from versioned macro directory
+	instead of shared aclocal directory.
+	* doc/libtool.texi: Document it.
+	* NEWS: Updated.
+
 2004-11-10  Gary V. Vaughan  <gary@gnu.org>
 
 	From James Henstridge <james@jamesh.id.au>:

Makefile.am

@@ -38,11 +38,12 @@ edit = sed \
 	-e 's,@PACKAGE_VERSION\@,$(VERSION),g' \
 	-e 's,@SED\@,$(SED),g' \
 	-e 's,@VERSION\@,$(VERSION),g' \
-	-e 's,@prefix\@,$(prefix),g' \
-	-e 's,@datadir\@,$(datadir),g' \
-	-e 's,@pkgdatadir\@,$(pkgdatadir),g' \
 	-e 's,@aclocaldir\@,$(aclocaldir),g' \
+	-e 's,@datadir\@,$(datadir),g' \
 	-e 's,@host_triplet\@,$(host_triplet),g' \
+	-e 's,@pkgvdatadir\@,$(pkgvdatadir),g' \
+	-e 's,@pkgvmacrodir\@,$(pkgvmacrodir),g' \
+	-e 's,@prefix\@,$(prefix),g' \
 	-e "s,@configure_input\@,Generated from $$input; do not edit by hand,g"
 
 timestamp = set -- `$(MKSTAMP) < $(top_srcdir)/ChangeLog`; \
@@ -66,13 +67,13 @@ CLEANFILES = libtool libtoolize \
 # These are required by libtoolize and must be executable when installed.
 # Since _SCRIPTS gets the program transform applied we make them
 # executable by hand
-dist_pkgdata_DATA = config/config.guess config/config.sub config/ltmain.sh
+dist_pkgvdata_DATA = config/config.guess config/config.sub config/ltmain.sh
 
 # Everything that gets picked up by aclocal is automatically distributed,
 # this is the list of macro files we install on the user's system.
-# NOTE: Ensure that PKGMACRO_FILES in libtoolize.in is updated if you
+# NOTE: Ensure that PKGVMACRO_FILES in libtoolize.in is updated if you
 #       change the contents of aclocal_DATA:
-aclocal_DATA = m4/argz.m4 m4/libtool.m4 m4/ltdl.m4 \
+pkgvmacro_DATA = m4/argz.m4 m4/libtool.m4 m4/ltdl.m4 \
 	m4/ltoptions.m4 m4/ltsugar.m4 m4/ltversion.m4
 
 ## We know that $(top_srcdir)/ChangeLog has been edited if stamp-vcl
@@ -251,12 +252,37 @@ clean-local: legacy-clean-local
 
 
 install-data-local:
-## Don't install over the top of an old pkgdatadir
+## Don't install over the top of an old pkgvdatadir
+	-rm -rf $(DESTDIR)$(pkgvdatadir)
+## Remove old pkgdatadir
 	-rm -rf $(DESTDIR)$(pkgdatadir)
+## Remove old macro definitions
+	-rm -rf $(DESTDIR)$(aclocaldir)/ltdl.m4
+	-rm -rf $(DESTDIR)$(aclocaldir)/libtool.m4
 
 install-data-hook:
-	chmod +x $(DESTDIR)$(pkgdatadir)/config.guess
+	chmod +x $(DESTDIR)$(pkgvdatadir)/config.guess
-	chmod +x $(DESTDIR)$(pkgdatadir)/config.sub
+	chmod +x $(DESTDIR)$(pkgvdatadir)/config.sub
+
+## Make versioned links.  We only run the transform on the root name;
+## then we make a versioned link with the transformed base name.  This
+## seemed like the most reasonable approach.
+install-exec-hook:
+	@$(POST_INSTALL)
+	@for p in $(bin_SCRIPTS); do \
+	  f="`echo $$p|sed '$(transform)'`"; \
+	  fv="$$f-$(APIVERSION)"; \
+	  rm -f $(DESTDIR)$(bindir)/$$fv; \
+	  echo " $(LN) $(DESTDIR)$(bindir)/$$f $(DESTDIR)$(bindir)/$$fv"; \
+	  $(LN) $(DESTDIR)$(bindir)/$$f $(DESTDIR)$(bindir)/$$fv; \
+	done
+
+uninstall-hook:
+	@for p in $(bin_SCRIPTS); do \
+	  f="`echo $$p|sed '$(transform)'`"; \
+	  fv="$$f-$(APIVERSION)"; \
+	  rm -f $(DESTDIR)$(bindir)/$$fv; \
+	done
 
 ## Ship README.alpha only in alpha release, but renamed to README
 dist-hook:

NEWS

@@ -3,7 +3,16 @@ NEWS - list of user-visible changes between releases of GNU Libtool
 New in 2.1b: 2005-??-??; CVS version 2.1a, Libtool team:
 * New tests for support of Automake subdir-objects.
 
