Re: [Emc-developers] Building a new C++ kinematics module

[Michael H. <ma...@ma...>]

Frank,

I think the Makefile rules will not build a RT module out of C++ code since the kernel environment is not geared for C++ runtime support

any chance you recode this into plain C ?

-m

Am 11.11.2013 um 04:42 schrieb Frank Tkalcevic <fr...@fr...>:

> I'm trying to add a new C++ kinematics module.  If I just put my .cc file in
> the src/emc/kinematics directory, nothing happens.
> 
> 
> 
> I looked in src/Makefile and found these lines (I'm building the simulator
> at the moment).
> 
> 
> 
> $(sort $(RTOBJS)) : objects/rt%.o : %.c
> 
>    $(ECHO) Compiling realtime $<
> 
>    @mkdir -p $(dir $@)
> 
>    $(Q)$(CC) -c $(OPT) $(DEBUG) -DSIM -DSIMULATOR -DRTAPI $(EXTRA_CFLAGS)
> $< -o $@
> 
> 
> 
> 
> 
> Firstly, I've never seen a make line with 3 colons, so I'm not really sure
> what this does.  If I duplicate the block and change the rule to look for
> .cc and run the CXX compiler, like this.
> 
> 
> 
> 
> 
> $(sort $(RTOBJS)) : objects/rt%.o : %.cc
> 
>    $(ECHO) Compiling realtime $<
> 
>    @mkdir -p $(dir $@)
> 
>    $(Q)$(CXX) -c $(OPT) $(DEBUG) -DSIM -DSIMULATOR -DRTAPI $(EXTRA_CFLAGS)
> $< -o $@
> 
> 
> 
> 
> 
> I get this repeated for all objects/rt* but still no build.
> 
> 
> 
> Makefile:880: warning: overriding commands for target
> `objects/rtobjects/hal/components/xor2.o'
> 
> Makefile:875: warning: ignoring old commands for target
> `objects/rtobjects/hal/components/xor2.o
> 
> 
> 
> It appears the .c and .cc rules are the same.  I using the 2.5.3 source.
> Any ideas?
> 
> 
> 
> Frank
> 
> 
> 
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