Enhance the clang -v gcc debug printing to skip obviously bad and duplicate paths.
Otherwise it lists all files (e.g. shared libraries) that happen to be in the
same paths the GCC installations usually reside in.
On a x86_64 Debian 7 system with i386 multilibs.
before: clang -v 2>&1|wc -l
3059
after: clang -v 2>&1|wc -l
10
llvm-svn: 188400
diff --git a/clang/lib/Driver/ToolChains.h b/clang/lib/Driver/ToolChains.h
index 395826e..d5c57a9 100644
--- a/clang/lib/Driver/ToolChains.h
+++ b/clang/lib/Driver/ToolChains.h
@@ -16,8 +16,8 @@
#include "clang/Driver/ToolChain.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/Support/Compiler.h"
-
#include <vector>
+#include <set>
namespace clang {
namespace driver {
@@ -84,7 +84,7 @@
// We retain the list of install paths that were considered and rejected in
// order to print out detailed information in verbose mode.
- SmallVector<std::string, 4> CandidateGCCInstallPaths;
+ std::set<std::string> CandidateGCCInstallPaths;
public:
GCCInstallationDetector(const Driver &D, const llvm::Triple &TargetTriple,