This updates sha1dc fixing the issue on Cygwin introduced in 2.13.1, and hopefully not regressing elsewhere. Liam, it would be much appreciated if you could test this on SPARC. As before the "sha1dc: update from upstream" patch is what should fast-track to master/maint and be in 2.13.2, the other two are the cooking submodule use, that's all unchanged aside from of course the submodule pointing to the same upstream commit as the code import itself does. Junio: There's a whitespace change to sha1.h that am warns about, but which it applies anyway that you didn't apply from my previous patch. I think it probably makes sense to just take upstream's whitespace shenanigans as-is instead of seeing that diff every time we update. I guess we could also send them a pull request... Junio C Hamano (1): sha1collisiondetection: automatically enable when submodule is populated Ævar Arnfjörð Bjarmason (2): sha1dc: update from upstream sha1dc: optionally use sha1collisiondetection as a submodule .gitmodules | 4 ++++ Makefile | 16 ++++++++++++++++ hash.h | 4 ++++ sha1collisiondetection | 1 + sha1dc/sha1.c | 30 ++++++++++++++++++++++++------ sha1dc/sha1.h | 6 +++--- 6 files changed, 52 insertions(+), 9 deletions(-) create mode 100644 .gitmodules create mode 160000 sha1collisiondetection -- 2.13.0.506.g27d5fe0cd