URL:
<http://savannah.gnu.org/bugs/?36486>
Summary: Overrides and append to pattern specific variables
Project: make
Submitted by: None
Submitted on: Thu 17 May 2012 15:34:27 UTC
Severity: 3 - Normal
Item Group: Bug
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Component Version: 3.82
Operating System: POSIX-Based
Fixed Release: None
Triage Status: None
_______________________________________________________
Details:
Hi,
Using a target pattern to append to an override variable is not behaving as I
expect. The behaviour is also different depending on whether the override
variable is defined on the command line or inside a makefile. The problem is
demonstrated by the following makefile:
override MO=mo
all: ; @echo 'MO=$(MO), CLO=$(CLO)'
a%: MO += add_to_mo
a%: CLO += add_to_clo
I build it with the following command:
make CLO=clo
The output I see is:
MO=mo add_to_mo, CLO=clo clo
But what I expected to see was:
MO=mo, CLO=clo
It seems the pattern specific append is affecting the value of the override
variables, however I don't think that should be possible unless the pattern
specific append it also given the override attribute. The case with the CLO
variable seems particularly strange as the effect is to double the globally
defined value.
regards,
Rob.
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?36486>
_______________________________________________
Message sent via/by Savannah
http://savannah.gnu.org/
_______________________________________________
Bug-make mailing list
Bug-make@gnu.org
https://lists.gnu.org/mailman/listinfo/bug-make
