diff -r fb8a14647f4d -r 48852e88d506 tools/libxc/xc_dom_bzimageloader.c
--- a/tools/libxc/xc_dom_bzimageloader.c
+++ b/tools/libxc/xc_dom_bzimageloader.c
@@ -144,7 +144,11 @@ static uint64_t physmem(void)
 {
     uint64_t ret = 0;
     const long pagesize = sysconf(_SC_PAGESIZE);
+#ifdef _SC_PHYS_PAGES
     const long pages = sysconf(_SC_PHYS_PAGES);
+#else
+    const long pages = -1;
+#endif
 
     if ( (pagesize != -1) || (pages != -1) )
     {