diff options
| -rw-r--r-- | Modules/ExternalProject.cmake | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Modules/ExternalProject.cmake b/Modules/ExternalProject.cmake index bbeeeed..e3bdc6d 100644 --- a/Modules/ExternalProject.cmake +++ b/Modules/ExternalProject.cmake @@ -1184,10 +1184,11 @@ endfunction() function(ExternalProject_Get_Property name) foreach(var ${ARGN}) string(TOUPPER "${var}" VAR) - get_property(${var} TARGET ${name} PROPERTY _EP_${VAR}) - if(NOT ${var}) + get_property(is_set TARGET ${name} PROPERTY _EP_${VAR} SET) + if(NOT is_set) message(FATAL_ERROR "External project \"${name}\" has no ${var}") endif() + get_property(${var} TARGET ${name} PROPERTY _EP_${VAR}) set(${var} "${${var}}" PARENT_SCOPE) endforeach() endfunction() |