Merge branch 'ab/dc-sha1-loose-ends'

Tying loose ends for the recent integration work of
collision-detecting SHA-1 implementation.

* ab/dc-sha1-loose-ends:
Makefile: NO_OPENSSL=1 should no longer imply BLK_SHA1=1

diff --combined Makefile
index bb5b7cdfb695ee7f15128d5885ea74a4e34f5b9b,7e1da28b6f323bc22c64cfcdb75b539a5d7beff5..1a9b23b6793f91072760affefac3851ca457a2f5
--- 1/Makefile
--- 2/Makefile
+++ b/Makefile
@@@ -23,7 -23,6 +23,6 @@@ all:
  # it at all).
  #
  # Define NO_OPENSSL environment variable if you do not have OpenSSL.
- # This also implies BLK_SHA1.
  #
  # Define USE_LIBPCRE if you have and want to use libpcre. Various
  # commands such as log and grep offer runtime options to use
@@@ -425,13 -424,6 +424,13 @@@
  #
  # to say "export LESS=FRX (and LV=-c) if the environment variable
  # LESS (and LV) is not set, respectively".
 +#
 +# Define TEST_SHELL_PATH if you want to use a shell besides SHELL_PATH for
 +# running the test scripts (e.g., bash has better support for "set -x"
 +# tracing).
 +#
 +# When cross-compiling, define HOST_CPU as the canonical name of the CPU on
 +# which the built Git will run (for instance "x86_64").
  
  GIT-VERSION-FILE: FORCE
        @$(SHELL_PATH) ./GIT-VERSION-GEN
@@@ -737,8 -729,6 +736,8 @@@ endi
  export PERL_PATH
  export PYTHON_PATH
  
 +TEST_SHELL_PATH = $(SHELL_PATH)
 +
  LIB_FILE = libgit.a
  XDIFF_LIB = xdiff/lib.a
  VCSSVN_LIB = vcs-svn/lib.a
@@@ -1108,12 -1098,6 +1107,12 @@@ els
  BROKEN_PATH_FIX = '/^\# @@BROKEN_PATH_FIX@@$$/d'
  endif
  
 +ifeq (,$(HOST_CPU))
 +      BASIC_CFLAGS += -DGIT_HOST_CPU="\"$(firstword $(subst -, ,$(uname_M)))\""
 +else
 +      BASIC_CFLAGS += -DGIT_HOST_CPU="\"$(HOST_CPU)\""
 +endif
 +
  ifneq (,$(INLINE))
        BASIC_CFLAGS += -Dinline=$(INLINE)
  endif
@@@ -1275,7 -1259,6 +1274,6 @@@ ifndef NO_OPENSS
        endif
  else
        BASIC_CFLAGS += -DNO_OPENSSL
-       BLK_SHA1 = 1
        OPENSSL_LIBSSL =
  endif
  ifdef NO_OPENSSL
@@@ -1744,7 -1727,6 +1742,7 @@@ prefix_SQ = $(subst ','\'',$(prefix)
  gitwebdir_SQ = $(subst ','\'',$(gitwebdir))
  
  SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
 +TEST_SHELL_PATH_SQ = $(subst ','\'',$(TEST_SHELL_PATH))
  PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH))
  PYTHON_PATH_SQ = $(subst ','\'',$(PYTHON_PATH))
  TCLTK_PATH_SQ = $(subst ','\'',$(TCLTK_PATH))
@@@ -1913,9 -1895,7 +1911,9 @@@ builtin/help.sp builtin/help.s builtin/
  version.sp version.s version.o: GIT-VERSION-FILE GIT-USER-AGENT
  version.sp version.s version.o: EXTRA_CPPFLAGS = \
        '-DGIT_VERSION="$(GIT_VERSION)"' \
 -      '-DGIT_USER_AGENT=$(GIT_USER_AGENT_CQ_SQ)'
 +      '-DGIT_USER_AGENT=$(GIT_USER_AGENT_CQ_SQ)' \
 +      '-DGIT_BUILT_FROM_COMMIT="$(shell GIT_CEILING_DIRECTORIES=\"$(CURDIR)/..\" \
 +              git rev-parse -q --verify HEAD || :)"'
  
  $(BUILT_INS): git$X
        $(QUIET_BUILT_IN)$(RM) $@ && \
@@@ -2377,7 -2357,6 +2375,7 @@@ GIT-LDFLAGS: FORC
  # and the first level quoting from the shell that runs "echo".
  GIT-BUILD-OPTIONS: FORCE
        @echo SHELL_PATH=\''$(subst ','\'',$(SHELL_PATH_SQ))'\' >$@+
 +      @echo TEST_SHELL_PATH=\''$(subst ','\'',$(TEST_SHELL_PATH_SQ))'\' >>$@+
        @echo PERL_PATH=\''$(subst ','\'',$(PERL_PATH_SQ))'\' >>$@+
        @echo DIFF=\''$(subst ','\'',$(subst ','\'',$(DIFF)))'\' >>$@+
        @echo PYTHON_PATH=\''$(subst ','\'',$(PYTHON_PATH_SQ))'\' >>$@+