Fix a deadlock when Run() to create a process. Child forked will inherit

state of global mutex which may be in intermidiate taken status by one of
threads of the parent, then in child process it tries to get this mutex
and is always pending. One example of mutex is malloc_lock, and there are more.

src/Mayaqua/Unix.c

@@ -1162,7 +1162,9 @@ bool UnixRunW(wchar_t *filename, wchar_t *arg, bool hide, bool wait)
 bool UnixRun(char *filename, char *arg, bool hide, bool wait)
 {
 	TOKEN_LIST *t;
+	char **args;
 	UINT ret;
+
 	// Validate arguments
 	if (filename == NULL)
 	{
@@ -1173,6 +1175,25 @@ bool UnixRun(char *filename, char *arg, bool hide, bool wait)
 		arg = "";
 	}
 
+	Print("", filename, arg);
+	t = ParseToken(arg, " ");
+	if (t == NULL)
+	{
+		return false;
+	}
+	else
+	{
+		UINT num_args;
+		UINT i;
+		num_args = t->NumTokens + 2;
+		args = ZeroMalloc(sizeof(char *) * num_args);
+		args[0] = filename;
+		for (i = 1;i < num_args - 1;i++)
+		{
+			args[i] = t->Token[i - 1];
+		}
+	}
+	
 	// Create a child process
 	ret = fork();
 	if (ret == -1)
@@ -1183,39 +1204,21 @@ bool UnixRun(char *filename, char *arg, bool hide, bool wait)
 
 	if (ret == 0)
 	{
-		Print("", filename, arg);
 		// Child process
 		if (hide)
 		{
 			// Close the standard I/O
 			UnixCloseIO();
 		}
-
+		execvp(filename, args);
-		t = ParseToken(arg, " ");
+		AbortExit();
-		if (t == NULL)
-		{
-			AbortExit();
-		}
-		else
-		{
-			char **args;
-			UINT num_args;
-			UINT i;
-			num_args = t->NumTokens + 2;
-			args = ZeroMalloc(sizeof(char *) * num_args);
-			args[0] = filename;
-			for (i = 1;i < num_args - 1;i++)
-			{
-				args[i] = t->Token[i - 1];
-			}
-			execvp(filename, args);
-			AbortExit();
-		}
 	}
 	else
 	{
 		// Parent process
 		pid_t pid = (pid_t)ret;
+		Free(args);
+		FreeToken(t);
 
 		if (wait)
 		{