vcxproj generator: Support the /DEBUG:FASTLINK option of VS 2015

Make qmake understand the /DEBUG:FASTLINK option in QMAKE_LFLAGS, and
write the corresponding value correctly to VS 2015 project files.

Task-number: QTBUG-55591
Change-Id: I670375ed1523a5ab96bb3cce28635785564edba8
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

1 files changed, 5 insertions, 0 deletions

diff --git a/qmake/generators/win32/msvc_objectmodel.h b/qmake/generators/win32/msvc_objectmodel.h
index 7092da3e59..96923ba23d 100644
--- a/qmake/generators/win32/msvc_objectmodel.h
+++ b/qmake/generators/win32/msvc_objectmodel.h
@@ -282,6 +282,10 @@ enum inlineExpansionOption {
     expandAnySuitable,
     expandDefault // Not useful number, but stops the output
 };
+enum linkerDebugOption {
+    linkerDebugOptionNone,
+    linkerDebugOptionFastLink
+};
 enum linkIncrementalType {
     linkIncrementalDefault,
     linkIncrementalNo,
@@ -595,6 +599,7 @@ public:
     QStringList             ForceSymbolReferences;
     QString                 FunctionOrder;
     triState                GenerateDebugInformation;
+    linkerDebugOption       DebugInfoOption;
     triState                GenerateMapFile;
     qlonglong               HeapCommitSize;
     qlonglong               HeapReserveSize;