https://github.com/openssl/openssl/commit/60f011f584d80447e86cae1d1bd3ae24bc13235b This fixes a regression in 1.1.1q: test/v3ext.c:201:24: error: implicitly declaring library function 'memcmp' with type 'int (const void *, const void *, unsigned long)' [-Werror,-Wimplicit-function-declaration] if (!TEST_true(memcmp(ip1->data, ip2->data, ip1->length) <= 0)) diff -Naur openssl-1.1.1q/test/v3ext.c openssl-1.1.1q-patched/test/v3ext.c --- openssl-1.1.1q/test/v3ext.c 2022-07-05 09:08:33.000000000 +0000 +++ openssl-1.1.1q-patched/test/v3ext.c 2022-09-05 16:54:45.740859256 +0000 @@ -8,6 +8,7 @@ */ #include +#include #include #include #include