gpt: Switch to new cross-friendly packaging style

debian/rules

Index: debian/rules
diff --git a/debian/rules b/debian/rules
index 9232e98b0835e74eab6161c223f0936307b05212..480e073e7127e9916fa924e400d1b431549ace2c 100755
--- a/debian/rules
+++ b/debian/rules
@@ -4,45 +4,17 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-# Uncomment this to turn on verbose mode.
-#export DH_VERBOSE=1
-
-build: build-stamp
-	dh_auto_build
-
-build-stamp:
-	dh_testdir
-	touch $@
-
-clean:
-	dh_testdir
-	dh_testroot
-	rm -f build-stamp
-	dh_auto_clean
-	dh_clean
-
-install:
-	dh_testdir
-	dh_testroot
-	dh_prep
-	dh_installdirs
-	dh_install gpt usr/bin
-	dh_strip
-
-# Build architecture-independent files here.
-binary-indep: install
-	dh_testdir
-	dh_testroot
-	dh_link
-	dh_strip
-	dh_compress
-	dh_fixperms
-	dh_installdeb
-	dh_shlibdeps
-	dh_gencontrol
-	dh_md5sums
-	dh_builddeb
-
-binary: binary-indep
-
-.PHONY: build clean install binary-indep binary
+# TODO: This might become unnecessary if we start setting CC centrally.
+DEB_BUILD_GNU_TYPE := $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
+DEB_HOST_GNU_TYPE  := $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
+ifeq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
+CC := gcc
+else
+CC := $(DEB_HOST_GNU_TYPE)-gcc
+endif
+
+%:
+	dh $@
+
+override_dh_auto_build:
+	dh_auto_build -- CC=$(CC)