9 files changed, 32 insertions, 8 deletions
diff --git a/drivers/unix/dir_access_unix.cpp b/drivers/unix/dir_access_unix.cpp
index 7284226ae7..e011176806 100644
--- a/drivers/unix/dir_access_unix.cpp
+++ b/drivers/unix/dir_access_unix.cpp
@@ -407,6 +407,10 @@ size_t DirAccessUnix::get_space_left() {
 #endif
 };
 
+String DirAccessUnix::get_filesystem_type() const {
+	return ""; //TODO this should be implemented
+}
+
 DirAccessUnix::DirAccessUnix() {
 
 	dir_stream = 0;
diff --git a/drivers/unix/dir_access_unix.h b/drivers/unix/dir_access_unix.h
index 4da7e42b64..579cb0e798 100644
--- a/drivers/unix/dir_access_unix.h
+++ b/drivers/unix/dir_access_unix.h
@@ -82,6 +82,8 @@ public:
 
 	virtual size_t get_space_left();
 
+	virtual String get_filesystem_type() const;
+
 	DirAccessUnix();
 	~DirAccessUnix();
 };
diff --git a/drivers/unix/file_access_unix.cpp b/drivers/unix/file_access_unix.cpp
index 072ffd96e7..6e045817bc 100644
--- a/drivers/unix/file_access_unix.cpp
+++ b/drivers/unix/file_access_unix.cpp
@@ -246,7 +246,7 @@ void FileAccessUnix::store_8(uint8_t p_dest) {
 
 void FileAccessUnix::store_buffer(const uint8_t *p_src, int p_length) {
 	ERR_FAIL_COND(!f);
-	ERR_FAIL_COND(fwrite(p_src, 1, p_length, f) != p_length);
+	ERR_FAIL_COND((int)fwrite(p_src, 1, p_length, f) != p_length);
 }
 
 bool FileAccessUnix::file_exists(const String &p_path) {
diff --git a/drivers/unix/ip_unix.cpp b/drivers/unix/ip_unix.cpp
index 824ba7bb8a..b5feaabc32 100644
--- a/drivers/unix/ip_unix.cpp
+++ b/drivers/unix/ip_unix.cpp
@@ -50,7 +50,7 @@
 #define _WIN32_WINNT 0x0501 // Windows XP, disable Vista API
 #include <iphlpapi.h>
 #undef _WIN32_WINNT
-#define _WIN32_WINNT 0x0600 // Reenable Vista API
+#define _WIN32_WINNT 0x0600 // Re-enable Vista API
 #else
 #include <iphlpapi.h>
 #endif // MINGW hack
diff --git a/drivers/unix/net_socket_posix.cpp b/drivers/unix/net_socket_posix.cpp
index 6910abc64c..2dffa083fe 100644
--- a/drivers/unix/net_socket_posix.cpp
+++ b/drivers/unix/net_socket_posix.cpp
@@ -543,7 +543,7 @@ void NetSocketPosix::set_blocking_enabled(bool p_enabled) {
 
 void NetSocketPosix::set_ipv6_only_enabled(bool p_enabled) {
 	ERR_FAIL_COND(!is_open());
-	// This option is only avaiable in IPv6 sockets.
+	// This option is only available in IPv6 sockets.
 	ERR_FAIL_COND(_ip_type == IP::TYPE_IPV4);
 
 	int par = p_enabled ? 1 : 0;
diff --git a/drivers/unix/os_unix.cpp b/drivers/unix/os_unix.cpp
index ce1c183242..2778590658 100644
--- a/drivers/unix/os_unix.cpp
+++ b/drivers/unix/os_unix.cpp
@@ -108,6 +108,7 @@ void OS_Unix::initialize_debugging() {
 
 	if (ScriptDebugger::get_singleton() != NULL) {
 		struct sigaction action;
+		memset(&action, 0, sizeof(action));
 		action.sa_handler = handle_interrupt;
 		sigaction(SIGINT, &action, NULL);
 	}
@@ -282,7 +283,7 @@ uint64_t OS_Unix::get_ticks_usec() const {
 	uint64_t longtime = mach_absolute_time() * _clock_scale;
 #else
 	// Unchecked return. Static analyzers might complain.
-	// If _setup_clock() succeded, we assume clock_gettime() works.
+	// If _setup_clock() succeeded, we assume clock_gettime() works.
 	struct timespec tv_now = { 0, 0 };
 	clock_gettime(GODOT_CLOCK, &tv_now);
 	uint64_t longtime = ((uint64_t)tv_now.tv_nsec / 1000L) + (uint64_t)tv_now.tv_sec * 1000000L;
@@ -469,6 +470,11 @@ String OS_Unix::get_environment(const String &p_var) const {
 	return "";
 }
 
