makefile: fix sed --promote-install-files dune arg retrieving

Get only the option itself in help, don't get appearing ones in text blocks
ocaml · Apr 14, 2020 · 841ecb3 · 841ecb3
1 parent c9afcad
commit 841ecb3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Makefile b/Makefile
@@ -24,7 +24,7 @@ OPAMINSTALLER = ./opam-installer$(EXE)
 ALWAYS:
 	@
 
-DUNE_PROMOTE_ARG := $(shell dune build --help=plain 2>/dev/null | sed -ne 's/.*\(--promote-install-files\).*/ \1/p')
+DUNE_PROMOTE_ARG := $(shell dune build --help=plain 2>/dev/null | sed -ne 's/^[[:space:]]*\(--promote-install-files\)[[:space:]]*$$/ \1/p')
 DUNE_DEP = $(DUNE_EXE)
 JBUILDER_ARGS ?= 
 DUNE_ARGS ?= $(JBUILDER_ARGS)