Hi, Dmitry! ok to push (again, comments below) On Oct 19, Dmitry Shulga wrote:

revision-id: 5e71a3e0df7 (mariadb-10.2.31-489-g5e71a3e0df7) parent(s): 8984d779103 author: Dmitry Shulga <dmitry.shulga@mariadb.com> committer: Dmitry Shulga <dmitry.shulga@mariadb.com> timestamp: 2020-10-09 20:55:14 +0700 message:

MDEV-23925: Fix warnings generated during compilation of mysys_ssl/openssl.c on MacOS

Compiler warnings listed below are generated during server build on MacOS: In file included from server-10.2-MDEV-23564/mysys_ssl/openssl.c:33: In file included from /usr/local/include/openssl/evp.h:16: In file included from /usr/local/include/openssl/bio.h:20: /usr/local/include/openssl/crypto.h:206:10: warning: 'CRYPTO_cleanup_all_ex_data' macro redefined [-Wmacro-redefined] ^ /mariadb/server-10.2-MDEV-23564/include/ssl_compat.h:46:9: note: previous definition is here ^ In file included from /mariadb/server-10.2-MDEV-23564/mysys_ssl/openssl.c:33: /usr/local/include/openssl/evp.h:501:10: warning: 'EVP_MD_CTX_init' macro redefined [-Wmacro-redefined] ^ /mariadb/server-10.2-MDEV-23564/include/ssl_compat.h:33:9: note: previous definition is here ^ In file included from /mariadb/server-10.2-MDEV-23564/mysys_ssl/openssl.c:33: /usr/local/include/openssl/evp.h:627:11: warning: 'EVP_CIPHER_CTX_init' macro redefined [-Wmacro-redefined] ^ /mariadb/server-10.2-MDEV-23564/include/ssl_compat.h:35:9: note: previous definition is here ^ In file included from /mariadb/server-10.2-MDEV-23564/mysys_ssl/openssl.c:33: /usr/local/include/openssl/evp.h:866:11: warning: 'EVP_cleanup' macro redefined [-Wmacro-redefined] ^ /mariadb/server-10.2-MDEV-23564/include/ssl_compat.h:44:9: note: previous definition is here ^ 4 warnings generated.

generally these long commit comments are not any more clear than if you'd only listed one compilation failure.

In case MariaDB serer is build with -DCMAKE_BUILD_TYPE=Debug it results in build error.

The reason of compiler warnings is that header file <ssl_compat.h> included before the openssl system header files. File ssl_compat.h contains some macros with the name as SSL API functions declared in the openssl system header files. It resulted in duplicate symbols thats produces compiler warnings.

To fix the issue the header file ssl_compat.h should be included after a line where openssl system header is included.

--- mysys_ssl/openssl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mysys_ssl/openssl.c b/mysys_ssl/openssl.c index f3dc8f4277c..a11db113b14 100644 --- a/mysys_ssl/openssl.c +++ b/mysys_ssl/openssl.c @@ -15,7 +15,6 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */

#include <my_global.h> -#include <ssl_compat.h>

/* The check is only done for OpenSSL 1.1.x. @@ -25,13 +24,14 @@ */

#ifndef HAVE_OPENSSL11 +#include <ssl_compat.h> int check_openssl_compatibility() { return 0; } #else #include <openssl/evp.h> - +#include <ssl_compat.h> static uint testing, alloc_size, alloc_count;

static void *coc_malloc(size_t size, const char *f __attribute__((unused)),

Regards, Sergei VP of MariaDB Server Engineering and security@mariadb.org