Conditional compile MySQL and PostgreSQL support.

net/common/db-wrapper/Makefile.am

@@ -6,7 +6,19 @@ noinst_LTLIBRARIES = libdbwrapper.la
 
 noinst_HEADERS = db-wrapper.h mysql-db-ops.h sqlite-db-ops.h pgsql-db-ops.h
 
-libdbwrapper_la_SOURCES = db-wrapper.c mysql-db-ops.c sqlite-db-ops.c pgsql-db-ops.c
+if WITH_MYSQL
+  MYSQL_DB_SRC = mysql-db-ops.c
+else
+  MYSQL_DB_SRC =
+endif
+
+if WITH_POSTGRESQL
+  PGSQL_DB_SRC = pgsql-db-ops.c
+else
+  PGSQL_DB_SRC =
+endif
+
+libdbwrapper_la_SOURCES = db-wrapper.c sqlite-db-ops.c $(MYSQL_DB_SRC) $(PGSQL_DB_SRC)
 
 libdbwrapper_la_LDFLAGS = -Wl,-z -Wl,defs
 libdbwrapper_la_LIBADD = @SSL_LIBS@ @GLIB2_LIBS@ @MYSQL_LIBS@ -lsqlite3 @PGSQL_LIBS@

net/common/db-wrapper/db-wrapper.c

@@ -1,9 +1,15 @@
 #include "common.h"
 
 #include "db-wrapper.h"
-#include "mysql-db-ops.h"
 #include "sqlite-db-ops.h"
+
+#ifdef HAVE_MYSQL
+#include "mysql-db-ops.h"
+#endif
+
+#ifdef HAVE_POSTGRESQL
 #include "pgsql-db-ops.h"
+#endif
 
 typedef struct DBOperations {
     void (*db_conn_pool_free) (DBConnPool *);
@@ -40,6 +46,8 @@ init_conn_pool_common (DBConnPool *pool, int max_connections)
     pool->max_connections = max_connections;
 }
 
+#ifdef HAVE_MYSQL
+
 DBConnPool *
 db_conn_pool_new_mysql (const char *host,
                         const char *user,
@@ -81,6 +89,10 @@ db_conn_pool_new_mysql (const char *host,
     return pool;
 }
 
+#endif
+
+#ifdef HAVE_POSTGRESQL
+
 DBConnPool *
 db_conn_pool_new_pgsql (const char *host,
                         const char *user,
@@ -118,6 +130,8 @@ db_conn_pool_new_pgsql (const char *host,
     return pool;
 }
 
+#endif
+
 DBConnPool *
 db_conn_pool_new_sqlite (const char *db_path, int max_connections)
 {