On Sun, Apr 21, 2019 at 9:19 AM Junio C Hamano <gitster@xxxxxxxxx> wrote: > diff --git a/Makefile b/Makefile > @@ -822,12 +822,12 @@ VCSSVN_LIB = vcs-svn/lib.a > -LIB_H := $(shell git ls-files '*.h' ':!t/' ':!Documentation/' 2>/dev/null || \ > +LIB_H := $(shell (git ls-files '*.h' ':!t/' ':!Documentation/' 2>/dev/null || \ > $(FIND) . \ > -name .git -prune -o \ > -name t -prune -o \ > -name Documentation -prune -o \ > - -name '*.h' -print) > + -name '*.h' -print) | sort -u) GNU make's "sort" function also de-dups, so an alternative is: LIB_H := $(sort $(shell ...))