diff --git a/contrib/contacts/.gitignore b/contrib/contacts/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..f385ee643c74c2281c63d5d50c3b8b8046c8b80c
--- /dev/null
+++ b/contrib/contacts/.gitignore
@@ -0,0 +1,3 @@
+git-contacts.1
+git-contacts.html
+git-contacts.xml
diff --git a/contrib/contacts/Makefile b/contrib/contacts/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..a2990f0dcb53b19ed2da8f18ffb1fa1125e5b38d
--- /dev/null
+++ b/contrib/contacts/Makefile
@@ -0,0 +1,71 @@
+# The default target of this Makefile is...
+all::
+
+-include ../../config.mak.autogen
+-include ../../config.mak
+
+prefix ?= /usr/local
+gitexecdir ?= $(prefix)/libexec/git-core
+mandir ?= $(prefix)/share/man
+man1dir ?= $(mandir)/man1
+htmldir ?= $(prefix)/share/doc/git-doc
+
+../../GIT-VERSION-FILE: FORCE
+	$(MAKE) -C ../../ GIT-VERSION-FILE
+
+-include ../../GIT-VERSION-FILE
+
+# this should be set to a 'standard' bsd-type install program
+INSTALL  ?= install
+RM       ?= rm -f
+
+ASCIIDOC = asciidoc
+XMLTO    = xmlto
+
+ifndef SHELL_PATH
+	SHELL_PATH = /bin/sh
+endif
+SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
+
+ASCIIDOC_CONF = ../../Documentation/asciidoc.conf
+MANPAGE_XSL   = ../../Documentation/manpage-normal.xsl
+
+GIT_CONTACTS := git-contacts
+
+GIT_CONTACTS_DOC := git-contacts.1
+GIT_CONTACTS_XML := git-contacts.xml
+GIT_CONTACTS_TXT := git-contacts.txt
+GIT_CONTACTS_HTML := git-contacts.html
+
+doc: $(GIT_CONTACTS_DOC) $(GIT_CONTACTS_HTML)
+
+install: $(GIT_CONTACTS)
+	$(INSTALL) -d -m 755 $(DESTDIR)$(gitexecdir)
+	$(INSTALL) -m 755 $(GIT_CONTACTS) $(DESTDIR)$(gitexecdir)
+
+install-doc: install-man install-html
+
+install-man: $(GIT_CONTACTS_DOC)
+	$(INSTALL) -d -m 755 $(DESTDIR)$(man1dir)
+	$(INSTALL) -m 644 $^ $(DESTDIR)$(man1dir)
+
+install-html: $(GIT_CONTACTS_HTML)
+	$(INSTALL) -d -m 755 $(DESTDIR)$(htmldir)
+	$(INSTALL) -m 644 $^ $(DESTDIR)$(htmldir)
+
+$(GIT_CONTACTS_DOC): $(GIT_CONTACTS_XML)
+	$(XMLTO) -m $(MANPAGE_XSL) man $^
+
+$(GIT_CONTACTS_XML): $(GIT_CONTACTS_TXT)
+	$(ASCIIDOC) -b docbook -d manpage -f $(ASCIIDOC_CONF) \
+		-agit_version=$(GIT_VERSION) $^
+
+$(GIT_CONTACTS_HTML): $(GIT_CONTACTS_TXT)
+	$(ASCIIDOC) -b xhtml11 -d manpage -f $(ASCIIDOC_CONF) \
+		-agit_version=$(GIT_VERSION) $^
+
+clean:
+	$(RM) $(GIT_CONTACTS)
+	$(RM) *.xml *.html *.1
+
+.PHONY: FORCE
diff --git a/contrib/subtree/.gitignore b/contrib/subtree/.gitignore
index 91360a3d7f0ad2d589dfe0365d4456d56853e7c0..0b9381abcad34e79a1cdfa129bb9b3e4e187a62e 100644
--- a/contrib/subtree/.gitignore
+++ b/contrib/subtree/.gitignore
@@ -1,6 +1,7 @@
 *~
 git-subtree
-git-subtree.xml
 git-subtree.1
+git-subtree.html
+git-subtree.xml
 mainline
 subproj
diff --git a/contrib/subtree/Makefile b/contrib/subtree/Makefile
index c2bd703ee3aa0fd734c71dc50c01085455d33773..3071baf493442e8bfb3f34252f9c0d13801343b1 100644
--- a/contrib/subtree/Makefile
+++ b/contrib/subtree/Makefile
@@ -5,9 +5,10 @@ all::
 -include ../../config.mak
 
 prefix ?= /usr/local
-mandir ?= $(prefix)/share/man
 gitexecdir ?= $(prefix)/libexec/git-core
+mandir ?= $(prefix)/share/man
 man1dir ?= $(mandir)/man1
+htmldir ?= $(prefix)/share/doc/git-doc
 
 ../../GIT-VERSION-FILE: FORCE
 	$(MAKE) -C ../../ GIT-VERSION-FILE
@@ -49,12 +50,16 @@ install: $(GIT_SUBTREE)
 	$(INSTALL) -d -m 755 $(DESTDIR)$(gitexecdir)
 	$(INSTALL) -m 755 $(GIT_SUBTREE) $(DESTDIR)$(gitexecdir)
 
-install-doc: install-man
+install-doc: install-man install-html
 
 install-man: $(GIT_SUBTREE_DOC)
 	$(INSTALL) -d -m 755 $(DESTDIR)$(man1dir)
 	$(INSTALL) -m 644 $^ $(DESTDIR)$(man1dir)
 
+install-html: $(GIT_SUBTREE_HTML)
+	$(INSTALL) -d -m 755 $(DESTDIR)$(htmldir)
+	$(INSTALL) -m 644 $^ $(DESTDIR)$(htmldir)
+
 $(GIT_SUBTREE_DOC): $(GIT_SUBTREE_XML)
 	$(XMLTO) -m $(MANPAGE_XSL) man $^