dev-db/mysql-connector-c fails to build

[GoldsrcSource]

build.log
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h: In function ‘bool {anonymous}::set_dh(SSL_CTX*)’:
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:264:26: error: ‘NID_ffdhe2048’ was not declared in this scope
264 | dh = DH_new_by_nid(NID_ffdhe2048);
| ^~~~~~~~~~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:264:12: error: ‘DH_new_by_nid’ was not declared in this scope
264 | dh = DH_new_by_nid(NID_ffdhe2048);
| ^~~~~~~~~~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:267:26: error: ‘NID_ffdhe3072’ was not declared in this scope
267 | dh = DH_new_by_nid(NID_ffdhe3072);
| ^~~~~~~~~~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:270:26: error: ‘NID_ffdhe8192’ was not declared in this scope
270 | dh = DH_new_by_nid(NID_ffdhe8192);
| ^~~~~~~~~~~~~

[orbea]

This is the problematic part of include/dh_ecdh_config.h.

#if OPENSSL_VERSION_NUMBER >= 0x10100000L
  switch (security_level) {
    case 1:
      [[fallthrough]];
    case 2:
      dh = DH_new_by_nid(NID_ffdhe2048);
      break;
    case 3:
      dh = DH_new_by_nid(NID_ffdhe3072);
      break;
    case 4:
      dh = DH_new_by_nid(NID_ffdhe8192);
      break;
    case 5:
      /* there is no RFC7919 approved prime for sec level 5 */
      [[fallthrough]];
    default:
      break;
  };
#else  /* OPENSSL_VERSION_NUMBER >= 0x10100000L */
  dh = DH_new();
  if (!dh) return true;

  switch (security_level) {
    case 1:
      [[fallthrough]];
    case 2:
      dh->p =
          BN_bin2bn(rfc7919_ffdhe2048_p, sizeof(rfc7919_ffdhe2048_p), nullptr);
      break;
    case 3:
      dh->p =
          BN_bin2bn(rfc7919_ffdhe3072_p, sizeof(rfc7919_ffdhe3072_p), nullptr);
      break;
    case 4:
      dh->p =
          BN_bin2bn(rfc7919_ffdhe8192_p, sizeof(rfc7919_ffdhe8192_p), nullptr);
      break;
    case 5:
      /* There is no RFC7919 approved prime for sec level 5 */
      [[fallthrough]];
    default:
      DH_free(dh);
      return true;
  };

  dh->g = BN_bin2bn(rfc7919_g, sizeof(rfc7919_g), nullptr);
  if (!dh->p || !dh->g) {
    DH_free(dh);
    return true;
  }
#endif /* OPENSSL_VERSION_NUMBER >= 0x10100000L */

However taking the other code path also fails.

--- a/include/dh_ecdh_config.h.orig
+++ b/include/dh_ecdh_config.h
@@ -256,7 +256,7 @@
 #else /* OPENSSL_VERSION_NUMBER >= 0x30000000L */
 
   DH *dh = nullptr;
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
   switch (security_level) {
     case 1:
       [[fallthrough]];

/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h: In function ‘bool {anonymous}::set_dh(SSL_CTX*)’:
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:286:9: error: invalid use of incomplete type ‘DH’ {aka ‘struct dh_st’}
  286 |       dh->p =
      |         ^~
In file included from /usr/include/openssl/evp.h:64,
                 from /var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/sql/stream_cipher.h:26,
                 from /var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/my_sys.h:73,
                 from /var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/vio/vio_priv.h:35,
                 from /var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/vio/viosslfactories.cc:41:
/usr/include/openssl/ossl_typ.h:130:16: note: forward declaration of ‘DH’ {aka ‘struct dh_st’}
  130 | typedef struct dh_st DH;
      |                ^~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:287:21: error: ‘rfc7919_ffdhe2048_p’ was not declared in this scope
  287 |           BN_bin2bn(rfc7919_ffdhe2048_p, sizeof(rfc7919_ffdhe2048_p), nullptr);
      |                     ^~~~~~~~~~~~~~~~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:290:9: error: invalid use of incomplete type ‘DH’ {aka ‘struct dh_st’}
  290 |       dh->p =
      |         ^~
/usr/include/openssl/ossl_typ.h:130:16: note: forward declaration of ‘DH’ {aka ‘struct dh_st’}
  130 | typedef struct dh_st DH;
      |                ^~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:291:21: error: ‘rfc7919_ffdhe3072_p’ was not declared in this scope
  291 |           BN_bin2bn(rfc7919_ffdhe3072_p, sizeof(rfc7919_ffdhe3072_p), nullptr);
      |                     ^~~~~~~~~~~~~~~~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:294:9: error: invalid use of incomplete type ‘DH’ {aka ‘struct dh_st’}
  294 |       dh->p =
      |         ^~
/usr/include/openssl/ossl_typ.h:130:16: note: forward declaration of ‘DH’ {aka ‘struct dh_st’}
  130 | typedef struct dh_st DH;
      |                ^~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:295:21: error: ‘rfc7919_ffdhe8192_p’ was not declared in this scope
  295 |           BN_bin2bn(rfc7919_ffdhe8192_p, sizeof(rfc7919_ffdhe8192_p), nullptr);
      |                     ^~~~~~~~~~~~~~~~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:305:5: error: invalid use of incomplete type ‘DH’ {aka ‘struct dh_st’}
  305 |   dh->g = BN_bin2bn(rfc7919_g, sizeof(rfc7919_g), nullptr);
      |     ^~
/usr/include/openssl/ossl_typ.h:130:16: note: forward declaration of ‘DH’ {aka ‘struct dh_st’}
  130 | typedef struct dh_st DH;
      |                ^~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:305:21: error: ‘rfc7919_g’ was not declared in this scope
  305 |   dh->g = BN_bin2bn(rfc7919_g, sizeof(rfc7919_g), nullptr);
      |                     ^~~~~~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:306:10: error: invalid use of incomplete type ‘DH’ {aka ‘struct dh_st’}
  306 |   if (!dh->p || !dh->g) {
      |          ^~
/usr/include/openssl/ossl_typ.h:130:16: note: forward declaration of ‘DH’ {aka ‘struct dh_st’}
  130 | typedef struct dh_st DH;
      |                ^~~~~
/var/tmp/portage/dev-db/mysql-connector-c-8.0.36/work/mysql-8.0.36/include/dh_ecdh_config.h:306:20: error: invalid use of incomplete type ‘DH’ {aka ‘struct dh_st’}
  306 |   if (!dh->p || !dh->g) {
      |                    ^~
/usr/include/openssl/ossl_typ.h:130:16: note: forward declaration of ‘DH’ {aka ‘struct dh_st’}
  130 | typedef struct dh_st DH;
      |                ^~~~~