Implementation notes: amd64, utrecht, crypto_sign/sphincs256

Computer: utrecht
Architecture: amd64
CPU ID: GenuineIntel-000006fb-bfebfbff
SUPERCOP version: 20160806
Operation: crypto_sign
Primitive: sphincs256

Compiler output

Implementation: crypto_sign/sphincs256/avx2
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv
try.c: /home/supercop/supercop-20160731/supercop-data/utrecht/amd64/lib/libsupercop.a(crypto_hash_blake512_bswap-hash.o):(.rodata+0xa0): multiple definition of `cst'
try.c: /home/supercop/supercop-20160731/supercop-data/utrecht/amd64/lib/libsupercop.a(crypto_hash_blake256_vect128_mmxhack-vector.o):(.rodata+0x300): first defined here
try.c: /usr/bin/ld: Warning: size of symbol `cst' changed from 64 in /home/supercop/supercop-20160731/supercop-data/utrecht/amd64/lib/libsupercop.a(crypto_hash_blake256_vect128_mmxhack-vector.o) to 128 in /home/supercop/supercop-20160731/supercop-data/utrecht/amd64/lib/libsupercop.a(crypto_hash_blake512_bswap-hash.o)
try.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 8, namely:
CompilerImplementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv avx2 ref
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv avx2 ref
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv avx2 ref
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv avx2 ref