From 16b165ccad7f3a7f3903bcdec4c3ad7405f335be Mon Sep 17 00:00:00 2001
From: Carlos Alberto Lopez Perez <clopez@igalia.com>
Date: Wed, 20 Feb 2013 23:06:48 +0100
Subject: [PATCH] Explicity select what is copied inside the DKMS source tree

 * We use the variable DKMSFILES to explicity select wich files
   or directories are copied inside the DKMS source tree.

 * Once copied. We rewrite configure.ac with awk to remove the
   userland/misc components and only keep the kernel stuff that
   is needed by DKMS.

   * The awk lines deletes from inside AC_CONFIG_FILES([]) of configure.ac
     everything except:
	(Makefile$|include/|module/|*.release$|dkms.conf$)

   * Then we run ./autogen.sh to generate the configure scripts
     inside the DKMS source tree

 * This allows us to ship a clean DKMS source tree with *only* the kernel
   components and free from the userland/misc ones (ex: splat)

    * Prevents manual build on the DKMS source tree.
---
 debian/rules | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/debian/rules b/debian/rules
index d5b53e3..7066fe3 100755
--- a/debian/rules
+++ b/debian/rules
@@ -4,6 +4,9 @@ NAME := $(shell awk '$$1 == "Name:" { print $$2; }' META)
 VERSION := $(shell dpkg-parsechangelog \
   | awk '$$1 == "Version:" { print $$2; }' | cut -d- -f1)
 
+DKMSFILES := module include config Makefile.in autogen.sh dkms.conf.in \
+			spl.release.in META spl_config.h AUTHORS DISCLAIMER
+
 %:
 	dh $@ --with dkms
 
@@ -34,18 +37,26 @@ override_dh_auto_install:
 	@# This creates the $(CURDIR)/$(NAME)-$(VERSION)/ tree.
 	$(MAKE) distdir
 
-	@# Delete boilerplate to satisfy the lintian extra-license-file check.
-	rm '$(CURDIR)/$(NAME)-$(VERSION)/COPYING'
+	# Install the DKMS source.
+	@# We only want the files needed to build the modules
+	mkdir -p '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(VERSION)'
+	$(foreach file,$(DKMSFILES),mv '$(CURDIR)/$(NAME)-$(VERSION)/$(file)' '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(VERSION)';)
+	@# Hellish awk line:
+	@#  * Deletes from configure.ac the parts not needed for building the kernel module
+	@#     * It deletes from inside AC_CONFIG_FILES([]) everything except:
+	@#        (Makefile$|include/|module/|*.release$|dkms.conf$)
+	@#  * Takes care of spaces and tabs
+	awk '/^AC_CONFIG_FILES\(\[/,/^\]\)/ { if ($$0 !~ /^(AC_CONFIG_FILES\(\[([ \t]+)?$$|\]\)([ \t]+)?$$|([ \t]+)?(include\/|module\/|Makefile([ \t]+)?$$|spl\.release([ \t]+)?$$|dkms\.conf([ \t]+)?$$))/){next} } {print}' \
+		'$(CURDIR)/$(NAME)-$(VERSION)/configure.ac' > '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(VERSION)/configure.ac'
+	cp '$(CURDIR)/autogen.sh' '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(VERSION)'
+	cd '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(VERSION)'; ./autogen.sh
+	rm -fr '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(VERSION)/autom4te.cache'
 
 	@# This shunt allows DKMS to install the Module.symvers and spl_config.h
 	@# files to the ${dkms_tree} area through the POST_INSTALL directive.
-	echo '#!/bin/sh'  >'$(CURDIR)/$(NAME)-$(VERSION)/cp'
-	echo 'cp "$$@"'  >>'$(CURDIR)/$(NAME)-$(VERSION)/cp'
-	chmod 755 '$(CURDIR)/$(NAME)-$(VERSION)/cp'
-
-	# Install the DKMS source.
-	mkdir -p '$(CURDIR)/debian/tmp/usr/src/'
-	mv '$(CURDIR)/$(NAME)-$(VERSION)' '$(CURDIR)/debian/tmp/usr/src/'
+	echo '#!/bin/sh'  >'$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(VERSION)/cp'
+	echo 'cp "$$@"'  >>'$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(VERSION)/cp'
+	chmod 755 '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(VERSION)/cp'
 
 override_dh_dkms:
 	dh_dkms -V $(VERSION)