guix-play/gnu/packages/patches/mumble-1.2.19-abs.patch

From ea861fe86743c8402bbad77d8d1dd9de8dce447e Mon Sep 17 00:00:00 2001
From: Mikkel Krautz <mikkel@krautz.dk>
Date: Fri, 29 Dec 2017 14:47:25 +0100
Subject: [PATCH] AudioOutput: do not use non-existant template version of
 std::abs.

This change fixes AudioOutput to use the float overload of std::abs:

    float std::abs(float);

instead of a non-existant template version (for newer Boost 1.66).

Fixes mumble-voip/mumble#3281

---
 src/mumble/AudioOutput.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mumble/AudioOutput.cpp b/src/mumble/AudioOutput.cpp
index cbe0c0e2b..7a0a5e2ab 100644
--- a/src/mumble/AudioOutput.cpp
+++ b/src/mumble/AudioOutput.cpp
@@ -437,7 +437,7 @@ bool AudioOutput::mix(void *outbuff, unsigned int nsamp) {
 					top[2] = 0.0f;
 				}
 
-				if (std::abs<float>(front[0] * top[0] + front[1] * top[1] + front[2] * top[2]) > 0.01f) {
+				if (std::abs(front[0] * top[0] + front[1] * top[1] + front[2] * top[2]) > 0.01f) {
 					// Not perpendicular. Assume Y up and rotate 90 degrees.
 
 					float azimuth = 0.0f;