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#!/bin/sh
# @(#) cpp.sh 1.3 92/01/15 21:53:22
# Unprototypeing preprocessor for pre-ANSI C compilers. On some systems,
# this script can be as simple as:
#
# /lib/cpp "$@" | unproto
#
# However, some cc(1) drivers specify output file names on the
# preprocessor command line, so this shell script must be prepared to
# intercept them. Depending on the driver program, the cpp options may
# even go before or after the file name argument(s). The script below
# tries to tackle all these cases.
#
# You may want to add -Ipath_to_stdarg.h_file, -Dvoid=, -Dvolatile=,
# and even -D__STDC__.
## (This is what I used while testing with the SunOS C compiler.
## Also, I added "-Qpath ." to CFLAGS so that cpp would be
## run out of the current directory. --- Byron)
cpp_args="-I/u/byron/lib/sun4 -Dconst= -Dvolatile="
while :
do
case $1 in
"") break;;
-*) cpp_args="$cpp_args $1";;
*) cpp_args="$cpp_args $1"
case $2 in
""|-*) ;;
*) exec 1> $2 || exit 1; shift;;
esac;;
esac
shift
done
/lib/cpp $cpp_args | unproto
|
