cpprules.in 1.15 KB
Newer Older
1 2 3 4
#							-*- Makefile -*-
# Rules for generating files using the C pre-processor
# (Replaces CppFileTarget from Imake)

5
SED = LC_CTYPE=C sed
6

7
SUFFIXES += .pre
8 9 10 11 12 13 14 15 16 17 18 19 20 21

WCHAR32_FLAGS = -DWCHAR32=@WCHAR32@

CPP_FILES_FLAGS = $(WCHAR32_FLAGS)

# Translate XCOMM into pound sign with sed, rather than passing -DXCOMM=XCOMM
# to cpp, because that trick does not work on all ANSI C preprocessors.
# Delete line numbers from the cpp output (-P is not portable, I guess).
# Allow XCOMM to be preceded by whitespace and provide a means of generating
# output lines with trailing backslashes.
# Allow XHASH to always be substituted, even in cases where XCOMM isn't.

CPP_SED_MAGIC = $(SED) -e '/^\#  *[0-9][0-9]*  *.*$$/d' \
                       -e '/^\#line  *[0-9][0-9]*  *.*$$/d' \
22 23 24
                       -e '/^[	 ]*XCOMM$$/s/XCOMM/\#/' \
                       -e '/^[	 ]*XCOMM[^a-zA-Z0-9_]/s/XCOMM/\#/' \
                       -e '/^[	 ]*XHASH/s/XHASH/\#/' \
25
                       -e 's,X11_LOCALEDATADIR,$(X11_LOCALEDATADIR),g' \
26 27 28
                       -e '/\@\@$$/s/\@\@$$/\\/'

.pre:
29
	@$(MKDIR_P) $(@D)
30
	$(AM_V_GEN)$(RAWCPP) $(RAWCPPFLAGS) $(CPP_FILES_FLAGS) < $< | $(CPP_SED_MAGIC) > $@