TT#111150 Use libmariadb.pc instead of mariadb.pc

On Debian buster the latter contains transitive dependencies in Libs,
instead of in Libs.private, which leaks linking implementation details.

Change-Id: Ia131fe82444b8c2204976df75be047ab6d17c561

Makefile

@@ -9,9 +9,9 @@ CPPFLAGS += -DMEDIATOR_VERSION="\"$(VERSION)\""
 GLIB_CFLAGS := $(shell pkg-config glib-2.0 --cflags)
 
 # mariadb/mysql support
-ifeq ($(shell pkg-config --exists mariadb && echo yes),yes)
-MYSQL_CFLAGS := $(shell pkg-config --cflags mariadb)
-MYSQL_LDFLAGS := $(shell pkg-config --libs mariadb)
+ifeq ($(shell pkg-config --exists libmariadb && echo yes),yes)
+MYSQL_CFLAGS := $(shell pkg-config --cflags libmariadb)
+MYSQL_LDFLAGS := $(shell pkg-config --libs libmariadb)
 else ifneq ($(shell which mariadb_config),)
 MYSQL_CFLAGS := $(shell mariadb_config --cflags)
 MYSQL_LDFLAGS := $(shell mariadb_config --libs)