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authorBrad King <brad.king@kitware.com>2008-03-07 20:30:35 (GMT)
committerBrad King <brad.king@kitware.com>2008-03-07 20:30:35 (GMT)
commit5233b75a777b0f3379408291e6f32b0eb15c2f54 (patch)
tree538d48ac384f0129059e3e1c20f2a46e9a3949cf /Source/cmCMakePolicyCommand.h
parentfcce2f3b61ca5a3484d41aa804dc09b39f16f8cf (diff)
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ENH: Improve handling of old-style compatibility.
- Remove CMP_0001 (no slash in target name) and restore old CMAKE_BACKWARDS_COMPATIBILITY check for it - Replace all checks of CMAKE_BACKWARDS_COMPATIBILITY with cmLocalGenerator::NeedBackwardsCompatibility calls - Create new CMP_0001 to determine whether or not CMAKE_BACKWARDS_COMPATIBILITY is used. (old = use, new = ignore) - Show CMAKE_BACKWARDS_COMPATIBILITY in cache only when CMP_0001 is set to OLD or WARN - Update documentation of cmake_policy and cmake_minimum_required to indicate their relationship and the 2.4 version boundary - When no cmake policy version is set in top level makefile implicitly call cmake_policy(VERSION 2.4) which restores CMAKE_BACKWARDS_COMPATIBILITY and other 2.4 compatibility - Fix tests MakeClean and Preprocess to call cmake_policy(VERSION 2.6) because they depend on new policies
Diffstat (limited to 'Source/cmCMakePolicyCommand.h')
-rw-r--r--Source/cmCMakePolicyCommand.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/Source/cmCMakePolicyCommand.h b/Source/cmCMakePolicyCommand.h
index fcc207e..61f9dd4 100644
--- a/Source/cmCMakePolicyCommand.h
+++ b/Source/cmCMakePolicyCommand.h
@@ -76,7 +76,11 @@ public:
"to WARN, which is like OLD but also produces a warning. "
"This effectively requests behavior preferred as of a given CMake "
"version and tells newer CMake versions to warn about their new "
- "policies."
+ "policies. "
+ "The policy version specified must be at least 2.4 or the command "
+ "will report an error. "
+ "In order to get compatibility features supporting versions earlier "
+ "than 2.4 see documentation of policy CMP_0001."
"\n"
" cmake_policy(SET <CMP_NNNN> NEW)\n"
" cmake_policy(SET <CMP_NNNN> OLD)\n"