summaryrefslogtreecommitdiff
path: root/Help/policy/CMP0049.rst
diff options
context:
space:
mode:
Diffstat (limited to 'Help/policy/CMP0049.rst')
-rw-r--r--Help/policy/CMP0049.rst25
1 files changed, 25 insertions, 0 deletions
diff --git a/Help/policy/CMP0049.rst b/Help/policy/CMP0049.rst
new file mode 100644
index 000000000..a3ce4b1fa
--- /dev/null
+++ b/Help/policy/CMP0049.rst
@@ -0,0 +1,25 @@
+CMP0049
+-------
+
+Do not expand variables in target source entries.
+
+CMake 2.8.12 and lower performed and extra layer of variable expansion
+when evaluating source file names:
+
+.. code-block:: cmake
+
+ set(a_source foo.c)
+ add_executable(foo \${a_source})
+
+This was undocumented behavior.
+
+The OLD behavior for this policy is to expand such variables when processing
+the target sources. The NEW behavior for this policy is to issue an error
+if such variables need to be expanded.
+
+This policy was introduced in CMake version 3.0.
+CMake version |release| warns when the policy is not set and uses
+OLD behavior. Use the cmake_policy command to set it to OLD or
+NEW explicitly.
+
+.. include:: DEPRECATED.txt