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# Copyright 2021-2024, Alejandro Colomar <alx@kernel.org>
# SPDX-License-Identifier: LGPL-3.0-only WITH LGPL-3.0-linking-exception
ifndef MAKEFILE_BUILD_PDF_EQN_INCLUDED
MAKEFILE_BUILD_PDF_EQN_INCLUDED := 1
include $(MAKEFILEDIR)/build/pre/tbl.mk
include $(MAKEFILEDIR)/configure/build-depends/grep.mk
include $(MAKEFILEDIR)/configure/build-depends/groff-base.mk
_PDFMAN_troff := $(patsubst %.eqn,%.pdf.troff,$(_MAN_eqn))
$(_PDFMAN_troff): %.pdf.troff: %.eqn $(MK) | $$(@D)/
$(info $(INFO_)EQN $@)
! ($(EQN) -Tpdf $(EQNFLAGS) <$< 2>&1 >$@) \
| $(GREP) ^ >&2
.PHONY: build-pdf-eqn
build-pdf-eqn: $(_PDFMAN_troff);
endif # include guard
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