Implementation notes: amd64, temp, crypto_sign/sphincsf256sha256simple

Computer: temp
Architecture: amd64
CPU ID: AuthenticAMD-00800f12-178bfbff
SUPERCOP version: 20191017
Operation: crypto_sign
Primitive: sphincsf256sha256simple

Compiler output

Implementation: avx2
Security model: unknown
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
sha256.c: sha256.c: In function 'sha256_inc_init':
sha256.c: sha256.c:261:5: error: 'for' loop initial declarations are only allowed in C99 mode
sha256.c: for (size_t i = 0; i < 32; ++i) {
sha256.c: ^
sha256.c: sha256.c:261:5: note: use option -std=c99 or -std=gnu99 to compile your code
sha256.c: sha256.c:264:17: error: redefinition of 'i'
sha256.c: for (size_t i = 32; i < 40; ++i) {
sha256.c: ^
sha256.c: sha256.c:261:17: note: previous definition of 'i' was here
sha256.c: for (size_t i = 0; i < 32; ++i) {
sha256.c: ...
sha256.c: ^
sha256.c: sha256.c:320:17: error: redefinition of 'i'
sha256.c: for (size_t i = 0; i < 32; ++i) {
sha256.c: ^
sha256.c: sha256.c:287:17: note: previous definition of 'i' was here
sha256.c: for (size_t i = 0; i < inlen; ++i) {
sha256.c: ^
sha256.c: sha256.c:320:5: error: 'for' loop initial declarations are only allowed in C99 mode
sha256.c: for (size_t i = 0; i < 32; ++i) {
sha256.c: ^
Number of similar (compiler,implementation) pairs: 8, namely:
CompilerImplementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE avx2
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE avx2
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE avx2
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE avx2
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE ref
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE ref
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE ref
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE ref