Using BLK_SHA1 in lieu of the OpenSSL routines was done in [1], but since DC_SHA1 is now the default for git in general it makes sense for Windows to use that too, this looks like something that was missed back in [2]. As noted in [3] OpenSSL has a performance benefit compared to BLK_SHA1 on MinGW, so perhaps that and the Windows default should be changed around again, but that's a topic for another series, it seems clear that this specific flag is nobody's explicit intention. 1. 9bccfcdbff ("Windows: use BLK_SHA1 again", 2009-10-22) 2. e6b07da278 ("Makefile: make DC_SHA1 the default", 2017-03-17) 3. 2cfc70f0de ("mingw: use OpenSSL's SHA-1 routines", 2017-02-09) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> --- config.mak.uname | 1 - 1 file changed, 1 deletion(-) diff --git a/config.mak.uname b/config.mak.uname index 685a80d138..6a862abd35 100644 --- a/config.mak.uname +++ b/config.mak.uname @@ -361,7 +361,6 @@ ifeq ($(uname_S),Windows) NO_REGEX = YesPlease NO_GETTEXT = YesPlease NO_PYTHON = YesPlease - BLK_SHA1 = YesPlease ETAGS_TARGET = ETAGS NO_INET_PTON = YesPlease NO_INET_NTOP = YesPlease -- 2.15.1.424.g9478a66081