#!/bin/sh
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.734 2019/03/01 16:18:13 tg Exp $'
#-
# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
# 2011, 2012, 2013, 2014, 2015, 2016, 2017
# mirabilos <m@mirbsd.org>
#
# Provided that these terms and disclaimer and all copyright notices
# are retained or reproduced in an accompanying document, permission
# is granted to deal in this work without restriction, including un-
# limited rights to use, publicly perform, distribute, sell, modify,
# merge, give away, or sublicence.
#
# This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
# the utmost extent permitted by applicable law, neither express nor
# implied; without malicious intent or gross negligence. In no event
# may a licensor, author or contributor be held liable for indirect,
# direct, other damage, loss, or other issues arising in any way out
# of dealing in the work, even if advised of the possibility of such
# damage or existence of a defect, except proven that it results out
# of said person's immediate fault when using the work as intended.
#-
# People analysing the output must whitelist conftest.c for any kind
# of compiler warning checks (mirtoconf is by design not quiet).
#
# Used environment documentation is at the end of this file.
LC_ALL=C
export LC_ALL
case $ZSH_VERSION:$VERSION in
:zsh*) ZSH_VERSION=2 ;;
esac
if test -n "${ZSH_VERSION+x}" && (emulate sh) >/dev/null 2>&1; then
emulate sh
NULLCMD=:
fi
if test -d /usr/xpg4/bin/. >/dev/null 2>&1; then
# Solaris: some of the tools have weird behaviour, use portable ones
PATH=/usr/xpg4/bin:$PATH
export PATH
fi
nl='
'
safeIFS=' '
safeIFS=" $safeIFS$nl"
IFS=$safeIFS
allu=QWERTYUIOPASDFGHJKLZXCVBNM
alll=qwertyuiopasdfghjklzxcvbnm
alln=0123456789
alls=______________________________________________________________
case `echo a | tr '\201' X` in
X)
# EBCDIC build system
lfcr='\n\r'
;;
*)
lfcr='\012\015'
;;
esac
genopt_die() {
if test -n "$1"; then
echo >&2 "E: $*"
echo >&2 "E: in '$srcfile': '$line'"
else
echo >&2 "E: invalid input in '$srcfile': '$line'"
fi
rm -f "$bn.gen"
exit 1
}
genopt_soptc() {
optc=`echo "$line" | sed 's/^[<>]\(.\).*$/\1/'`
test x"$optc" = x'|' && return
optclo=`echo "$optc" | tr $allu $alll`
if test x"$optc" = x"$optclo"; then
islo=1
else
islo=0
fi
sym=`echo "$line" | sed 's/^[<>]/|/'`
o_str=$o_str$nl"<$optclo$islo$sym"
}
genopt_scond() {
case x$cond in
x)
cond=
;;
x*' '*)
cond=`echo "$cond" | sed 's/^ //'`
cond="#if $cond"
;;
x'!'*)
cond=`echo "$cond" | sed 's/^!//'`
cond="#ifndef $cond"
;;
x*)
cond="#ifdef $cond"
;;
esac
}
do_genopt() {
srcfile=$1
test -f "$srcfile" || genopt_die Source file \$srcfile not set.
bn=`basename "$srcfile" | sed 's/.opt$//'`
o_hdr='/* +++ GENERATED FILE +++ DO NOT EDIT +++ */'
o_gen=
o_str=
o_sym=
ddefs=
state=0
exec <"$srcfile"
IFS=
while IFS= read line; do
IFS=$safeIFS
case $state:$line in
2:'|'*)
# end of input
o_sym=`echo "$line" | sed 's/^.//'`
o_gen=$o_gen$nl"#undef F0"
o_gen=$o_gen$nl"#undef FN"
o_gen=$o_gen$ddefs
state=3
;;
1:@@)
# start of data block
o_gen=$o_gen$nl"#endif"
o_gen=$o_gen$nl"#ifndef F0"
o_gen=$o_gen$nl"#define F0 FN"
o_gen=$o_gen$nl"#endif"
state=2
;;
*:@@*)
genopt_die ;;
0:/\*-|0:\ \**|0:)
o_hdr=$o_hdr$nl$line
;;
0:@*|1:@*)
# start of a definition block
sym=`echo "$line" | sed 's/^@//'`
if test $state = 0; then
o_gen=$o_gen$nl"#if defined($sym)"
else
o_gen=$o_gen$nl"#elif defined($sym)"
fi
ddefs="$ddefs$nl#undef $sym"
state=1
;;
0:*|3:*)
genopt_die ;;
1:*)
# definition line
o_gen=$o_gen$nl$line
;;
2:'<'*'|'*)
genopt_soptc
;;
2:'>'*'|'*)
genopt_soptc
cond=`echo "$line" | sed 's/^[^|]*|//'`
genopt_scond
case $optc in
'|') optc=0 ;;
*) optc=\'$optc\' ;;
esac
IFS= read line || genopt_die Unexpected EOF
IFS=$safeIFS
test -n "$cond" && o_gen=$o_gen$nl"$cond"
o_gen=$o_gen$nl"$line, $optc)"
test -n "$cond" && o_gen=$o_gen$nl"#endif"
;;
esac
done
case $state:$o_sym in
3:) genopt_die Expected optc sym at EOF ;;
3:*) ;;
*) genopt_die Missing EOF marker ;;
esac
echo "$o_str" | sort | while IFS='|' read x opts cond; do
IFS=$safeIFS
test -n "$x" || continue
genopt_scond
test -n "$cond" && echo "$cond"
echo "\"$opts\""
test -n "$cond" && echo "#endif"
done | {
echo "$o_hdr"
echo "#ifndef $o_sym$o_gen"
echo "#else"
cat
echo "#undef $o_sym"
echo "#endif"
} >"$bn.gen"
IFS=$safeIFS
return 0
}
if test x"$BUILDSH_RUN_GENOPT" = x"1"; then
set x -G "$srcfile"
shift
fi
if test x"$1" = x"-G"; then
do_genopt "$2"
exit $?
