11ab64890Smrg#							-*- Makefile -*-
21ab64890Smrg# Rules for generating files using the C pre-processor
31ab64890Smrg# (Replaces CppFileTarget from Imake)
41ab64890Smrg
5e9628295SmrgC_SED = LC_CTYPE=C $(SED)
61ab64890Smrg
7e9fcaa8aSmrgSUFFIXES += .pre
81ab64890Smrg
91ab64890SmrgWCHAR32_FLAGS = -DWCHAR32=@WCHAR32@
101ab64890Smrg
111ab64890SmrgCPP_FILES_FLAGS = $(WCHAR32_FLAGS)
121ab64890Smrg
131ab64890Smrg# Translate XCOMM into pound sign with sed, rather than passing -DXCOMM=XCOMM
141ab64890Smrg# to cpp, because that trick does not work on all ANSI C preprocessors.
151ab64890Smrg# Delete line numbers from the cpp output (-P is not portable, I guess).
161ab64890Smrg# Allow XCOMM to be preceded by whitespace and provide a means of generating
171ab64890Smrg# output lines with trailing backslashes.
181ab64890Smrg# Allow XHASH to always be substituted, even in cases where XCOMM isn't.
191ab64890Smrg
20e9628295SmrgCPP_SED_MAGIC = $(C_SED) -e '/^\#  *[0-9][0-9]*  *.*$$/d' \
21e9628295Smrg                         -e '/^\#line  *[0-9][0-9]*  *.*$$/d' \
22e9628295Smrg                         -e '/^[	 ]*XCOMM$$/s/XCOMM/\#/' \
23e9628295Smrg                         -e '/^[	 ]*XCOMM[^a-zA-Z0-9_]/s/XCOMM/\#/' \
24e9628295Smrg                         -e '/^[	 ]*XHASH/s/XHASH/\#/' \
25e9628295Smrg                         -e 's,X11_LOCALEDATADIR,$(X11_LOCALEDATADIR),g' \
26e9628295Smrg                         -e '/\@\@$$/s/\@\@$$/\\/' \
27e9628295Smrg                         -e '/^$$/d'
281ab64890Smrg
291ab64890Smrg.pre:
30e9fcaa8aSmrg	@$(MKDIR_P) $(@D)
31b4ee4795Smrg	$(AM_V_GEN)$(RAWCPP) $(RAWCPPFLAGS) $(CPP_FILES_FLAGS) < $< | $(CPP_SED_MAGIC) > $@
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