diff --git a/ChangeLog b/ChangeLog
index b88bc1781..4636736a4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,25 @@
+1998-07-26  Jim Blandy  <jimb@zwingli.cygnus.com>
+
+	Clean up thread configuration.
+	* qthreads.m4: New file, which knows how to configure the qthreads
+	library.
+	* configure.in: Replace all thread package selection code.  Do the
+ 	--with-threads argument processing here.  Enable the appropriate
+ 	thread interface files in libguile.  Remove all qthreads
+ 	configuration code; call QTHREADS_CONFIGURE instead.  Set
+ 	GUILE_LIBS using the info provided by QTHREADS_CONFIGURE.
+	* threads.m4: Removed; not used any more.
+	* Makefile.am (aclocal_DATA): Mention qthreads.m4, not threads.m4.
+	* Makefile.in, aclocal.m4, configure: Rgnrtd.  (Sv th vwls!)
+	Note that these were regenerated with the tools available from
+	Cygnus's source tree, which have patches not available to the
+	general public.  I'm not sure this was a good idea; feel free to
+	revert them to the latest released versions of the tools.
+
+	Upgrade to the version of libtool available at Cygnus.  See note
+	above.
+	* config.guess, config.sub, ltconfig, ltmain.sh: Upgraded.
+
 1998-07-12  Mikael Djurfeldt  <mdj@barbara.nada.kth.se>
 
 	* configure.in: Changed variable HOSTNAME --> PROG_HOSTNAME in
diff --git a/build/ChangeLog b/build/ChangeLog
index 4cd54fcc7..87984ebea 100644
--- a/build/ChangeLog
+++ b/build/ChangeLog
@@ -1,3 +1,7 @@
+1998-07-26  Jim Blandy  <jimb@zwingli.cygnus.com>
+
+	* Makefile.in: Rebuilt, for config changes in parent dir.
+
 1998-01-05  Tim Pierce  <twp@skepsis.com>
 
 	* .cvsignore: New file.
diff --git a/ice-9/ChangeLog b/ice-9/ChangeLog
index 93c861b2c..edc812f21 100644
--- a/ice-9/ChangeLog
+++ b/ice-9/ChangeLog
@@ -1,3 +1,7 @@
+1998-07-26  Jim Blandy  <jimb@zwingli.cygnus.com>
+
+	* Makefile.in Rebuilt, for config changes in parent dir.
+
 1998-07-21  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>
 
 	* readline.scm (make-readline-port): Set prompt string to "... "
diff --git a/libguile/ChangeLog b/libguile/ChangeLog
index b361ebf03..16879e993 100644
--- a/libguile/ChangeLog
+++ b/libguile/ChangeLog
@@ -1,3 +1,13 @@
+1998-07-26  Jim Blandy  <jimb@zwingli.cygnus.com>
+
+	* Makefile.am: Adjust for new thread configuration system.
+	(INCLUDES): Include the value of THREAD_CPPFLAGS.
+	(guile_LDADD, check_ldadd): THREAD_LIBS_LOCAL has been renamed from
+	THREAD_LIBS.
+	(THREAD_LIBS): Definition deleted; automake will generate such
+	things automatically.
+	* Makefile.in: Regenerated.
+
 1998-07-23  Jim Blandy  <jimb@zwingli.cygnus.com>
 
 	Simplify smob and port marking; set the mark bit in the generic
diff --git a/qt/ChangeLog b/qt/ChangeLog
index de6f30d8b..089102e89 100644
--- a/qt/ChangeLog
+++ b/qt/ChangeLog
@@ -1,3 +1,19 @@
+1998-07-26  Jim Blandy  <jimb@zwingli.cygnus.com>
+
+	Use libtool, and the thread configuration mechanism.
+	* Makefile.am (lib_LTLIBRARIES, EXTRA_LTLIBRARIES,
+	libqthreads_la_SOURCES, libqthreads_la_LIBADD): These replace
+	lib_LIBRARIES, EXTRA_LIBRARIES, libqthreads_a_SOURCES,
+	libqthreads_a_LIBADD.  Use the variables set by the new config
+	system.
+	(libqthreads_la_DEPENDENCIES): New var.
+	(libqthreads_la_LDFLAGS): Add -rpath; automake claims it can't set
+	it itself, but I don't completely understand why.
+	(qtmds.o, qtmdc.o): Rules removed.  Use implicit build rules.
+	(qtmds.s, qtmdc.c, qtdmdb.s): Rules added, to make symlinks to the
+	appropriate files in the source tree.
+	* Makefile.in, md/Makefile.in, time/Makefile.in: Regenerated.
+
 1998-04-15  Mikael Djurfeldt  <mdj@nada.kth.se>
 
 	* qt.h.in: Declare return type of qt_abort as void.