Xcode: Add "outputPaths" to custom command script build phase

This is needed for Xcode 9's "New Build System", whose release notes
mention "that output must be declared as an explicit output by the
script which generates it" in reference to outputs of custom script
build phases.

1 files changed, 11 insertions, 0 deletions

diff --git a/Source/cmGlobalXCodeGenerator.cxx b/Source/cmGlobalXCodeGenerator.cxx
index 9037961..3cd14e1 100644
--- a/Source/cmGlobalXCodeGenerator.cxx
+++ b/Source/cmGlobalXCodeGenerator.cxx
@@ -1517,6 +1517,17 @@ void cmGlobalXCodeGenerator::AddCommandsToBuildPhase(
   makecmd += " all";
   buildphase->AddAttribute("shellScript", this->CreateString(makecmd));
   buildphase->AddAttribute("showEnvVarsInLog", this->CreateString("0"));
+
+  cmXCodeObject* outputFiles = this->CreateObject(cmXCodeObject::OBJECT_LIST);
+  for (std::vector<cmCustomCommand>::const_iterator i = commands.begin();
+       i != commands.end(); ++i) {
+    std::vector<std::string> const& outputs = i->GetOutputs();
+    for (std::vector<std::string>::const_iterator j = outputs.begin();
+         j != outputs.end(); ++j) {
+      outputFiles->AddObject(this->CreateString(*j));
+    }
+  }
+  buildphase->AddAttribute("outputPaths", outputFiles);
 }
 
 void cmGlobalXCodeGenerator::CreateCustomRulesMakefile(