diff -Nru gnuais-0.3.3/debian/changelog gnuais-0.3.3/debian/changelog
--- gnuais-0.3.3/debian/changelog	2019-08-12 12:01:26.000000000 +0000
+++ gnuais-0.3.3/debian/changelog	2020-08-09 15:12:41.000000000 +0000
@@ -1,8 +1,9 @@
-gnuais (0.3.3-8build2) eoan; urgency=medium
+gnuais (0.3.3-9) unstable; urgency=medium
 
-  * No change rebuild for libmysqlclient21.
+  * Fix build for GCC 10 (Closes: #957290)
+    - debian/patches/0003-Fix-compile-error-for-GCC-10.patch
 
- -- Robie Basak <robie.basak@ubuntu.com>  Mon, 12 Aug 2019 12:01:26 +0000
+ -- Ruben Undheim <ruben.undheim@gmail.com>  Sun, 09 Aug 2020 17:12:41 +0200
 
 gnuais (0.3.3-8) unstable; urgency=medium
 
diff -Nru gnuais-0.3.3/debian/patches/0003-Fix-compile-error-for-GCC-10.patch gnuais-0.3.3/debian/patches/0003-Fix-compile-error-for-GCC-10.patch
--- gnuais-0.3.3/debian/patches/0003-Fix-compile-error-for-GCC-10.patch	1970-01-01 00:00:00.000000000 +0000
+++ gnuais-0.3.3/debian/patches/0003-Fix-compile-error-for-GCC-10.patch	2020-08-09 13:06:35.000000000 +0000
@@ -0,0 +1,42 @@
+From: Ruben Undheim <ruben.undheim@gmail.com>
+Date: Sun, 26 Jul 2020 20:38:37 +0200
+Subject: Fix compile error for GCC 10
+
+---
+ src/out_mysql.h | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/src/out_mysql.h b/src/out_mysql.h
+index 967fa1d..48f925e 100644
+--- a/src/out_mysql.h
++++ b/src/out_mysql.h
+@@ -1,4 +1,3 @@
+-
+ /*
+  *	out_mysql.h
+  *
+@@ -20,6 +19,8 @@
+  *    along with this program; if not, write to the Free Software
+  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+  */
++#ifndef OUT_MYSQL_H
++#define OUT_MYSQL_H
+ 
+ #include <time.h>
+ #ifdef HAVE_MYSQL
+@@ -32,7 +33,9 @@ struct mysql_state_t {
+ 	int connected;
+ 	int inserts;
+ #endif
+-} *my;
++};
++
++extern struct mysql_state_t *my;
+ 
+ extern struct mysql_state_t *myout_init();
+ 
+@@ -55,3 +58,4 @@ extern int myout_ais_vesseldatab(struct mysql_state_t *my,
+ 
+ extern int myout_nmea(struct mysql_state_t *my, time_t tid, char *nmea);
+ 
++#endif /* OUT_MYSQL_H */
diff -Nru gnuais-0.3.3/debian/patches/series gnuais-0.3.3/debian/patches/series
--- gnuais-0.3.3/debian/patches/series	2018-09-22 12:57:19.000000000 +0000
+++ gnuais-0.3.3/debian/patches/series	2020-08-09 13:06:35.000000000 +0000
@@ -1,2 +1,3 @@
 01_conf_location.patch
 02_fix_inline_functions.patch
+0003-Fix-compile-error-for-GCC-10.patch