summaryrefslogtreecommitdiffstats
path: root/Help/command/target_compile_definitions.rst
diff options
context:
space:
mode:
authorRuslan Baratov <ruslan_baratov@yahoo.com>2018-03-20 14:13:41 (GMT)
committerBrad King <brad.king@kitware.com>2018-03-20 18:06:15 (GMT)
commit3af1daa186f01f1538cf9a7541e9269ac0c6e95a (patch)
tree5a95ea6dcc3e7dc0cfd2f3a62b9bac3b8a42ba6b /Help/command/target_compile_definitions.rst
parent5831b6a2aec74cd9d1d10b1d047da8fa0411c828 (diff)
downloadCMake-3af1daa186f01f1538cf9a7541e9269ac0c6e95a.zip
CMake-3af1daa186f01f1538cf9a7541e9269ac0c6e95a.tar.gz
CMake-3af1daa186f01f1538cf9a7541e9269ac0c6e95a.tar.bz2
Help: Document target_compile_definitions handling of -D
Add an example of using the `target_compile_definitions` command and a note about usage of ``-D`` in items.
Diffstat (limited to 'Help/command/target_compile_definitions.rst')
-rw-r--r--Help/command/target_compile_definitions.rst10
1 files changed, 10 insertions, 0 deletions
diff --git a/Help/command/target_compile_definitions.rst b/Help/command/target_compile_definitions.rst
index 3709e7a..a740117 100644
--- a/Help/command/target_compile_definitions.rst
+++ b/Help/command/target_compile_definitions.rst
@@ -27,3 +27,13 @@ Arguments to ``target_compile_definitions`` may use "generator expressions"
with the syntax ``$<...>``. See the :manual:`cmake-generator-expressions(7)`
manual for available expressions. See the :manual:`cmake-buildsystem(7)`
manual for more on defining buildsystem properties.
+
+Any leading ``-D`` on an item will be removed. Empty items are ignored.
+For example, the following are all equivalent:
+
+.. code-block:: cmake
+
+ target_compile_definitions(foo PUBLIC FOO)
+ target_compile_definitions(foo PUBLIC -DFOO) # -D removed
+ target_compile_definitions(foo PUBLIC "" FOO) # "" ignored
+ target_compile_definitions(foo PUBLIC -D FOO) # -D becomes "", then ignored