[libxslt] Check if target exists when reading target properties

[Nick Wellnhofer <nwellnhof src gnome org>]

commit 3d72e6151ede71920808cbc0630e73020cd33efe
Author: Markus Rickert <rickert fortiss org>
Date:   Thu Dec 31 13:48:27 2020 +0100

    Check if target exists when reading target properties

 libxslt-config.cmake.cmake.in | 72 +++++++++++++++++++++++--------------------
 1 file changed, 38 insertions(+), 34 deletions(-)
---
diff --git a/libxslt-config.cmake.cmake.in b/libxslt-config.cmake.cmake.in
index b64473f9..31764602 100644
--- a/libxslt-config.cmake.cmake.in
+++ b/libxslt-config.cmake.cmake.in
@@ -19,45 +19,49 @@ set(LIBXSLT_EXSLT_INCLUDE_DIR "${PACKAGE_PREFIX_DIR}/@CMAKE_INSTALL_INCLUDEDIR@"
 set(LIBXSLT_EXSLT_LIBRARY_DIR "${PACKAGE_PREFIX_DIR}/@CMAKE_INSTALL_LIBDIR@")
 
 macro(select_library_location target basename)
-       foreach(property IN ITEMS IMPORTED_LOCATION IMPORTED_IMPLIB)
-               get_target_property(${basename}_${property}_DEBUG ${target} ${property}_DEBUG)
-               get_target_property(${basename}_${property}_MINSIZEREL ${target} ${property}_MINSIZEREL)
-               get_target_property(${basename}_${property}_RELEASE ${target} ${property}_RELEASE)
-               get_target_property(${basename}_${property}_RELWITHDEBINFO ${target} 
${property}_RELWITHDEBINFO)
+       if(TARGET ${target})
+               foreach(property IN ITEMS IMPORTED_LOCATION IMPORTED_IMPLIB)
+                       get_target_property(${basename}_${property}_DEBUG ${target} ${property}_DEBUG)
+                       get_target_property(${basename}_${property}_MINSIZEREL ${target} 
${property}_MINSIZEREL)
+                       get_target_property(${basename}_${property}_RELEASE ${target} ${property}_RELEASE)
+                       get_target_property(${basename}_${property}_RELWITHDEBINFO ${target} 
${property}_RELWITHDEBINFO)
 
-               if(${basename}_${property}_DEBUG AND ${basename}_${property}_RELEASE)
-                       set(${basename}_LIBRARY debug ${${basename}_${property}_DEBUG} optimized 
${${basename}_${property}_RELEASE})
-               elseif(${basename}_${property}_DEBUG AND ${basename}_${property}_RELWITHDEBINFO)
-                       set(${basename}_LIBRARY debug ${${basename}_${property}_DEBUG} optimized 
${${basename}_${property}_RELWITHDEBINFO})
-               elseif(${basename}_${property}_DEBUG AND ${basename}_${property}_MINSIZEREL)
-                       set(${basename}_LIBRARY debug ${${basename}_${property}_DEBUG} optimized 
${${basename}_${property}_MINSIZEREL})
-               elseif(${basename}_${property}_RELEASE)
-                       set(${basename}_LIBRARY ${${basename}_${property}_RELEASE})
-               elseif(${basename}_${property}_RELWITHDEBINFO)
-                       set(${basename}_LIBRARY ${${basename}_${property}_RELWITHDEBINFO})
-               elseif(${basename}_${property}_MINSIZEREL)
-                       set(${basename}_LIBRARY ${${basename}_${property}_MINSIZEREL})
-               elseif(${basename}_${property}_DEBUG)
-                       set(${basename}_LIBRARY ${${basename}_${property}_DEBUG})
-               endif()
-       endforeach()
+                       if(${basename}_${property}_DEBUG AND ${basename}_${property}_RELEASE)
+                               set(${basename}_LIBRARY debug ${${basename}_${property}_DEBUG} optimized 
${${basename}_${property}_RELEASE})
+                       elseif(${basename}_${property}_DEBUG AND ${basename}_${property}_RELWITHDEBINFO)
+                               set(${basename}_LIBRARY debug ${${basename}_${property}_DEBUG} optimized 
${${basename}_${property}_RELWITHDEBINFO})
+                       elseif(${basename}_${property}_DEBUG AND ${basename}_${property}_MINSIZEREL)
+                               set(${basename}_LIBRARY debug ${${basename}_${property}_DEBUG} optimized 
${${basename}_${property}_MINSIZEREL})
+                       elseif(${basename}_${property}_RELEASE)
+                               set(${basename}_LIBRARY ${${basename}_${property}_RELEASE})
+                       elseif(${basename}_${property}_RELWITHDEBINFO)
+                               set(${basename}_LIBRARY ${${basename}_${property}_RELWITHDEBINFO})
+                       elseif(${basename}_${property}_MINSIZEREL)
+                               set(${basename}_LIBRARY ${${basename}_${property}_MINSIZEREL})
+                       elseif(${basename}_${property}_DEBUG)
+                               set(${basename}_LIBRARY ${${basename}_${property}_DEBUG})
+                       endif()
+               endforeach()
+       endif()
 endmacro()
 
