diff options
| author | Harald Welte <laforge@gnumonks.org> | 2017-05-15 11:44:39 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2017-05-15 13:01:01 +0200 |
| commit | 054667fe15434e7e467311c7213b50f849aecc79 (patch) | |
| tree | 8b43e8441d73fec119dee80025cf38c510440dd6 /include | |
| parent | b93ce5afec0a79068afa12718755724b6cc91db0 (diff) | |
endian.h: Make it work on 'bare iron' builds (and possibly more platforms)
We can use __BYTE_ORDER__ which seems to be defined by both gcc and
clang/llvm.
Change-Id: Id6821c99e88242126d9697099b1dd92c6212526a
Diffstat (limited to 'include')
| -rw-r--r-- | include/osmocom/core/endian.h | 14 |
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 |