diff --git a/schily-2021-07-29.tar.bz2 b/schily-2021-07-29.tar.bz2
deleted file mode 100644
index 4e0b6ad..0000000
--- a/schily-2021-07-29.tar.bz2
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:8c1ba399684d95fbbdd60856d306e895166e81d0596fef7ef946f95acfc5ea66
-size 4927143
diff --git a/schily-2021-08-14.tar.bz2 b/schily-2021-08-14.tar.bz2
new file mode 100644
index 0000000..2b11a92
--- /dev/null
+++ b/schily-2021-08-14.tar.bz2
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fb4e4c0ca534aa28127f7e7556c9017e059f4c7b93f6bfc33965f28091230f10
+size 4942864
diff --git a/schily-stksz.diff b/schily-stksz.diff
new file mode 100644
index 0000000..3868599
--- /dev/null
+++ b/schily-stksz.diff
@@ -0,0 +1,23 @@
+From: Jan Engelhardt <jengelh@inai.de>
+Date: 2021-08-15 18:31:19.413482687 +0200
+
+Due to VLA support in gcc, the sigsegv_stack test variable needs to be outside
+of a function for the test not to generate a false positive.
+---
+ autoconf/configure |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+Index: schily-2021-08-14/autoconf/configure
+===================================================================
+--- schily-2021-08-14.orig/autoconf/configure
++++ schily-2021-08-14/autoconf/configure
+@@ -6662,8 +6662,8 @@ else
+ #line 6663 "configure"
+ #include "confdefs.h"
+ #include <signal.h>
+-int main() {
+ char sigsegv_stack[SIGSTKSZ];
++int main() {
+ ; return 0; }
+ EOF
+ if { { eval echo configure:6670: \"$ac_compile\" ;} 1>&5; { eval $ac_compile ;} 2>&5; }; then
diff --git a/schily.changes b/schily.changes
index c0f8e2c..7f19ccb 100644
--- a/schily.changes
+++ b/schily.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Sun Aug 15 16:01:01 UTC 2021 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 2021.08.14
+  * A new test was added to check whether SIGSTKSZ is a constant.
+  * smake: While expanding the right side of a macro assignment with
+    the operators :::= and +:=, smake no longer expands $$ to $, but
+    rather leaves $$ untouched.
+  * smake: The dynamic macros $? and $^ now work for implicit rules
+    as well.
+- Add schily-stksz.diff
+
 -------------------------------------------------------------------
 Sat Jul 31 14:04:05 UTC 2021 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/schily.spec b/schily.spec
index 3137ba1..dc52513 100644
--- a/schily.spec
+++ b/schily.spec
@@ -17,11 +17,11 @@
 
 
 # grep -Pir 'define\s+VERSION|strvers'
-%define rver	2021-07-29
-%global box_version	2021.07.29
+%define rver	2021-08-14
+%global box_version	2021.08.14
 %global cdr_version	3.02~a10
 %global sccs_version	5.09
-%global smake_version	1.5
+%global smake_version	1.6
 %global star_version	1.6.1
 %global libfind_version 1.8
 %global ved_version     1.8
@@ -41,6 +41,7 @@ Source1:        README-FIRST
 # and submit patches upstream FIRST (cc to the bspkg maintainer perhaps).
 Patch1:         iconv-name.diff
 Patch2:         schily-2018-05-25_star_configuration.patch
+Patch3:         schily-stksz.diff
 BuildRequires:  autoconf
 BuildRequires:  fdupes
 BuildRequires:  gcc-c++
@@ -462,6 +463,7 @@ GB).
 
 %prep
 %autosetup -n %name-%rver -p1
+
 find . "(" -type d -o -type f ")" -exec chmod u+w "{}" "+"
 
 cp %{SOURCE1} .