diff -up libgcrypt-1.8.0/tests/t-secmem.c.build libgcrypt-1.8.0/tests/t-secmem.c
--- libgcrypt-1.8.0/tests/t-secmem.c.build	2017-01-18 15:24:25.000000000 +0100
+++ libgcrypt-1.8.0/tests/t-secmem.c	2017-08-16 15:12:48.948224849 +0200
@@ -25,6 +25,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
+#include <unistd.h>
 
 #define PGM "t-secmem"
 
@@ -37,17 +38,21 @@ test_secmem (void)
 {
   void *a[28];
   void *b;
+  long oversize;
   int i;
 
   memset (a, 0, sizeof a);
 
+  oversize = sysconf (_SC_PAGESIZE);
+  oversize = oversize <= 16384 ? 2048 : oversize - (16384 - 2048);
+
   /* Allocating 28*512=14k should work in the default 16k pool even
    * with extrem alignment requirements.  */
   for (i=0; i < DIM(a); i++)
     a[i] = gcry_xmalloc_secure (512);
 
   /* Allocating another 2k should fail for the default 16k pool.  */
-  b = gcry_malloc_secure (2048);
+  b = gcry_malloc_secure (oversize);
   if (b)
     fail ("allocation did not fail as expected\n");