I should have added that I'm on 14.04 LTS and the make version is 3.81.
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https://bugs.launchpad.net/bugs/483086
Title:
Incorrect per-target ?= variable affectations
Status in make-dfsg package in Ubuntu:
Confirmed
Bug description:
Binary package hint: make
I am running 9.10 on x86_64 (updated yesterday), make 3.81-6.
The following Makefile:
-------------------------------------------------
target1: OPTVAR?=/usr/local
target1:
echo "Value for $@ '$(OPTVAR)'."
target2:
echo "Value for $@ is '$(OPTVAR)'."
-------------------------------------------------
Make seems to behave badly with such a Makefile:
shell> make OPTVAR=x target1 target2
echo "Value for target1 '�!M'."
Value for target1 '�!M'.
echo "Value for target2 is '�!M'."
Value for target2 is '�!M'.
Whereas it has the expected behavior when passing OPTVAR through the
environment:
shell> env OPTVAR=x make target1 target2
echo "Value for target1 'x'."
Value for target1 'x'.
echo "Value for target2 is 'x'."
Value for target2 is 'x'.
It also behaves as expected when OPTVAR is left undefined:
shell> make target1 target2
echo "Value for target1 '/usr/local'."
Value for target1 '/usr/local'.
echo "Value for target2 is ''."
Value for target2 is ''.
I believe this is a regression from jaunty.
ProblemType: Bug
Architecture: amd64
Date: Sun Nov 15 14:57:25 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: make 3.81-6
ProcEnviron:
SHELL=/bin/zsh
PATH=(custom, user)
LANG=en_US.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: make-dfsg
Uname: Linux 2.6.31-14-generic x86_64
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