Implementation notes: amd64, whosthere, crypto_hash/md2

Computer: whosthere
Microarchitecture: amd64; KabyLake (806e9)
Architecture: amd64
CPU ID: GenuineIntel-000806e9-bfebfbff
SUPERCOP version: 20221122
Operation: crypto_hash
Primitive: md2

Compiler output

Implementation: T:openssl
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

hash.c: hash.c:7:3: warning: implicit declaration of function 'MD2' is invalid in C99 [-Wimplicit-function-declaration]
hash.c: MD2(in,inlen,out);
hash.c: ^
hash.c: 1 warning generated.
try.c: /usr/bin/ld: libcrypto_hash_md2.a(hash.o): in function `crypto_hash_md2_openssl_timingleaks':
try.c: hash.c:(.text+0x...): undefined reference to `MD2'
try.c: clang: error: linker command failed with exit code 1 (use -v to see invocation)

Number of similar (compiler,implementation) pairs: 5, namely:

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:openssl
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:openssl
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:openssl
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:openssl
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:openssl

Compiler output

Implementation: T:openssl
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

hash.c: hash.c: In function 'crypto_hash_md2_openssl_timingleaks':
hash.c: hash.c:7:3: warning: implicit declaration of function 'MD2' [-Wimplicit-function-declaration]
hash.c: 7 | MD2(in,inlen,out);
hash.c: | ^~~
try.c: /usr/bin/ld: libcrypto_hash_md2.a(hash.o): in function `crypto_hash_md2_openssl_timingleaks':
try.c: hash.c:(.text+0x...): undefined reference to `MD2'
try.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 4, namely:

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:openssl
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:openssl
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:openssl
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:openssl