On the machine gcc119.fsffrance.org (AIX 7.3.1), with gcc (CC="/opt/freeware/bin/gcc -maix64"), there is a compilation error:
CC lib/libcoreutils_a-md5-stream.o In file included from /usr/include/openssl/opensslv.h:125, from ../lib/md5.h:36, from ../lib/md5-stream.c:28: /usr/include/openssl/macros.h:155:4: error: #error "The requested API level higher than the configured API compatibility level" 155 | # error "The requested API level higher than the configured API compatibility level" | ^~~~~ make: 1254-004 The error code from the last command is 1. There is a workaround against this error in Gnulib, added through <https://lists.gnu.org/archive/html/bug-gnulib/2023-08/msg00179.html>. But it does not have the desired effect in coreutils, because the default in gnulib is --with-openssl=no whereas the default in coreutils is --with-openssl=auto-gpl-compat I think the solution will be to stop setting define OPENSSL_API_COMPAT 0x10101000L and instead use the OpenSSL 3.x API if an OpenSSL 3.x library is found. IIRC, this implies extending gnulib/lib/gl_openssl.h, to use the newer OpenSSL API. [1] Bruno [1] https://www.openssl.org/docs/man3.0/man7/migration_guide.html#Deprecated-low-level-encryption-functions