Endianess check for convert functions seems not to work properly

[axel-he]

The function uint32_to_le/uint32_to_le shall convert an integer value to little endian or from little endian. But it seems that the endianess check seems a bit weak. When cross compiled for a big endian target, the check mentioned above has not detected the targets big endianess.

protobuf-c-rpc/protobuf-c-rpc/protobuf-c-rpc-client.c

Line 438 in 44f1e87

#if !defined(WORDS_BIGENDIAN)

protobuf-c-rpc/protobuf-c-rpc/protobuf-c-rpc-server.c

Line 283 in 44f1e87

#if !defined(WORDS_BIGENDIAN)