Make ncurses build with GCC 5.0 and up

Merge the end result of two upstream changes:

Original fix from 20141206:
  + modify MKlib_gen.sh to work around change in development version of
    gcc introduced here:
            https://gcc.gnu.org/ml/gcc-patches/2014-06/msg02185.html
            https://gcc.gnu.org/ml/gcc-patches/2014-07/msg00236.html
    (reports by Marcus Shawcroft, Maohui Lei).

Later fixed in different manner in 20150725:
  + use alternate workaround for gcc 5.x feature (adapted from patch by
    Mikhail Peselnik).
This commit is contained in:
Alexander Kabaev 2015-08-27 14:00:20 +00:00
parent 93f422607b
commit c247c492af

View File

@ -2,10 +2,10 @@
#
# MKlib_gen.sh -- generate sources from curses.h macro definitions
#
# ($Id: MKlib_gen.sh,v 1.46 2011/06/04 19:14:08 tom Exp $)
# ($Id: MKlib_gen.sh,v 1.50 2015/08/07 00:48:24 tom Exp $)
#
##############################################################################
# Copyright (c) 1998-2010,2011 Free Software Foundation, Inc. #
# Copyright (c) 1998-2014,2015 Free Software Foundation, Inc. #
# #
# Permission is hereby granted, free of charge, to any person obtaining a #
# copy of this software and associated documentation files (the "Software"), #
@ -66,6 +66,23 @@ preprocessor="$1 -DNCURSES_INTERNALS -I../include"
AWK="$2"
USE="$3"
# A patch discussed here:
# https://gcc.gnu.org/ml/gcc-patches/2014-06/msg02185.html
# introduces spurious #line markers into the preprocessor output. The result
# appears in gcc 5.0 and (with modification) in 5.1, making it necessary to
# determine if we are using gcc, and if so, what version because the proposed
# solution uses a nonstandard option.
PRG=`echo "$1" | $AWK '{ sub(/^[[:space:]]*/,""); sub(/[[:space:]].*$/, ""); print; }' || exit 0`
FSF=`"$PRG" --version 2>/dev/null || exit 0 | fgrep "Free Software Foundation" | head -n 1`
ALL=`"$PRG" -dumpversion 2>/dev/null || exit 0`
ONE=`echo "$ALL" | sed -e 's/\..*$//'`
if test -n "$FSF" && test -n "$ALL" && test -n "$ONE" ; then
if test $ONE -ge 5 ; then
echo ".. adding -P option to work around $PRG $ALL" >&2
preprocessor="$preprocessor -P"
fi
fi
PID=$$
ED1=sed1_${PID}.sed
ED2=sed2_${PID}.sed