1 files changed, 4 insertions, 2 deletions

diff --git a/arch/um/os-Linux/elf_aux.c b/arch/um/os-Linux/elf_aux.c
index 1399520a8588..ab33cb3c74ec 100644
--- a/arch/um/os-Linux/elf_aux.c
+++ b/arch/um/os-Linux/elf_aux.c
@@ -14,7 +14,8 @@
 #include "mem_user.h"
 #include <kernel-offsets.h>
 
-#if HOST_ELF_CLASS == ELFCLASS32
+/* Use the one from the kernel - the host may miss it, if having old headers. */
+#if UM_ELF_CLASS == UM_ELFCLASS32
 typedef Elf32_auxv_t elf_auxv_t;
 #else
 typedef Elf64_auxv_t elf_auxv_t;
@@ -54,7 +55,8 @@ __init void scan_elf_aux( char **envp)
                                  * a_un, so we have to use a_val, which is
                                  * all that's left.
                                  */
-                                elf_aux_platform = (char *) auxv->a_un.a_val;
+                                elf_aux_platform =
+                                        (char *) (long) auxv->a_un.a_val;
                                 break;
                         case AT_PAGESZ:
                                 page_size = auxv->a_un.a_val;