Mesa (master): nv50/ra: `isinf()` is in namespace `std` since C++11.

[Jose Fonseca]

Module: Mesa
Branch: master
Commit: f525db6358fbaa7b4296d2e6484e0b1ae703ac78
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f525db6358fbaa7b4296d2e6484e0b1ae703ac78

Author: Pierre Moreau <pierre.morrow at free.fr>
Date:   Fri Mar 18 01:17:31 2016 +0100

nv50/ra: `isinf()` is in namespace `std` since C++11.

This fixes a compile error while building Nouveau with C++11 enabled (and
glibc >= 2.23). This happens if SWR is enabled, as it forces C++11.

Signed-off-by: Pierre Moreau <pierre.morrow at free.fr>
Signed-off-by: Jose Fonseca <jfonseca at vmware.com>

https://bugs.freedesktop.org/show_bug.cgi?id=94907

---

 src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
index 500ab89..1b595ae 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
@@ -1327,7 +1327,11 @@ GCRA::simplify()
                bestScore = score;
             }
          }
+#if __cplusplus >= 201103L
+         if (std::isinf(bestScore)) {
+#else
          if (isinf(bestScore)) {
+#endif
             ERROR("no viable spill candidates left\n");
             break;
          }