Web browsers that send print jobs to cups in PDF format fail with error:
Returning IPP client-error-document-format-not-supported for Print-Job
Solution: add pdftops to cups filter chain
Edit cups receipt.
DEPENDS and BUILD_DEPENDS => poppler-apps (owns pdftops)
compile_rules => --with-pdftops=pdftops \
cooking: http://www.mediafire.com/file/2yco7xu9ouao992/cups-1.4.6_cooking.tazpkg