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Diffstat (limited to 'Help/policy/CMP0049.rst')
| -rw-r--r-- | Help/policy/CMP0049.rst | 25 |
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diff --git a/Help/policy/CMP0049.rst b/Help/policy/CMP0049.rst new file mode 100644 index 0000000..49b20be --- /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 an extra layer of variable expansion +when evaluating source file names:: + + set(a_source foo.c) + add_executable(foo \${a_source}) + +.. note: no cmake highlighting since this syntax is deprecated + +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 :command:`cmake_policy` command to set +it to ``OLD`` or ``NEW`` explicitly. + +.. include:: DEPRECATED.txt |