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-rw-r--r--doc/gpg-agent.texi8
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/gpg-agent.texi b/doc/gpg-agent.texi
index ab28eeb7d..2b45a41c1 100644
--- a/doc/gpg-agent.texi
+++ b/doc/gpg-agent.texi
@@ -52,9 +52,17 @@ GPG_TTY=`tty`
export GPG_TTY
@end smallexample
+@noindent
It is important that this environment variable always reflects the
output of the @code{tty} command.
+Please make sure that a proper pinentry program has been installed
+under the default filename (which is system dependant) or use the
+option @code{pinentry-pgm} to specify the full name of that program.
+It is often useful to install a symbolic link from the actual used
+pinentry (e.g. @file{/usr/bin/pinentry-gtk}) to the expected
+one (e.g. @file{/usr/bin/pinentry}).
+
@c man end
@noindent