--- libdaemon/server/daemon-server.c.orig
+++ libdaemon/server/daemon-server.c
@@ -14,6 +14,7 @@
 #include "daemon-server.h"
 #include "daemon-log.h"
 
+#include <fcntl.h>
 #include <dlfcn.h>
 #include <errno.h>
 #include <pthread.h>

--- lib/mm/memlock.c.orig
+++ lib/mm/memlock.c
@@ -150,7 +150,7 @@ static void _touch_memory(void *mem, siz
 
 static void _allocate_memory(void)
 {
-#ifndef VALGRIND_POOL
+#if !defined(VALGRIND_POOL) && defined(__GLIBC__)
 	void *stack_mem;
 	struct rlimit limit;
 	int i, area = 0, missing = _size_malloc_tmp, max_areas = 32, hblks;
--- tools/lvmcmdline.c
+++ tools/lvmcmdline.c
@@ -1252,7 +1252,7 @@
 	int err = is_valid_fd(STDERR_FILENO);
 
 	if (!is_valid_fd(STDIN_FILENO) &&
-	    !(stdin = fopen(_PATH_DEVNULL, "r"))) {
+	    !freopen(_PATH_DEVNULL, "r", stdin)) {
 		if (err)
 			perror("stdin stream open");
 		else
@@ -1262,7 +1262,7 @@
 	}
 
 	if (!is_valid_fd(STDOUT_FILENO) &&
-	    !(stdout = fopen(_PATH_DEVNULL, "w"))) {
+	    !freopen(_PATH_DEVNULL, "w", stdout)) {
 		if (err)
 			perror("stdout stream open");
 		/* else no stdout */
@@ -1270,7 +1270,7 @@
 	}
 
 	if (!is_valid_fd(STDERR_FILENO) &&
-	    !(stderr = fopen(_PATH_DEVNULL, "w"))) {
+	    !freopen(_PATH_DEVNULL, "w", stderr)) {
 		printf("stderr stream open: %s\n",
 		       strerror(errno));
 		return 0;
--- lib/commands/toolcontext.c.orig	2019-07-31 05:55:55.308887587 +0000
+++ lib/commands/toolcontext.c	2019-07-31 05:56:42.860889048 +0000
@@ -1862,7 +1862,7 @@
 	/* FIXME Make this configurable? */
 	reset_lvm_errno(1);
 
-#ifndef VALGRIND_POOL
+#if defined(VALGRIND_POOL) && defined(__GLIBC__)
 	/* Set in/out stream buffering before glibc */
 	if (set_buffering
 #ifdef SYS_gettid
@@ -2256,7 +2256,7 @@
 	if (cmd->libmem)
 		dm_pool_destroy(cmd->libmem);
 
-#ifndef VALGRIND_POOL
+#if defined(VALGRIND_POOL) && defined(__GLIBC__)
 	if (cmd->linebuffer) {
 		/* Reset stream buffering to defaults */
 		if (is_valid_fd(STDIN_FILENO) &&