Also check for dmalloc.h

svn:r3510

configure.in

@@ -228,6 +228,7 @@ fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
 )
 
 if [[ $dmalloc -eq 1 ]]; then
+  AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
   AC_SEARCH_LIBS(dmalloc_malloc, [dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
   AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
   AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])