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From 705490763fcc052defa2d49a5c5200775cd12c54 Mon Sep 17 00:00:00 2001
From: Peter Seiderer <ps.report@gmx.net>
Date: Wed, 4 Mar 2020 08:27:24 +0100
Subject: [PATCH] c99_math: import isinf for uclibc based toolchains

The same fix as for glibc >= 2.23 is needed for uclibc
based toolchains.

[Upstream suggested: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4042]
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
---
 include/c99_math.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/c99_math.h b/include/c99_math.h
index e906c26aa54..c8a73a2d2c7 100644
--- a/include/c99_math.h
+++ b/include/c99_math.h
@@ -190,7 +190,7 @@ fpclassify(double x)
  * undefines those functions, which in glibc 2.23, are defined as macros rather
  * than functions as in glibc 2.22.
  */
-#if __cplusplus >= 201103L && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 23))
+#if __cplusplus >= 201103L && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 23) || defined(__UCLIBC__))
 #include <cmath>
 
 using std::fpclassify;
-- 
2.25.1