fi
echo "For the build logs, demonstrate that /dev/null and /dev/tty exist:"
ls -l /dev/null /dev/tty
v() {
$e "$*"
eval "$@"
}
vv() {
_c=$1
shift
$e "\$ $*" 2>&1
eval "$@" >vv.out 2>&1
sed "s^${_c} " <vv.out
}
vq() {
eval "$@"
}
rmf() {
for _f in "$@"; do
case $_f in
Build.sh|check.pl|check.t|dot.mkshrc|*.1|*.c|*.h|*.ico|*.opt) ;;
*) rm -f "$_f" ;;
esac
done
}
tcfn=no
bi=
ui=
ao=
fx=
me=`basename "$0"`
orig_CFLAGS=$CFLAGS
phase=x
oldish_ed=stdout-ed,no-stderr-ed
if test -t 1; then
bi='[1m'
ui='[4m'
ao='[0m'
fi
upper() {
echo :"$@" | sed 's/^://' | tr $alll $allu
}
# clean up after ac_testrun()
ac_testdone() {
eval HAVE_$fu=$fv
fr=no
test 0 = $fv || fr=yes
$e "$bi==> $fd...$ao $ui$fr$ao$fx"
fx=
}
# ac_cache label: sets f, fu, fv?=0
ac_cache() {
f=$1
fu=`upper $f`
eval fv=\$HAVE_$fu
case $fv in
0|1)
fx=' (cached)'
return 0
;;
esac
fv=0
return 1
}
# ac_testinit label [!] checkif[!]0 [setlabelifcheckis[!]0] useroutput
# returns 1 if value was cached/implied, 0 otherwise: call ac_testdone
ac_testinit() {
if ac_cache $1; then
test x"$2" = x"!" && shift
test x"$2" = x"" || shift
fd=${3-$f}
ac_testdone
return 1
fi
fc=0
if test x"$2" = x""; then
ft=1
else
if test x"$2" = x"!"; then
fc=1
shift
fi
eval ft=\$HAVE_`upper $2`
shift
fi
fd=${3-$f}
if test $fc = "$ft"; then
fv=$2
fx=' (implied)'
ac_testdone
return 1
fi
$e ... $fd
return 0
}
# pipe .c | ac_test[n] [!] label [!] checkif[!]0 [setlabelifcheckis[!]0] useroutput
ac_testnnd() {
if test x"$1" = x"!"; then
fr=1
shift
else
fr=0
fi
ac_testinit "$@" || return 1
cat >conftest.c
vv ']' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN conftest.c $LIBS $ccpr"
test $tcfn = no && test -f a.out && tcfn=a.out
test $tcfn = no && test -f a.exe && tcfn=a.exe
test $tcfn = no && test -f conftest.exe && tcfn=conftest.exe
test $tcfn = no && test -f conftest && tcfn=conftest
if test -f $tcfn; then
test 1 = $fr || fv=1
else
test 0 = $fr || fv=1
fi
vscan=
if test $phase = u; then
test $ct = gcc && vscan='unrecogni[sz]ed'
test $ct = hpcc && vscan='unsupported'
test $ct = pcc && vscan='unsupported'
test $ct = sunpro && vscan='-e ignored -e turned.off'
fi
test -n "$vscan" && grep $vscan vv.out >/dev/null 2>&1 && fv=$fr
return 0
}
ac_testn() {
ac_testnnd "$@" || return
rmf conftest.c conftest.o ${tcfn}* vv.out
ac_testdone
}
# ac_ifcpp cppexpr [!] label [!] checkif[!]0 [setlabelifcheckis[!]0] useroutput
ac_ifcpp() {
expr=$1; shift
ac_testn "$@" <<-EOF
#include <unistd.h>
extern int thiswillneverbedefinedIhope(void);
int main(void) { return (isatty(0) +
#$expr
0
#else
/* force a failure: expr is false */
thiswillneverbedefinedIhope()
#endif
); }
EOF
test x"$1" = x"!" && shift
f=$1
fu=`upper $f`
eval fv=\$HAVE_$fu
test x"$fv" = x"1"
}
add_cppflags() {
CPPFLAGS="$CPPFLAGS $*"
}
ac_cppflags() {
test x"$1" = x"" || fu=$1
fv=$2
test x"$2" = x"" && eval fv=\$HAVE_$fu
add_cppflags -DHAVE_$fu=$fv
}
ac_test() {
ac_testn "$@"
ac_cppflags
}
# ac_flags [-] add varname cflags [text] [ldflags]
ac_flags() {
if test x"$1" = x"-"; then
shift
hf=1
else
hf=0
fi
fa=$1
vn=$2
f=$3
ft=$4
fl=$5
test x"$ft" = x"" && ft="if $f can be used"
save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS $f"
if test -n "$fl"; then
save_LDFLAGS=$LDFLAGS
LDFLAGS="$LDFLAGS $fl"
fi
if test 1 = $hf; then
ac_testn can_$vn '' "$ft"
else
ac_testn can_$vn '' "$ft" <<-'EOF'
/* evil apo'stroph in comment test */
#include <unistd.h>
int main(void) { return (isatty(0)); }
EOF
#'
fi
eval fv=\$HAVE_CAN_`upper $vn`
if test -n "$fl"; then
test 11 = $fa$fv || LDFLAGS=$save_LDFLAGS
fi
test 11 = $fa$fv || CFLAGS=$save_CFLAGS
}
# ac_header [!] header [prereq ...]
ac_header() {
if test x"$1" = x"!"; then
na=1
shift
else
na=0
fi
hf=$1; shift
hv=`echo "$hf" | tr -d "$lfcr" | tr -c $alll$allu$alln $alls`
echo "/* NeXTstep bug workaround */" >x
for i
do
case $i in
_time)
echo '#if HAVE_BOTH_TIME_H' >>x
echo '#include <sys/time.h>' >>x
echo '#include <time.h>' >>x
echo '#elif HAVE_SYS_TIME_H' >>x
echo '#include <sys/time.h>' >>x
echo '#elif HAVE_TIME_H' >>x
echo '#include <time.h>' >>x
echo '#endif' >>x
;;
*)
echo "#include <$i>" >>x
;;
esac
done
echo "#include <$hf>" >>x
echo '#include <unistd.h>' >>x
echo 'int main(void) { return (isatty(0)); }' >>x
ac_testn "$hv" "" "<$hf>" <x
rmf x
test 1 = $na || ac_cppflags
}
addsrcs() {
if test x"$1" = x"!"; then
fr=0
shift
else
fr=1
fi
eval i=\$$1
test $fr = "$i" && case " $SRCS " in
*\ $2\ *) ;;
*) SRCS="$SRCS $2" ;;
esac
}
curdir=`pwd` srcdir=`dirname "$0" 2>/dev/null`
case x$srcdir in
x)
srcdir=.
;;
*\ *|*" "*|*"$nl"*)
echo >&2 Source directory should not contain space or tab or newline.
echo >&2 Errors may occur.
