5 files changed, 12 insertions, 10 deletions
diff --git a/drivers/unix/file_access_unix.cpp b/drivers/unix/file_access_unix.cpp
index d1e4d207e7..a35d8bfdde 100644
--- a/drivers/unix/file_access_unix.cpp
+++ b/drivers/unix/file_access_unix.cpp
@@ -395,7 +395,7 @@ Error FileAccessUnix::_set_unix_permissions(const String &p_file, BitField<FileA
 }
 
 bool FileAccessUnix::_get_hidden_attribute(const String &p_file) {
-#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__APPLE__)
 	String file = fix_path(p_file);
 
 	struct stat st = {};
@@ -409,7 +409,7 @@ bool FileAccessUnix::_get_hidden_attribute(const String &p_file) {
 }
 
 Error FileAccessUnix::_set_hidden_attribute(const String &p_file, bool p_hidden) {
-#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__APPLE__)
 	String file = fix_path(p_file);
 
 	struct stat st = {};
diff --git a/drivers/unix/net_socket_posix.cpp b/drivers/unix/net_socket_posix.cpp
index a8074aa3f6..1e52b39be1 100644
--- a/drivers/unix/net_socket_posix.cpp
+++ b/drivers/unix/net_socket_posix.cpp
@@ -787,11 +787,11 @@ Ref<NetSocket> NetSocketPosix::accept(IPAddress &r_ip, uint16_t &r_port) {
 	return Ref<NetSocket>(ns);
 }
 
-Error NetSocketPosix::join_multicast_group(const IPAddress &p_multi_address, String p_if_name) {
+Error NetSocketPosix::join_multicast_group(const IPAddress &p_multi_address, const String &p_if_name) {
 	return _change_multicast_group(p_multi_address, p_if_name, true);
 }
 
-Error NetSocketPosix::leave_multicast_group(const IPAddress &p_multi_address, String p_if_name) {
+Error NetSocketPosix::leave_multicast_group(const IPAddress &p_multi_address, const String &p_if_name) {
 	return _change_multicast_group(p_multi_address, p_if_name, false);
 }
 
diff --git a/drivers/unix/net_socket_posix.h b/drivers/unix/net_socket_posix.h
index 2682530e15..aa59ff36ee 100644
--- a/drivers/unix/net_socket_posix.h
+++ b/drivers/unix/net_socket_posix.h
@@ -98,8 +98,8 @@ public:
 	virtual void set_tcp_no_delay_enabled(bool p_enabled);
 	virtual void set_reuse_address_enabled(bool p_enabled);
 	virtual void set_reuse_port_enabled(bool p_enabled);
-	virtual Error join_multicast_group(const IPAddress &p_multi_address, String p_if_name);
-	virtual Error leave_multicast_group(const IPAddress &p_multi_address, String p_if_name);
+	virtual Error join_multicast_group(const IPAddress &p_multi_address, const String &p_if_name);
+	virtual Error leave_multicast_group(const IPAddress &p_multi_address, const String &p_if_name);
 
 	NetSocketPosix();
 	~NetSocketPosix();
diff --git a/drivers/unix/os_unix.cpp b/drivers/unix/os_unix.cpp
index 51ea9234d4..83a332dea9 100644
--- a/drivers/unix/os_unix.cpp
+++ b/drivers/unix/os_unix.cpp
@@ -153,7 +153,9 @@ int OS_Unix::unix_initialize_audio(int p_audio_driver) {
 }
 
 void OS_Unix::initialize_core() {
+#ifdef THREADS_ENABLED
 	init_thread_posix();
+#endif
 
 	FileAccess::make_default<FileAccessUnix>(FileAccess::ACCESS_RESOURCES);
 	FileAccess::make_default<FileAccessUnix>(FileAccess::ACCESS_USERDATA);
@@ -637,7 +639,7 @@ String OS_Unix::get_locale() const {
 	return locale;
 }
 
-Error OS_Unix::open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path) {
+Error OS_Unix::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path) {
 	String path = p_path;
 
 	if (FileAccess::exists(path) && path.is_relative_path()) {
@@ -675,7 +677,7 @@ Error OS_Unix::close_dynamic_library(void *p_library_handle) {
 	return OK;
 }
 
-Error OS_Unix::get_dynamic_library_symbol_handle(void *p_library_handle, const String p_name, void *&p_symbol_handle, bool p_optional) {
+Error OS_Unix::get_dynamic_library_symbol_handle(void *p_library_handle, const String &p_name, void *&p_symbol_handle, bool p_optional) {
 	const char *error;
 	dlerror(); // Clear existing errors
 
diff --git a/drivers/unix/os_unix.h b/drivers/unix/os_unix.h
index 86b0e38e92..d3393c98ec 100644
--- a/drivers/unix/os_unix.h
+++ b/drivers/unix/os_unix.h
@@ -55,9 +55,9 @@ public:
 
 	virtual Error get_entropy(uint8_t *r_buffer, int p_bytes) override;
 
-	virtual Error open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr) override;
+	virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr) override;
 	virtual Error close_dynamic_library(void *p_library_handle) override;
-	virtual Error get_dynamic_library_symbol_handle(void *p_library_handle, const String p_name, void *&p_symbol_handle, bool p_optional = false) override;
+	virtual Error get_dynamic_library_symbol_handle(void *p_library_handle, const String &p_name, void *&p_symbol_handle, bool p_optional = false) override;
 
 	virtual Error set_cwd(const String &p_cwd) override;