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authorDennis Klein <d.klein@gsi.de>2019-05-27 20:00:43 (GMT)
committerDennis Klein <d.klein@gsi.de>2019-06-13 14:41:04 (GMT)
commit9e84c7c5e8e243624858692bddb6f13485f46774 (patch)
tree230eab866ac2582c04bcf6f9e5bacd9aaf8ba507 /Help
parentb7d72db89de6a9ddc8c8740a6e8b8980d108b900 (diff)
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cmInstallTargetGenerator: Introduce CMP0095
Escape coincidental CMake syntax in RPATH entries when generating the intermediary cmake_install.cmake script. Fixes #19225
Diffstat (limited to 'Help')
-rw-r--r--Help/manual/cmake-policies.7.rst1
-rw-r--r--Help/policy/CMP0095.rst30
-rw-r--r--Help/release/dev/CMP0095.rst5
3 files changed, 36 insertions, 0 deletions
diff --git a/Help/manual/cmake-policies.7.rst b/Help/manual/cmake-policies.7.rst
index 1d023cb..bac1c6c 100644
--- a/Help/manual/cmake-policies.7.rst
+++ b/Help/manual/cmake-policies.7.rst
@@ -57,6 +57,7 @@ Policies Introduced by CMake 3.15
.. toctree::
:maxdepth: 1
+ CMP0095: RPATH entries are properly escaped in the intermediary CMake install script. </policy/CMP0095>
CMP0094: FindPython3, FindPython2 and FindPython use LOCATION for lookup strategy. </policy/CMP0094>
CMP0093: FindBoost reports Boost_VERSION in x.y.z format. </policy/CMP0093>
CMP0092: MSVC warning flags are not in CMAKE_{C,CXX}_FLAGS by default. </policy/CMP0092>
diff --git a/Help/policy/CMP0095.rst b/Help/policy/CMP0095.rst
new file mode 100644
index 0000000..4c56a05
--- /dev/null
+++ b/Help/policy/CMP0095.rst
@@ -0,0 +1,30 @@
+CMP0095
+-------
+
+``RPATH`` entries are properly escaped in the intermediary CMake install script.
+
+In CMake 3.15 and earlier, ``RPATH`` entries set via
+:variable:`CMAKE_INSTALL_RPATH` or via :prop_tgt:`INSTALL_RPATH` have not been
+escaped before being inserted into the ``cmake_install.cmake`` script. Dynamic
+linkers on ELF-based systems (e.g. Linux and FreeBSD) allow certain keywords in
+``RPATH`` entries, such as ``${ORIGIN}`` (More details are available in the
+``ld.so`` man pages on those systems). The syntax of these keywords can match
+CMake's variable syntax. In order to not be substituted (usually to an empty
+string) already by the intermediary ``cmake_install.cmake`` script, the user had
+to double-escape such ``RPATH`` keywords, e.g.
+``set(CMAKE_INSTALL_RPATH "\\\${ORIGIN}/../lib")``. Since the intermediary
+``cmake_install.cmake`` script is an implementation detail of CMake, CMake 3.16
+and later will make sure ``RPATH`` entries are inserted literally by escaping
+any coincidental CMake syntax.
+
+The ``OLD`` behavior of this policy is to not escape ``RPATH`` entries in the
+intermediary ``cmake_install.cmake`` script. The ``NEW`` behavior is to properly
+escape coincidental CMake syntax in ``RPATH`` entries when generating the
+intermediary ``cmake_install.cmake`` script.
+
+This policy was introduced in CMake version 3.16. CMake version |release| warns
+when the policy is not set and detected usage of CMake-like syntax and uses
+``OLD`` behavior. Use the :command:`cmake_policy` command to set it to ``OLD``
+or ``NEW`` explicitly.
+
+.. include:: DEPRECATED.txt
diff --git a/Help/release/dev/CMP0095.rst b/Help/release/dev/CMP0095.rst
new file mode 100644
index 0000000..21d0550
--- /dev/null
+++ b/Help/release/dev/CMP0095.rst
@@ -0,0 +1,5 @@
+CMP0095
+-------
+
+* ``RPATH`` entries are properly escaped in the intermediary CMake install script.
+ See policy :policy:`CMP0095`.