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--- a/drawtune.c
+++ b/drawtune.c
@@ -75,7 +75,8 @@
 int rootstem;
 int fontsize, fontnum;
 int donemeter;
-int ingrace, inchord;
+extern int ingrace;
+int inchord;
 int chordcount;
 struct feature* chordhead;
 
--- a/toabc.c
+++ b/toabc.c
@@ -85,7 +85,7 @@
 int new_key_number;  /* used for gchord transposition */
 int oldtable[7], newtable[7]; /* for handling transposition */
 int inchord; /* are we in a chord [ ] ? */
-int ingrace; /* are we in a grace note set { } ? */
+extern int ingrace; /* are we in a grace note set { } ? */
 int chordcount; /* number of notes or rests in current chord */
 int inlinefield; /* boolean - are we in [<field>: ] ? */
 int cleanup; /* boolean to indicate -u option (update notation) */