meta-openembedded/meta-oe/recipes-bsp/efivar/efivar/0001-makeguids-Do-not-use-__bswap_constant_-16-32-macros.patch

From dd4291265b7b3d7d7ffa1d8adf32781ae25dbfeb Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sat, 15 Jul 2017 00:29:42 -0700
Subject: [PATCH] makeguids: Do not use __bswap_constant_{16|32} macros

not available on musl

Signed-off-by: Khem Raj <raj.khem@gmail.com>

---
 src/makeguids.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/makeguids.c b/src/makeguids.c
index da2f5f7..daf821a 100644
--- a/src/makeguids.c
+++ b/src/makeguids.c
@@ -155,13 +155,13 @@ main(int argc, char *argv[])
 #if BYTE_ORDER == BIG_ENDIAN\n\
 #define cpu_to_be32(n) (n)\n\
 #define cpu_to_be16(n) (n)\n\
-#define cpu_to_le32(n) (__bswap_constant_32(n))\n\
-#define cpu_to_le16(n) (__bswap_constant_16(n))\n\
+#define cpu_to_le32(n) ((uint32_t) ((n)>>24 | (n)>>8&0xff00 | (n)<<8&0xff0000 | (n)<<24))\n\
+#define cpu_to_le16(n) ((uint16_t) ((n)<<8 | (n)>>8))\n\
 #else\n\
 #define cpu_to_le32(n) (n)\n\
 #define cpu_to_le16(n) (n)\n\
-#define cpu_to_be32(n) (__bswap_constant_32(n))\n\
-#define cpu_to_be16(n) (__bswap_constant_16(n))\n\
+#define cpu_to_be32(n) ((uint32_t) ((n)>>24 | (n)>>8&0xff00 | (n)<<8&0xff0000 | (n)<<24))\n\
+#define cpu_to_be16(n) ((uint16_t) ((n)<<8 | (n)>>8))\n\
 #endif\n\
 """);