/usr/include/ is in heimdal-dev 1.6~rc2+dfsg-9+deb8u1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/heim_asn1.h
/usr/include/der-protos.h
/usr/include/roken/
/usr/include/hcrypto/
/usr/include/krb5/
/usr/include/gssapi/
/usr/include/kadm5/
/usr/include/krb5-types.h
/usr/include/roken.h
/usr/include/base64.h
/usr/include/getarg.h
/usr/include/hex.h
/usr/include/parse_bytes.h
/usr/include/parse_time.h
/usr/include/parse_units.h
/usr/include/resolve.h
/usr/include/roken-common.h
/usr/include/rtbl.h
/usr/include/xdbm.h
/usr/include/heimbase.h
/usr/include/sl.h
/usr/include/wind.h
/usr/include/wind_err.h
/usr/include/der.h
/usr/include/der-private.h
/usr/include/asn1-common.h
/usr/include/asn1_err.h
/usr/include/krb5_asn1.h
/usr/include/pkinit_asn1.h
/usr/include/cms_asn1.h
/usr/include/rfc2459_asn1.h
/usr/include/pkcs8_asn1.h
/usr/include/pkcs9_asn1.h
/usr/include/pkcs12_asn1.h
/usr/include/digest_asn1.h
/usr/include/kx509_asn1.h
/usr/include/heim-ipc.h
/usr/include/hx509.h
/usr/include/hx509-protos.h
/usr/include/hx509_err.h
/usr/include/ocsp_asn1.h
/usr/include/pkcs10_asn1.h
/usr/include/crmf_asn1.h
/usr/include/krb5.h
/usr/include/krb5-protos.h
/usr/include/krb5_ccapi.h
/usr/include/krb5_err.h
/usr/include/heim_err.h
/usr/include/k524_err.h
/usr/include/heimntlm.h
/usr/include/ntlm_err.h
/usr/include/heimntlm-protos.h
/usr/include/kafs.h
/usr/include/gssapi.h
/usr/include/hdb_err.h
/usr/include/hdb.h
/usr/include/hdb_asn1.h
/usr/include/hdb-protos.h
/usr/include/otp.h
/usr/include/kdc.h
/usr/include/kdc-protos.h
/usr/include/roken/glob.h
/usr/include/roken/vis.h
/usr/include/hcrypto/aes.h
/usr/include/hcrypto/bn.h
/usr/include/hcrypto/des.h
/usr/include/hcrypto/dh.h
/usr/include/hcrypto/dsa.h
/usr/include/hcrypto/ec.h
/usr/include/hcrypto/ecdh.h
/usr/include/hcrypto/ecdsa.h
/usr/include/hcrypto/engine.h
/usr/include/hcrypto/evp.h
/usr/include/hcrypto/evp-hcrypto.h
/usr/include/hcrypto/evp-cc.h
/usr/include/hcrypto/hmac.h
/usr/include/hcrypto/md2.h
/usr/include/hcrypto/md4.h
/usr/include/hcrypto/md5.h
/usr/include/hcrypto/pkcs12.h
/usr/include/hcrypto/rand.h
/usr/include/hcrypto/rc2.h
/usr/include/hcrypto/rc4.h
/usr/include/hcrypto/rsa.h
/usr/include/hcrypto/sha.h
/usr/include/hcrypto/ui.h
/usr/include/krb5/locate_plugin.h
/usr/include/krb5/send_to_kdc_plugin.h
/usr/include/krb5/ccache_plugin.h
/usr/include/krb5/an2ln_plugin.h
/usr/include/krb5/db_plugin.h
/usr/include/krb5/windc_plugin.h
/usr/include/gssapi/gssapi.h
/usr/include/gssapi/gssapi_krb5.h
/usr/include/gssapi/gssapi_ntlm.h
/usr/include/gssapi/gssapi_oid.h
/usr/include/gssapi/gssapi_spnego.h
/usr/include/gssapi/gkrb5_err.h
/usr/include/kadm5/admin.h
/usr/include/kadm5/private.h
/usr/include/kadm5/kadm5-pwcheck.h
/usr/include/kadm5/kadm5-protos.h
/usr/include/kadm5/kadm5-private.h
/usr/include/kadm5/kadm5_err.h