diff -ru fetchmail-6.4.39.orig/configure fetchmail-6.4.39/configure
--- fetchmail-6.4.39.orig/configure	2024-07-20 11:34:52.000000000 +0200
+++ fetchmail-6.4.39/configure	2024-08-09 11:53:47.808214122 +0200
@@ -13349,8 +13349,8 @@
 		with_wolfssl="$(${_WOLFSSLCONF} --prefix)"
 	fi
 	if "$_WOLFSSLCONF" >/dev/null 2>&1 --version ; then
-		wolfCFLAGS="$(${_WOLFSSLCONF} --cflags)"
-		wolfLIBS="$(${_WOLFSSLCONF} --libs)"
+		wolfCFLAGS="$($PKG_CONFIG --cflags wolfssl)"
+		wolfLIBS="$($PKG_CONFIG --libs wolfssl)"
 	elif test -d "${with_wolfssl}/include" -a -d "${with_wolfssl}/lib" ; then
 		wolfCFLAGS="-I${with_wolfssl}/include"
 		wolfLIBS="-L${with_wolfssl}/lib -lwolfssl -lpthread"
diff -ru fetchmail-6.4.39.orig/fetchmail.c fetchmail-6.4.39/fetchmail.c
--- fetchmail-6.4.39.orig/fetchmail.c	2024-01-31 20:54:42.000000000 +0100
+++ fetchmail-6.4.39/fetchmail.c	2024-08-09 11:34:11.836359108 +0200
@@ -314,9 +314,11 @@
 		   "Run-time uses SSL library %#lx \"%s\"\n"),
 			OPENSSL_VERSION_NUMBER, OPENSSL_VERSION_TEXT,
 			OpenSSL_version_num(), OpenSSL_version(OPENSSL_VERSION));
+#ifndef USING_WOLFSSL
 	printf(GT_("OpenSSL: %s\nEngines: %s\n"),
 			OpenSSL_version(OPENSSL_DIR),
 			OpenSSL_version(OPENSSL_ENGINES_DIR));
+#endif
 # if !HAVE_DECL_TLS1_3_VERSION || defined(OPENSSL_NO_TLS1_3)
 	printf(GT_("WARNING: Your SSL/TLS library does not support TLS v1.3.\n"));
 # endif
Only in fetchmail-6.4.39: fetchmail.c.orig