PATH in makefile

[ngmachado]

Hi all,

I bet this one is easy... but not for me.

I want to change the current PATH variable in a makefile.

For instance:



$ echo $PATH
/usr/bin:/usr/sbin

$ PATH=$PATH:/my/dir
$ echo $PATH
/usr/bin:/usr/sbin:/my/dir


After I quit, the /my/dir will be lost but... no problem!
Now I wanna replicate this behaviour in a makefile, I tried the following code but it didn't work:



test:
PATH=$(PATH):/my/dir


If I run it, I get:


$ make test
PATH=/usr/bin:/usr/sbin:/my/dir
$ echo $PATH
/usr/bin:/usr/sbin



Any help will be greatly appreciated. Thanks.

[ngmachado]

Well,

After reading a bit more on this, and getting no answers here, I might conclude that it's not possible to change the PATH environment variable from a makefile.

Cheers.

[dwhitney67]

In your Makefile, statements that appear below entry-points (e.g. test) will be executed. I don't think that is what you want (with respect to setting the PATH).

To set the PATH variable, within the Makefile only, use something like:


PATH := $(PATH):/my/dir

test:
@echo my new PATH = $(PATH)


P.S. The @ symbol is used so that the echo statement itself is not shown on the terminal.