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EXPORT_PROPERTIES: Prevent null dereference for undefined property

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Fixes: #18260
This commit is contained in:
Craig Scott
2018-08-16 22:22:13 +10:00
parent b88bf6796e
commit dbd3e2c53d
1 changed files with 5 additions and 0 deletions
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5
Source/cmExportFileGenerator.cxx
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@@ -1143,6 +1143,11 @@ bool cmExportFileGenerator::PopulateExportProperties(
return false; return false;
} }
auto propertyValue = targetProperties.GetPropertyValue(prop); auto propertyValue = targetProperties.GetPropertyValue(prop);
if (propertyValue == nullptr) {
// Asked to export a property that isn't defined on the target. Do not
// consider this an error, there's just nothing to export.
continue;
}
std::string evaluatedValue = cmGeneratorExpression::Preprocess( std::string evaluatedValue = cmGeneratorExpression::Preprocess(
propertyValue, cmGeneratorExpression::StripAllGeneratorExpressions); propertyValue, cmGeneratorExpression::StripAllGeneratorExpressions);
if (evaluatedValue != propertyValue) { if (evaluatedValue != propertyValue) {