I am building git from source using gcc 4.8.5 on 64 bit linux.
I am sorry the log info is not very helpful, please tell me how to get more
information about what is going wrong and I will collect the info for you!
V2.12.0 Broken log
==============
Export GIT_TRACE=1
git difftool -d HEAD~
09:11:27.797674 git.c:371 trace: built-in: git 'difftool' '-d'
'HEAD~'
09:11:27.798255 run-command.c:369 trace: run_command: 'diff' '--raw'
'--no-abbrev' '-z' 'HEAD~'
09:11:27.798484 exec_cmd.c:118 trace: exec: 'git' 'diff' '--raw'
'--no-abbrev' '-z' 'HEAD~'
09:11:27.800156 git.c:371 trace: built-in: git 'diff' '--raw'
'--no-abbrev' '-z' 'HEAD~'
fatal: cannot create directory at '': No such file or directory
Running make check gives
fixed 0
success 14475
failed 0
broken 184
total 14804
Also broken in v2.12.0-rc0, v2.12.0-rc1 and v2.12.0-rc2
-----------------------------------------------------------------
V 2.11.1 works
===========