don't bother with don't need when there is neither madvise not fadvise calls

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1404 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/src/rrd_open.c b/src/rrd_open.c
index c0e483591c8c9f8d76eff1070501a91822966f83..e92ae5d1b89f7abecf7b25ebd078f29cabe6ce97 100644 (file)
--- a/src/rrd_open.c
+++ b/src/rrd_open.c
@@ -34,10 +34,11 @@
 #endif
 
 /* get the address of the start of this page */
+#if defined USE_MADVISE || defined HAVE_POSIX_FADVISE 
 #ifndef PAGE_START
 #define PAGE_START(addr) ((addr)&(~(_page_size-1)))
 #endif
-
+#endif
 
 /* Open a database file, return its header and an open filehandle,
  * positioned to the first cdp in the first rra.
@@ -316,6 +317,7 @@ void rrd_dontneed(
     rrd_file_t *rrd_file,
     rrd_t *rrd)
 {
+#if defined USE_MADVISE || defined HAVE_POSIX_FADVISE
     unsigned long dontneed_start;
     unsigned long rra_start;
     unsigned long active_block;
@@ -369,8 +371,13 @@ void rrd_dontneed(
 #if defined DEBUG && DEBUG > 1
     mincore_print(rrd_file, "after");
 #endif
+#endif /* without madvise and posix_fadvise ist does not make much sense todo anything */
 }
 
+
+
+
+
 int rrd_close(
     rrd_file_t *rrd_file)
 {