File: aux_source_directory.rst

package info (click to toggle)
cmake 3.18.4-2%2Bdeb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 95,096 kB
  • sloc: ansic: 326,336; cpp: 218,301; yacc: 3,207; sh: 3,067; python: 2,637; lex: 1,324; asm: 371; lisp: 273; f90: 240; objc: 205; perl: 198; java: 197; xml: 178; cs: 140; fortran: 126; makefile: 84; javascript: 83; pascal: 63; tcl: 55; php: 25; ruby: 22
file content (24 lines) | stat: -rw-r--r-- 1,085 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
aux_source_directory
--------------------

Find all source files in a directory.

.. code-block:: cmake

  aux_source_directory(<dir> <variable>)

Collects the names of all the source files in the specified directory
and stores the list in the ``<variable>`` provided.  This command is
intended to be used by projects that use explicit template
instantiation.  Template instantiation files can be stored in a
``Templates`` subdirectory and collected automatically using this
command to avoid manually listing all instantiations.

It is tempting to use this command to avoid writing the list of source
files for a library or executable target.  While this seems to work,
there is no way for CMake to generate a build system that knows when a
new source file has been added.  Normally the generated build system
knows when it needs to rerun CMake because the ``CMakeLists.txt`` file is
modified to add a new source.  When the source is just added to the
directory without modifying this file, one would have to manually
rerun CMake to generate a build system incorporating the new file.