 macro(select_executable_location target basename)
-  get_target_property(${basename}_IMPORTED_LOCATION_DEBUG ${target} IMPORTED_LOCATION_DEBUG)
-  get_target_property(${basename}_IMPORTED_LOCATION_MINSIZEREL ${target} IMPORTED_LOCATION_MINSIZEREL)
-  get_target_property(${basename}_IMPORTED_LOCATION_RELEASE ${target} IMPORTED_LOCATION_RELEASE)
-  get_target_property(${basename}_IMPORTED_LOCATION_RELWITHDEBINFO ${target} 
IMPORTED_LOCATION_RELWITHDEBINFO)
+       if(TARGET ${target})
+               get_target_property(${basename}_IMPORTED_LOCATION_DEBUG ${target} IMPORTED_LOCATION_DEBUG)
+               get_target_property(${basename}_IMPORTED_LOCATION_MINSIZEREL ${target} 
IMPORTED_LOCATION_MINSIZEREL)
+               get_target_property(${basename}_IMPORTED_LOCATION_RELEASE ${target} IMPORTED_LOCATION_RELEASE)
+               get_target_property(${basename}_IMPORTED_LOCATION_RELWITHDEBINFO ${target} 
IMPORTED_LOCATION_RELWITHDEBINFO)
 
-  if(${basename}_IMPORTED_LOCATION_RELEASE)
-    set(${basename}_EXECUTABLE ${${basename}_IMPORTED_LOCATION_RELEASE})
-  elseif(${basename}_IMPORTED_LOCATION_RELWITHDEBINFO)
-    set(${basename}_EXECUTABLE ${${basename}_IMPORTED_LOCATION_RELWITHDEBINFO})
-  elseif(${basename}_IMPORTED_LOCATION_MINSIZEREL)
-    set(${basename}_EXECUTABLE ${${basename}_IMPORTED_LOCATION_MINSIZEREL})
-  elseif(${basename}_IMPORTED_LOCATION_DEBUG)
-    set(${basename}_EXECUTABLE ${${basename}_IMPORTED_LOCATION_DEBUG})
-  endif()
+               if(${basename}_IMPORTED_LOCATION_RELEASE)
+                       set(${basename}_EXECUTABLE ${${basename}_IMPORTED_LOCATION_RELEASE})
+               elseif(${basename}_IMPORTED_LOCATION_RELWITHDEBINFO)
+                       set(${basename}_EXECUTABLE ${${basename}_IMPORTED_LOCATION_RELWITHDEBINFO})
+               elseif(${basename}_IMPORTED_LOCATION_MINSIZEREL)
+                       set(${basename}_EXECUTABLE ${${basename}_IMPORTED_LOCATION_MINSIZEREL})
+               elseif(${basename}_IMPORTED_LOCATION_DEBUG)
+                       set(${basename}_EXECUTABLE ${${basename}_IMPORTED_LOCATION_DEBUG})
+               endif()
+       endif()
 endmacro()
 
 select_library_location(LibXslt::LibXslt LIBXSLT)