I am currently having an issue getting the following Makefile commands
to work:

COMMONUTSOURCES= $(addprefix ./,$(shell ls $(COMMONUTDIR)/*.cpp))
COMMONUTOBJECTS =  $(COMMONUTSOURCES:%.cpp=%.o)



$(COMMONUTOBJECTS): $(@:.o=.cpp)
$(MAKE) -C $(COMMONUTDIR)

App: $(COMMONUTOBJECTS)
<BUILD APPLICATION>


My main issue is trying to get the object to build when the .cpp
file has been updated. (e.g. I have a file named DateRangeTest.cpp)

when I do a "make -p", I do not see that the "$(@:.o=.cpp)" statement
above does anything.  It shows up with no dependencies in the output of
the "make -p" command.   Any ideas on how I can do this?   I am running
Intel/Linux (RH).  Here is the version
information:

-------------------------------------------------------------
make -v
GNU Make version 3.79.1, by Richard Stallman and Roland McGrath.
Built for i686-pc-linux-gnu
Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

Report bugs to <bug-make@gnu.org>.
-------------------------------------------------------------

Any help would be greatly appreciated.

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liam_herron wrote:
> I am currently having an issue getting the following Makefile commands
> to work:
>

Start with the default target as the first target in the Makefile.

App:

> COMMONUTSOURCES= $(addprefix ./,$(shell ls $(COMMONUTDIR)/*.cpp))

COMMONUTSOURCES= $(wildcard $(COMMONUTDIR)/*.cpp)

- why add the ./ prefix ?

> COMMONUTOBJECTS =  $(COMMONUTSOURCES:%.cpp=%.o)
>
>
>
> $(COMMONUTOBJECTS): $(@:.o=.cpp)
>      $(MAKE) -C $(COMMONUTDIR)

$(COMMONUTOBJECTS): $(COMMONUTSOURCES)
$(MAKE) -C $(COMMONUTDIR)

I don't really know what you're doing there, why not just do :

.PHONY : App_all
App_all :
$(MAKE) -C $(COMMONUTDIR)

>
> App: $(COMMONUTOBJECTS)
>      <BUILD APPLICATION>

App: $(COMMONUTOBJECTS) App_all
<BUILD APPLICATION>


Did you try MakeXS ?  It does all this stuff for you.

>
>
> My main issue is trying to get the object to build when the .cpp
> file has been updated. (e.g. I have a file named DateRangeTest.cpp)

...

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