Description of problem:
/usr/lib64/apr-1/build/libtool --silent --mode=compile gcc -prefer-pic -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic  -DLINUX -D_REENTRANT -D_GNU_SOURCE -pthread -I/usr/include/httpd  -I/usr/include/apr-1   -I/usr/include/apr-1  -DNAMEVER="mod_auth_openidc-1.8.10.1"  -Wall -g  -c -o src/jose/apr_jwk.lo src/jose/apr_jwk.c && touch src/jose/apr_jwk.slo
In file included from /usr/include/openssl/asn1.h:24:0,
                 from /usr/include/openssl/objects.h:916,
                 from /usr/include/openssl/evp.h:27,
                 from /usr/include/openssl/pem.h:16,
                 from src/jose/apr_jwk.c:53:
src/jose/apr_jwk.c: In function 'apr_jwk_rsa_bio_to_key':
src/jose/apr_jwk.c:157:37: error: dereferencing pointer to incomplete type 'RSA {aka struct rsa_st}'
  key->modulus_len = BN_num_bytes(rsa->n);
                                     ^
apxs:Error: Command failed with rc=65536