clang -DHAVE_CONFIG_H -I. -I..  -I../include  -I./raster  -I./memory  -I./pagemanager  -I./filteropt  -I/usr/local/include  -O2 -MT raster_to_epson.o -MD -MP -MF .deps/raster_to_epson.Tpo -c -o raster_to_epson.o raster_to_epson.c
raster_to_epson.c:83:44: warning: passing 'char *' to parameter of type 'unsigned char *' converts between pointers to integer types with
      different sign [-Wpointer-sign]
                readBytes = cupsRasterReadPixels(Raster, buf, bufSize);
                                                         ^~~
/usr/local/include/cups/raster.h:399:40: note: passing argument to parameter 'p' here
                                             unsigned char *p, unsigned len);
                                                            ^
raster_to_epson.c:267:15: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
                while (attr = get_ppd_attr ("epcgResourceData", isFirst)) {
                       ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
raster_to_epson.c:267:15: note: place parentheses around the assignment to silence this warning
                while (attr = get_ppd_attr ("epcgResourceData", isFirst)) {
                            ^
                       (                                                )
raster_to_epson.c:267:15: note: use '==' to turn this assignment into an equality comparison
                while (attr = get_ppd_attr ("epcgResourceData", isFirst)) {
                            ^
                            ==
raster_to_epson.c:384:43: warning: 'cupsRasterReadHeader' is deprecated: Use cupsRasterReadHeader2 instead. [-Wdeprecated-declarations]
        while (JobCanceled == 0 && error == 0 && cupsRasterReadHeader (Raster, &header)) {
                                                 ^
/usr/local/include/cups/raster.h:396:18: note: 'cupsRasterReadHeader' has been explicitly marked deprecated here
extern unsigned         cupsRasterReadHeader(cups_raster_t *r,
                        ^
3 warnings generated.
mv -f .deps/raster_to_epson.Tpo .deps/raster_to_epson.Po
/bin/sh ../libtool  --tag=CC    --mode=link clang  -O2   -L/usr/local/lib -o epson_inkjet_printer_filter main.o  raster_to_epson.o -lstdc++  -lcupsimage -lcups -ljpeg -lm  ./memory/libmemory.la  ./pagemanager/libpagemanager.la  ./filteropt/libfilteropt.la  ./raster/libraster.la
libtool: link: clang -O2 -o epson_inkjet_printer_filter main.o raster_to_epson.o  -L/usr/local/lib -lstdc++ -lcupsimage -lcups -ljpeg -lm ./memory/.libs/libmemory.a ./pagemanager/.libs/libpagemanager.a ./filteropt/.libs/libfilteropt.a ./raster/.libs/libraster.a