Mesa (master): gallivm: Fix build for LLVM < 3.3

[Tom Stellard]

Module: Mesa
Branch: master
Commit: 730c90a70ec47ad6e514b84295f8047fb986130a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=730c90a70ec47ad6e514b84295f8047fb986130a

Author: Tom Stellard <thomas.stellard at amd.com>
Date:   Mon May  6 09:58:56 2013 -0700

gallivm: Fix build for LLVM < 3.3

The C API versions of the LLVM multithreaded functions were added in
LLVM 3.3.

---

 src/gallium/auxiliary/gallivm/lp_bld_misc.cpp |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
index 897f7ff..1e5adb7 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
+++ b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
@@ -85,9 +85,15 @@ class LLVMEnsureMultithreaded {
 public:
    LLVMEnsureMultithreaded()
    {
+#if HAVE_LLVM < 0x0303
+      if (!llvm::llvm_is_multithreaded()) {
+         llvm::llvm_start_multithreaded();
+      }
+#else
       if (!LLVMIsMultithreaded()) {
          LLVMStartMultithreaded();
       }
+#endif
    }
 };