From https://salsa.debian.org/games-team/hedgewars/blob/master/debian/patches/link-libatomic.patch 0.9.25
authornemo
Tue, 01 Jan 2019 11:17:28 -0500
branch0.9.25
changeset 14529 666b31c58de8
parent 14444 a32b967f1341
child 14576 945bf1d4d1a4
From https://salsa.debian.org/games-team/hedgewars/blob/master/debian/patches/link-libatomic.patch
QTfrontend/CMakeLists.txt
--- a/QTfrontend/CMakeLists.txt	Thu Dec 13 12:12:13 2018 -0500
+++ b/QTfrontend/CMakeLists.txt	Tue Jan 01 11:17:28 2019 -0500
@@ -214,7 +214,7 @@
 endif()
 
 if(CMAKE_CXX_COMPILER MATCHES "clang*")
-    list(APPEND HW_LINK_LIBS stdc++ m)
+    list(APPEND HW_LINK_LIBS stdc++ m atomic)
 endif()
 
 if(WIN32 AND VCPKG_TOOLCHAIN)