[CMake] Assembler files

[James Mansion]

I'd like to create a library from a mix of
assembler and C files.

I'm reading the book to try to determine how
to achieve this.  There seems to be perhaps two
possible approaches.

(Initially this is for Win32, and I have files for NASM
and MASM with extensions .nasm and .masm)

1) define new languages for NASM and MASM.

The example in the book (Fortran) suggests that I then need to
enable the language in the PROJECT declaration, though the
section on PROJECT suggests that all languages are enabled
by default. (?)  Presumably I'm safe if I use ENABLE_LANGUAGE?

Then I would just use ADD_LIBRARY (foo a.c b.nasm c.masm).

Is that right?


2) Define a whole set of custom commands that create an object
file:

SET( MASM_SOURCES b1.masm b2.masm )
FOREACH( SRC ${MASM_SOURCES} )
  ADD_CUSTOM_COMMAND(TARGET <obj for ${SRC}>
                     PRE_LINK
                     COMMAND masm ${SRC}
                    )
ENDFOREACH( SRC )

ADD_LIBRARY( foo a.c b1.obj b2.obj )

Is that right?


This actually seems clunky compared to make - what I'd like to
do is to define a command template that will transform a .masm
to a .obj.  I guess the language definition does this, but I'd
much prefer it if it could be localised into the particular
project where I'm going to use it in this case.


James