cmCustomCommand: Track main dependency explicitly

Store the main dependency as the first entry in the dependency list plus
a boolean member indicating its existence.  Note that this slightly
changes existing behavior: the main dependency was previously the last
entry of the dependency list.

1 files changed, 3 insertions, 4 deletions

diff --git a/Source/cmQTWrapUICommand.cxx b/Source/cmQTWrapUICommand.cxx
index 4d65f33..8b2a42c 100644
--- a/Source/cmQTWrapUICommand.cxx
+++ b/Source/cmQTWrapUICommand.cxx
@@ -88,19 +88,18 @@ bool cmQTWrapUICommand(std::vector<std::string> const& args,
 
       std::vector<std::string> depends;
       depends.push_back(uiName);
-      std::string no_main_dependency;
       auto cc = cm::make_unique<cmCustomCommand>();
       cc->SetOutputs(hName);
       cc->SetDepends(depends);
       cc->SetCommandLines(hCommandLines);
-      mf.AddCustomCommandToOutput(no_main_dependency, std::move(cc));
+      mf.AddCustomCommandToOutput(std::move(cc));
 
       depends.push_back(hName);
       cc = cm::make_unique<cmCustomCommand>();
       cc->SetOutputs(cxxName);
       cc->SetDepends(depends);
       cc->SetCommandLines(cxxCommandLines);
-      mf.AddCustomCommandToOutput(no_main_dependency, std::move(cc));
+      mf.AddCustomCommandToOutput(std::move(cc));
 
       depends.clear();
       depends.push_back(hName);
@@ -108,7 +107,7 @@ bool cmQTWrapUICommand(std::vector<std::string> const& args,
       cc->SetOutputs(mocName);
       cc->SetDepends(depends);
       cc->SetCommandLines(mocCommandLines);
-      mf.AddCustomCommandToOutput(no_main_dependency, std::move(cc));
+      mf.AddCustomCommandToOutput(std::move(cc));
     }
   }