URL:
<http://savannah.gnu.org/bugs/?47150>
Summary: Silently fails on mistyped function names
Project: make
Submitted by: srivasta
Submitted on: Sun 14 Feb 2016 10:35:50 PM CST
Severity: 3 - Normal
Item Group: Bug
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Component Version: 4.1
Operating System: Any
Fixed Release: None
Triage Status: None
_______________________________________________________
Details:
Hi,
This was reported by a debian user. Please retain a CC to
774681-forwar...@bugs.debian.org so that the Debian BTS has a copy of your
input.
make ignores it when an undefined function is used in a makefile, and just
substitutes the empty string for the function call. Instead, it really,
really should fail and report a faulty makefile. Especially because there are
no user-defined functions so this unfriendly behavior doesn't even buy
anything in flexibility.
I have just spent an hour or so debugging a 20 line makefile. I used the
dirname function in one of my rules, only I forgot that for make it is spelled
just $(dir ...) and not ($dirname ...) . I was at the point of throwing
something at my computer, and I'm exaggerating only a tiny little bit.
Exemplar
########################################
all:
@echo $(dirname $(shell pwd))
########################################
Selently returns nothing.
Manoj
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