diff -uNr php-8.1.0/ext/opcache/config.m4 php-8.1.0.mod/ext/opcache/config.m4
--- php-8.1.0/ext/opcache/config.m4	2021-11-24 00:26:11.000000000 +0530
+++ php-8.1.0.mod/ext/opcache/config.m4	2021-11-26 11:37:50.343462890 +0530
@@ -328,6 +328,8 @@
 	shared_alloc_posix.c \
 	$ZEND_JIT_SRC,
 	shared,,"-Wno-implicit-fallthrough -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1",,yes)
+	OPCACHE_SHARED_LIBADD=-lpcre2-8
+	PHP_SUBST(OPCACHE_SHARED_LIBADD)
 
   PHP_ADD_EXTENSION_DEP(opcache, pcre)