Implementation notes: mipso32, gcc23, crypto_sign/rainbow3c

Computer: gcc23
Microarchitecture: mipso32; Octeon II (cnmips64v2)
Architecture: mipso32
CPU ID: unknown CPU ID
SUPERCOP version: 20230530
Operation: crypto_sign
Primitive: rainbow3c

Compiler output

Implementation: T:portable
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
hash_utils.c: hash_utils.c: In function 'expand_sha2':
hash_utils.c: hash_utils.c:85:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
hash_utils.c: for(unsigned i=0;i<n_digest;i++) digest[i] = hash[i];
hash_utils.c: ^
hash_utils.c: hash_utils.c:85:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
hash_utils.c: hash_utils.c:88:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
hash_utils.c: for(unsigned i=0;i<_HASH_LEN;i++) digest[i] = hash[i];
hash_utils.c: ^
hash_utils.c: hash_utils.c:101:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
hash_utils.c: for(unsigned i=0;i<n_digest;i++) digest[_HASH_LEN+i] = temp[i];
hash_utils.c: ^
hash_utils.c: hash_utils.c: In function 'sha2_chain_byte':
hash_utils.c: hash_utils.c:136:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
hash_utils.c: for(unsigned i=0;i<output_size;i++) {
hash_utils.c: ^
Number of similar (compiler,implementation) pairs: 8, namely:
CompilerImplementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:portable
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:portable
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:portable
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:portable
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref