Problem with dependency files

[Mariusz Janczak]

Hello All,

 

First of all I'll describe the source structure... I have a list of modules that have the same look. In root folder there are api source files and within subfolders there are different implementations that realize api functions.

 

./module_a

./module_a/options

./module_a/api_1.c

./module_a/api_1.h

./module_a/impl_a/options

./module_a/impl_a/impl_a.c

./module_a/impl_a/impl_a.h

./module_a/impl_b/options

./module_a/impl_b/impl_b.c

./module_a/impl_b/impl_b.h

 

According to the configuration I select the implementation a or b. Of course I have two different source file lists.

 

To create the dependency files I use the buildin compilator feature and here is a problem. The compilator I use creates the target name using the DOS standard for folder path. The rule:

 

%.$(OBJ_SUFFIX): %.$(C_SUFFIX)

 

creates the following targets:

 

api_1.o: api_1.c

impl_a/impl_a.o: impl_a/impl_a.c

impl_b/impl_b.o: impl_b/impl_b.c

 

and after include the dependency files I receive:

 

api_1.o: api_1.c [dependency file list]

impl_a\impl_a.o: impl_a\impl_a.c [dependency file list]

impl_b\impl_b.o: impl_b\impl_b.c [dependency file list]

 

As You can see those targets don't match.

 

The first solution of this is creation all of the object files within root folder of module (the VPATH is needed):

 

api_1.o: api_1.c [dependency file list]

impl_a.o: impl_a\impl_a.c [dependency file list]

impl_b.o: impl_b\impl_b.c [dependency file list]

 

however the source files placed within subfolders can not have the same file name. It is a problem if I want to create a multi instanece application which uses both of the implementations and the source files have the same file names.

 

Maybe there is another solution that solves that problem.

 

Another problem I have is the question how write the target which depends on options file in the way as follow:

 

api_1.o: api_1.c options

impl_a.o: impl_a/impl_a.c options impl_a/options

impl_b.o: impl_b/impl_b.c options impl_b/options

 

Best Regards,

Mariusz Janczak (address@hidden)