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-rw-r--r--strcase.scm2
1 files changed, 2 insertions, 0 deletions
diff --git a/strcase.scm b/strcase.scm
index 71daba4..d099bb6 100644
--- a/strcase.scm
+++ b/strcase.scm
@@ -7,6 +7,8 @@
; SYMBOL-APPEND and StudlyCapsExpand added by A. Jaffer 2001.
; Authors of the original version were Ken Dickey and Aubrey Jaffer.
+(require 'rev4-optional-procedures) ;string-copy
+
;string-upcase, string-downcase, string-capitalize
; are obvious string conversion procedures and are non destructive.
;string-upcase!, string-downcase!, string-capitalize!