diff options
Diffstat (limited to 'Utilities/cmlibarchive/libarchive/archive_hmac.c')
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/archive_hmac.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_hmac.c b/Utilities/cmlibarchive/libarchive/archive_hmac.c index 36e3e1c6fd..7857c0ff35 100644 --- a/Utilities/cmlibarchive/libarchive/archive_hmac.c +++ b/Utilities/cmlibarchive/libarchive/archive_hmac.c @@ -31,6 +31,20 @@ #include "archive.h" #include "archive_hmac_private.h" +/* + * On systems that do not support any recognized crypto libraries, + * the archive_hmac.c file is expected to define no usable symbols. + * + * But some compilers and linkers choke on empty object files, so + * define a public symbol that will always exist. This could + * be removed someday if this file gains another always-present + * symbol definition. + */ +int __libarchive_hmac_build_hack(void) { + return 0; +} + + #ifdef ARCHIVE_HMAC_USE_Apple_CommonCrypto static int @@ -129,7 +143,7 @@ __hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx) } } -#elif defined(HAVE_LIBNETTLE) +#elif defined(HAVE_LIBNETTLE) && defined(HAVE_NETTLE_HMAC_H) static int __hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len) |