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