diff --git a/configure b/configure
index 4cea98e..bffb849 100755
--- a/configure
+++ b/configure
@@ -9542,6 +9542,8 @@
 		# Issue #18075: the default maximum stack size (8MBytes) is too
 		# small for the default recursion limit. Increase the stack size
 		# to ensure that tests don't crash
+		# Note: This matches the value of THREAD_STACK_SIZE in
+		# thread_pthread.h
 		LINKFORSHARED="-Wl,-stack_size,1000000 $LINKFORSHARED"
 
 		if test "$enable_framework"