From 581a160c11dd3de66d9cd1a6e01c0641909546ef Mon Sep 17 00:00:00 2001 From: Eelco Dolstra Date: Fri, 14 Feb 2014 20:12:04 +0100 Subject: [PATCH] Add a function for looking up programs in $PATH --- functions.mk | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/functions.mk b/functions.mk index 51f645701..1287e4321 100644 --- a/functions.mk +++ b/functions.mk @@ -5,3 +5,7 @@ rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) $(filter $(subst # Given a file name, produce the corresponding dependency file # (e.g. ‘foo/bar.o’ becomes ‘foo/.bar.o.dep’). filename-to-dep = $(dir $1).$(notdir $1).dep + +# Return the full path to a program by looking it up in $PATH, or the +# empty string if not found. +find-program = $(shell for i in $$(IFS=: ; echo $$PATH); do p=$$i/$(strip $1); if [ -e $$p ]; then echo $$p; break; fi; done)