diff --git a/channels/client/addin.c b/channels/client/addin.c
index 958ef82e2..bdd9400b5 100644
--- a/channels/client/addin.c
+++ b/channels/client/addin.c
@@ -494,15 +494,20 @@ PVIRTUALCHANNELENTRY freerdp_channels_load_static_addin_entry(LPCSTR pszName, LP
 					     0) || /* we only want to know if strnlen is > 0 */
 					    (strncmp(subsystems->name, pszSubsystem, MAX_PATH) == 0))
 					{
+						/* cast with union trick to avoid -Wcast-function-type-strict */
+						union
+						{
+							PVIRTUALCHANNELENTRY pvce;
+							static_subsystem_entry_fn_t entry;
+						} cnv;
+						cnv.entry = subsystems->entry;
 						if (pszType)
 						{
 							if (strncmp(subsystems->type, pszType, MAX_PATH) == 0)
-								return (PVIRTUALCHANNELENTRY)subsystems->entry;
+								return cnv.pvce;
 						}
 						else
-						{
-							return (PVIRTUALCHANNELENTRY)subsystems->entry;
-						}
+							return cnv.pvce;
 					}
 				}
 			}
diff --git a/libfreerdp/primitives/prim_copy.c b/libfreerdp/primitives/prim_copy.c
index 4b9a2a265..895dc2eae 100644
--- a/libfreerdp/primitives/prim_copy.c
+++ b/libfreerdp/primitives/prim_copy.c
@@ -377,8 +377,16 @@ void primitives_init_copy(primitives_t* prims)
 	/* Start with the default. */
 	prims->copy_8u = general_copy_8u;
 	prims->copy_8u_AC4r = general_copy_8u_AC4r;
-	/* This is just an alias with void* parameters */
-	prims->copy = (__copy_t)(prims->copy_8u);
+	/* This is just an alias with void* parameters
+	 * cast with union trick to avoid -Wcast-function-type-strict
+	 */
+	union
+	{
+		__copy_8u_t ufkt;
+		__copy_t fkt;
+	} cnv;
+	cnv.ufkt = prims->copy_8u;
+	prims->copy = cnv.fkt;
 	prims->copy_no_overlap = generic_image_copy_no_overlap;
 }
 
diff --git a/winpr/tools/makecert/makecert.c b/winpr/tools/makecert/makecert.c
index a94e98697..9bcf7763c 100644
--- a/winpr/tools/makecert/makecert.c
+++ b/winpr/tools/makecert/makecert.c
@@ -261,8 +261,9 @@ fallback:
 	return computerName;
 }
 
-static int command_line_pre_filter(MAKECERT_CONTEXT* context, int index, int argc, LPCSTR* argv)
+static int command_line_pre_filter(void* pvctx, int index, int argc, LPSTR* argv)
 {
+	MAKECERT_CONTEXT* context = pvctx;
 	if (!context || !argv || (index < 0) || (argc < 0))
 		return -1;
 
@@ -299,8 +300,7 @@ static int makecert_context_parse_arguments(MAKECERT_CONTEXT* context,
 	CommandLineClearArgumentsA(args);
 	flags = COMMAND_LINE_SEPARATOR_SPACE | COMMAND_LINE_SIGIL_DASH;
 	status =
-	    CommandLineParseArgumentsA(argc, argv, args, flags, context,
-	                               (COMMAND_LINE_PRE_FILTER_FN_A)command_line_pre_filter, NULL);
+	    CommandLineParseArgumentsA(argc, argv, args, flags, context, command_line_pre_filter, NULL);
 
 	if (status & COMMAND_LINE_STATUS_PRINT_HELP)
 	{