Implementation notes: mipso32, gcc23, crypto_hash/heron256v1

Computer: gcc23
Microarchitecture: mipso32; Octeon II (cnmips64v2)
Architecture: mipso32
CPU ID: unknown CPU ID
SUPERCOP version: 20230530
Operation: crypto_hash
Primitive: heron256v1

Compiler output

Implementation: T:ref
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
hash.c: hash.c: In function 'CoreStep':
hash.c: hash.c:37:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
hash.c: for (int i = 0; i < 4; i++)
hash.c: ^
hash.c: hash.c:37:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
hash.c: hash.c:39:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
hash.c: for (int j = 0; j < 63; j++)
hash.c: ^
hash.c: hash.c: In function 'BfStep':
hash.c: hash.c:55:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
hash.c: for (int i = 0; i < 511; i++)
hash.c: ^
hash.c: hash.c: In function 'HashByte':
hash.c: hash.c:82:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
hash.c: for (int i = 0; i < 8; i++)
hash.c: ^
hash.c: hash.c: In function 'Load':
hash.c: hash.c:95:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
hash.c: for (int i = 0; i < 4; i++)
hash.c: ^
hash.c: hash.c:97:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
hash.c: for (int j = 0; j < 32; j++)
hash.c: ^
hash.c: hash.c:105:11: error: redefinition of 'i'
hash.c: for (int i = 0; i < 16; i++)
hash.c: ...

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