;;
*"'"*)
echo Source directory must not contain single quotes.
exit 1
;;
esac
dstversion=`sed -n '/define MKSH_VERSION/s/^.*"\([^"]*\)".*$/\1/p' "$srcdir/sh.h"`
add_cppflags -DMKSH_BUILDSH
e=echo
r=0
eq=0
pm=0
cm=normal
optflags=-std-compile-opts
check_categories=
last=
tfn=
legacy=0
textmode=0
ebcdic=false
for i
do
case $last:$i in
c:combine|c:dragonegg|c:llvm|c:lto)
cm=$i
last=
;;
c:*)
echo "$me: Unknown option -c '$i'!" >&2
exit 1
;;
o:*)
optflags=$i
last=
;;
t:*)
tfn=$i
last=
;;
:-c)
last=c
;;
:-E)
ebcdic=true
;;
:-G)
echo "$me: Do not call me with '-G'!" >&2
exit 1
;;
:-g)
# checker, debug, valgrind build
add_cppflags -DDEBUG
CFLAGS="$CFLAGS -g3 -fno-builtin"
;;
:-j)
pm=1
;;
:-L)
legacy=1
;;
:+L)
legacy=0
;;
:-M)
cm=makefile
;;
:-O)
optflags=-std-compile-opts
;;
:-o)
last=o
;;
:-Q)
eq=1
;;
:-r)
r=1
;;
:-T)
textmode=1
;;
:+T)
textmode=0
;;
:-t)
last=t
;;
:-v)
echo "Build.sh $srcversion"
echo "for mksh $dstversion"
exit 0
;;
:*)
echo "$me: Unknown option '$i'!" >&2
exit 1
;;
*)
echo "$me: Unknown option -'$last' '$i'!" >&2
exit 1
;;
esac
done
if test -n "$last"; then
echo "$me: Option -'$last' not followed by argument!" >&2
exit 1
fi
test -z "$tfn" && if test $legacy = 0; then
tfn=mksh
else
tfn=lksh
fi
if test -d $tfn || test -d $tfn.exe; then
echo "$me: Error: ./$tfn is a directory!" >&2
exit 1
fi
rmf a.exe* a.out* conftest.c conftest.exe* *core core.* ${tfn}* *.bc *.dbg \
*.ll *.o *.gen *.cat1 Rebuild.sh lft no signames.inc test.sh x vv.out
SRCS="lalloc.c edit.c eval.c exec.c expr.c funcs.c histrap.c jobs.c"
SRCS="$SRCS lex.c main.c misc.c shf.c syn.c tree.c var.c"
if test $legacy = 0; then
check_categories="$check_categories shell:legacy-no int:32"
else
check_categories="$check_categories shell:legacy-yes"
add_cppflags -DMKSH_LEGACY_MODE
fi
if $ebcdic; then
add_cppflags -DMKSH_EBCDIC
fi
if test $textmode = 0; then
check_categories="$check_categories shell:textmode-no shell:binmode-yes"
else
check_categories="$check_categories shell:textmode-yes shell:binmode-no"
add_cppflags -DMKSH_WITH_TEXTMODE
fi
if test x"$srcdir" = x"."; then
CPPFLAGS="-I. $CPPFLAGS"
else
CPPFLAGS="-I. -I'$srcdir' $CPPFLAGS"
fi
test -n "$LDSTATIC" && if test -n "$LDFLAGS"; then
LDFLAGS="$LDFLAGS $LDSTATIC"
else
LDFLAGS=$LDSTATIC
fi
if test -z "$TARGET_OS"; then
x=`uname -s 2>/dev/null || uname`
test x"$x" = x"`uname -n 2>/dev/null`" || TARGET_OS=$x
fi
if test -z "$TARGET_OS"; then
echo "$me: Set TARGET_OS, your uname is broken!" >&2
exit 1
fi
oswarn=
ccpc=-Wc,
ccpl=-Wl,
tsts=
ccpr='|| for _f in ${tcfn}*; do case $_f in Build.sh|check.pl|check.t|dot.mkshrc|*.1|*.c|*.h|*.ico|*.opt) ;; *) rm -f "$_f" ;; esac; done'
# Evil hack
if test x"$TARGET_OS" = x"Android"; then
check_categories="$check_categories android"
TARGET_OS=Linux
fi
# Evil OS
if test x"$TARGET_OS" = x"Minix"; then
echo >&2 "
WARNING: additional checks before running Build.sh required!
You can avoid these by calling Build.sh correctly, see below.
"
cat >conftest.c <<'EOF'
#include <sys/types.h>
const char *
#ifdef _NETBSD_SOURCE
ct="Ninix3"
#else
ct="Minix3"
#endif
;
EOF
ct=unknown
vv ']' "${CC-cc} -E $CFLAGS $CPPFLAGS $NOWARN conftest.c | grep ct= | tr -d \\\\015 >x"
sed 's/^/[ /' x
eval `cat x`
rmf x vv.out
case $ct in
Minix3|Ninix3)
echo >&2 "
Warning: you set TARGET_OS to $TARGET_OS but that is ambiguous.
Please set it to either Minix3 or Ninix3, whereas the latter is
all versions of Minix with even partial NetBSD(R) userland. The
value determined from your compiler for the current compilation
(which may be wrong) is: $ct
"
TARGET_OS=$ct
;;
*)
echo >&2 "
Warning: you set TARGET_OS to $TARGET_OS but that is ambiguous.
Please set it to either Minix3 or Ninix3, whereas the latter is
all versions of Minix with even partial NetBSD(R) userland. The
proper value couldn't be determined, continue at your own risk.
