C files don't cache.

[treeform]

So for most other static c projects the C files compile once and get cached. Which gives you fast compile time. But for some reason with this library the c files are compiled every-time like I am running with -f force recompile switch.

test script:

import bearssl
echo "here"

Channing the echo forces everything to recompile again which is very slow to develop:

CC: ccopy
CC: dec16be
CC: dec16le
CC: dec32be
CC: dec32le
CC: dec64be
CC: dec64le
CC: enc16be
CC: enc16le
CC: enc32be
CC: enc32le
CC: enc64be
CC: enc64le
CC: pemdec
CC: pemenc
CC: ecdsa_atr
CC: ecdsa_default_sign_asn1
CC: ecdsa_default_sign_raw
CC: ecdsa_default_vrfy_asn1
CC: ecdsa_default_vrfy_raw
CC: ecdsa_i15_bits
CC: ecdsa_i15_sign_asn1
CC: ecdsa_i15_sign_raw
CC: ecdsa_i15_vrfy_asn1
CC: ecdsa_i15_vrfy_raw
CC: ecdsa_i31_bits
CC: ecdsa_i31_sign_asn1
CC: ecdsa_i31_sign_raw
CC: ecdsa_i31_vrfy_asn1
CC: ecdsa_i31_vrfy_raw
CC: ecdsa_rta
CC: ec_all_m15
CC: ec_all_m31
CC: ec_c25519_i15
CC: ec_c25519_i31
CC: ec_c25519_m15
CC: ec_c25519_m31
CC: ec_c25519_m62
CC: ec_c25519_m64
CC: ec_curve25519
CC: ec_default
CC: ec_keygen
CC: ec_p256_m15
CC: ec_p256_m31
CC: ec_p256_m62
CC: ec_p256_m64
CC: ec_prime_i15
CC: ec_prime_i31
CC: ec_pubkey
CC: ec_secp256r1
CC: ec_secp384r1
CC: ec_secp521r1
CC: dig_oid
CC: dig_size
CC: ghash_ctmul
CC: ghash_ctmul32
CC: ghash_ctmul64
CC: ghash_pclmul
CC: ghash_pwr8
CC: md5
CC: md5sha1
CC: mgf1
CC: multihash
CC: sha1
CC: sha2big
CC: sha2small
CC: i15_add
CC: i15_bitlen
CC: i15_decmod
CC: i15_decode
CC: i15_decred
CC: i15_encode
CC: i15_fmont
CC: i15_iszero
CC: i15_moddiv
CC: i15_modpow
CC: i15_modpow2
CC: i15_montmul
CC: i15_mulacc
CC: i15_muladd
CC: i15_ninv15
CC: i15_reduce
CC: i15_rshift
CC: i15_sub
CC: i15_tmont
CC: i31_add
CC: i31_bitlen
CC: i31_decmod
CC: i31_decode
CC: i31_decred
CC: i31_encode
CC: i31_fmont
CC: i31_iszero
CC: i31_moddiv
CC: i31_modpow
CC: i31_modpow2
CC: i31_montmul
CC: i31_mulacc
CC: i31_muladd
CC: i31_ninv31
CC: i31_reduce
CC: i31_rshift
CC: i31_sub
CC: i31_tmont
CC: i32_add
CC: i32_bitlen
CC: i32_decmod
CC: i32_decode
CC: i32_decred
CC: i32_div32
CC: i32_encode
CC: i32_fmont
CC: i32_iszero
CC: i32_modpow
CC: i32_montmul
CC: i32_mulacc
CC: i32_muladd
CC: i32_ninv32
CC: i32_reduce
CC: i32_sub
CC: i32_tmont
CC: i62_modpow2
CC: hkdf
CC: shake
CC: hmac
CC: hmac_ct
CC: aesctr_drbg
CC: hmac_drbg
CC: sysrng
CC: rsa_default_keygen
CC: rsa_default_modulus
CC: rsa_default_oaep_decrypt
CC: rsa_default_oaep_encrypt
CC: rsa_default_pkcs1_sign
CC: rsa_default_pkcs1_vrfy
CC: rsa_default_priv
CC: rsa_default_privexp
CC: rsa_default_pss_sign
CC: rsa_default_pss_vrfy
CC: rsa_default_pub
CC: rsa_default_pubexp
CC: rsa_i15_keygen
CC: rsa_i15_modulus
CC: rsa_i15_oaep_decrypt
CC: rsa_i15_oaep_encrypt
CC: rsa_i15_pkcs1_sign
CC: rsa_i15_pkcs1_vrfy
CC: rsa_i15_priv
CC: rsa_i15_privexp
CC: rsa_i15_pss_sign
CC: rsa_i15_pss_vrfy
CC: rsa_i15_pub
CC: rsa_i15_pubexp
CC: rsa_i31_keygen
CC: rsa_i31_keygen_inner
CC: rsa_i31_modulus
CC: rsa_i31_oaep_decrypt
CC: rsa_i31_oaep_encrypt
CC: rsa_i31_pkcs1_sign
