Implementation notes: mipso32, gcc23, crypto_kem/sikep503comp

Computer: gcc23
Microarchitecture: mipso32; Octeon II (cnmips64v2)
Architecture: mipso32
CPU ID: unknown CPU ID
SUPERCOP version: 20230530
Operation: crypto_kem
Primitive: sikep503comp

Compiler output

Implementation: T:amd64
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

P503_compressed.c: In file included from P503_compressed.c:390:0:
P503_compressed.c: fpx.inc: In function 'clear_words':
P503_compressed.c: fpx.inc:15:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
P503_compressed.c: for (unsigned int i = 0; i < nwords; i++)
P503_compressed.c: ^
P503_compressed.c: fpx.inc:15:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
P503_compressed.c: fpx.inc: In function 'ct_compare':
P503_compressed.c: fpx.inc:25:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
P503_compressed.c: for (unsigned int i = 0; i < len; i++)
P503_compressed.c: ^
P503_compressed.c: fpx.inc: In function 'ct_cmov':
P503_compressed.c: fpx.inc:36:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
P503_compressed.c: for (unsigned int i = 0; i < len; i++)
P503_compressed.c: ^
P503_compressed.c: fpx.inc: In function 'fp2_decode':
P503_compressed.c: fpx.inc:86:16: warning: passing argument 1 of 'to_fp2mont' from incompatible pointer type
P503_compressed.c: to_fp2mont(dec, dec);
P503_compressed.c: ^
P503_compressed.c: In file included from P503_compressed.c:10:0:
P503_compressed.c: internal.h:59:6: note: expected 'const digit_t (*)[8]' but argument is of type 'digit_t (*)[8]'
P503_compressed.c: void to_fp2mont(const f2elm_t a, f2elm_t mc);
P503_compressed.c: ^
P503_compressed.c: In file included from P503_compressed.c:390:0:
P503_compressed.c: fpx.inc: In function 'mp_subaddfast':
P503_compressed.c: fpx.inc:287:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
P503_compressed.c: ...

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:amd64
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:amd64
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:amd64
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:amd64