Support <nodoc> build profile

`xsltproc`, `docbook` and all other XML-related packages are not needed
when the `<nodoc>` build profile is active, as long as `./configure` is
called with `--disable-man`.

Closes: #1051827

debian/control

@@ -9,13 +9,13 @@ Build-Depends: debhelper-compat (= 13),
                libcrypt-dev,
                libpam0g-dev,
                quilt,
-               xsltproc,
-               docbook-xsl,
-               docbook-xml,
-               libxml2-utils,
+               xsltproc <!nodoc>,
+               docbook-xsl <!nodoc>,
+               docbook-xml <!nodoc>,
+               libxml2-utils <!nodoc>,
                libselinux1-dev [linux-any],
                libsemanage-dev [linux-any],
-               itstool,
+               itstool <!nodoc>,
                bison,
                libaudit-dev [linux-any]
 Standards-Version: 4.6.1

debian/rules

@@ -21,6 +21,10 @@ DEB_CONFIGURE_EXTRA_FLAGS := --without-libcrack \
 	--without-tcb \
 	 SHELL=/bin/sh
 
+ifneq ($(filter nodoc,$(DEB_BUILD_PROFILES)),)
+DEB_CONFIGURE_EXTRA_FLAGS += --disable-man
+endif
+
 # Set the default editor for vipw/vigr
 CFLAGS += -DDEFAULT_EDITOR="\"sensible-editor\""