debian: Multi-Arch support.

[mLib] / debian / rules

diff --git a/debian/rules b/debian/rules
index 5545dd1..f7796aa 100755 (executable)
--- a/debian/rules
+++ b/debian/rules
@@ -1,42 +1,76 @@
 #! /usr/bin/make -f
 
-CDBS = /usr/share/cdbs/1
+###--------------------------------------------------------------------------
+### Preliminary definitions.
+
+## The multiarch triple.
+DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
+a := $(DEB_HOST_MULTIARCH)
+
+## My version number, shorn of the Debian package version if any.
+DEB_UPSTREAM_VERSION ?= \
+       $(shell dpkg-parsechangelog | \
+               sed -n "/^Version: \([^-]*\)\(-.*\)\?/s//\1/p")
+v := $(DEB_UPSTREAM_VERSION)
+
+## Default Debhelper options.
+DH_OPTIONS = --parallel
 
-include $(CDBS)/rules/debhelper.mk
-include $(CDBS)/class/autotools.mk
+## Default Debhelper actions.
+%:; dh $@ $(DH_OPTIONS)
 
 ###--------------------------------------------------------------------------
-### General settings.
+### Multiple flavours.
 
-DEB_BUILDDIR = $(CURDIR)/build
-DEB_MAKE_CHECK_TARGET = check
+## The various flavours of the library which we must build.
+FLAVOURS = noadns adns
 
-DEB_CONFIGURE_EXTRA_FLAGS = --without-adns
-DEB_CONFIGURE_LIBEXECDIR = "\$${prefix}/lib"
+## The build actions which we have to override.
+DH_BUILD_OVERRIDES = configure clean build install test
 
-DEB_DH_MAKESHLIBS_ARGS_ALL = \
-       -V"mlib2 (>= $(DEB_UPSTREAM_VERSION)) | mlib2-adns (>= $(DEB_UPSTREAM_VERSION))"
+## How to perform build action for a particular library flavour.
+define flavour-build-action
+dh_auto_$1 -Bdebian/build-$2 \
+       $(DH_OPTIONS) $(DH_OPTIONS_$2) \
+       $(DH_$1_OPTIONS) $(DH_$1_OPTIONS_$2)
 
-###--------------------------------------------------------------------------
-### Building the ADNS version.
+endef
+
+## Override the build actions, and perform the relevant action for each
+## flavour in turn.
+$(foreach t, $(DH_BUILD_OVERRIDES), dh-$t-hook):: %:; @:
+$(foreach t, $(DH_BUILD_OVERRIDES), override_dh_auto_$t): \
+               override_dh_auto_%: dh-%-hook
+       $(foreach f, $(FLAVOURS), $(call flavour-build-action,$*,$f))
 
-DEB_CONFIGURE_EXTRA_FLAGS_mlib2-adns = --with-adns
-DEB_BUILDDIR_mlib2-adns = $(CURDIR)/build-adns
+## Configuration options.
+DH_configure_OPTIONS = -- --libexecdir='$${libdir}'
+DH_configure_OPTIONS_noadns = --without-adns
+DH_configure_OPTIONS_adns = --with-adns
 
-configure/mlib2-adns::
-       $(DEB_CONFIGURE_INVOKE) \
-               $(cdbs_configure_flags) \
-               $(DEB_CONFIGURE_EXTRA_FLAGS_mlib2-adns) \
-               $(DEB_CONFIGURE_USER_FLAGS)
+## Cleaning options.
+dh-clean-hook::
+       rm -rf debian/tmp-adns
 
-build/mlib2-adns::
-       $(DEB_MAKE_ENVVARS) $(MAKE) -C $(DEB_BUILDDIR_mlib2-adns)
+## Installation options.
+DH_install_OPTIONS_adns = --destdir=debian/tmp-adns
+
+###--------------------------------------------------------------------------
+### Additional tweaks.
 
-install/mlib2-adns::
-       $(DEB_MAKE_ENVVARS) $(MAKE) -C $(DEB_BUILDDIR_mlib2-adns) \
-               install DESTDIR=$(CURDIR)/debian/tmp-adns
+## Some of the install lists need to be generated.  This is a little
+## annoying.
+GEN_INSTALL_PKGS = mlib2-adns
+GEN_INSTALL_FILES = $(foreach p, $(GEN_INSTALL_PKGS), debian/$p.install)
+$(GEN_INSTALL_FILES): debian/%.install: \
+               debian/%.install.in debian/changelog debian/rules
+       sed 's,@ARCH@,$a,g' $< >$@.new && mv $@.new $@
+dh-install-hook:: $(GEN_INSTALL_FILES); @:
+dh-clean-hook::
+       rm -f $(GEN_INSTALL_FILES)
 
-clean::
-       rm -rf $(CURDIR)/debian/tmp-adns
+## Override the shared-library dependency information to allow any flavour.
+override_dh_makeshlibs:
+       dh_makeshlibs -V"mlib2 (>= $v) | mlib2-adns (>= $v)"
 
 ###----- That's all, folks --------------------------------------------------