CC: rsa_i31_pkcs1_vrfy
CC: rsa_i31_priv
CC: rsa_i31_privexp
CC: rsa_i31_pss_sign
CC: rsa_i31_pss_vrfy
CC: rsa_i31_pub
CC: rsa_i31_pubexp
CC: rsa_i32_oaep_decrypt
CC: rsa_i32_oaep_encrypt
CC: rsa_i32_pkcs1_sign
CC: rsa_i32_pkcs1_vrfy
CC: rsa_i32_priv
CC: rsa_i32_pss_sign
CC: rsa_i32_pss_vrfy
CC: rsa_i32_pub
CC: rsa_i62_keygen
CC: rsa_i62_oaep_decrypt
CC: rsa_i62_oaep_encrypt
CC: rsa_i62_pkcs1_sign
CC: rsa_i62_pkcs1_vrfy
CC: rsa_i62_priv
CC: rsa_i62_pss_sign
CC: rsa_i62_pss_vrfy
CC: rsa_i62_pub
CC: rsa_oaep_pad
CC: rsa_oaep_unpad
CC: rsa_pkcs1_sig_pad
CC: rsa_pkcs1_sig_unpad
CC: rsa_pss_sig_pad
CC: rsa_pss_sig_unpad
CC: rsa_ssl_decrypt
CC: prf
CC: prf_md5sha1
CC: prf_sha256
CC: prf_sha384
CC: ssl_ccert_single_ec
CC: ssl_ccert_single_rsa
CC: ssl_client
CC: ssl_client_default_rsapub
CC: ssl_client_full
CC: ssl_engine
CC: ssl_engine_default_aescbc
CC: ssl_engine_default_aesccm
CC: ssl_engine_default_aesgcm
CC: ssl_engine_default_chapol
CC: ssl_engine_default_descbc
CC: ssl_engine_default_ec
CC: ssl_engine_default_ecdsa
CC: ssl_engine_default_rsavrfy
CC: ssl_hashes
CC: ssl_hs_client
CC: ssl_hs_server
CC: ssl_io
CC: ssl_keyexport
CC: ssl_lru
CC: ssl_rec_cbc
CC: ssl_rec_ccm
CC: ssl_rec_chapol
CC: ssl_rec_gcm
CC: ssl_scert_single_ec
CC: ssl_scert_single_rsa
CC: ssl_server
CC: ssl_server_full_ec
CC: ssl_server_full_rsa
CC: ssl_server_mine2c
CC: ssl_server_mine2g
CC: ssl_server_minf2c
CC: ssl_server_minf2g
CC: ssl_server_minr2g
CC: ssl_server_minu2g
CC: ssl_server_minv2g
CC: aes_big_cbcdec
CC: aes_big_cbcenc
CC: aes_big_ctr
CC: aes_big_ctrcbc
CC: aes_big_dec
CC: aes_big_enc
CC: aes_common
CC: aes_ct
CC: aes_ct64
CC: aes_ct64_cbcdec
CC: aes_ct64_cbcenc
CC: aes_ct64_ctr
CC: aes_ct64_ctrcbc
CC: aes_ct64_dec
CC: aes_ct64_enc
CC: aes_ct_cbcdec
CC: aes_ct_cbcenc
CC: aes_ct_ctr
CC: aes_ct_ctrcbc
CC: aes_ct_dec
CC: aes_ct_enc
CC: aes_pwr8
CC: aes_pwr8_cbcdec
CC: aes_pwr8_cbcenc
CC: aes_pwr8_ctr
CC: aes_pwr8_ctrcbc
CC: aes_small_cbcdec
CC: aes_small_cbcenc
CC: aes_small_ctr
CC: aes_small_ctrcbc
CC: aes_small_dec
CC: aes_small_enc
CC: aes_x86ni
CC: aes_x86ni_cbcdec
CC: aes_x86ni_cbcenc
CC: aes_x86ni_ctr
CC: aes_x86ni_ctrcbc
CC: chacha20_ct
CC: chacha20_sse2
CC: des_ct
CC: des_ct_cbcdec
CC: des_ct_cbcenc
CC: des_support
CC: des_tab
CC: des_tab_cbcdec
CC: des_tab_cbcenc
CC: poly1305_ctmul
CC: poly1305_ctmul32
CC: poly1305_ctmulq
CC: poly1305_i15
CC: ccm
CC: eax
CC: gcm
CC: asn1enc
CC: encode_ec_pk8der
CC: encode_ec_rawder
CC: encode_rsa_pk8der
CC: encode_rsa_rawder
CC: skey_decoder
CC: x509_decoder
CC: x509_knownkey
CC: x509_minimal
CC: x509_minimal_full
CC: settings
CC: xmem
CC: vector
CC: names
CC: certs
CC: files
CC: test.nim

Nim Compiler Version 1.5.1 [Linux: amd64]
Compiled at 2021-01-27
Copyright (c) 2006-2021 by Andreas Rumpf

active boot switches: -d:release

[arnetheduck]

we've noted this bug as well - most of the time, the caching works on a third compile - that said, the library uses {.compile.} and doesn't do anything fancy really - I would start looking in the compiler :/

[arnetheduck]

nim-lang/Nim#19554 should fix this