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Author SHA1 Message Date
Stephen Kelly 61ce654742 Genex: Fix stack overflow in transitive property evaluation. 
Commit v2.8.11~156^2~2 (Expand includes and defines transitively
in 'external' genexes., 2013-02-13) introduced a recursive loop
and a stack overflow during evaluation of a link implementation
which depends on a transitive property, such as

 add_library(empty1 ...)
 add_library(empty2 ...)
 target_link_libraries(empty1
   PRIVATE
     $<$<STREQUAL:$<TARGET_PROPERTY:INCLUDE_DIRECTORIES>,/foo/bar>:empty2>
 )

There is no use-case for code like that currently, but it should not
cause a stack overflow.

Avoid the recursion by reporting an error early if a case like this
is found.
 2014-07-02 00:09:38 +02:00
Stephen Kelly 567c8d103e Revert "Don't allow utility or global targets in the LINKED expression." 
This reverts commit 9712362b45.
 2013-02-13 15:12:31 +01:00
Stephen Kelly 9712362b45 Don't allow utility or global targets in the LINKED expression. 
The LINKED expression is exclusively for handling INTERFACE content
and it does not make sense for utility targets to have INTERFACE
content.
 2013-02-08 21:44:11 +01:00