summaryrefslogtreecommitdiffstats
path: root/Help/policy/CMP0001.rst
diff options
context:
space:
mode:
Diffstat (limited to 'Help/policy/CMP0001.rst')
-rw-r--r--Help/policy/CMP0001.rst19
1 files changed, 19 insertions, 0 deletions
diff --git a/Help/policy/CMP0001.rst b/Help/policy/CMP0001.rst
new file mode 100644
index 0000000..344f1e2
--- /dev/null
+++ b/Help/policy/CMP0001.rst
@@ -0,0 +1,19 @@
+CMP0001
+-------
+
+CMAKE_BACKWARDS_COMPATIBILITY should no longer be used.
+
+The OLD behavior is to check CMAKE_BACKWARDS_COMPATIBILITY and present
+it to the user. The NEW behavior is to ignore
+CMAKE_BACKWARDS_COMPATIBILITY completely.
+
+In CMake 2.4 and below the variable CMAKE_BACKWARDS_COMPATIBILITY was
+used to request compatibility with earlier versions of CMake. In
+CMake 2.6 and above all compatibility issues are handled by policies
+and the cmake_policy command. However, CMake must still check
+CMAKE_BACKWARDS_COMPATIBILITY for projects written for CMake 2.4 and
+below.
+
+This policy was introduced in CMake version 2.6.0. 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.