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-rw-r--r--editor/pnmgamma.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/editor/pnmgamma.c b/editor/pnmgamma.c
index d3e0d18c..507afae9 100644
--- a/editor/pnmgamma.c
+++ b/editor/pnmgamma.c
@@ -13,6 +13,7 @@
 #include <math.h>
 #include <ctype.h>
 
+#include "pm_c_util.h"
 #include "mallocvar.h"
 #include "shhopt.h"
 #include "pnm.h"