add environment files to source tarball

Author: isuruf

Makefile

@@ -111,6 +111,10 @@ bootstrap-clean:
 	rm -f src/doc/en/installation/*.txt
 	rm -rf src/doc/en/reference/spkg/*.rst
 	rm -f src/doc/en/reference/repl/*.txt
+	rm -f environment.yml
+	rm -f src/environment.yml
+	rm -f environment-optional.yml
+	rm -f src/environment-optional.yml
 
 # Remove absolutely everything which isn't part of the git repo
 maintainer-clean: distclean bootstrap-clean

bootstrap

@@ -190,7 +190,11 @@ save () {
 	build/make/Makefile-auto.in \
 	src/doc/en/installation/*.txt \
 	src/doc/en/reference/spkg/*.rst \
-	src/doc/en/reference/repl/*.txt
+	src/doc/en/reference/repl/*.txt \
+	environment.yml \
+	src/environment.yml \
+	environment-optional.yml \
+	src/environment-optional.yml
 
     # Update version
     echo "$NEWCONFVERSION" >$PKG/package-version.txt