Hi Paul,
I find this peculiar thing happening in gmake. As per your mail the env variable
should not expanded. But what happens here is
the following:
bhaskar@hpas10 331> cat makefile
LISTROOT_FILENAME = /home/bhaskar/test.txt
REQFILE_LST := $(shell cat $(LISTROOT_FILENAME))
REQFILES := $(strip $(REQFILE_LST))
LIST_OF_FILES := $(foreach file, $(REQFILES), $(wildcard $(file)))
default:
@echo $(LISTROOT_FILENAME)
@echo $(REQFILES)
@echo $(LIST_OF_FILES)
bhaskar@hpas10 332> echo $_ROOT
/usr
bhaskar@hpas10 333> cat test.txt
/home/bhaskar $_ROOT /tmp
You can see the output of the REQFILES has been expanded to /usr. The list REQFILES
contains /usr init but this
is not transferred onto the wildcard function. I am wondering if the list has the
expanded list in it should not matter.
Please correct if I am wrong here.
bhaskar@hpas10 334> gmake
/home/bhaskar/test.txt
/home/bhaskar /usr /tmp
/home/bhaskar /tmp
bhaskar@hpas10 335>
regards
bhaskar
"Paul D.
Smith" To: Bhaskar G/BTC/SC/PHILIPS@EMEA2
<[EMAIL PROTECTED] cc: [EMAIL PROTECTED]
rg> Subject: Re: details required on wildcard
function
Sent by:
help-make-adm Classification:
[EMAIL PROTECTED]
25-02-2002
18:52
Please
respond to
"Paul D.
Smith"
%% Regarding details required on wildcard function; you wrote:
bg> I am trying to get a list of files required, from a file which
bg> contains the root location of the required files. The contents of
bg> file can be any thing
bg> 1. absolute location
bg> 2. An env variable pointing to the absolute location.
bg> When I try to use wildcard function, wildcard gives only the files
bg> present in the root location whose absolute location is given, but
bg> doesnot list the files at root location obtained from the
bg> environment variable.
Definitely. And why should it?
The wildcard function is a builtin function in GNU make (using the GNU C
runtime globbing functions directly). Make does not invoke a shell or
anything to handle wildcarding.
So, the shell does not expand your environment variables; instead if you
had a filename like $ROOT/foodir make looks for path with the literal
string '$ROOT/foodir', not whatever $ROOT expands to.
--
-------------------------------------------------------------------------------
Paul D. Smith <[EMAIL PROTECTED]> Find some GNU make tips at:
http://www.gnu.org http://www.paulandlesley.org/gmake/
"Please remain calm...I may be mad, but I am a professional." --Mad Scientist
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