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-rw-r--r--gnu/packages/mail.scm6
1 files changed, 5 insertions, 1 deletions
diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index b17ac5c813..3790b583ee 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -86,7 +86,11 @@
("guile" ,guile-2.0)
("gnutls" ,gnutls)
("ncurses" ,ncurses)
- ("readline" ,readline)
+
+ ;; With Readline 6.3, examples/pop3client.c fails to build because it
+ ;; uses the now undefined 'CPPFunction' type.
+ ("readline" ,readline-6.2)
+
("linux-pam" ,linux-pam)
("libtool" ,libtool)
("gdbm" ,gdbm)))