1 files changed, 2 insertions, 0 deletions
diff --git a/src/projects.h b/src/projects.h
index 1c99506f..a2dc10b9 100644
--- a/src/projects.h
+++ b/src/projects.h
@@ -523,6 +523,7 @@ struct FACTORS {
 #define PJD_WGS84     4   /* WGS84 (or anything considered equivalent) */
 
 /* library errors */
+#define PJD_ERR_NO_ARGS              -1
 #define PJD_ERR_INVALID_M_OR_N      -39
 #define PJD_ERR_GEOCENTRIC          -45
 #define PJD_ERR_AXIS                -47
@@ -530,6 +531,7 @@ struct FACTORS {
 #define PJD_ERR_CATALOG             -49
 #define PJD_ERR_INVALID_SCALE       -52
 #define PJD_ERR_NON_CONVERGENT      -53
+#define PJD_ERR_MISSING_ARGS        -54
 
 struct projFileAPI_t;