[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
PATSUBST and FILTER help
From: |
Wehr Bruce |
Subject: |
PATSUBST and FILTER help |
Date: |
Mon, 4 Aug 2003 17:52:35 -0400 |
Hello,
I have a friend who uses GMAKE for Windows, and came to me with the following
question. In order for me to continue my façade as Unix Guru, I humbly come to
you for answers. I haven't used GMAKE (easy on me, now :), so I'm not used to
some of its powerful additional features. But, I have read the docs, and have
failed to spot anything obvious.
Here's the pertinent portions of his cry for help:
=== QUOTE ===
Sorry to bother you with this, but I don't know anyone else to ask. The
question is about using the GNU make utility GMAKE. I use it all the
time, but have run into a bit of a snag that I can't figure out from the
docs. so here go's:
I have a makefile (attached) it used to build 3 different "flavors" of
menu code. In order to build a list of object file needed to for each
flavor, I use the following cryptic command (this should be right up
your ally):
OBJS= $(patsubst %.c,%.obj,$(filter %.c,$(CFILES))) \
$(patsubst %.asm,%.obj,$(filter %.asm,$(AFILES)))
The rule to make all the objects is as follows:
%.obj: %.c $(HFILES)
$(CC) $(FLAGS) $< $(CPU) $(CFLAGS) $(ST10DEF)
%.obj: %.asm
$(CC) $(FLAGS) $< $(ASMFLAGS) $(ST10DEF)
Now, everything works fine UNLESS there is currently no .OBJ file for a
corresponding .C or .ASM file!
In this case I get the error message: No rule to make foo.obj needed by
MenuXXX.out.
If foo.obj already exists, it will recompile foo.c just fine.
This is very perplexing.
Don't spend allot of time on it, I just thought that maybe you could see
something obvious.
=== END QUOTE ===
Now, since I can't see anything obvious, but desparately want to make it look
like I did :), I've come to the *real* experts ... just don't tell my friend.
:)
Thanks to all for your time and attention.
<>< Bruce Wehr
<<...OLE_Obj...>>
INFORMATION SYSTEMS - PASSENGER CARS
2400 EXECUTIVE HILLS BOULEVARD
AUBURN HILLS, MICHIGAN 48326
address@hidden <mailto:address@hidden>
(248)209-4352 DESK
(248)209-7312 FAX
- PATSUBST and FILTER help,
Wehr Bruce <=