Add a warning when there are duplicate aliases in a resource file.

It can be confusing later on when the wrong resource is accessed, and
can easily be avoided by an early notice.

Task-number: QTBUG-7812
Reviewed-by: hjk

1 files changed, 2 insertions, 0 deletions

diff --git a/src/tools/rcc/rcc.cpp b/src/tools/rcc/rcc.cpp
index e41cd5582a..1f6e58f795 100644
--- a/src/tools/rcc/rcc.cpp
+++ b/src/tools/rcc/rcc.cpp
@@ -544,6 +544,8 @@ bool RCCResourceLibrary::addFile(const QString &alias, const RCCFileInfo &file)
     const QString filename = nodes.at(nodes.size()-1);
     RCCFileInfo *s = new RCCFileInfo(file);
     s->m_parent = parent;
+    if (parent->m_children.contains(filename))
+        qWarning("potential duplicate alias detected: '%s'", qPrintable(filename));
     parent->m_children.insertMulti(filename, s);
     return true;
 }