-also disable _KDE4_TARGET_LINK_INTERFACE_LIBRARIES() and use the renamed LINK_INTERFACE_LIBRARIES target property

instead: 
set_target_properties(foo PROPERTIES 
                          ${KDE4_DISABLE_PROPERTY_}LINK_INTERFACE_LIBRARIES  "kdeui;kdecore" 
                     )

While this doesn't look very nice, it is completely forward and backward compatible (i.e. cmake 2.4 doesn't complain,
cmake 2.6 works, both versions work as soon as the reduced link interface is the default (soon), if somebody 
uses this with kdelibs which don't have that anymore he will get the reduced interface instead of errors, so all 
should be ok)

Alex

CCMAIL: mueller@kde.org




svn path=/trunk/KDE/kdelibs/; revision=836131

1 files changed, 16 insertions, 1 deletions

diff --git a/modules/FindKDE4Internal.cmake b/modules/FindKDE4Internal.cmake
index ee0100eb..abe6bea3 100644
--- a/modules/FindKDE4Internal.cmake
+++ b/modules/FindKDE4Internal.cmake
@@ -493,9 +493,24 @@ option(KDE4_ENABLE_FINAL "Enable final all-in-one compilation")
 option(KDE4_BUILD_TESTS  "Build the tests")
 option(KDE4_ENABLE_HTMLHANDBOOK  "Create targets htmlhandbook for creating the html versions of the docbook docs")
 
-# this one enables the smaller link interface for libs on UNIX (exceot OSX)
+# this one enables the smaller link interface for libs on UNIX
+set(KDE4_DISABLE_PROPERTY_ )
 if(UNIX )# AND NOT  APPLE)
    option(KDE4_ENABLE_EXPERIMENTAL_LIB_EXPORT "Enable the experimental reduced library exports" FALSE)
+   # The purpose of the KDE4_DISABLE_PROPERTY_ variable is to be used as a prefix for 
+   # the target property LINK_INTERFACE_LIBRARIES. If it is empty, the property will have its
+   # correct name, if it's not empty, it will be a different name, i.e. the actual property
+   # will not be set, i.e. disabled. See kdelibs/kdecore/CMakeLists.txt for an example.
+   # This will be removed again as soon as we require cmake >= 2.6.0.
+   # If enabled, make it empty, so the property will keep it's actual name.
+   if (KDE4_ENABLE_EXPERIMENTAL_LIB_EXPORT)
+      set(KDE4_DISABLE_PROPERTY_ )
+   else (KDE4_ENABLE_EXPERIMENTAL_LIB_EXPORT)
+      # If disabled, make it non-empty, so the property name will change from "LINK_INTERFACE_LIBRARIES"
+      # to "DISABLED_LINK_INTERFACE_LIBRARIES", which is a different (non-existing) target property, and so
+      # setting that property won't have an effect
+      set(KDE4_DISABLE_PROPERTY_ "DISABLED_")
+   endif (KDE4_ENABLE_EXPERIMENTAL_LIB_EXPORT)
 endif(UNIX)#  AND NOT  APPLE)