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ExternalProject: Allow ALWAYS step property to be switched (#15368) 

Within an existing build tree, if the stamp for a step already exists
when one activates the ALWAYS option, we still want it to always build.
Remove the step stamp file during CMake configuration to ensure it does
not exist when the ALWAYS option is enabled.
This commit is contained in:
Brad King 2015-01-23 13:28:49 -05:00
parent 154bf8da99
commit a4605973ff
1 changed files with 9 additions and 0 deletions
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9
Modules/ExternalProject.cmake
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@ -1456,6 +1456,15 @@ function(ExternalProject_Add_Step name step)
if(always)
set_property(SOURCE ${stamp_file} PROPERTY SYMBOLIC 1)
set(touch)
# Remove any existing stamp in case the option changed in an existing tree.
if(CMAKE_CONFIGURATION_TYPES)
foreach(cfg ${CMAKE_CONFIGURATION_TYPES})
string(REPLACE "/${CMAKE_CFG_INTDIR}" "/${cfg}" stamp_file_config "${stamp_file}")
file(REMOVE ${stamp_file_config})
endforeach()
else()
file(REMOVE ${stamp_file})
endif()
else()
set(touch ${CMAKE_COMMAND} -E touch ${stamp_file})
endif()