29 lines
1.4 KiB
Diff
29 lines
1.4 KiB
Diff
diff -upNr a/llvm-3.1.src/tools/clang/lib/Driver/ToolChains.cpp b/llvm-3.1.src/tools/clang/lib/Driver/ToolChains.cpp
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--- a/llvm-3.1.src/tools/clang/lib/Driver/ToolChains.cpp 2012-05-24 03:32:31.593191000 -0400
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+++ b/llvm-3.1.src/tools/clang/lib/Driver/ToolChains.cpp 2012-05-24 03:38:31.733163513 -0400
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@@ -1145,6 +1145,25 @@ Generic_GCC::GCCInstallationDetector::GC
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Prefixes.push_back(D.InstalledDir + "/..");
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}
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+ llvm::OwningPtr<llvm::MemoryBuffer> File;
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+ for (unsigned k = 0, ke = CandidateTripleAliases.size(); k < ke; ++k) {
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+ if (!llvm::MemoryBuffer::getFile(D.SysRoot + "/etc/env.d/gcc/config-" + CandidateTripleAliases[k].str(), File))
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+ {
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+ bool Exists;
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+ const std::string VersionText = File.get()->getBuffer().rsplit('-').second.substr(0,5).str();
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+ const std::string GentooPath = D.SysRoot + "/usr/lib/gcc/" + CandidateTripleAliases[k].str() + "/" + VersionText;
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+ if (!llvm::sys::fs::exists(GentooPath + "/crtbegin.o", Exists) && Exists)
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+ {
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+ Version = GCCVersion::Parse(VersionText);
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+ GCCInstallPath = GentooPath;
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+ GCCParentLibPath = GCCInstallPath + "/../../..";
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+ GCCTriple.setTriple(CandidateTripleAliases[k]);
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+ IsValid = true;
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+ return;
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+ }
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+ }
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+ }
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+
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// Loop over the various components which exist and select the best GCC
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// installation available. GCC installs are ranked by version number.
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Version = GCCVersion::Parse("0.0.0");
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