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RE: Must be very simple
From: |
Paul D. Smith |
Subject: |
RE: Must be very simple |
Date: |
Mon, 20 Mar 2006 11:06:05 -0500 |
%% "PATTON, BILLY \(SBCSI\)" <address@hidden> writes:
pb> Probably has something to do with the fact that I'm using sh
pb> syntax where I should be using make syntax.
Yes.
pb> I've tried this:
pb> $(if -f $(SRC_TREE)/$(1)/make.include,$(shell echo "$(1)
pb> exists"),$(shell echo "$(1) not exists"))
And, what would lead you to believe that would work? :-). Is there any
mention of "-f" being a valid expression in the GNU make manual?
Remember, make != shell. Makefiles can CONTAIN shell scripts, in
certain very specific places, but make does not RUN shell scripts
itself. It forks a shell to do so (in certain very specific places).
pb> Is the -f $(SRC_TREE)/$(1)/make.include is causing the problem.
It's not "causing a problem", it's just not doing what you expect. Read
the docs for the if function in the GNU make manual and see how the
expression for the conditional is treated.
pb> Probably, How do I test for the existance of a file?
pb> $(shell -f $(SRC_TREE)/$(1)/make.include)
No. What happens when you type:
-f /some/dir/make.include
to your shell prompt? That's what'll happen when you give that command
to the shell.
pb> Just tried this
pb> $(if $(shell test -f $(SRC_TREE)/$(1)/make.include),$(shell echo "$(1)
pb> exists"),$(shell echo "$(1) not exists"))
No. See above.
pb> I don't need to include both. make.include files from the SRC_TREE and
pb> MAKEINC_DIR
pb> So from a make command how do I check for the existance of a file
pb> to include. I have a possible 450+
You haven't really described what you want to do. Are you trying to
include either one file or another? Or any file that already exists?
Or ... ?
The normal way to check for the existence of files is to use the
$(wildcard ...) function. To include all files ending in .d:
include $(wildcard *.d)
To include the first existing file in a list of files:
include $(firstword $(wildcard file1.mk file2.mk file3.mk))
etc.
--
-------------------------------------------------------------------------------
Paul D. Smith <address@hidden> Find some GNU make tips at:
http://www.gnu.org http://make.paulandlesley.org
"Please remain calm...I may be mad, but I am a professional." --Mad Scientist
- Must be very simple, PATTON, BILLY \(SBCSI\), 2006/03/20
- RE: Must be very simple, PATTON, BILLY \(SBCSI\), 2006/03/20
- RE: Must be very simple, PATTON, BILLY \(SBCSI\), 2006/03/20
- RE: Must be very simple,
Paul D. Smith <=
- RE: Must be very simple, PATTON, BILLY \(SBCSI\), 2006/03/20
- RE: Must be very simple, PATTON, BILLY \(SBCSI\), 2006/03/20
- RE: Must be very simple, PATTON, BILLY \(SBCSI\), 2006/03/20
- RE: Must be very simple, PATTON, BILLY \(SBCSI\), 2006/03/20
- RE: Must be very simple, PATTON, BILLY \(SBCSI\), 2006/03/20
- RE: Must be very simple, PATTON, BILLY \(SBCSI\), 2006/03/20