patch: making tclspeak.cpp more portable

[Jarek Czekalski <jarekczek@xxxxxxxxxxx>]

Removed unused include "dlfcn.h".
Replaced one remaining strdup call with an equivalent call to strcpy, 
which is more portable. strdup is present only on Posix systems, it is 
not part of C library.

Index: servers/linux-espeak/tclespeak.cpp
===================================================================
--- servers/linux-espeak/tclespeak.cpp	(revision 8407)
+++ servers/linux-espeak/tclespeak.cpp	(working copy)
@@ -36,7 +36,6 @@
 //<includes
 
 #include <sys/time.h>
-#include <dlfcn.h>
 #include <tcl.h>
 #include <string.h>
 #include <stdlib.h>
@@ -246,7 +245,8 @@
 
 static bool closeTags(string input, string& output)
 {
-  char* tag_orig = strdup(input.c_str());
+  char* tag_orig = (char*)malloc(sizeof(char) * (input.size()+1));
+  strcpy(tag_orig, input.c_str());
   output = "";
 
   // check that a text (non whitespace) is present