goto err;
/* Allocate space for heap, and two extra pages as guards */
-#ifdef _SC_PAGE_SIZE
- pgsize = (size_t)sysconf(_SC_PAGE_SIZE);
+#if defined(_SC_PAGE_SIZE) || defined (_SC_PAGESIZE)
+ {
+# if defined(_SC_PAGE_SIZE)
+ long tmppgsize = sysconf(_SC_PAGE_SIZE);
+# else
+ long tmppgsize = sysconf(_SC_PAGESIZE);
+# endif
+ if (tmppgsize < 1)
+ pgsize = PAGE_SIZE;
+ else
+ pgsize = (size_t)tmppgsize;
+ }
#else
pgsize = PAGE_SIZE;
#endif