[CMake] FILE command and generating files.

[Tanner Lovelace]

Greetings,

I think this should be simple, but it just doesn't seem to be
working for me and a web search has failed me so here's another
question for the list.

I'm trying to generate a file using a program that takes a list
of files (a header file and some source files) as input.
I tried doing this:

# Get full paths to the input files and put them into tmp.txt
FILE(WRITE tmp.txt "${PROJ_SOURCE_DIR}/include/msgs.h")
FOREACH(c_file ${STATIC_SRCS} ${BASE_SRCS})
  FILE(APPEND tmp.txt "${CMAKE_CURRENT_SOURCE_DIR}/${c_file}")
ENDFOREACH(c_file)
ADD_CUSTOM_COMMAND(output.txt ALL
  ${CMAKE_BINARY_DIR}/bin/command -f tmp.txt)

My problem, however, is that the file commands don't seem to
do anything at all.  Do I need to add them to a custom command
or perhaps make a .cmake file that gets executed by the makefile?

Also, is there a better way to get full paths to the files?  The
source varables are defined like this:

SET(STATIC_SRCS
file1.c
file2.c
win32/file3.c
[...etc...]
)

So I can pass them directly into the library target I'm
also creating in this directory.  However, I couldn't think
of an easy way to transform that into full paths to the files.

Any help would be appreciated.

Thanks very much.

Cheers,
Tanner Lovelace