[clang] [flang] [clang][driver] Special care for -l flags in config files (PR #117573)

[Fangrui Song via cfe-commits]

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@@ -1250,6 +1273,7 @@ Compilation *Driver::BuildCompilation(ArrayRef<const char *> ArgList) {
   if (!ContainsError)
     ContainsError = loadConfigFiles();
   bool HasConfigFile = !ContainsError && (CfgOptions.get() != nullptr);
+  bool HasConfigLinkerIn = !ContainsError && (CfgLinkerInputs.get() != nullptr);
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MaskRay wrote:

`&& CfgLinkerInputs`

https://github.com/llvm/llvm-project/pull/117573