package/mariadb: patch mariadb_config to add sysroot path

This patch adds @CMAKE_SYSROOT@ to mariadb_config.c.in. Without it,
mariadb_config and mysql_config incorrectly returns host paths for
include paths and library paths.

The patch has been accepted upstream at
https://github.com/mariadb-corporation/mariadb-connector-c/commit/b787c0d69cc00af98cd4ee5bc205e1c7ddaf427a

Reported-by: Alexey Lukyanchuk <skif@skif-web.ru>
Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/mariadb/0002-add-sysroot-path-to-mariadb_config.patch

@@ -0,0 +1,29 @@
+From 7e1b6aafeb9fe6558da7506b304c0efb5ea82281 Mon Sep 17 00:00:00 2001
+From: Ryan Coe <bluemrp9@gmail.com>
+Date: Fri, 13 Dec 2019 17:13:26 -0800
+Subject: [PATCH] add sysroot path to mariadb_config
+
+Upstream: https://github.com/mariadb-corporation/mariadb-connector-c/commit/b787c0d69cc00af98cd4ee5bc205e1c7ddaf427a
+Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
+---
+ libmariadb/mariadb_config/mariadb_config.c.in | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/libmariadb/mariadb_config/mariadb_config.c.in b/libmariadb/mariadb_config/mariadb_config.c.in
+index 703c9466a1d9214a85f3638d2e3b4ecfef0c7bd6..f5513333e670373f060a3c2574d1d42facfd0337 100644
+--- a/libmariadb/mariadb_config/mariadb_config.c.in
++++ b/libmariadb/mariadb_config/mariadb_config.c.in
+@@ -5,8 +5,8 @@
+ 
+ static char *mariadb_progname;
+ 
+-#define INCLUDE "-I@CMAKE_INSTALL_PREFIX@/@INSTALL_INCLUDEDIR@ -I@CMAKE_INSTALL_PREFIX@/@INSTALL_INCLUDEDIR@/mysql"
+-#define LIBS    "-L@CMAKE_INSTALL_PREFIX@/@INSTALL_LIBDIR@/ -lmariadb"
++#define INCLUDE "-I@CMAKE_SYSROOT@@CMAKE_INSTALL_PREFIX@/@INSTALL_INCLUDEDIR@ -I@CMAKE_SYSROOT@@CMAKE_INSTALL_PREFIX@/@INSTALL_INCLUDEDIR@/mysql"
++#define LIBS    "-L@CMAKE_SYSROOT@@CMAKE_INSTALL_PREFIX@/@INSTALL_LIBDIR@/ -lmariadb"
+ #define LIBS_SYS "@extra_dynamic_LDFLAGS@"
+ #define CFLAGS  INCLUDE
+ #define VERSION "@MARIADB_CLIENT_VERSION@"
+-- 
+2.24.1
+