"
;;
esac
fi
# Configuration depending on OS revision, on OSes that need them
case $TARGET_OS in
NEXTSTEP)
test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`hostinfo 2>&1 | \
grep 'NeXT Mach [0-9][0-9.]*:' | \
sed 's/^.*NeXT Mach \([0-9][0-9.]*\):.*$/\1/'`
;;
QNX|SCO_SV)
test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`uname -r`
;;
esac
# Configuration depending on OS name
case $TARGET_OS in
386BSD)
: "${HAVE_CAN_OTWO=0}"
add_cppflags -DMKSH_NO_SIGSETJMP
add_cppflags -DMKSH_TYPEDEF_SIG_ATOMIC_T=int
;;
AIX)
add_cppflags -D_ALL_SOURCE
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
BeOS)
case $KSH_VERSION in
*MIRBSD\ KSH*)
oswarn="; it has minor issues"
;;
*)
oswarn="; you must recompile mksh with"
oswarn="$oswarn${nl}itself in a second stage"
;;
esac
# BeOS has no real tty either
add_cppflags -DMKSH_UNEMPLOYED
add_cppflags -DMKSH_DISABLE_TTY_WARNING
# BeOS doesn't have different UIDs and GIDs
add_cppflags -DMKSH__NO_SETEUGID
;;
BSD/OS)
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
Coherent)
oswarn="; it has major issues"
add_cppflags -DMKSH__NO_SYMLINK
check_categories="$check_categories nosymlink"
add_cppflags -DMKSH__NO_SETEUGID
add_cppflags -DMKSH_DISABLE_TTY_WARNING
;;
CYGWIN*)
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
Darwin)
add_cppflags -D_DARWIN_C_SOURCE
;;
DragonFly)
;;
FreeBSD)
;;
FreeMiNT)
oswarn="; it has minor issues"
add_cppflags -D_GNU_SOURCE
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
GNU)
case $CC in
*tendracc*) ;;
*) add_cppflags -D_GNU_SOURCE ;;
esac
add_cppflags -DSETUID_CAN_FAIL_WITH_EAGAIN
# define MKSH__NO_PATH_MAX to use Hurd-only functions
add_cppflags -DMKSH__NO_PATH_MAX
;;
GNU/kFreeBSD)
case $CC in
*tendracc*) ;;
*) add_cppflags -D_GNU_SOURCE ;;
esac
add_cppflags -DSETUID_CAN_FAIL_WITH_EAGAIN
;;
Haiku)
add_cppflags -DMKSH_ASSUME_UTF8
HAVE_ISSET_MKSH_ASSUME_UTF8=1
HAVE_ISOFF_MKSH_ASSUME_UTF8=0
;;
Harvey)
add_cppflags -D_POSIX_SOURCE
add_cppflags -D_LIMITS_EXTENSION
add_cppflags -D_BSD_EXTENSION
add_cppflags -D_SUSV2_SOURCE
add_cppflags -D_GNU_SOURCE
add_cppflags -DMKSH_ASSUME_UTF8
HAVE_ISSET_MKSH_ASSUME_UTF8=1
HAVE_ISOFF_MKSH_ASSUME_UTF8=0
add_cppflags -DMKSH__NO_SYMLINK
check_categories="$check_categories nosymlink"
add_cppflags -DMKSH_NO_CMDLINE_EDITING
add_cppflags -DMKSH__NO_SETEUGID
oswarn=' and will currently not work'
add_cppflags -DMKSH_UNEMPLOYED
add_cppflags -DMKSH_NOPROSPECTOFWORK
# these taken from Harvey-OS github and need re-checking
add_cppflags -D_setjmp=setjmp -D_longjmp=longjmp
: "${HAVE_CAN_NO_EH_FRAME=0}"
: "${HAVE_CAN_FNOSTRICTALIASING=0}"
: "${HAVE_CAN_FSTACKPROTECTORSTRONG=0}"
;;
HP-UX)
;;
Interix)
ccpc='-X '
ccpl='-Y '
add_cppflags -D_ALL_SOURCE
: "${LIBS=-lcrypt}"
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
IRIX*)
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
Jehanne)
add_cppflags -DMKSH_ASSUME_UTF8
HAVE_ISSET_MKSH_ASSUME_UTF8=1
HAVE_ISOFF_MKSH_ASSUME_UTF8=0
add_cppflags -DMKSH__NO_SYMLINK
check_categories="$check_categories nosymlink"
add_cppflags -DMKSH_NO_CMDLINE_EDITING
add_cppflags -DMKSH_DISABLE_REVOKE_WARNING
add_cppflags '-D_PATH_DEFPATH=\"/cmd\"'
add_cppflags '-DMKSH_DEFAULT_EXECSHELL=\"/cmd/mksh\"'
add_cppflags '-DMKSH_DEFAULT_PROFILEDIR=\"/cfg/mksh\"'
add_cppflags '-DMKSH_ENVDIR=\"/env\"'
SRCS="$SRCS jehanne.c"
;;
Linux)
case $CC in
*tendracc*) ;;
*) add_cppflags -D_GNU_SOURCE ;;
esac
add_cppflags -DSETUID_CAN_FAIL_WITH_EAGAIN
: "${HAVE_REVOKE=0}"
;;
LynxOS)
oswarn="; it has minor issues"
;;
MidnightBSD)
;;
Minix-vmd)
add_cppflags -DMKSH__NO_SETEUGID
add_cppflags -DMKSH_UNEMPLOYED
add_cppflags -D_MINIX_SOURCE
oldish_ed=no-stderr-ed # no /bin/ed, maybe see below
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
Minix3)
add_cppflags -DMKSH_UNEMPLOYED
add_cppflags -DMKSH_NO_LIMITS
add_cppflags -D_POSIX_SOURCE -D_POSIX_1_SOURCE=2 -D_MINIX
oldish_ed=no-stderr-ed # /usr/bin/ed(!) is broken
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
MirBSD)
;;
MSYS_*)
add_cppflags -DMKSH_ASSUME_UTF8=0
HAVE_ISSET_MKSH_ASSUME_UTF8=1
HAVE_ISOFF_MKSH_ASSUME_UTF8=1
# almost same as CYGWIN* (from RT|Chatzilla)
: "${HAVE_SETLOCALE_CTYPE=0}"
# broken on this OE (from ir0nh34d)
: "${HAVE_STDINT_H=0}"
;;
NetBSD)
;;
NEXTSTEP)
add_cppflags -D_NEXT_SOURCE
add_cppflags -D_POSIX_SOURCE
: "${AWK=gawk}"
: "${CC=cc -posix}"
add_cppflags -DMKSH_NO_SIGSETJMP
# NeXTstep cannot get a controlling tty
add_cppflags -DMKSH_UNEMPLOYED
case $TARGET_OSREV in
4.2*)
# OpenStep 4.2 is broken by default
oswarn="; it needs libposix.a"
;;
esac
;;
Ninix3)
# similar to Minix3
add_cppflags -DMKSH_UNEMPLOYED
add_cppflags -DMKSH_NO_LIMITS
# but no idea what else could be needed
oswarn="; it has unknown issues"
;;
OpenBSD)
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
OS/2)
add_cppflags -DMKSH_ASSUME_UTF8=0
HAVE_ISSET_MKSH_ASSUME_UTF8=1
HAVE_ISOFF_MKSH_ASSUME_UTF8=1
HAVE_TERMIOS_H=0
HAVE_MKNOD=0 # setmode() incompatible
oswarn="; it is being ported"
check_categories="$check_categories nosymlink"
: "${CC=gcc}"
: "${SIZE=: size}"
SRCS="$SRCS os2.c"
add_cppflags -DMKSH_UNEMPLOYED
add_cppflags -DMKSH_NOPROSPECTOFWORK
add_cppflags -DMKSH_NO_LIMITS
add_cppflags -DMKSH_DOSPATH
if test $textmode = 0; then
x='dis'
y='standard OS/2 tools'
else
x='en'
y='standard Unix mksh and other tools'
fi
echo >&2 "
OS/2 Note: mksh can be built with or without 'textmode'.
Without 'textmode' it will behave like a standard Unix utility,
compatible to mksh on all other platforms, using only ASCII LF
(0x0A) as line ending character. This is supported by the mksh
upstream developer.
