Experimental Physics and
Industrial Control System

"Brian McAllister" <[email protected]> · Fri, 20 Apr 2001 22:55:30 -0400

>>> "CRP" == Chestnut, Ronald P <[email protected]> writes:

  CRP> I have a few sequence programs (.st) which include extensive .h
  CRP> files. For interesting (but probably not here) reasons the .h files
  CRP> carry the really fun code for a few .st files. One of my most common
  CRP> errors recently is to modify the .h file, do a make, and forget that
  CRP> I had to "touch" the .st files in order to force the remake of the
  CRP> sequence programs.

The right thing to do is to create a make dependency relationship between
the .o file and the .h file.  This will cause make to update the .o file by
recompiling the .st whenever the .h file changes.

You can do this manually by editing entries into Makefile.Vx like this:

snl_prog.o: some_header.h another_header.h yet_another.h

For .c files, you can do this by using "make depend", which generates a
file called DEPENDS in the O.<arch> directory which is then used by the
makefiles.

I'm not sure you can trick the epics makefiles into including a .st in the
list of files to make dependencies for, and since #includes have to be
escaped in SNL, I doubt the C compiler (used to generate dependency info)
would deal with them correctly.

----
Brian McAllister                    Controls Programmer/Beam Physicist
[email protected]                        MIT-Bates Linear Accelerator
(617) 253-9537                                           Middleton, MA

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System