[svn-r12870] Add a new macro H5_HAVE_DIRECT_ALIGN in configure.in. Some systems like copper and sleipnir

doesn't require alignment for Direct I/O.  If this's true, write or read data just like sec2
does.

1 files changed, 6 insertions, 0 deletions

diff --git a/test/vfd.c b/test/vfd.c
index fdd710d..c8b67f7 100644
--- a/test/vfd.c
+++ b/test/vfd.c
@@ -214,6 +214,7 @@ test_direct(void)
     if(file_size<1*KB || file_size>4*KB)
         TEST_ERROR;
 
+#ifdef H5_HAVE_DIRECT_ALIGN
     /* Allocate aligned memory for data set 1. For data set 1, everything is aligned including
      * memory address, size of data, and file address. */
     if(posix_memalign(&points, (size_t)FBSIZE, (size_t)(DSET1_DIM1*DSET1_DIM2*sizeof(int)))!=0)
@@ -221,6 +222,11 @@ test_direct(void)
 
     if(posix_memalign(&check, (size_t)FBSIZE, (size_t)(DSET1_DIM1*DSET1_DIM2*sizeof(int)))!=0)
         TEST_ERROR;
+#else
+    /* Allocate aligned memory for data set 1. No need for alignment. */
+    points=(int*)malloc(DSET1_DIM1*DSET1_DIM2*sizeof(int));
+    check=(int*)malloc(DSET1_DIM1*DSET1_DIM2*sizeof(int));
+#endif
 
     /* Initialize the dset1 */
     p1 = points;