With 'textmode', mksh will be modified to behave more like other
OS/2 utilities, supporting ASCII CR+LF (0x0D 0x0A) as line ending
at the cost of deviation from standard mksh. This is supported by
the mksh-os2 porter.
] You are currently compiling with textmode ${x}abled, introducing
] incompatibilities with $y.
"
;;
OS/390)
add_cppflags -DMKSH_ASSUME_UTF8=0
HAVE_ISSET_MKSH_ASSUME_UTF8=1
HAVE_ISOFF_MKSH_ASSUME_UTF8=1
: "${CC=xlc}"
: "${SIZE=: size}"
add_cppflags -DMKSH_FOR_Z_OS
add_cppflags -D_ALL_SOURCE
oswarn='; EBCDIC support is incomplete'
;;
OSF1)
HAVE_SIG_T=0 # incompatible
add_cppflags -D_OSF_SOURCE
add_cppflags -D_POSIX_C_SOURCE=200112L
add_cppflags -D_XOPEN_SOURCE=600
add_cppflags -D_XOPEN_SOURCE_EXTENDED
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
Plan9)
add_cppflags -D_POSIX_SOURCE
add_cppflags -D_LIMITS_EXTENSION
add_cppflags -D_BSD_EXTENSION
add_cppflags -D_SUSV2_SOURCE
add_cppflags -DMKSH_ASSUME_UTF8
HAVE_ISSET_MKSH_ASSUME_UTF8=1
HAVE_ISOFF_MKSH_ASSUME_UTF8=0
add_cppflags -DMKSH__NO_SYMLINK
check_categories="$check_categories nosymlink"
add_cppflags -DMKSH_NO_CMDLINE_EDITING
add_cppflags -DMKSH__NO_SETEUGID
oswarn=' and will currently not work'
add_cppflags -DMKSH_UNEMPLOYED
# this is for detecting kencc
add_cppflags -DMKSH_MAYBE_KENCC
;;
PW32*)
HAVE_SIG_T=0 # incompatible
oswarn=' and will currently not work'
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
QNX)
add_cppflags -D__NO_EXT_QNX
add_cppflags -D__EXT_UNIX_MISC
case $TARGET_OSREV in
[012345].*|6.[0123].*|6.4.[01])
oldish_ed=no-stderr-ed # oldish /bin/ed is broken
;;
esac
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
SCO_SV)
case $TARGET_OSREV in
3.2*)
# SCO OpenServer 5
add_cppflags -DMKSH_UNEMPLOYED
;;
5*)
# SCO OpenServer 6
;;
*)
oswarn='; this is an unknown version of'
oswarn="$oswarn$nl$TARGET_OS ${TARGET_OSREV}, please tell me what to do"
;;
esac
: "${HAVE_SYS_SIGLIST=0}${HAVE__SYS_SIGLIST=0}"
;;
skyos)
oswarn="; it has minor issues"
;;
SunOS)
add_cppflags -D_BSD_SOURCE
add_cppflags -D__EXTENSIONS__
;;
syllable)
add_cppflags -D_GNU_SOURCE
add_cppflags -DMKSH_NO_SIGSUSPEND
oswarn=' and will currently not work'
;;
ULTRIX)
: "${CC=cc -YPOSIX}"
add_cppflags -DMKSH_TYPEDEF_SSIZE_T=int
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
UnixWare|UNIX_SV)
# SCO UnixWare
: "${HAVE_SYS_SIGLIST=0}${HAVE__SYS_SIGLIST=0}"
;;
UWIN*)
ccpc='-Yc,'
ccpl='-Yl,'
tsts=" 3<>/dev/tty"
oswarn="; it will compile, but the target"
oswarn="$oswarn${nl}platform itself is very flakey/unreliable"
: "${HAVE_SETLOCALE_CTYPE=0}"
;;
_svr4)
# generic target for SVR4 Unix with uname -s = uname -n
# this duplicates the * target below
oswarn='; it may or may not work'
test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`uname -r`
;;
*)
oswarn='; it may or may not work'
test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`uname -r`
;;
esac
: "${HAVE_MKNOD=0}"
: "${AWK=awk}${CC=cc}${NROFF=nroff}${SIZE=size}"
test 0 = $r && echo | $NROFF -v 2>&1 | grep GNU >/dev/null 2>&1 && \
echo | $NROFF -c >/dev/null 2>&1 && NROFF="$NROFF -c"
# this aids me in tracing FTBFSen without access to the buildd
$e "Hi from$ao $bi$srcversion$ao on:"
case $TARGET_OS in
AIX)
vv '|' "oslevel >&2"
vv '|' "uname -a >&2"
;;
Darwin)
vv '|' "hwprefs machine_type os_type os_class >&2"
vv '|' "sw_vers >&2"
vv '|' "system_profiler -detailLevel mini SPSoftwareDataType SPHardwareDataType >&2"
vv '|' "/bin/sh --version >&2"
vv '|' "xcodebuild -version >&2"
vv '|' "uname -a >&2"
vv '|' "sysctl kern.version hw.machine hw.model hw.memsize hw.availcpu hw.ncpu hw.cpufrequency hw.byteorder hw.cpu64bit_capable >&2"
vv '|' "sysctl hw.cpufrequency hw.byteorder hw.cpu64bit_capable hw.ncpu >&2"
;;
IRIX*)
vv '|' "uname -a >&2"
vv '|' "hinv -v >&2"
;;
OSF1)
vv '|' "uname -a >&2"
vv '|' "/usr/sbin/sizer -v >&2"
;;
SCO_SV|UnixWare|UNIX_SV)
vv '|' "uname -a >&2"
vv '|' "uname -X >&2"
;;
*)
vv '|' "uname -a >&2"
;;
esac
test -z "$oswarn" || echo >&2 "
Warning: mksh has not yet been ported to or tested on your
operating system '$TARGET_OS'$oswarn. If you can provide
a shell account to the developer, this may improve; please
drop us a success or failure notice or even send in diffs.
"
$e "$bi$me: Building the MirBSD Korn Shell$ao $ui$dstversion$ao on $TARGET_OS ${TARGET_OSREV}..."
