--- a/src/Makefile.in	2025-03-11 13:27:10.299747040 -0400
+++ b/src/Makefile.in	2025-03-11 13:34:22.746707500 -0400
@@ -319,7 +319,9 @@ AM_LDFLAGS = -lpthread -lm
 cupsfilterdir = $(CUPS_FILTER_DIR)
 ESCPR_LIB_DIR = ../escprlib
 epson_escpr_wrapper2_CFLAGS = \
-	-Wall\
+	-Wno-pointer-sign\
+	-Wno-unused-result\
+	-Wno-deprecated-declarations\
 	-DCUPS_FILTER_NAME=\"epson-escpr2\" \
 	-DCUPS_FILTER_PATH=\"$(CUPS_FILTER_DIR)\" \
 	-DGCOMSW_PRIVATE
@@ -332,7 +334,8 @@ epson_escpr_wrapper2_SOURCES = \
 epson_escpr2_CFLAGS = \
 	-I$(top_srcdir)/escprlib/include \
 	-DGCOMSW_PRIVATE \
-	-DEPS_FILTER
+	-DEPS_FILTER\
+	-Wno-unused-result
 
 epson_escpr2_SOURCES = \
 	filter.c \