-New in 1.9f: 2004-??-??; CVS version 1.9e, Libtool team:
+New in 1.9h: 2004-??-??; CVS version 1.9g, Libtool team:
+* Libtool versions can now be parallel installed, except that only one
+  set of libltdl headers and static libs, and only one manual is retained.
+* In order for this to work, Libtool's aclocal macros are not installed
+  to a shared aclocal dir.  Either change your Makefile.am to use:
+     ACLOCAL_AMFLAGS = -I /usr/share/libtool-1.9g/m4
+  Or change your configure.ac to use:
+     AC_CONFIG_MACRO_DIR([m4])
+
+New in 1.9f: 2004-10-23; CVS version 1.9e, Libtool team:
 * Fix a regression in 1.9d, where ECHO was always set to 'echo' and the
   backslash quoting tests were never run.
 * Fix a regression in 1.9d, where progpath was used for --no-reexec before it

configure.ac

@@ -124,11 +124,19 @@ AC_SUBST([CONFIG_STATUS_DEPENDENCIES], ['$(top_builddir)/stamp-vcl'])
 ## ------------------------------- ##
 ## Libtool specific configuration. ##
 ## ------------------------------- ##
-pkgdatadir='${datadir}'"/${PACKAGE}"
-AC_SUBST([pkgdatadir]) # automake does not need this, but libtoolize does
 
-aclocaldir='${datadir}/aclocal'
+# The API version is the base version.  We must guarantee
-AC_SUBST([aclocaldir])
+# compatibility for all releases with the same API version.
+# Our current rule is that:
+# * All releases, including the prereleases, in an X.Y series
+#   are compatible.  So 2.0.1c is compatible with 2.0.
+# * Prereleases on the trunk are all incompatible -- 2.1b and 2.1c
+#   aren't the same.
+APIVERSION=`echo "$VERSION" | sed -e 's/^\([[0-9]]*\.[[0-9]]*[[a-z]]*\).*$/\1/'`
+AC_SUBST([APIVERSION])
+AC_SUBST([aclocaldir],   ["\${prefix}/aclocal"])
+AC_SUBST([pkgvdatadir],  ["\${datadir}/$PACKAGE-$APIVERSION"])
+AC_SUBST([pkgvmacrodir], ["\${datadir}/$PACKAGE-$APIVERSION/m4"])
 
 AC_ARG_ENABLE(ltdl-install,
     [AS_HELP_STRING([--disable-ltdl-install], [do not install libltdl])])
@@ -149,6 +157,22 @@ done
 AC_SUBST([DIST_MAKEFILE_LIST])
 
 
+# Test for ln.  We need use it to install the versioned binaries.
+AC_MSG_CHECKING([whether ln works])
+AC_CACHE_VAL([am_cv_prog_ln], [
+rm -f conftest conftest.file
+: >conftest.file
+if ln conftest.file conftest 2>/dev/null; then
+  am_cv_prog_ln=ln
+else
+  am_cv_prog_ln='cp -p'
+fi
+rm -f conftest conftest.file])
+AC_SUBST([LN], [$am_cv_prog_ln])
+result=no
+test "x$am_cv_prog_ln" = xln && result=yes
+AC_MSG_RESULT([$result])
+
 
 ## ---------------- ##
 ## compiler checks. ##

doc/libtool.texi

@@ -2106,6 +2106,16 @@ project, a copy of the relevant macro definitions will be placed in
 your @code{AC_CONFIG_MACRO_DIR}, where @command{aclocal} can reference
 them directly from @file{aclocal.m4}.
 
+Alternatively, if you want to keep all of your macros in a single
+@file{aclocal.m4}, or if you are using an older Automake that doesn't
+support in-tree m4_include, you need to arrange for @command{aclocal}
+to look in the versioned Libtool directory.  One way of doing this is
+to use @code{ACLOCAL_AMFLAGS} in your @file{Makefile.am}:
+
+@example
+ACLOCAL_AMFLAGS += -I $(prefix)/share/libtool-2.0/m4
+@end example
+
 
 @node Distributing
 @section Including libtool in your package

libltdl/Makefile.am

@@ -67,7 +67,7 @@ libltdlc_la_LIBADD	= $(libdlloader_la_LIBADD)
 
