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-rw-r--r--include/osmocom/core/endian.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/include/osmocom/core/endian.h b/include/osmocom/core/endian.h
index ae133c39..621f34e2 100644
--- a/include/osmocom/core/endian.h
+++ b/include/osmocom/core/endian.h
@@ -34,7 +34,7 @@
#else
#error "Unknown endian"
#endif
-#else
+#elif defined(__linux__)
#include <endian.h>
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define OSMO_IS_LITTLE_ENDIAN 1
@@ -45,5 +45,17 @@
#else
#error "Unknown endian"
#endif
+#else
+ /* let's try to rely on the compiler. GCC and CLANG/LLVM seem
+ * to support this ... */
+ #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ #define OSMO_IS_LITTLE_ENDIAN 1
+ #define OSMO_IS_BIG_ENDIAN 0
+ #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+ #define OSMO_IS_LITTLE_ENDIAN 0
+ #define OSMO_IS_BIG_ENDIAN 1
+ #else
+ #error "Unknown endian"
+ #endif
#endif