exports: first try at error handling if a target is missing

Now, if an imported target depends on a library which must come
from some other export set, cmake generates a check which errors
out if that target does not exist. I guess instead of completely
erroring out it would be better to only make the find_package() fail.

Alex

1 files changed, 6 insertions, 2 deletions

diff --git a/Source/cmExportFileGenerator.h b/Source/cmExportFileGenerator.h
index c9feffd..5a99b54 100644
--- a/Source/cmExportFileGenerator.h
+++ b/Source/cmExportFileGenerator.h
@@ -60,17 +60,21 @@ protected:
                                       ImportPropertyMap const& properties,
                                const std::set<std::string>& importedLocations);
   void GenerateImportedFileCheckLoop(std::ostream& os);
+  void GenerateMissingTargetsCheckCode(std::ostream& os,
+                               const std::vector<std::string>& missingTargets);
 
 
   // Collect properties with detailed information about targets beyond
   // their location on disk.
   void SetImportDetailProperties(const char* config,
                                  std::string const& suffix, cmTarget* target,
-                                 ImportPropertyMap& properties);
+                                 ImportPropertyMap& properties,
+                                 std::vector<std::string>& missingTargets);
   void SetImportLinkProperty(std::string const& suffix,
                              cmTarget* target, const char* propName,
                              std::vector<std::string> const& libs,
-                             ImportPropertyMap& properties);
+                             ImportPropertyMap& properties,
+                             std::vector<std::string>& missingTargets);
 
   /** Each subclass knows how to generate its kind of export file.  */
   virtual bool GenerateMainFile(std::ostream& os) = 0;