Bug#29414 HPUX build fails - 'noinst_HEADERS' does not exist

sql/Makefile.am:
  Avoid "noinst_HEADERS" being sucked into mysql_LDADD 
  target if @MYSQLD_EXTRA_IBS@ are empty

sql/Makefile.am

@@ -43,8 +43,7 @@ mysqld_LDADD =		@MYSQLD_EXTRA_LDFLAGS@ \
                         @innodb_system_libs@ \
 			@ndbcluster_libs@ @ndbcluster_system_libs@ \
 			$(LDADD)  $(CXXLDFLAGS) $(WRAPLIBS) @LIBDL@ \
-			$(yassl_libs) $(openssl_libs) \
-			@MYSQLD_EXTRA_LIBS@
+			$(yassl_libs) $(openssl_libs) @MYSQLD_EXTRA_LIBS@
 
 noinst_HEADERS =	item.h item_func.h item_sum.h item_cmpfunc.h \
 			item_strfunc.h item_timefunc.h item_uniq.h \