diff options
| -rw-r--r-- | Modules/CheckPIESupported.cmake | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/Modules/CheckPIESupported.cmake b/Modules/CheckPIESupported.cmake index 6424472..452348b 100644 --- a/Modules/CheckPIESupported.cmake +++ b/Modules/CheckPIESupported.cmake @@ -22,10 +22,13 @@ property for executables will be honored at link time. Options are: ``OUTPUT_VARIABLE <output>`` - Set ``<output>`` variable with details about any error. + Set ``<output>`` variable with details about any error. If the check is + bypassed because it uses cached results from a previous call, the output + will be empty even if errors were present in the previous call. ``LANGUAGES <lang>...`` Check the linkers used for each of the specified languages. + If this option is not provided, the command checks all enabled languages. ``C``, ``CXX``, ``Fortran`` are supported. @@ -43,9 +46,9 @@ Variables For each language checked, two boolean cache variables are defined. ``CMAKE_<lang>_LINK_PIE_SUPPORTED`` - Set to ``YES`` if ``PIE`` is supported by the linker and ``NO`` otherwise. + Set to true if ``PIE`` is supported by the linker and false otherwise. ``CMAKE_<lang>_LINK_NO_PIE_SUPPORTED`` - Set to ``YES`` if ``NO_PIE`` is supported by the linker and ``NO`` otherwise. + Set to true if ``NO_PIE`` is supported by the linker and false otherwise. Examples ^^^^^^^^ @@ -139,7 +142,7 @@ function (check_pie_supported) # no support at link time. Set cache variables to NO set(CMAKE_${lang}_LINK_PIE_SUPPORTED NO CACHE INTERNAL "PIE (${lang})") set(CMAKE_${lang}_LINK_NO_PIE_SUPPORTED NO CACHE INTERNAL "NO_PIE (${lang})") - string (APPEND outputs "PIE and NO_PIE are not supported by linker for ${lang}") + string (APPEND outputs "PIE and NO_PIE are not supported by linker for ${lang}\n") endif() endforeach() |