diff options
Diffstat (limited to 'Modules')
| -rw-r--r-- | Modules/UseSWIG.cmake | 41 |
1 files changed, 26 insertions, 15 deletions
diff --git a/Modules/UseSWIG.cmake b/Modules/UseSWIG.cmake index 7460932885..e7aaf32eef 100644 --- a/Modules/UseSWIG.cmake +++ b/Modules/UseSWIG.cmake @@ -30,9 +30,10 @@ Defines the following command for use with ``SWIG``: .. note:: - The variable ``SWIG_MODULE_<name>_REAL_NAME`` will be set to the name - of the swig module target library. This variable is useless if variable - ``UseSWIG_TARGET_NAME_PREFERENCE`` is set to ``STANDARD``. + This command creates a target with the specified ``<name>`` when + policy :policy:`CMP0078` is set to ``NEW``. Otherwise, the legacy + behavior will choose a different target name and store it in the + ``SWIG_MODULE_<name>_REAL_NAME`` variable. .. note:: @@ -197,13 +198,6 @@ information about support files generated by ``SWIG`` interface compilation. Some variables can be set to customize the behavior of ``swig_add_library`` as well as ``SWIG``: -``UseSWIG_TARGET_NAME_PREFERENCE`` - Specify target name strategy. - - * Set to ``LEGACY`` or undefined: legacy strategy is applied. Variable - ``SWIG_MODULE_<name>_REAL_NAME`` must be used to get real target name. - * Set to ``STANDARD``: target name matches specified name. - ``UseSWIG_MODULE_VERSION`` Specify different behaviors for ``UseSWIG`` module. @@ -225,8 +219,13 @@ as well as ``SWIG``: Specify extra dependencies for the generated module for ``<name>``. #]=======================================================================] - +cmake_policy(GET CMP0078 target_name_policy) cmake_policy (VERSION 3.12) +if (target_name_policy) + # respect user choice regarding CMP0078 policy + cmake_policy(SET CMP0078 ${target_name_policy}) +endif() +unset(target_name_policy) set(SWIG_CXX_EXTENSION "cxx") set(SWIG_EXTRA_LIBRARIES "") @@ -545,10 +544,22 @@ function(SWIG_ADD_LIBRARY name) unset(_SAM_TYPE) endif() - if (NOT DEFINED UseSWIG_TARGET_NAME_PREFERENCE) - set (UseSWIG_TARGET_NAME_PREFERENCE LEGACY) - elseif (NOT UseSWIG_TARGET_NAME_PREFERENCE MATCHES "^(LEGACY|STANDARD)$") - message (FATAL_ERROR "UseSWIG_TARGET_NAME_PREFERENCE: ${UseSWIG_TARGET_NAME_PREFERENCE}: invalid value. 'LEGACY' or 'STANDARD' is expected.") + cmake_policy(GET CMP0078 target_name_policy) + if (target_name_policy STREQUAL "NEW") + set (UseSWIG_TARGET_NAME_PREFERENCE STANDARD) + else() + if (NOT target_name_policy) + message(AUTHOR_WARNING + "Policy CMP0078 is not set. " + "Run \"cmake --help-policy CMP0078\" for policy details. " + "Use the cmake_policy command to set the policy and suppress this warning." + ) + endif() + if (NOT DEFINED UseSWIG_TARGET_NAME_PREFERENCE) + set (UseSWIG_TARGET_NAME_PREFERENCE LEGACY) + elseif (NOT UseSWIG_TARGET_NAME_PREFERENCE MATCHES "^(LEGACY|STANDARD)$") + message (FATAL_ERROR "UseSWIG_TARGET_NAME_PREFERENCE: ${UseSWIG_TARGET_NAME_PREFERENCE}: invalid value. 'LEGACY' or 'STANDARD' is expected.") + endif() endif() if (NOT DEFINED UseSWIG_MODULE_VERSION) |