+check-local: $(FILES_TO_CHECK) gzip.doc.gz
+ { test '$(srcdir)' != . || GZIP_BINDIR=. ./zdiff -c gzip.doc.gz; }
+ GZIP_BINDIR=. ./zdiff -c $(srcdir)/gzip.doc $(srcdir)/gzip.doc
+ GZIP_BINDIR=. ./zdiff $(srcdir)/gzip.doc gzip.doc.gz
+ GZIP_BINDIR=. ./zdiff -c - $(srcdir)/gzip.doc <gzip.doc.gz
+ GZIP_BINDIR=. ./zdiff -c gzip.doc.gz gzip.doc.gz
+ GZIP_BINDIR=. ./zgrep -iV >/dev/null