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-rw-r--r--gnu/packages/games.scm3
1 files changed, 2 insertions, 1 deletions
diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 43199d2850..224ab7fb2d 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -4525,7 +4525,8 @@ over 100 user-created campaigns.")
                      (string-append (assoc-ref inputs "sdl-union")
                                     "/include/SDL:"
                                     (assoc-ref inputs "python")
-                                    "/include/python2.7"))
+                                    "/include/python2.7:"
+                                    (or (getenv "CPLUS_INCLUDE_PATH") "")))
              (substitute* "src/main/main.cpp"
                (("#include <SDL.h>" line)
                 (string-append line "