(blind) fix for Tru64 compilation (bug 769360)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42194 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/unix/utilsunx.cpp

@@ -151,9 +151,6 @@
      defined(__osf__) || defined(__EMX__))
     extern "C"
     {
-        #ifdef __SUN__
-            int usleep(unsigned int usec);
-        #else // !Sun
         #ifdef __EMX__
             /* I copied this from the XFree86 diffs. AV. */
             #define INCL_DOSPROCESS
@@ -162,10 +159,9 @@
             {
                 DosSleep(delay ? (delay/1000l) : 1l);
             }
-            #else // !Sun && !EMX
-                void usleep(unsigned long usec);
-            #endif
-        #endif // Sun/EMX/Something else
+        #else // Unix
+            int usleep(unsigned int usec);
+        #endif // __EMX__/Unix
     };
 
     #define HAVE_USLEEP 1