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Message-ID:	<415B2450.3020706@inti.gov.ar>
Date:	Wed, 29 Sep 2004 18:08:32 -0300
From:	Salvador Eduardo Tropea <salvador AT inti DOT gov DOT ar>
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To:	djgpp AT delorie DOT com, jansb000 AT planet DOT nl
Subject:	Re: Problem with cross-platform app: MAKE vs NMAKE
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jansb000 wrote:

>I like the idea of splitting the makefile into a "header-part" and a
>"dependency part". The dependency part can be the same for all flavors of
>make.
>
>If I understand you correctly you use wrappers in part 1 like this:
>SOURCE_NAME=$**         /  $@
>1ST_PREREQ=$ ???          / = $<
>ALL_PREREQ=$**             / = $^
>
>Then in part 2 you say:
>my_target.o: my_target.cpp my_target.h
>...cpp -c $(1st_prereq)
>my_target.exe: my_target.o other.o
>...cpp -o $(source_name) $(all_prereq) -libraries
>  
>

Yes, but with more levels of abstraction:

ALL_PREREQ=$^
....
RHIDE_COMPILE_ARCHIVE=$(RHIDE_AR) $(RHIDE_ARFLAGS) $(OUTFILE)\
        $(ALL_PREREQ)
....
librhtv$(ExLIB):: \
        ../makes/obj/beep$(ExOBJ) \
        ../makes/obj/drivevalid$(ExOBJ) \
..... More dependencies
        $(RHIDE_COMPILE_ARCHIVE)

>Questions:
>- What is the NMAKE code for referencing the first prerequisite?
>  
>

I donīt remmember. Look in the MSN development site, it have an nmake 
reference. I think the free BC++ compiler also have some docs about the 
make tool.
For my case $** is ok. But thatīs because I have 2 sets of dependencies:
1) For development, targets depends on sources and headers.
2) For users, targets depends just on their sources.
For BC++ and MSVC I always use (2).

>- How is the makefile part 1 referencing to part 2? As an include?
>  
>

Yes, but that could be tricky because the GNU command is "include" and 
the nmake command is "!include".
In my case the makefiles are nested and hence the dependencies file can 
pull another dependencies. As the directive is different I just define 
variables like INCLUDE00, INCLUDE01, etc. Then I pull the defined 
includes from part 1.

SET

-- 
Salvador Eduardo Tropea (SET). (Electronics Engineer)
Visit my home page: http://welcome.to/SetSoft or
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Alternative e-mail: set AT computer DOT org set AT ieee DOT org 
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