#
# Start of mirtoconf checks
#
$e $bi$me: Scanning for functions... please ignore any errors.$ao
#
# Compiler: which one?
#
# notes:
# - ICC defines __GNUC__ too
# - GCC defines __hpux too
# - LLVM+clang defines __GNUC__ too
# - nwcc defines __GNUC__ too
CPP="$CC -E"
$e ... which compiler type seems to be used
cat >conftest.c <<'EOF'
const char *
#if defined(__ICC) || defined(__INTEL_COMPILER)
ct="icc"
#elif defined(__xlC__) || defined(__IBMC__)
ct="xlc"
#elif defined(__SUNPRO_C)
ct="sunpro"
#elif defined(__ACK__)
ct="ack"
#elif defined(__BORLANDC__)
ct="bcc"
#elif defined(__WATCOMC__)
ct="watcom"
#elif defined(__MWERKS__)
ct="metrowerks"
#elif defined(__HP_cc)
ct="hpcc"
#elif defined(__DECC) || (defined(__osf__) && !defined(__GNUC__))
ct="dec"
#elif defined(__PGI)
ct="pgi"
#elif defined(__DMC__)
ct="dmc"
#elif defined(_MSC_VER)
ct="msc"
#elif defined(__ADSPBLACKFIN__) || defined(__ADSPTS__) || defined(__ADSP21000__)
ct="adsp"
#elif defined(__IAR_SYSTEMS_ICC__)
ct="iar"
#elif defined(SDCC)
ct="sdcc"
#elif defined(__PCC__)
ct="pcc"
#elif defined(__TenDRA__)
ct="tendra"
#elif defined(__TINYC__)
ct="tcc"
#elif defined(__llvm__) && defined(__clang__)
ct="clang"
#elif defined(__NWCC__)
ct="nwcc"
#elif defined(__GNUC__)
ct="gcc"
#elif defined(_COMPILER_VERSION)
ct="mipspro"
#elif defined(__sgi)
ct="mipspro"
#elif defined(__hpux) || defined(__hpua)
ct="hpcc"
#elif defined(__ultrix)
ct="ucode"
#elif defined(__USLC__)
ct="uslc"
#elif defined(__LCC__)
ct="lcc"
#elif defined(MKSH_MAYBE_KENCC)
/* and none of the above matches */
ct="kencc"
#else
ct="unknown"
#endif
;
const char *
#if defined(__KLIBC__) && !defined(__OS2__)
et="klibc"
#else
et="unknown"
#endif
;
EOF
ct=untested
et=untested
vv ']' "$CPP $CFLAGS $CPPFLAGS $NOWARN conftest.c | \
sed -n '/^ *[ce]t *= */s/^ *\([ce]t\) *= */\1=/p' | tr -d \\\\015 >x"
sed 's/^/[ /' x
eval `cat x`
rmf x vv.out
cat >conftest.c <<'EOF'
#include <unistd.h>
int main(void) { return (isatty(0)); }
EOF
case $ct in
ack)
# work around "the famous ACK const bug"
CPPFLAGS="-Dconst= $CPPFLAGS"
;;
adsp)
echo >&2 'Warning: Analog Devices C++ compiler for Blackfin, TigerSHARC
and SHARC (21000) DSPs detected. This compiler has not yet
been tested for compatibility with mksh. Continue at your
own risk, please report success/failure to the developers.'
;;
bcc)
echo >&2 "Warning: Borland C++ Builder detected. This compiler might
produce broken executables. Continue at your own risk,
please report success/failure to the developers."
;;
clang)
# does not work with current "ccc" compiler driver
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -version"
# one of these two works, for now
vv '|' "${CLANG-clang} -version"
vv '|' "${CLANG-clang} --version"
# ensure compiler and linker are in sync unless overridden
case $CCC_CC:$CCC_LD in
:*) ;;
*:) CCC_LD=$CCC_CC; export CCC_LD ;;
esac
: "${HAVE_STRING_POOLING=i1}"
;;
dec)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V"
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -Wl,-V conftest.c $LIBS"
;;
dmc)
echo >&2 "Warning: Digital Mars Compiler detected. When running under"
echo >&2 " UWIN, mksh tends to be unstable due to the limitations"
echo >&2 " of this platform. Continue at your own risk,"
echo >&2 " please report success/failure to the developers."
;;
gcc)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
vv '|' 'echo `$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS \
-dumpmachine` gcc`$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN \
$LIBS -dumpversion`'
: "${HAVE_STRING_POOLING=i2}"
;;
hpcc)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
;;
iar)
echo >&2 'Warning: IAR Systems (http://www.iar.com) compiler for embedded
systems detected. This unsupported compiler has not yet
been tested for compatibility with mksh. Continue at your
own risk, please report success/failure to the developers.'
;;
icc)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V"
;;
kencc)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
;;
lcc)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
add_cppflags -D__inline__=__inline
;;
metrowerks)
echo >&2 'Warning: Metrowerks C compiler detected. This has not yet
been tested for compatibility with mksh. Continue at your
own risk, please report success/failure to the developers.'
;;
mipspro)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -version"
;;
msc)
ccpr= # errorlevels are not reliable
case $TARGET_OS in
Interix)
if [[ -n $C89_COMPILER ]]; then
C89_COMPILER=`ntpath2posix -c "$C89_COMPILER"`
else
C89_COMPILER=CL.EXE
fi
if [[ -n $C89_LINKER ]]; then
C89_LINKER=`ntpath2posix -c "$C89_LINKER"`
else
C89_LINKER=LINK.EXE
fi
vv '|' "$C89_COMPILER /HELP >&2"
vv '|' "$C89_LINKER /LINK >&2"
;;
esac
;;
nwcc)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -version"
;;
pcc)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -v"
;;
pgi)
echo >&2 'Warning: PGI detected. This unknown compiler has not yet
been tested for compatibility with mksh. Continue at your
own risk, please report success/failure to the developers.'
;;
sdcc)
echo >&2 'Warning: sdcc (http://sdcc.sourceforge.net), the small devices
C compiler for embedded systems detected. This has not yet
been tested for compatibility with mksh. Continue at your
own risk, please report success/failure to the developers.'
;;
sunpro)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
;;
tcc)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -v"
;;
tendra)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V 2>&1 | \
grep -F -i -e version -e release"
;;
ucode)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V"
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -Wl,-V conftest.c $LIBS"
;;
uslc)
case $TARGET_OS:$TARGET_OSREV in
SCO_SV:3.2*)
# SCO OpenServer 5
CFLAGS="$CFLAGS -g"
: "${HAVE_CAN_OTWO=0}${HAVE_CAN_OPTIMISE=0}"
;;
esac
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
;;
watcom)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
;;
xlc)
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -qversion"
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -qversion=verbose"
vv '|' "ld -V"
;;
*)
test x"$ct" = x"untested" && $e "!!! detecting preprocessor failed"
ct=unknown
vv "$CC --version"
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
;;
esac
case $cm in
dragonegg|llvm)
vv '|' "llc -version"
;;
esac
etd=" on $et"
case $et in
klibc)
add_cppflags -DMKSH_NO_LIMITS
;;
unknown)
# nothing special detected, don’t worry
etd=
;;
*)
