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-rw-r--r--pkgs/applications/graphics/leocad/default.nix1
1 files changed, 1 insertions, 0 deletions
diff --git a/pkgs/applications/graphics/leocad/default.nix b/pkgs/applications/graphics/leocad/default.nix
index 884dc1158534..96384765bd03 100644
--- a/pkgs/applications/graphics/leocad/default.nix
+++ b/pkgs/applications/graphics/leocad/default.nix
@@ -17,6 +17,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ qt4 qmake4Hook zlib ];
 
   postPatch = ''
+    sed '1i#include <cmath>' -i common/camera.cpp
     substituteInPlace common/camera.cpp --replace "isnan(" "std::isnan("
     export qmakeFlags="$qmakeFlags INSTALL_PREFIX=$out"
   '';