+bool OS_Unix::set_environment(const String &p_var, const String &p_value) const {
+
+	return setenv(p_var.utf8().get_data(), p_value.utf8().get_data(), /* overwrite: */ true) == 0;
+}
+
 int OS_Unix::get_processor_count() const {
 
 	return sysconf(_SC_NPROCESSORS_CONF);
diff --git a/drivers/unix/os_unix.h b/drivers/unix/os_unix.h
index 2a23da6f28..09ab4aa1d8 100644
--- a/drivers/unix/os_unix.h
+++ b/drivers/unix/os_unix.h
@@ -95,6 +95,7 @@ public:
 
 	virtual bool has_environment(const String &p_var) const;
 	virtual String get_environment(const String &p_var) const;
+	virtual bool set_environment(const String &p_var, const String &p_value) const;
 	virtual String get_locale() const;
 
 	virtual int get_processor_count() const;
diff --git a/drivers/unix/syslog_logger.h b/drivers/unix/syslog_logger.h
index 5cfe3964f6..49a34dacc3 100644
--- a/drivers/unix/syslog_logger.h
+++ b/drivers/unix/syslog_logger.h
@@ -37,7 +37,7 @@
 
 class SyslogLogger : public Logger {
 public:
-	virtual void logv(const char *p_format, va_list p_list, bool p_err);
+	virtual void logv(const char *p_format, va_list p_list, bool p_err) _PRINTF_FORMAT_ATTRIBUTE_2_0;
 	virtual void print_error(const char *p_function, const char *p_file, int p_line, const char *p_code, const char *p_rationale, ErrorType p_type);
 
 	virtual ~SyslogLogger();
diff --git a/drivers/unix/thread_posix.cpp b/drivers/unix/thread_posix.cpp
index a81292d4a2..ef3f5fb49c 100644
--- a/drivers/unix/thread_posix.cpp
+++ b/drivers/unix/thread_posix.cpp
@@ -40,9 +40,13 @@
 #include "core/os/memory.h"
 #include "core/safe_refcount.h"
 
+static void _thread_id_key_destr_callback(void *p_value) {
+	memdelete(static_cast<Thread::ID *>(p_value));
+}
+
 static pthread_key_t _create_thread_id_key() {
 	pthread_key_t key;
-	pthread_key_create(&key, NULL);
+	pthread_key_create(&key, &_thread_id_key_destr_callback);
 	return key;
 }
 
@@ -63,7 +67,7 @@ void *ThreadPosix::thread_callback(void *userdata) {
 
 	ThreadPosix *t = reinterpret_cast<ThreadPosix *>(userdata);
 	t->id = atomic_increment(&next_thread_id);
-	pthread_setspecific(thread_id_key, (void *)t->id);
+	pthread_setspecific(thread_id_key, (void *)memnew(ID(t->id)));
 
 	ScriptServer::thread_enter(); //scripts may need to attach a stack
 
@@ -89,7 +93,14 @@ Thread *ThreadPosix::create_func_posix(ThreadCreateCallback p_callback, void *p_
 }
 Thread::ID ThreadPosix::get_thread_id_func_posix() {
 
-	return (ID)pthread_getspecific(thread_id_key);
+	void *value = pthread_getspecific(thread_id_key);
+
+	if (value)
+		return *static_cast<ID *>(value);
+
+	ID new_id = atomic_increment(&next_thread_id);
+	pthread_setspecific(thread_id_key, (void *)memnew(ID(new_id)));
+	return new_id;
 }
 void ThreadPosix::wait_to_finish_func_posix(Thread *p_thread) {