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-rw-r--r--gnu/packages/education.scm3
1 files changed, 2 insertions, 1 deletions
diff --git a/gnu/packages/education.scm b/gnu/packages/education.scm
index b03b2cba2e..66e7e22f26 100644
--- a/gnu/packages/education.scm
+++ b/gnu/packages/education.scm
@@ -85,7 +85,8 @@
(lambda* (#:key inputs #:allow-other-keys)
(setenv "CPATH"
(string-append (assoc-ref inputs "sdl-mixer")
- "/include/SDL"))
+ "/include/SDL:"
+ (or (getenv "CPATH") "")))
#t)))))
(inputs
`(("gtk+" ,gtk+-2)