Avoid conflict with host definitions when cross-compiling

Certain platforms (e. g. BSD-based ones) define some ELF constants
according to host. This patch fixes problems with cross-building
Linux kernel on these platforms (e. g. building ARM 32-bit version
on x86-64 host).

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Michal Marek <mmarek@suse.com>

diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 168b43dc0a59b6be4edea0fc5768fb2d63cfa440..6a5e1515123b3b0e38a2036726e890e76d44cf48 100644 (file)
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -11,6 +11,12 @@
 
 #include "elfconfig.h"
 
+/* On BSD-alike OSes elf.h defines these according to host's word size */
+#undef ELF_ST_BIND
+#undef ELF_ST_TYPE
+#undef ELF_R_SYM
+#undef ELF_R_TYPE
+
 #if KERNEL_ELFCLASS == ELFCLASS32
 
 #define Elf_Ehdr    Elf32_Ehdr