1 files changed, 13 insertions, 0 deletions
diff --git a/config.mk b/config.mk
index 47b82f7..90c3672 100644
--- a/config.mk
+++ b/config.mk
@@ -5,4 +5,17 @@ CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_GNU_SOURCE
 CFLAGS   = -std=c99 -Wall -O2 $(CPPFLAGS)
 LDFLAGS  = -s -lcrypt
 
+
 # To use libpassphrase, add -DWITH_LIBPASSPHRASE to CPPFLAGS and -lpassphrase to LDFLAGS
+
+# To customise the sleep time between authentication attempts, add -DRETRY_SLEEP=###
+# to CPPFLAGS, where ### is the number of seconds (integers only) to sleep, the
+# default ### is 1 (= 1 second)
+
+# To customise the password prompt, add -DPROMPT=### to CPPFLAGS, where ### is the
+# format string and arguments for fprintf(3), do not forget quotes to escape spaces,
+# the default ### is (with the surrounding quotes)
+# '"%s (%s@%s) password: ", argv0, pwd->pw_name, hostname'
+# argv0 is the name of the process,
+# pwd->pw_name is the user name, and
+# hostname is the machine name