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Defer check for sources within a target until generation.

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The `add_library` and `add_executable` commands can now be called with
no source-files and won't generate a warning or error message, as long
as source-files will be added later via the `target_sources` command.
If during the generation step still no sources are associated with
targets created by such calls a useful error message will be generated
and generation fails.

Targets of type `INTERFACE_LIBRARY`, `UTILITY` or `GLOBAL_TARGET` are
excluded from this check because we do not need sources for these target
types during generation.

Fixes: #16872
This commit is contained in:
Deniz Bahadir
2017-10-19 14:31:10 +02:00
committed by Brad King
parent 6e4e7c6547
commit 4e7f67383f
24 changed files with 97 additions and 75 deletions
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13
Help/command/add_executable.rst
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@@ -7,14 +7,15 @@ Add an executable to the project using the specified source files.
add_executable(<name> [WIN32] [MACOSX_BUNDLE]
[EXCLUDE_FROM_ALL]
source1 [source2 ...])
[source1] [source2 ...])
Adds an executable target called ``<name>`` to be built from the source
files listed in the command invocation. The ``<name>`` corresponds to the
logical target name and must be globally unique within a project. The
actual file name of the executable built is constructed based on
conventions of the native platform (such as ``<name>.exe`` or just
``<name>``).
files listed in the command invocation. (The source files can be omitted
here if they are added later using :command:`target_sources`.) The
``<name>`` corresponds to the logical target name and must be globally
unique within a project. The actual file name of the executable built is
constructed based on conventions of the native platform (such as
``<name>.exe`` or just ``<name>``).
By default the executable file will be created in the build tree
directory corresponding to the source tree directory in which the

11
Help/command/add_library.rst
View File

@@ -14,13 +14,14 @@ Normal Libraries
add_library(<name> [STATIC | SHARED | MODULE]
[EXCLUDE_FROM_ALL]
source1 [source2 ...])
[source1] [source2 ...])
Adds a library target called ``<name>`` to be built from the source files
listed in the command invocation. The ``<name>`` corresponds to the
logical target name and must be globally unique within a project. The
actual file name of the library built is constructed based on
conventions of the native platform (such as ``lib<name>.a`` or
listed in the command invocation. (The source files can be omitted here
if they are added later using :command:`target_sources`.) The ``<name>``
corresponds to the logical target name and must be globally unique within
a project. The actual file name of the library built is constructed based
on conventions of the native platform (such as ``lib<name>.a`` or
``<name>.lib``).
``STATIC``, ``SHARED``, or ``MODULE`` may be given to specify the type of