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-rw-r--r--gnu/packages/graph.scm2
1 files changed, 2 insertions, 0 deletions
diff --git a/gnu/packages/graph.scm b/gnu/packages/graph.scm
index 436c18449d..a999b1cdfa 100644
--- a/gnu/packages/graph.scm
+++ b/gnu/packages/graph.scm
@@ -531,6 +531,8 @@ of graphs.")
         (base32
          "08yw3maxhn5fl1lff81gmcrpa4j9aas4mmby1g9w5qcr0np82d1w"))))
     (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
     (inputs
      `(("gd" ,gd)))
     (home-page "http://www.mcternan.me.uk/mscgen/")