diff --git a/components/newlib/src/realpath.c b/components/newlib/src/realpath.c
index 6a6f1bddc8..47ad2d4ba0 100644
--- a/components/newlib/src/realpath.c
+++ b/components/newlib/src/realpath.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -9,6 +9,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <assert.h>
+#include <dirent.h>
 #include <sys/param.h>
 
 /* realpath logic:
@@ -122,3 +123,20 @@ int chdir(const char *path)
     errno = ENOSYS;
     return -1;
 }
+
+/* std::filesystem functions call chmod and exit with an exception if it fails,
+ * so not failing with ENOSYS seems a better solution.
+ */
+int chmod(const char *path, mode_t mode)
+{
+    return 0;
+}
+
+/* As a workaround for libstdc++ being built with _GLIBCXX_HAVE_DIRFD,
+ * we have to provide at least a stub for dirfd function.
+ */
+int dirfd(DIR *dirp)
+{
+    errno = ENOSYS;
+    return -1;
+}
diff --git a/components/newlib/src/sysconf.c b/components/newlib/src/sysconf.c
index 545e4a2df4..83f5a02053 100644
--- a/components/newlib/src/sysconf.c
+++ b/components/newlib/src/sysconf.c
@@ -1,13 +1,18 @@
 /*
- * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
 
 #include <unistd.h>
 #include <errno.h>
+#include <limits.h>
+#include "esp_err.h"
+#include "esp_log.h"
 #include "sdkconfig.h"
 
+static const char *TAG = "sysconf";
+
 #ifdef CONFIG_FREERTOS_UNICORE
 #define CPU_NUM 1
 #else
@@ -25,3 +30,24 @@ long sysconf(int arg)
         return -1;
     }
 }
+
+// pathconf
+long fpathconf(int fildes, int name)
+{
+    if (name == _PC_PATH_MAX) {
+        return PATH_MAX;
+    }
+    ESP_LOGW(TAG, "fpathconf: unsupported name %d", name);
+    errno = EINVAL;
+    return -1;
+}
+
+long pathconf(const char *path, int name)
+{
+    if (name == _PC_PATH_MAX) {
+        return PATH_MAX;
+    }
+    ESP_LOGW(TAG, "pathconf: unsupported name %d", name);
+    errno = EINVAL;
+    return -1;
+}