Include language packs in release

Resolves #3

debian/icecat.install

@@ -1,2 +1,4 @@
 debian/icecat.desktop /usr/share/applications
 debian/icecat/usr/lib/icecat/browser/chrome /usr/share/icecat/browser
+
+output/build/dist/linux-*/xpi/*.xpi /usr/lib/icecat/browser/extensions

debian/patches/build-directories.patch

@@ -0,0 +1,15 @@
+From: losuler <losuler@posteo.net>
+Subject: Fix build directories
+--- a/data/buildscripts/mozconfig-common	2021-07-19 04:09:30.552370922 +1000
++++ b/data/buildscripts/mozconfig-common	2021-07-19 04:11:33.059625780 +1000
+@@ -1,4 +1,3 @@
+-ac_add_options --with-l10n-base=$PWD/l10n
+ ac_add_options --enable-official-branding
+ ac_add_options --with-distribution-id=org.gnu
+ mk_add_options MOZ_MAKE_FLAGS=-j7
+--- a/data/buildscripts/mozconfig-gnulinux	2021-07-19 04:09:30.552370922 +1000
++++ b/data/buildscripts/mozconfig-gnulinux	2021-07-19 04:21:04.151479381 +1000
+@@ -1,2 +1,2 @@
+ ac_add_options --enable-application=browser
+-mk_add_options MOZ_OBJDIR=./obj-gnulinux
++mk_add_options MOZ_OBJDIR=../build

debian/patches/series

@@ -1 +1,2 @@
 offline-sources.patch
+build-directories.patch

debian/rules

@@ -31,4 +31,17 @@ else
 	--with-l10n-base=../icecat-$(FFVERSION)/l10n
 endif
 
+override_dh_auto_build:
+	dh_auto_build
+	cd output/build/browser/locales && \
+	for locale in $$(ls ../../../l10n/ -1); do \
+		make merge-$$locale LOCALE_MERGEDIR=. ; \
+		make langpack-$$locale LOCALE_MERGEDIR=. ; \
+	done
+	cd output/build/dist/linux-*/xpi && \
+	for langpack in $$(ls *.xpi); do \
+		language=$$(echo $$langpack | awk -F '.' '{print $$(NF-2)}') ; \
+		mv $$langpack langpack-$$language@icecat.mozilla.org.xpi ; \
+	done
+
 override_dh_auto_test: