Switch package-oss output from Zip to BZip2

The file size should be smaller, it's just as available on OSX, and it massively simplifies the process of building .deb releases (as sources must be provided in .tar.* format, not .zip)

Author: Jo Shields

build-tools/scripts/BuildEverything.mk

@@ -11,7 +11,7 @@ GIT_COMMIT        = $(shell LANG=C git log --no-color --first-parent -n1 --prett
 -num-commits-since-version-change = $(shell LANG=C git log $(-commit-of-last-version-change)..HEAD --oneline 2>/dev/null | wc -l | sed 's/ //g')
 
 ZIP_OUTPUT_BASENAME   = oss-xamarin.android_v$(PRODUCT_VERSION).$(-num-commits-since-version-change)_$(OS)-$(OS_ARCH)_$(GIT_BRANCH)_$(GIT_COMMIT)
-ZIP_OUTPUT            = $(ZIP_OUTPUT_BASENAME).zip
+ZIP_OUTPUT            = $(ZIP_OUTPUT_BASENAME).tar.bz2
 
 
 ## The following values *must* use SPACE, **not** TAB, to separate values.
@@ -165,7 +165,5 @@ package-oss $(ZIP_OUTPUT):
 			echo "$(ZIP_OUTPUT_BASENAME)/bin/$$c/lib/xamarin.android/xbuild/$$f" >> "$$_exclude_list"; \
 		done; \
 	done; \
-	zip -r "$(ZIP_OUTPUT)" \
-		`ls -1d $(_BUNDLE_ZIPS_INCLUDE) 2>/dev/null` \
-		"-x@$$_exclude_list"
+	tar $(_BUNDLE_ZIPS_EXCLUDE:%=--exclude=%) -cjhvf "$(ZIP_OUTPUT)" `ls -1d $(_BUNDLE_ZIPS_INCLUDE) 2>/dev/null`
 	-rm ".__exclude_list.txt"