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Diffstat (limited to 'share/cmake-3.18/Help/policy/CMP0054.rst')
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diff --git a/share/cmake-3.18/Help/policy/CMP0054.rst b/share/cmake-3.18/Help/policy/CMP0054.rst deleted file mode 100644 index 1e000a6..0000000 --- a/share/cmake-3.18/Help/policy/CMP0054.rst +++ /dev/null @@ -1,52 +0,0 @@ -CMP0054 -------- - -Only interpret :command:`if` arguments as variables or keywords when unquoted. - -CMake 3.1 and above no longer implicitly dereference variables or -interpret keywords in an :command:`if` command argument when -it is a :ref:`Quoted Argument` or a :ref:`Bracket Argument`. - -The ``OLD`` behavior for this policy is to dereference variables and -interpret keywords even if they are quoted or bracketed. -The ``NEW`` behavior is to not dereference variables or interpret keywords -that have been quoted or bracketed. - -Given the following partial example: - -:: - - set(A E) - set(E "") - - if("${A}" STREQUAL "") - message("Result is TRUE before CMake 3.1 or when CMP0054 is OLD") - else() - message("Result is FALSE in CMake 3.1 and above if CMP0054 is NEW") - endif() - -After explicit expansion of variables this gives: - -:: - - if("E" STREQUAL "") - -With the policy set to ``OLD`` implicit expansion reduces this semantically to: - -:: - - if("" STREQUAL "") - -With the policy set to ``NEW`` the quoted arguments will not be -further dereferenced: - -:: - - if("E" STREQUAL "") - -This policy was introduced in CMake version 3.1. -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 |