basic threaded delta search

diff --git a/Makefile b/Makefile
index 51af531c9a0c23dcd577bc73ccd14940ed20ae57..a92fb316950155cd0e3d27d61cbf16432b2e3386 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -122,6 +122,9 @@ all::
 # If not set it defaults to the bare 'wish'. If it is set to the empty
 # string then NO_TCLTK will be forced (this is used by configure script).
 #
+# Define THREADED_DELTA_SEARCH if you have pthreads and wish to exploit
+# parallel delta searching when packing objects.
+#
 
 GIT-VERSION-FILE: .FORCE-GIT-VERSION-FILE
        @$(SHELL_PATH) ./GIT-VERSION-GEN
@@ -662,6 +665,11 @@ ifdef NO_HSTRERROR
        COMPAT_OBJS += compat/hstrerror.o
 endif
 
+ifdef THREADED_DELTA_SEARCH
+       BASIC_CFLAGS += -DTHREADED_DELTA_SEARCH
+       EXTLIBS += -lpthread
+endif
+
 ifeq ($(TCLTK_PATH),)
 NO_TCLTK=NoThanks
 endif