2006-11-25 13:07:29 -07:00
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# -*- Makefile -*-
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# Rules for generating files using the C pre-processor
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# (Replaces CppFileTarget from Imake)
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SED = sed
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SUFFIXES = .cpp
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WCHAR32_FLAGS = -DWCHAR32=@WCHAR32@
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# Translate XCOMM into pound sign with sed, rather than passing -DXCOMM=XCOMM
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# to cpp, because that trick does not work on all ANSI C preprocessors.
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# Delete line numbers from the cpp output (-P is not portable, I guess).
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# Allow XCOMM to be preceded by whitespace and provide a means of generating
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# output lines with trailing backslashes.
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# Allow XHASH to always be substituted, even in cases where XCOMM isn't.
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CPP_SED_MAGIC = $(SED) -e '/^\# *[0-9][0-9]* *.*$$/d' \
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-e '/^\#line *[0-9][0-9]* *.*$$/d' \
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-e '/^[ ]*XCOMM$$/s/XCOMM/\#/' \
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-e '/^[ ]*XCOMM[^a-zA-Z0-9_]/s/XCOMM/\#/' \
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-e '/^[ ]*XHASH/s/XHASH/\#/' \
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-e '/\@\@$$/s/\@\@$$/\\/'
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.cpp:
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2011-11-15 13:53:44 -07:00
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$(AM_V_GEN)$(RAWCPP) $(RAWCPPFLAGS) $(CPP_FILES_FLAGS) < $< | $(CPP_SED_MAGIC) > $@
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