1 files changed, 50 insertions, 0 deletions
diff --git a/package/f2fs-tools/0005-configure-add-check-for-bswap_64.patch b/package/f2fs-tools/0005-configure-add-check-for-bswap_64.patch
new file mode 100644
index 0000000000..8523f02e65
--- /dev/null
+++ b/package/f2fs-tools/0005-configure-add-check-for-bswap_64.patch
@@ -0,0 +1,50 @@
+From e436e40b57125472ba732a5d39407ff52f008f52 Mon Sep 17 00:00:00 2001
+From: "Yann E. MORIN" <yann.morin.1998@free.fr>
+Date: Thu, 25 Dec 2014 18:52:00 +0100
+Subject: [PATCH] configure: add check for bswap_64
+
+include/f2fs_fs.h checks the HAVE_BSWAP_64 conidtional, but configure
+nevers checks for it.
+
+Add a check that the function is indeed declared, and fix the variable
+name to match the naming scheme of autoconf (and not those of WAF like
+is used by samba), and adapt the check as suggested in the autoconf
+manual.
+
+Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
+Cc: Gustavo Zacarias <gustavo@zacarias.com.ar>
+---
+ configure.ac      | 3 +++
+ include/f2fs_fs.h | 2 +-
+ 2 files changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/configure.ac b/configure.ac
+index 7cfd9b4..ae451b8 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -72,6 +72,9 @@ AC_CHECK_FUNCS_ONCE([
+ 	memset
+ ])
+ 
++AS_IF([test "$ac_cv_header_byteswap_h" = "yes"],
++      [AC_CHECK_DECLS([bswap_64],,,[#include <byteswap.h>])])
++
+ # Install directories
+ AC_PREFIX_DEFAULT([/usr])
+ AC_SUBST([sbindir], [/sbin])
+diff --git a/include/f2fs_fs.h b/include/f2fs_fs.h
+index 0c3ba04..4dc2426 100644
+--- a/include/f2fs_fs.h
++++ b/include/f2fs_fs.h
+@@ -63,7 +63,7 @@ static inline uint32_t bswap_32(uint32_t val)
+ }
+ #endif /* !HAVE_BYTESWAP_H */
+ 
+-#if !HAVE_BSWAP_64
++#if defined HAVE_DECL_BSWAP_64 && !HAVE_DECL_BSWAP_64
+ /**
+  * bswap_64 - reverse bytes in a uint64_t value.
+  * @val: value whose bytes to swap.
+-- 
+1.9.1
+