Author: Jordi Mallach <jordi@debian.org>
Date:   Tue Feb 9 16:04:38 2021 +0100

    Fix postgresql include dir.

diff --git a/sql/postgres.c b/sql/postgres.c
index 1c6bed90b..b9a8cf89d 100644
--- a/sql/postgres.c
+++ b/sql/postgres.c
@@ -24,7 +24,7 @@
 #include <mailutils/sql.h>
 #include <mailutils/cctype.h>
 
-#include <libpq-fe.h>
+#include <postgresql/libpq-fe.h>
 
 static char *
 chop (char *str)