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Set CMake policy CMP0144 to new to use <PACKAGENAME>_ROOT env vars #630

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Merged
bartlettroscoe merged 1 commit into from
Mar 22, 2025
Merged

Set CMake policy CMP0144 to new to use <PACKAGENAME>_ROOT env vars #630

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9 changes: 9 additions & 0 deletions tribits/CHANGELOG.md
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ChangeLog for TriBITS
----------------------------------------

## 2025-03-22:

* **Changed:** Set CMake policy
[CMP0144](https://cmake.org/cmake/help/latest/policy/CMP0144.html) to `NEW`
(for versions of CMake 3.27+) so that `find_package(<PackageName> ...)` will
use upper case env var `<PACKAGENAME>_ROOT`. Now, systems that are setting
uppercase env var names for standard packages will get picked in CMake
configures.

## 2025-02-17:

* **Added:** Added support for header-only libraries with
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20 changes: 13 additions & 7 deletions tribits/core/common/TribitsCMakePolicies.cmake
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# *****************************************************************************
# @HEADER

macro(tribits_set_cmake_policy_if_exists policyName oldOrNew)
if (POLICY ${policyName})
cmake_policy(SET ${policyName} ${oldOrNew})
endif()
endmacro()

# Define policies for CMake
# It is assumed that the project has already called CMAKE_MINIMUM_REQUIRED.
cmake_policy(SET CMP0003 NEW) # Don't split up full lib paths to linker args
cmake_policy(SET CMP0007 NEW) # Don't ignore empty list items
cmake_policy(SET CMP0053 NEW) # Make var references much faster
cmake_policy(SET CMP0054 NEW) # Avoid quoted strings lookup variables
cmake_policy(SET CMP0057 NEW) # Support if ( ... IN_LIST ... )
cmake_policy(SET CMP0082 NEW) # Install rules follow order install() called in subdirs
tribits_set_cmake_policy_if_exists(CMP0003 NEW) # Don't split up full lib paths to linker args
tribits_set_cmake_policy_if_exists(CMP0007 NEW) # Don't ignore empty list items
tribits_set_cmake_policy_if_exists(CMP0053 NEW) # Make var references much faster
tribits_set_cmake_policy_if_exists(CMP0054 NEW) # Avoid quoted strings lookup variables
tribits_set_cmake_policy_if_exists(CMP0057 NEW) # Support if ( ... IN_LIST ... )
tribits_set_cmake_policy_if_exists(CMP0082 NEW) # Install rules follow order install() called in subdirs
tribits_set_cmake_policy_if_exists(CMP0144 NEW) # find_package() use <PACKAGENAME>_ROOT env var