Since 27dc04c5450 (sha256: add an SHA-256 implementation using libgcrypt, 2018-11-14) we've claimed to support a BLK_SHA256 flag, but there's no such SHA-256 backend. Instead we fall back on adding "sha256/block/sha256.o" to "LIB_OBJS" and adding "-DSHA256_BLK" to BASIC_CFLAGS. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> --- Makefile | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 870ecdb0d85..992eba9e0c8 100644 --- a/Makefile +++ b/Makefile @@ -513,7 +513,15 @@ include shared.mak # # === SHA-256 backend === # -# Define BLK_SHA256 to use the built-in SHA-256 routines. +# ==== Default SHA-256 backend ==== +# +# If no *_SHA256 backend is picked we'll fall fall back on using the +# default. +# +# The default SHA-256 backend is shipped with Git. No flag is required +# to enable it. To select it don't define any other *_SHA256 flag. +# +# ==== Other SHA-256 implementations ==== # # Define NETTLE_SHA256 to use the SHA-256 routines in libnettle. # -- 2.38.0.1251.g3eefdfb5e7a