diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 23c3329c01edc06edd05d55c49c85a845a8b9c0f..5a8631e65d167ddc9e22526e47715fd50173111c 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20230812
+20230813
diff --git a/gcc/m2/ChangeLog b/gcc/m2/ChangeLog
index b0e567e27845791132599e765ab0e1de75909a7c..70f294235c26869d4e69ea7e7d52ac525ad206e7 100644
--- a/gcc/m2/ChangeLog
+++ b/gcc/m2/ChangeLog
@@ -1,3 +1,32 @@
+2023-08-12  Gaius Mulley  <gaiusmod2@gmail.com>
+
+	PR modula2/110779
+	* gm2-libs-iso/SysClock.mod (EpochTime): New procedure.
+	(GetClock): Call EpochTime if the C time functions are
+	unavailable.
+	* gm2-libs-iso/wrapclock.def (istimezone): New function
+	definition.
+
+2023-08-12  Gaius Mulley  <gaiusmod2@gmail.com>
+
+	PR modula2/108119
+	* Make-lang.in (M2RTE_PLUGIN_SO): Assigned to
+	plugin/m2rte$(exeext).so if enable_plugin is yes.
+	(m2.all.cross): Replace plugin/m2rte$(soext) with
+	$(M2RTE_PLUGIN_SO).
+	(m2.all.encap): Replace plugin/m2rte$(soext) with
+	$(M2RTE_PLUGIN_SO).
+	(m2.install-plugin): Add dummy rule when enable_plugin
+	is not yes.
+	(plugin/m2rte$(exeext).so): Add dummy rule when enable_plugin
+	is not yes.
+	(m2/stage2/cc1gm2$(exeext)): Replace plugin/m2rte$(soext) with
+	$(M2RTE_PLUGIN_SO).
+	(m2/stage1/cc1gm2$(exeext)): Replace plugin/m2rte$(soext) with
+	$(M2RTE_PLUGIN_SO).
+	* gm2spec.cc (lang_specific_driver): Set need_plugin to false
+	by default.
+
 2023-08-09  Gaius Mulley  <gaiusmod2@gmail.com>
 
 	PR modula2/110779
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 962e671759fac5c7d2ab896b2460ba501872f702..b58303b1b0d1a7b45397a3413ce9f1f51373c3a0 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,16 @@
+2023-08-12  Gaius Mulley  <gaiusmod2@gmail.com>
+
+	PR modula2/108119
+	* gm2/iso/check/fail/iso-check-fail.exp (gm2_init_iso): Add -fm2-plugin.
+	* gm2/switches/auto-init/fail/switches-auto-init-fail.exp
+	(gm2_init_iso): Add -fm2-plugin.
+	* gm2/switches/check-all/pim2/fail/switches-check-all-pim2-fail.exp
+	(gm2_init_pim2): Add -fm2-plugin.
+	* gm2/switches/check-all/plugin/iso/fail/switches-check-all-plugin-iso-fail.exp
+	(gm2_init_iso): Add -fm2-plugin.
+	* gm2/switches/check-all/plugin/pim2/fail/switches-check-all-plugin-pim2-fail.exp
+	(gm2_init_pim2): Add -fm2-plugin.
+
 2023-08-11  Jason Merrill  <jason@redhat.com>
 
 	PR c++/109678
diff --git a/libgm2/ChangeLog b/libgm2/ChangeLog
index 98c81eae46387fe83dd13d7124b2e22884878131..3d39e53ccf2e027203e1535b4b49e74a987dd952 100644
--- a/libgm2/ChangeLog
+++ b/libgm2/ChangeLog
@@ -1,3 +1,23 @@
+2023-08-12  Gaius Mulley  <gaiusmod2@gmail.com>
+
+	PR modula2/110779
+	* configure: Regenerate.
+	* configure.ac: Provide special case test for Darwin cross
+	configuration.
+	(GLIBCXX_CONFIGURE): New statement.
+	(GLIBCXX_CHECK_GETTIMEOFDAY): New statement.
+	(GLIBCXX_ENABLE_LIBSTDCXX_TIME): New statement.
+	* libm2iso/wrapclock.cc: New sys/time.h conditional include.
+	(sys/syscall.h): Conditional include.
+	(unistd.h): Conditional include.
+	(GetTimeRealtime): Re-implement.
+	(SetTimeRealtime): Re-implement.
+	(timezone): Re-implement.
+	(istimezone): New function.
+	(daylight): Re-implement.
+	(isdst): Re-implement.
+	(tzname): Re-implement.
+
 2023-08-09  Gaius Mulley  <gaiusmod2@gmail.com>
 
 	PR modula2/110779