 ## These are installed as a subdirectory of pkgdatadir so that
 ## libtoolize --ltdl can find them later:
-ltdldatadir		= $(pkgdatadir)/libltdl
+ltdldatadir		= $(pkgvdatadir)/libltdl
 nobase_ltdldata_DATA	= COPYING.LIB Makefile.am README configure.ac \
 			  $(libltdl_la_SOURCES) $(libdlloader_la_SOURCES) \
 			  lt__dirent.c lt__dirent.h argz_.h argz.c

libltdl/loaders/Makefile.am

@@ -50,7 +50,7 @@ dld_link_la_LIBADD	= ../libdlloader.la -ldld
 
 ## These are installed as a subdirectory of pkgdatadir so that
 ## libtoolize --ltdl can find them later:
-ltdldatadir		= $(pkgdatadir)/libltdl/loaders
+ltdldatadir		= $(pkgvdatadir)/libltdl/loaders
 ltdldata_DATA		= Makefile.am dld_link.c dlopen.c dyld.c \
 			  load_add_on.c loadlibrary.c shl_load.c
 

libtoolize.m4sh

@@ -79,8 +79,8 @@ libtoolize_flags=
 # Locations for important files:
 prefix=@prefix@
 datadir=@datadir@
-pkgdatadir=@pkgdatadir@
+pkgvdatadir=@pkgvdatadir@
-aclocaldir=@aclocaldir@
+pkgvmacrodir=@pkgvmacrodir@
 auxdir=
 m4dir=
 ltdldir=
@@ -299,8 +299,8 @@ func_scan_files ()
     test -f "$configure_ac" \
         || func_fatal_help "\`$configure_ac' does not exist"
 
-    test -n "`cd $pkgdatadir && ls`" \
+    test -n "`cd $pkgvdatadir && ls`" \
-        || func_fatal_error "can not list files in \`$pkgdatadir'"
+        || func_fatal_error "can not list files in \`$pkgvdatadir'"
 
 
     # Set local variables to reflect contents of configure.ac
@@ -584,10 +584,10 @@ func_config_update ()
 {
   rerun_aclocal=false
 
-  # NOTE: PKGMACRO_FILES must be kept in synch with aclocal_DATA in the
+  # NOTE: PKGVMACRO_FILES must be kept in synch with pkgvmacro_DATA in the
   #       libtool top_srcdir/Makefile.am (libtool.m4 and ltdl.m4 are handled
   #       specially below though, so don't add them here):
-  pkgmacro_files='argz.m4:ltoptions.m4:ltsugar.m4:ltversion.m4'
+  pkgvmacro_files='argz.m4:ltoptions.m4:ltsugar.m4:ltversion.m4'
 
   glob_exclude_pkgaux_files='config.guess|config.sub|ltmain.sh'
 
@@ -597,7 +597,7 @@ func_config_update ()
   # Copy all the files from installed libltdl to this project, if the
   # user specified `--ltdl'.
   if test -n "$ltdldir"; then
-    eval func_copy_all_files -r "$pkgdatadir/libltdl" "$ltdldir"
+    eval func_copy_all_files -r "$pkgvdatadir/libltdl" "$ltdldir"
 
     # libtoolize the newly copied libltdl tree
     ( cd "$ltdldir" && "$progpath" $libtoolize_flags ) || exit $EXIT_FAILURE
@@ -609,17 +609,17 @@ func_config_update ()
     func_echo "putting files in AC_CONFIG_AUX_DIR, \`$auxdir'."
   fi
   if $opt_install || $opt_force; then
-    func_copy_all_files "$pkgdatadir" "$auxdir" "$glob_exclude_pkgaux_files"
+    func_copy_all_files "$pkgvdatadir" "$auxdir" "$glob_exclude_pkgaux_files"
-    func_config_update "$pkgdatadir/config.guess" "$auxdir/config.guess"
+    func_config_update "$pkgvdatadir/config.guess" "$auxdir/config.guess"
-    test -f "$pkgdatadir/config.sub" \
+    test -f "$pkgvdatadir/config.sub" \
-      && func_config_update "$pkgdatadir/config.sub" "$auxdir/config.sub"
+      && func_config_update "$pkgvdatadir/config.sub" "$auxdir/config.sub"
   fi
-  func_ltmain_update "$pkgdatadir/ltmain.sh" "$auxdir/ltmain.sh"
+  func_ltmain_update "$pkgvdatadir/ltmain.sh" "$auxdir/ltmain.sh"
 
   # Copy libtool's m4 macros to the macro directory, if they are newer.
   if test -n "$m4dir"; then
-    libtool_m4="$aclocaldir/libtool.m4"
+    libtool_m4="$pkgvmacrodir/libtool.m4"
-    ltdl_m4="$aclocaldir/ltdl.m4"
+    ltdl_m4="$pkgvmacrodir/ltdl.m4"
 
     $opt_quiet || func_echo "putting macros in AC_CONFIG_MACRO_DIR, \`$m4dir'."
 
@@ -632,7 +632,7 @@ func_config_update ()
       func_verbose "Not copying \`$ltdl_m4', libltdl not used."
     fi
 
-    func_copy_some_files "$aclocaldir" "$pkgmacro_files" \
+    func_copy_some_files "$pkgvmacrodir" "$pkgvmacro_files" \
       "$m4dir" func_serial_update
   fi
 }