# huh?
;;
esac
$e "$bi==> which compiler type seems to be used...$ao $ui$ct$etd$ao"
rmf conftest.c conftest.o conftest a.out* a.exe* conftest.exe* vv.out
#
# Compiler: works as-is, with -Wno-error and -Werror
#
save_NOWARN=$NOWARN
NOWARN=
DOWARN=
ac_flags 0 compiler_works '' 'if the compiler works'
test 1 = $HAVE_CAN_COMPILER_WORKS || exit 1
HAVE_COMPILER_KNOWN=0
test $ct = unknown || HAVE_COMPILER_KNOWN=1
if ac_ifcpp 'if 0' compiler_fails '' \
'if the compiler does not fail correctly'; then
save_CFLAGS=$CFLAGS
: "${HAVE_CAN_DELEXE=x}"
case $ct in
dec)
CFLAGS="$CFLAGS ${ccpl}-non_shared"
ac_testn can_delexe compiler_fails 0 'for the -non_shared linker option' <<-EOF
#include <unistd.h>
int main(void) { return (isatty(0)); }
EOF
;;
dmc)
CFLAGS="$CFLAGS ${ccpl}/DELEXECUTABLE"
ac_testn can_delexe compiler_fails 0 'for the /DELEXECUTABLE linker option' <<-EOF
#include <unistd.h>
int main(void) { return (isatty(0)); }
EOF
;;
*)
exit 1
;;
esac
test 1 = $HAVE_CAN_DELEXE || CFLAGS=$save_CFLAGS
ac_testn compiler_still_fails '' 'if the compiler still does not fail correctly' <<-EOF
EOF
test 1 = $HAVE_COMPILER_STILL_FAILS && exit 1
fi
if ac_ifcpp 'ifdef __TINYC__' couldbe_tcc '!' compiler_known 0 \
'if this could be tcc'; then
ct=tcc
CPP='cpp -D__TINYC__'
HAVE_COMPILER_KNOWN=1
fi
case $ct in
bcc)
save_NOWARN="${ccpc}-w"
DOWARN="${ccpc}-w!"
;;
dec)
# -msg_* flags not used yet, or is -w2 correct?
;;
dmc)
save_NOWARN="${ccpc}-w"
DOWARN="${ccpc}-wx"
;;
hpcc)
save_NOWARN=
DOWARN=+We
;;
kencc)
save_NOWARN=
DOWARN=
;;
mipspro)
save_NOWARN=
DOWARN="-diag_error 1-10000"
;;
msc)
save_NOWARN="${ccpc}/w"
DOWARN="${ccpc}/WX"
;;
sunpro)
test x"$save_NOWARN" = x"" && save_NOWARN='-errwarn=%none'
ac_flags 0 errwarnnone "$save_NOWARN"
test 1 = $HAVE_CAN_ERRWARNNONE || save_NOWARN=
ac_flags 0 errwarnall "-errwarn=%all"
test 1 = $HAVE_CAN_ERRWARNALL && DOWARN="-errwarn=%all"
;;
tendra)
save_NOWARN=-w
;;
ucode)
save_NOWARN=
DOWARN=-w2
;;
watcom)
save_NOWARN=
DOWARN=-Wc,-we
;;
xlc)
case $TARGET_OS in
OS/390)
save_NOWARN=-qflag=e
DOWARN=-qflag=i
;;
*)
save_NOWARN=-qflag=i:e
DOWARN=-qflag=i:i
;;
esac
;;
*)
test x"$save_NOWARN" = x"" && save_NOWARN=-Wno-error
ac_flags 0 wnoerror "$save_NOWARN"
test 1 = $HAVE_CAN_WNOERROR || save_NOWARN=
ac_flags 0 werror -Werror
test 1 = $HAVE_CAN_WERROR && DOWARN=-Werror
test $ct = icc && DOWARN="$DOWARN -wd1419"
;;
esac
NOWARN=$save_NOWARN
#
# Compiler: extra flags (-O2 -f* -W* etc.)
#
i=`echo :"$orig_CFLAGS" | sed 's/^://' | tr -c -d $alll$allu$alln`
# optimisation: only if orig_CFLAGS is empty
test x"$i" = x"" && case $ct in
hpcc)
phase=u
ac_flags 1 otwo +O2
phase=x
;;
kencc|tcc|tendra)
# no special optimisation
;;
sunpro)
cat >x <<-'EOF'
#include <unistd.h>
int main(void) { return (isatty(0)); }
#define __IDSTRING_CONCAT(l,p) __LINTED__ ## l ## _ ## p
#define __IDSTRING_EXPAND(l,p) __IDSTRING_CONCAT(l,p)
#define pad void __IDSTRING_EXPAND(__LINE__,x)(void) { }
EOF
yes pad | head -n 256 >>x
ac_flags - 1 otwo -xO2 <x
rmf x
;;
xlc)
ac_flags 1 othree "-O3 -qstrict"
test 1 = $HAVE_CAN_OTHREE || ac_flags 1 otwo -O2
;;
*)
ac_flags 1 otwo -O2
test 1 = $HAVE_CAN_OTWO || ac_flags 1 optimise -O
;;
esac
# other flags: just add them if they are supported
i=0
case $ct in
bcc)
ac_flags 1 strpool "${ccpc}-d" 'if string pooling can be enabled'
;;
clang)
i=1
;;
dec)
ac_flags 0 verb -verbose
ac_flags 1 rodata -readonly_strings
;;
dmc)
ac_flags 1 decl "${ccpc}-r" 'for strict prototype checks'
ac_flags 1 schk "${ccpc}-s" 'for stack overflow checking'
;;
gcc)
