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| author | Michael Hirsch <scivision@users.noreply.gitlab.kitware.com> | 2022-11-27 20:15:18 -0500 |
|---|---|---|
| committer | Craig Scott <craig.scott@crascit.com> | 2022-11-29 09:12:17 +1100 |
| commit | f03a1833e2b0608ca053df819772759698fbcdb6 (patch) | |
| tree | e2210904c58d580c42e4693f3117684f3d36aaf3 | |
| parent | 00630bbac783152a7e22bcbbc86c70ab16dca28c (diff) | |
| download | cmake-f03a1833e2b0608ca053df819772759698fbcdb6.tar.gz | |
Help: Update compiler-specific add_compile_options() example and prose
Avoid hard-coding a warning-as-error flag now that CMake offers a
first class abstraction for that.
Also mention some relevant generator expressions which can be used
to provide even more specific targeting with language-specific flags.
Fixes: #24200
| -rw-r--r-- | Help/command/add_compile_options.rst | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/Help/command/add_compile_options.rst b/Help/command/add_compile_options.rst index ad653573d5..0ccebc679b 100644 --- a/Help/command/add_compile_options.rst +++ b/Help/command/add_compile_options.rst @@ -28,13 +28,16 @@ this command is in a compiler-specific conditional clause: .. code-block:: cmake if (MSVC) - # warning level 4 and all warnings as errors - add_compile_options(/W4 /WX) + # warning level 4 + add_compile_options(/W4) else() - # lots of warnings and all warnings as errors - add_compile_options(-Wall -Wextra -pedantic -Werror) + # additional warnings + add_compile_options(-Wall -Wextra -Wpedantic) endif() +To set per-language options, use the :genex:`$<COMPILE_LANGUAGE>` +or :genex:`$<COMPILE_LANGUAGE:languages>` generator expressions. + See Also ^^^^^^^^ |