On 23/07/2015 10:47, Song Geng wrote:
Hi guys,
I am a novice about openssl. I encounter linker error when I try to
compile evp demos which locate openssl/demos/evp.
My computer info is:
Darwin Kernel Version 14.4.0: Thu May 28 11:35:04 PDT 2015;
root:xnu-2782.30.5~1/RELEASE_X86_64
And I use both gcc and clang with command “cc -g -Wall -I../../include
-lcrypto aesgcm.c" to compile the source code.
The error info shows:
Undefined symbols for architecture x86_64:
"_EVP_aes_256_gcm", referenced from:
_aes_gcm_encrypt in aesgcm-093314.o
_aes_gcm_decrypt in aesgcm-093314.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
Please help me. I will be very appreciate.
Try adding a compiler option to also take libraries
from the local copy of OpenSSL (I assume you did
build OpenSSL itself first).
Without such an option, you might be accidentally
linking against a too old libcrypto from Apple.
Enjoy
Jakob
--
Jakob Bohm, CIO, Partner, WiseMo A/S. http://www.wisemo.com
Transformervej 29, 2860 Søborg, Denmark. Direct +45 31 13 16 10
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