undefined reference errors when cross-compiling with openssl library

Question

The target is a beaglebone black running debian

The host is a PC running Ubuntu 13.04

I have code that compiles OK on the target.

gcc main.c -lssl

On the host I am using the linaro gcc compiler.

CC=gcc-linaro-arm-linux-gnueabihf-4.8-2013.07-1_linux/bin/arm-linux-gnueabihf-gcc

If I copy /usr/lib/arm-linux-gnueabihf/libssl.so from the target to myLibs on the host,then try

 $CC main.c -L /myLibs/ -lssl

I get:

main.c:(.text+0x54): undefined reference to `SHA256_Init'

main.c:(.text+0x96): undefined reference to `SHA256_Update'

main.c:(.text+0xc8): undefined reference to `SHA256_Final'

libssl.so: undefined reference to `BIO_pop@OPENSSL_1.0.0'

What am I doing wrong?

R C R C · Accepted Answer · 2013-10-09T14:51:52

I copied libcrypto.so and libz.so from the target to the host. Now $CC main.c -L /myLibs/ -lssl -lcrypto -lz

terminates with no errors.

undefined reference errors when cross-compiling with openssl library

1 Answers