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| author | Brad King <brad.king@kitware.com> | 2020-11-19 21:12:01 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2020-12-02 16:39:11 (GMT) |
| commit | 48aac247e922409b4dfe7189521661df4b0583d1 (patch) | |
| tree | 301bf76353bb9a6c00293163358b272f1b50d317 /Help/prop_sf | |
| parent | 2e67a75acdbdec24a4e14b2550b846f3ca916de0 (diff) | |
| download | CMake-48aac247e922409b4dfe7189521661df4b0583d1.zip CMake-48aac247e922409b4dfe7189521661df4b0583d1.tar.gz CMake-48aac247e922409b4dfe7189521661df4b0583d1.tar.bz2 | |
Compile with explicit language flag when source LANGUAGE property is set
This change was originally made by commit 74b1c9fc8e (Explicitly specify
language flag when source LANGUAGE property is set, 2020-06-01,
v3.19.0-rc1~722^2), but it was reverted by commit 30aa715fac (Revert
"specify language flag when source LANGUAGE property is set",
2020-11-19) to restore compatibility with pre-3.19 behavior.
Implement the change again, but add policy CMP0119 to make this change
while preserving compatibility with existing projects.
Note that the `Compiler/{Clang,Intel,MSVC}-CXX` modules do not need to
specify `-TP` for their MSVC-like variants because we already use the
flag in `CMAKE_CXX_COMPILE_OBJECT`. Similarly for `Compiler/XL-CXX`
and `Platform/Windows-Embarcadero`.
Note also that this does not seem possible to implement for XL C.
Even with `-qsourcetype=c`, `xlc` complains about an unknown suffix:
`1501-218 (W) file /.../AltExtC.zzz contains an incorrect file suffix`.
It returns non-zero even with `-qsuppress=1501-218`.
Co-Author: Robert Maynard <robert.maynard@kitware.com>
Fixes: #14516, #20716
Diffstat (limited to 'Help/prop_sf')
| -rw-r--r-- | Help/prop_sf/LANGUAGE.rst | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Help/prop_sf/LANGUAGE.rst b/Help/prop_sf/LANGUAGE.rst index 1dd2554..f14c176 100644 --- a/Help/prop_sf/LANGUAGE.rst +++ b/Help/prop_sf/LANGUAGE.rst @@ -1,7 +1,7 @@ LANGUAGE -------- -What programming language is the file. +Specify the programming language in which a source file is written. A property that can be set to indicate what programming language the source file is. If it is not set the language is determined based on @@ -9,3 +9,9 @@ the file extension. Typical values are ``CXX`` (i.e. C++), ``C``, ``CSharp``, ``CUDA``, ``Fortran``, ``ISPC``, and ``ASM``. Setting this property for a file means this file will be compiled. Do not set this for headers or files that should not be compiled. + +.. versionchanged:: 3.20 + Setting this property causes the source file to be compiled as the + specified language, using explicit flags if possible. Previously it + only caused the specified language's compiler to be used. + See policy :policy:`CMP0119`. |