Android: Fix for compilation error in clucene.

Android only provide stubs for wcstoll(3) and wctomb(3), to solve this
wcstoll(3) is replace by an internal equvialent, and wctomb(3) by
wcrtomb(3).

Change-Id: Ic30e5a809c2f6ab30b4e52883d3aae3ecc036194
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>

src/assistant/3rdparty/clucene/src/CLucene/config/repl_tprintf.cpp

@@ -100,7 +100,11 @@ void lucene_vfnwprintf(StringBuffer* buffer, size_t count, const wchar_t * forma
 		size_t v;
 		size_t len = tmp->length();
 		for (size_t i=0;i<len;i++){
+#if !defined(__ANDROID__) && !defined(ANDROID)
 			v = wctomb(ob,*pointer);
+#else
+			v = wcrtomb(ob,*pointer,0);
+#endif // __ANDROID__
 			if ( v > 0 ){
 				ob[v]='\0';
 				fputs(ob,stdout);

src/assistant/clucene/qclucene-config_p.h

@@ -416,7 +416,7 @@ configure.
 #define _CL_HAVE_WCSTOD  1
 #endif
 
-#if !defined(__SUNPRO_CC) && !defined(__SUNPRO_C) && !defined(__HP_aCC)
+#if !defined(__SUNPRO_CC) && !defined(__SUNPRO_C) && !defined(__HP_aCC) && !defined(Q_OS_ANDROID)
     /* Define to 1 if you have the `wcstoll' function. */
 #   ifndef _CL_HAVE_WCSTOLL
 #   define _CL_HAVE_WCSTOLL  1