AMU and Suffixes

Anyone know why AMU seems to only like using the c++ suffix, and not cpp?

Works:

SUFFIXES: .o .c++

.c++.o:; g++ $(CPPflags) $< 

Doesn’t work:

SUFFIXES: .o .cpp

.cpp.o:; g++ $(CPPflags) $< 

I’ve been using c++ and h++ extentions on RISC OS up to now, but cross platform stuff has standardised on cpp and hpp, and AMU complains it doesn’t know how to build the o file.

Looking at the amu program with ARMalyser, near the start is the string:-

aof o s c c++ f p l h x bas pas cmhg

@ David

So the list of type names is hard coded – who can fix this for me?

ROOL on next DDE release maybe? Meanwhile edit the binary c++ to cpp? Unless you need both…

I do have a mixture of projects, the RISC OS only ones are c++ and h (should be h++ but AMU presented that), the cross platform stuff is cpp and hpp so needs a little bit more than replacing a couple of characters in the binary. I’ll try running it through ARMalyser which will allow me to expand the string to have all the necessary extensions.

I’ll try running it through ARMalyser which will allow me to expand the string to have all the necessary extensions.

That sounds…like hard work. Why not use .SUFFIXES to declare your own suffixes of interest?
It’s what the shared makefiles do to add cpp to the list (or just include StdRules directly).

Appendix B of the desktop tools manual explains more, but it’s much the same as GNU make SUFFIXES.

Damn just noticed that what I’ve got is just SUFFIXES not .SUFFIXES

Checking hundreds of my make files, it’s correct in about 25% of them, but at some point the dot got deleted, and the file was then cloned to make the other 75%. Using SUFFIXES without the dot doesn’t cause an error, so I was none the wiser.

So thanks for that!

Of course now I can get AMU to do cpp and hpp, I find crappy CFront doesn’t know how to include a .hpp file. So that means moving to gcc4, and glacial compilation times (oh for some disc caching).

but cross platform stuff has standardised on cpp and hpp

I like the simple cc and hh, there are only 26 letters in the alphabet why so greedy?
cpp sounds like c preprocessor.
For casual users, C would be a better language without several ways of doing the same thing.

cpp and hpp came about because some filing systems couldn’t do c++ and h++, so the plusses became p’s.

I’m now realising why the world has fallen out of favour with C/C++ and my skills have become niche :(