Content of RPM nettle-devel-2.2-1.el5.rf.x86_64.rpm :
/usr/include/nettle
/usr/include/nettle/aes.h
/usr/include/nettle/arcfour.h
/usr/include/nettle/arctwo.h
/usr/include/nettle/asn1.h
/usr/include/nettle/base16.h
/usr/include/nettle/base64.h
/usr/include/nettle/bignum.h
/usr/include/nettle/blowfish.h
/usr/include/nettle/buffer.h
/usr/include/nettle/camellia.h
/usr/include/nettle/cast128.h
/usr/include/nettle/cbc.h
/usr/include/nettle/ctr.h
/usr/include/nettle/des-compat.h
/usr/include/nettle/des.h
/usr/include/nettle/dsa.h
/usr/include/nettle/gcm.h
/usr/include/nettle/hmac.h
/usr/include/nettle/knuth-lfib.h
/usr/include/nettle/macros.h
/usr/include/nettle/md2.h
/usr/include/nettle/md4.h
/usr/include/nettle/md5-compat.h
/usr/include/nettle/md5.h
/usr/include/nettle/memxor.h
/usr/include/nettle/nettle-meta.h
/usr/include/nettle/nettle-stdint.h
/usr/include/nettle/nettle-types.h
/usr/include/nettle/pgp.h
/usr/include/nettle/pkcs1.h
/usr/include/nettle/realloc.h
/usr/include/nettle/rsa-compat.h
/usr/include/nettle/rsa.h
/usr/include/nettle/serpent.h
/usr/include/nettle/sexp.h
/usr/include/nettle/sha.h
/usr/include/nettle/twofish.h
/usr/include/nettle/yarrow.h
/usr/lib64/libhogweed.so
/usr/lib64/libnettle.so