blob: b8857bae8e0af76def0425df249129bd36da85f0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
# -*- Makefile -*-
# Rules for generating files using the C pre-processor
# (Replaces CppFileTarget from Imake)
SED = sed
SUFFIXES = .pre
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' \
-e '/^[ ]*XCOMM$$/s/XCOMM/\#/' \
-e '/^[ ]*XCOMM[^a-zA-Z0-9_]/s/XCOMM/\#/' \
-e '/^[ ]*XHASH/s/XHASH/\#/' \
-e '/\@\@$$/s/\@\@$$/\\/'
# Allow people to comment out lines by starting them with '##'
.pre:
$(SED) -e '/^\#\#/d' $< | $(RAWCPP) $(RAWCPPFLAGS) $(CPP_FILES_FLAGS) | $(CPP_SED_MAGIC) > $@
|
