Export: allow exporting of additional properties

This change introduces an additional property that may be set on a
target to allow additional properties to be exported. Normally only a
limited number of properties are exported.

Additional properties may be exported by simply setting the
`EXPORT_PROPERTIES` property on a target that is exported.

1 files changed, 9 insertions, 0 deletions

diff --git a/Source/cmExportBuildFileGenerator.cxx b/Source/cmExportBuildFileGenerator.cxx
index f0ae47bdc4..bbbc9987d8 100644
--- a/Source/cmExportBuildFileGenerator.cxx
+++ b/Source/cmExportBuildFileGenerator.cxx
@@ -97,6 +97,15 @@ bool cmExportBuildFileGenerator::GenerateMainFile(std::ostream& os)
                                     properties, missingTargets);
     this->PopulateInterfaceProperty("INTERFACE_POSITION_INDEPENDENT_CODE", gte,
                                     properties);
+
+    std::string errorMessage;
+    if (!this->PopulateExportProperties(gte, properties, errorMessage)) {
+      this->LG->GetGlobalGenerator()->GetCMakeInstance()->IssueMessage(
+        cmake::FATAL_ERROR, errorMessage,
+        this->LG->GetMakefile()->GetBacktrace());
+      return false;
+    }
+
     const bool newCMP0022Behavior =
       gte->GetPolicyStatusCMP0022() != cmPolicies::WARN &&
       gte->GetPolicyStatusCMP0022() != cmPolicies::OLD;