fileapi: Fix codemodel target install destination for cross-dir rules

Since commit e89ad0f94e (install: Allow installing targets created in
another directory, 2018-06-18, v3.13.0-rc1~407^2) we support calling
`install(TARGETS)` for targets created in another directory.  However,
install generators are associated with the directory in which the call
to `install()` appears.  This may not be the same directory in which the
target is defined.  Record in each target the list of install generators
it has.

Fixes: #19546

1 files changed, 12 insertions, 0 deletions

diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index cd67586..a67122c 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -177,6 +177,7 @@ public:
   std::vector<cmCustomCommand> PreBuildCommands;
   std::vector<cmCustomCommand> PreLinkCommands;
   std::vector<cmCustomCommand> PostBuildCommands;
+  std::vector<cmInstallTargetGenerator*> InstallGenerators;
   std::set<std::string> SystemIncludeDirectories;
   cmTarget::LinkLibraryVectorType OriginalLinkLibraries;
   std::vector<std::string> IncludeDirectoriesEntries;
@@ -857,6 +858,17 @@ void cmTarget::SetHaveInstallRule(bool hir)
   impl->HaveInstallRule = hir;
 }
 
+void cmTarget::AddInstallGenerator(cmInstallTargetGenerator* g)
+{
+  impl->InstallGenerators.emplace_back(g);
+}
+
+std::vector<cmInstallTargetGenerator*> const& cmTarget::GetInstallGenerators()
+  const
+{
+  return impl->InstallGenerators;
+}
+
 bool cmTarget::GetIsGeneratorProvided() const
 {
   return impl->IsGeneratorProvided;