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"Jaemin Kang" <[EMAIL PROTECTED]> writes:
> I'm trying to compile my source files on Linux(Redhat 9).
[...]
> But I got an error message.
>
> make: *** No rule to make target 'Object.o' needed by 'all'. Stop.
>
> OUTPUT_DIR = ..\..\..\objs
> THERON_SRC_DIR = ..\..\..\src
Fix your directory separators. It's '/', unless you really wanted
....objs ('\' escapes the following char).
> ARM_CC = arm-elf-gcc
> OBJ_CMD = -o
> OUT = -c
> OPT = -O2
> CFLAGS = $(OUT) $(OPT)
There's a lot of redundancy here:
CC = arm-elf-gcc
CFLAGS = -O2
> SRC_FILE = $(@F:.o=.c)
> OBJ_FILE = $(OBJ_CMD) $(OUTPUT_DIR)\$(@F)
>
> .SUFFIXES :
> .SUFFIXES : .o .c
>
> {$(THERON_SRC_DIR)}.c.o :
> @echo -----------------------------------------------------
> @echo OBJECT $(@F)
> $(ARM_CC) $(CFLAGS) $(OBJ_FILE) $(SRC_FILE)
> @echo -----------------------------------------------------
This is largely non-standard. Try
%.o: %.c
$(CC) $(CFLAGS) -o $@ -c $<
For "Object.o", this will run
arm-elf-ecc -O2 -o Object.o -c Object.c
> THERON_OBJS = \
> Object.o \
> File.o \
> AnsiFile.o \
> BrewFile.o \
> Memory.o \
> AnsiMemory.o \
> BrewMemory.o \
> brew_stdutil.o
This is OK. As a stylistic and RSI-prevention measure, I wouldn't use
mixed-case filenames. Use spaces or underscores as separators.
THERON_OBJS = \
object.o \
file.o \
ansi-file.o \
brew-file.o \
memory.o \
ansi-memory.o \
brew-memory.o \
brew-stdutil.o
> all : $(THERON_OBJS)
Err.. don't you want to end up with an executable or library at this
point? If "all" is the default rule, you might want to make it the
first.
myprog: $(THERON_OBJS)
$(CSS) -o $@ $^ $(LIBS)
where $(LIBS) are dependent libraries.
> clean :
> @echo
> @echo CLEAN
> -rm /f $(THERON_OBJS)
> @echo
Why not just
clean :
-rm /f $(THERON_OBJS)
?
> It seems that The GNU make doen't understand below line.
>
> '{$(THERON_SRC_DIR)}.c.o :'
>
> My source files and the makefile are in different directory.
>
> Can anyone tell me how to handle this?
Use autoconf and automake, and let them handle separate source and
object directories, cross-compiling and cross-platform portability for
you. You might also want to read the GNU make reference manual; it's
very good.
Regards,
Roger
- --
Roger Leigh
Printing on GNU/Linux? http://gimp-print.sourceforge.net/
Debian GNU/Linux http://www.debian.org/
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