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# SPDX-License-Identifier: GPL-2.0-or-later
#
# Copyright (C) Akira Yokosawa, 2021
#
# Authors: Akira Yokosawa <akiyks@gmail.com>
EPSTOPDF := $(shell $(WHICH) epstopdf 2>/dev/null)
GS_953_OR_LATER := $(shell gs --version | grep -c -E "^(9\.5[3-9]|10\.[0-9]).?")
GS_OPT=--gsopt=-dPDFSETTINGS=/ebook
$(PDFTARGETS_OF_GNUPLOT_NEEDFIXFONTS): $(FIXFONTS)
$(PDFTARGETS_OF_GNUPLOT_NEEDFIXFONTS): %.pdf: %.eps
@echo "$< --> $(suffix $@)"
ifndef EPSTOPDF
$(error $< --> $@: epstopdf not found. Please install it)
endif
@sh $(FIXFONTS) < $< > $(basename $<)__.eps
@eps2eps $(basename $<)__.eps $(basename $<)___.eps
@epstopdf $(GS_OPT) $(basename $<)___.eps $@
@rm -f $(basename $<)__.eps $(basename $<)___.eps
$(PDFTARGETS_OF_TEX): %.pdf: %.eps
@echo "$< --> $(suffix $@)"
ifndef EPSTOPDF
$(error $< --> $@: epstopdf not found. Please install it)
endif
ifeq ($(GS_953_OR_LATER),1)
@eps2eps -dALLOWPSTRANSPARENCY $< $(basename $<)__.eps
@epstopdf --gsopt=-dALLOWPSTRANSPARENCY $(GS_OPT) $(basename $<)__.eps $@
else
@eps2eps -dNOSAFER $< $(basename $<)__.eps
@epstopdf --nosafer $(GS_OPT) $(basename $<)__.eps $@
endif
@rm -f $(basename $<)__.eps
$(PDFTARGETS_OF_EPSORIG_NOFIXFONTS) $(PDFTARGETS_OF_EPSOTHER): %.pdf: %.eps
@echo "$< --> $(suffix $@)"
ifndef EPSTOPDF
$(error $< --> $@: epstopdf not found. Please install it)
endif
@eps2eps $< $(basename $<)__.eps
@epstopdf $(GS_OPT) $(basename $<)__.eps $@
@rm -f $(basename $<)__.eps
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