Replace mkstemp by g_mkstemp because the former is unavailable on windows

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@15118 57a11ea4-9604-0410-9ed3-97b8803252fd

src/backend/file/test/test-xml-account.c

@@ -247,7 +247,7 @@ test_account(int i, Account *test_act)
         
     filename1 = g_strdup_printf("test_file_XXXXXX");
         
-    fd = mkstemp(filename1);
+    fd = g_mkstemp(filename1);
         
     write_dom_node_to_file(test_node, fd);
 

src/backend/file/test/test-xml-commodity.c

@@ -178,7 +178,7 @@ test_generation(void)
         
         filename1 = g_strdup_printf("test_file_XXXXXX");
         
-        fd = mkstemp(filename1);
+        fd = g_mkstemp(filename1);
         
         write_dom_node_to_file(test_node, fd);
 

src/backend/file/test/test-xml-pricedb.c

@@ -84,7 +84,7 @@ test_db (int i, GNCPriceDB *db)
 
   filename1 = g_strdup_printf ("test_file_XXXXXX");
         
-  fd = mkstemp (filename1);
+  fd = g_mkstemp (filename1);
         
   write_dom_node_to_file (test_node, fd);
 

src/backend/file/test/test-xml-transaction.c

@@ -429,7 +429,7 @@ test_transaction(void)
         
         filename1 = g_strdup_printf("test_file_XXXXXX");
         
-        fd = mkstemp(filename1);
+        fd = g_mkstemp(filename1);
         
         write_dom_node_to_file(test_node, fd);