[PROTON-2473] Deprecation warnings when compiling Proton with OpenSSL 3

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: proton-c-0.37.0
• Component/s: build, proton-c
• Assignee: Unassigned
• Reporter: Jiri Daněk
• Created: 03/Dec/21 12:11
• Updated: 01/Nov/22 15:51

Description

OpenSSL 3 has deprecated some parts of the API

Workaround: -Wno-error=deprecated-declarations in CFLAGS, or -DENABLE_WARNING_ERROR=OFF for CMake

https://app.travis-ci.com/github/apache/qpid-dispatch/jobs/550747365#L1052

[ 32%] Building C object c/CMakeFiles/qpid-proton-core-objects.dir/src/ssl/openssl.c.o
/Users/travis/build/apache/qpid-dispatch/qpid-proton/c/src/ssl/openssl.c:398:12: warning: 
      'DH_new' is deprecated [-Wdeprecated-declarations]
  DH *dh = DH_new();
           ^
/opt/local/libexec/openssl3/include/openssl/dh.h:199:1: note: 'DH_new' has been
      explicitly marked deprecated here
OSSL_DEPRECATEDIN_3_0 DH *DH_new(void);
^
/opt/local/libexec/openssl3/include/openssl/macros.h:182:49: note: expanded from
      macro 'OSSL_DEPRECATEDIN_3_0'
#   define OSSL_DEPRECATEDIN_3_0                OSSL_DEPRECATED(3.0)
                                                ^
/opt/local/libexec/openssl3/include/openssl/macros.h:62:52: note: expanded from
      macro 'OSSL_DEPRECATED'
#     define OSSL_DEPRECATED(since) __attribute__((deprecated))
                                                   ^
/Users/travis/build/apache/qpid-dispatch/qpid-proton/c/src/ssl/openssl.c:406:11: warning: 
      'DH_set0_pqg' is deprecated [-Wdeprecated-declarations]
      || !DH_set0_pqg(dh, dhp_bn, NULL, dhg_bn)) {
          ^
/opt/local/libexec/openssl3/include/openssl/dh.h:255:1: note: 'DH_set0_pqg' has
      been explicitly marked deprecated here
OSSL_DEPRECATEDIN_3_0 int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g);
^
/opt/local/libexec/openssl3/include/openssl/macros.h:182:49: note: expanded from
      macro 'OSSL_DEPRECATEDIN_3_0'
#   define OSSL_DEPRECATEDIN_3_0                OSSL_DEPRECATED(3.0)
                                                ^
/opt/local/libexec/openssl3/include/openssl/macros.h:62:52: note: expanded from
      macro 'OSSL_DEPRECATED'
#     define OSSL_DEPRECATED(since) __attribute__((deprecated))
                                                   ^
/Users/travis/build/apache/qpid-dispatch/qpid-proton/c/src/ssl/openssl.c:407:5: warning: 
      'DH_free' is deprecated [-Wdeprecated-declarations]
    DH_free(dh);
    ^
/opt/local/libexec/openssl3/include/openssl/dh.h:200:1: note: 'DH_free' has been
      explicitly marked deprecated here
OSSL_DEPRECATEDIN_3_0 void DH_free(DH *dh);
^
/opt/local/libexec/openssl3/include/openssl/macros.h:182:49: note: expanded from
      macro 'OSSL_DEPRECATEDIN_3_0'
#   define OSSL_DEPRECATEDIN_3_0                OSSL_DEPRECATED(3.0)
                                                ^
/opt/local/libexec/openssl3/include/openssl/macros.h:62:52: note: expanded from
      macro 'OSSL_DEPRECATED'
#     define OSSL_DEPRECATED(since) __attribute__((deprecated))
                                                   ^
/Users/travis/build/apache/qpid-dispatch/qpid-proton/c/src/ssl/openssl.c:548:5: warning: 
      'DH_free' is deprecated [-Wdeprecated-declarations]
    DH_free(dh);
    ^
/opt/local/libexec/openssl3/include/openssl/dh.h:200:1: note: 'DH_free' has been
      explicitly marked deprecated here
OSSL_DEPRECATEDIN_3_0 void DH_free(DH *dh);
^
/opt/local/libexec/openssl3/include/openssl/macros.h:182:49: note: expanded from
      macro 'OSSL_DEPRECATEDIN_3_0'
#   define OSSL_DEPRECATEDIN_3_0                OSSL_DEPRECATED(3.0)
                                                ^
/opt/local/libexec/openssl3/include/openssl/macros.h:62:52: note: expanded from
      macro 'OSSL_DEPRECATED'
#     define OSSL_DEPRECATED(since) __attribute__((deprecated))
                                                   ^
4 warnings generated.

Issue Links

• is related to: PROTON-2544 Build fails on Fedora 36 + Ubuntu 22.04