1 files changed, 15 insertions, 25 deletions
diff --git a/clang/lib/Driver/ToolChains/Gnu.cpp b/clang/lib/Driver/ToolChains/Gnu.cpp
index f203cae1d329..665cdc3132fb 100644
--- a/clang/lib/Driver/ToolChains/Gnu.cpp
+++ b/clang/lib/Driver/ToolChains/Gnu.cpp
@@ -2139,31 +2139,21 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
   // and gcc-toolsets.
   if (SysRoot.empty() && TargetTriple.getOS() == llvm::Triple::Linux &&
       D.getVFS().exists("/opt/rh")) {
-    // Find the directory in /opt/rh/ starting with gcc-toolset-* or
-    // devtoolset-* with the highest version number and add that
-    // one to our prefixes.
-    std::string ChosenToolsetDir;
-    unsigned ChosenToolsetVersion = 0;
-    std::error_code EC;
-    for (llvm::vfs::directory_iterator LI = D.getVFS().dir_begin("/opt/rh", EC),
-                                       LE;
-         !EC && LI != LE; LI = LI.increment(EC)) {
-      StringRef ToolsetDir = llvm::sys::path::filename(LI->path());
-      unsigned ToolsetVersion;
-      if ((!ToolsetDir.startswith("gcc-toolset-") &&
-           !ToolsetDir.startswith("devtoolset-")) ||
-          ToolsetDir.substr(ToolsetDir.rfind('-') + 1)
-              .getAsInteger(10, ToolsetVersion))
-        continue;
-
-      if (ToolsetVersion > ChosenToolsetVersion) {
-        ChosenToolsetVersion = ToolsetVersion;
-        ChosenToolsetDir = "/opt/rh/" + ToolsetDir.str();
-      }
-    }
-
-    if (ChosenToolsetVersion > 0)
-      Prefixes.push_back(ChosenToolsetDir + "/root/usr");
+    // TODO: We may want to remove this, since the functionality
+    //   can be achieved using config files.
+    Prefixes.push_back("/opt/rh/gcc-toolset-12/root/usr");
+    Prefixes.push_back("/opt/rh/gcc-toolset-11/root/usr");
+    Prefixes.push_back("/opt/rh/gcc-toolset-10/root/usr");
+    Prefixes.push_back("/opt/rh/devtoolset-12/root/usr");
+    Prefixes.push_back("/opt/rh/devtoolset-11/root/usr");
+    Prefixes.push_back("/opt/rh/devtoolset-10/root/usr");
+    Prefixes.push_back("/opt/rh/devtoolset-9/root/usr");
+    Prefixes.push_back("/opt/rh/devtoolset-8/root/usr");
+    Prefixes.push_back("/opt/rh/devtoolset-7/root/usr");
+    Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
+    Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
+    Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
+    Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
   }
 
   // Fall back to /usr which is used by most non-Solaris systems.