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-rw-r--r--pkgs/os-specific/linux/g15daemon/default.nix5
1 files changed, 5 insertions, 0 deletions
diff --git a/pkgs/os-specific/linux/g15daemon/default.nix b/pkgs/os-specific/linux/g15daemon/default.nix
index 118a17c4c8f..d20fb662ff5 100644
--- a/pkgs/os-specific/linux/g15daemon/default.nix
+++ b/pkgs/os-specific/linux/g15daemon/default.nix
@@ -79,6 +79,11 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ libg15 libg15render ];
 
+  # Workaround build failure on -fno-common toolchains like upstream gcc-10:
+  #  ld: g15_plugins.o:/build/g15daemon-1.9.5.3/g15daemon/./g15daemon.h:218:
+  #   multiple definition of `lcdlist_mutex'; utility_funcs.o:g15daemon.h:218: first defined here
+  NIX_CFLAGS_COMPILE = "-fcommon";
+
   enableParallelBuilding = true;
 
   meta = {