[Buildroot] [PATCH v1] package/mesa3d: fix nouveau std::isinf related compile failure

[Peter Seiderer]

Add missing cmath include to already existing patch
0005-src-gallium-drivers-nouveau-codegen-nv50_ir_ra.cpp-p.patch.

Fixes:
  http://autobuild.buildroot.net/results/cbefc5d4a4fefb674e596400fa1d2698cd89c5b3/
  http://autobuild.buildroot.net/results/dc974da012f53fa4ed3be616f937b0afae423d66/

  ../src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp: In member function 'bool nv50_ir::GCRA::simplify()':
  ../src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp:1348:19: error: expected unqualified-id before '(' token
            if (std::isinf(bestScore)) {
                     ^

Signed-off-by: Peter Seiderer <ps.report at gmx.net>
---
Notes:
 - There are already three mesa3d upstream commits which tried to
   fix the same problem [1], [2], [3].
   Maybe the check for glibc in [3] is the root cause for the
   buildroot failures both using uclibc.

[1] https://cgit.freedesktop.org/mesa/mesa/commit/?id=f525db6358fbaa7b4296d2e6484e0b1ae703ac78
[2] https://cgit.freedesktop.org/mesa/mesa/commit/?id=121a0cedc80c5541d51599383486ba9a7397c6ce
[3] https://cgit.freedesktop.org/mesa/mesa/commit/?id=649704f1f7c9e1d0990d34a76154b2eb656bee42
---
 ...ers-nouveau-codegen-nv50_ir_ra.cpp-p.patch | 23 ++++++++++++++-----
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/package/mesa3d/0005-src-gallium-drivers-nouveau-codegen-nv50_ir_ra.cpp-p.patch b/package/mesa3d/0005-src-gallium-drivers-nouveau-codegen-nv50_ir_ra.cpp-p.patch
index 73e75993de..dac1b79a8a 100644
--- a/package/mesa3d/0005-src-gallium-drivers-nouveau-codegen-nv50_ir_ra.cpp-p.patch
+++ b/package/mesa3d/0005-src-gallium-drivers-nouveau-codegen-nv50_ir_ra.cpp-p.patch
@@ -1,4 +1,4 @@
-From f2ce27b761eeca301a109856f20ed9a8eb06796d Mon Sep 17 00:00:00 2001
+From 07de6302aefbe340e54276b4a9a8edd9a3fba270 Mon Sep 17 00:00:00 2001
 From: Fabrice Fontaine <fontaine.fabrice at gmail.com>
 Date: Sat, 28 Dec 2019 21:49:43 +0100
 Subject: [PATCH] src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp: prefix
@@ -25,15 +25,26 @@ Fixes:
 Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
 [Upstream status:
 https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3227]
+
+[Added missing cmath include]
+Signed-off-by: Peter Seiderer <ps.report at gmx.net>
 ---
- src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
+ src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
 
 diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
-index 6df2664da22..e81fb117213 100644
+index 6df2664..5959210 100644
 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
 +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
-@@ -1345,7 +1345,7 @@ GCRA::simplify()
+@@ -24,6 +24,7 @@
+ #include "codegen/nv50_ir_target.h"
+ 
+ #include <algorithm>
++#include <cmath>
+ #include <stack>
+ #include <limits>
+ #if __cplusplus >= 201103L
+@@ -1345,7 +1346,7 @@ GCRA::simplify()
                 bestMaxReg = it->maxReg;
              }
           }
@@ -43,5 +54,5 @@ index 6df2664da22..e81fb117213 100644
              return false;
           }
 -- 
-2.24.0
+2.25.1
 
-- 
2.25.1