1 files changed, 43 insertions, 0 deletions
diff --git a/sys-devel/clang/files/clang-3.0-linux-runtime-gcc-detection.patch b/sys-devel/clang/files/clang-3.0-linux-runtime-gcc-detection.patch
new file mode 100644
index 000000000000..a1f7ce2a98fb
--- /dev/null
+++ b/sys-devel/clang/files/clang-3.0-linux-runtime-gcc-detection.patch
@@ -0,0 +1,43 @@
+diff -upNr a/llvm-3.0.src/tools/clang/lib/Driver/ToolChains.cpp b/llvm-3.0.src/tools/clang/lib/Driver/ToolChains.cpp
+--- a/llvm-3.0.src/tools/clang/lib/Driver/ToolChains.cpp	2012-05-23 15:39:01.070411000 -0400
++++ b/llvm-3.0.src/tools/clang/lib/Driver/ToolChains.cpp	2012-05-23 15:39:22.371785000 -0400
+@@ -1382,6 +1382,7 @@ enum LinuxDistro {
+   DebianSqueeze,
+   DebianWheezy,
+   Exherbo,
++  Gentoo,
+   RHEL4,
+   RHEL5,
+   RHEL6,
+@@ -1403,6 +1404,10 @@ enum LinuxDistro {
+   UnknownDistro
+ };
+ 
++static bool IsGentoo(enum LinuxDistro Distro) {
++  return Distro == Gentoo;
++}
++
+ static bool IsRedhat(enum LinuxDistro Distro) {
+   return Distro == Fedora13 || Distro == Fedora14 ||
+          Distro == Fedora15 || Distro == FedoraRawhide ||
+@@ -1433,7 +1438,9 @@ static LinuxDistro DetectLinuxDistro(llv
+     SmallVector<StringRef, 8> Lines;
+     Data.split(Lines, "\n");
+     for (unsigned int i = 0, s = Lines.size(); i < s; ++ i) {
+-      if (Lines[i] == "DISTRIB_CODENAME=hardy")
++      if (Lines[i] == "DISTRIB_ID=\"Gentoo\"")
++        return Gentoo;
++      else if (Lines[i] == "DISTRIB_CODENAME=hardy")
+         return UbuntuHardy;
+       else if (Lines[i] == "DISTRIB_CODENAME=intrepid")
+         return UbuntuIntrepid;
+@@ -1597,6 +1604,9 @@ Linux::GCCInstallationDetector::GCCInsta
+     GccInstallPath.append("/");
+     GccInstallPath.append(CXX_INCLUDE_ARCH);
+     GccInstallPath.append("/");
++    llvm::OwningPtr<llvm::MemoryBuffer> File;
++    if (!llvm::MemoryBuffer::getFile("/etc/env.d/gcc/config-" + D.DefaultHostTriple, File))
++      Version = File.get()->getBuffer().rsplit('-').second.substr(0,5);
+     GccInstallPath.append(Version);
+     GccParentLibPath = GccInstallPath + "/../../..";
+     IsValid = true;