# The following tests run with -Werror (gcc only) if possible
NOWARN=$DOWARN; phase=u
ac_flags 1 wnodeprecateddecls -Wno-deprecated-declarations
# mksh is not written in CFrustFrust!
ac_flags 1 no_eh_frame -fno-asynchronous-unwind-tables
ac_flags 1 fnostrictaliasing -fno-strict-aliasing
ac_flags 1 fstackprotectorstrong -fstack-protector-strong
test 1 = $HAVE_CAN_FSTACKPROTECTORSTRONG || \
ac_flags 1 fstackprotectorall -fstack-protector-all
test $cm = dragonegg && case " $CC $CFLAGS $LDFLAGS " in
*\ -fplugin=*dragonegg*) ;;
*) ac_flags 1 fplugin_dragonegg -fplugin=dragonegg ;;
esac
case $cm in
combine)
fv=0
checks='7 8'
;;
lto)
fv=0
checks='1 2 3 4 5 6 7 8'
;;
*)
fv=1
;;
esac
test $fv = 1 || for what in $checks; do
test $fv = 1 && break
case $what in
1) t_cflags='-flto=jobserver'
t_ldflags='-fuse-linker-plugin'
t_use=1 t_name=fltojs_lp ;;
2) t_cflags='-flto=jobserver' t_ldflags=''
t_use=1 t_name=fltojs_nn ;;
3) t_cflags='-flto=jobserver'
t_ldflags='-fno-use-linker-plugin -fwhole-program'
t_use=1 t_name=fltojs_np ;;
4) t_cflags='-flto'
t_ldflags='-fuse-linker-plugin'
t_use=1 t_name=fltons_lp ;;
5) t_cflags='-flto' t_ldflags=''
t_use=1 t_name=fltons_nn ;;
6) t_cflags='-flto'
t_ldflags='-fno-use-linker-plugin -fwhole-program'
t_use=1 t_name=fltons_np ;;
7) t_cflags='-fwhole-program --combine' t_ldflags=''
t_use=0 t_name=combine cm=combine ;;
8) fv=1 cm=normal ;;
esac
test $fv = 1 && break
ac_flags $t_use $t_name "$t_cflags" \
"if gcc supports $t_cflags $t_ldflags" "$t_ldflags"
done
ac_flags 1 data_abi_align -malign-data=abi
i=1
;;
hpcc)
phase=u
# probably not needed
#ac_flags 1 agcc -Agcc 'for support of GCC extensions'
phase=x
;;
icc)
ac_flags 1 fnobuiltinsetmode -fno-builtin-setmode
ac_flags 1 fnostrictaliasing -fno-strict-aliasing
ac_flags 1 fstacksecuritycheck -fstack-security-check
i=1
;;
mipspro)
ac_flags 1 fullwarn -fullwarn 'for remark output support'
;;
msc)
ac_flags 1 strpool "${ccpc}/GF" 'if string pooling can be enabled'
echo 'int main(void) { char test[64] = ""; return (*test); }' >x
ac_flags - 1 stackon "${ccpc}/GZ" 'if stack checks can be enabled' <x
ac_flags - 1 stckall "${ccpc}/Ge" 'stack checks for all functions' <x
ac_flags - 1 secuchk "${ccpc}/GS" 'for compiler security checks' <x
rmf x
ac_flags 1 wall "${ccpc}/Wall" 'to enable all warnings'
ac_flags 1 wp64 "${ccpc}/Wp64" 'to enable 64-bit warnings'
;;
nwcc)
#broken# ac_flags 1 ssp -stackprotect
i=1
;;
pcc)
ac_flags 1 fstackprotectorall -fstack-protector-all
i=1
;;
sunpro)
phase=u
ac_flags 1 v -v
ac_flags 1 ipo -xipo 'for cross-module optimisation'
phase=x
;;
tcc)
: #broken# ac_flags 1 boundschk -b
;;
tendra)
ac_flags 0 ysystem -Ysystem
test 1 = $HAVE_CAN_YSYSTEM && CPPFLAGS="-Ysystem $CPPFLAGS"
ac_flags 1 extansi -Xa
;;
xlc)
case $TARGET_OS in
OS/390)
# On IBM z/OS, the following are warnings by default:
# CCN3296: #include file <foo.h> not found.
# CCN3944: Attribute "__foo__" is not supported and is ignored.
# CCN3963: The attribute "foo" is not a valid variable attribute and is ignored.
ac_flags 1 halton '-qhaltonmsg=CCN3296 -qhaltonmsg=CCN3944 -qhaltonmsg=CCN3963'
# CCN3290: Unknown macro name FOO on #undef directive.
# CCN4108: The use of keyword '__attribute__' is non-portable.
ac_flags 1 supprss '-qsuppress=CCN3290 -qsuppress=CCN4108'
;;
*)
ac_flags 1 rodata '-qro -qroconst -qroptr'
ac_flags 1 rtcheck -qcheck=all
#ac_flags 1 rtchkc -qextchk # reported broken
ac_flags 1 wformat '-qformat=all -qformat=nozln'
;;
esac
#ac_flags 1 wp64 -qwarn64 # too verbose for now
;;
esac
# flags common to a subset of compilers (run with -Werror on gcc)
if test 1 = $i; then
ac_flags 1 wall -Wall
ac_flags 1 fwrapv -fwrapv
fi
# “on demand” means: GCC version >= 4
fd='if to rely on compiler for string pooling'
ac_cache string_pooling || case $HAVE_STRING_POOLING in
2) fx=' (on demand, cached)' ;;
i1) fv=1 ;;
i2) fv=2; fx=' (on demand)' ;;
esac
ac_testdone
test x"$HAVE_STRING_POOLING" = x"0" || ac_cppflags
phase=x
# The following tests run with -Werror or similar (all compilers) if possible
NOWARN=$DOWARN
test $ct = pcc && phase=u
#
# Compiler: check for stuff that only generates warnings
#
ac_test attribute_bounded '' 'for __attribute__((__bounded__))' <<-'EOF'
#if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
extern int thiswillneverbedefinedIhope(void);
/* force a failure: TenDRA and gcc 1.42 have false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
#else
#include <string.h>
#undef __attribute__
int xcopy(const void *, void *, size_t)
__attribute__((__bounded__(__buffer__, 1, 3)))
__attribute__((__bounded__(__buffer__, 2, 3)));
int main(int ac, char *av[]) { return (xcopy(av[0], av[--ac], 1)); }
int xcopy(const void *s, void *d, size_t n) {
/*
* if memmove does not exist, we are not on a system
* with GCC with __bounded__ attribute either so poo
*/
memmove(d, s, n); return ((int)n);
}
#endif
EOF
ac_test attribute_format '' 'for __attribute__((__format__))' <<-'EOF'
#if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
extern int thiswillneverbedefinedIhope(void);
/* force a failure: TenDRA and gcc 1.42 have false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
#else
#define fprintf printfoo
#include <stdio.h>
#undef __attribute__
#undef fprintf
extern int fprintf(FILE *, const char *format, ...)
__attribute__((__format__(__printf__, 2, 3)));
int main(int ac, char **av) { return (fprintf(stderr, "%s%d", *av, ac)); }
#endif
EOF
ac_test attribute_noreturn '' 'for __attribute__((__noreturn__))' <<-'EOF'
#if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
extern int thiswillneverbedefinedIhope(void);
/* force a failure: TenDRA and gcc 1.42 have false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
#else
#include <stdlib.h>
#undef __attribute__
void fnord(void) __attribute__((__noreturn__));
int main(void) { fnord(); }
void fnord(void) { exit(0); }
#endif
EOF
ac_test attribute_pure '' 'for __attribute__((__pure__))' <<-'EOF'
#if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
extern int thiswillneverbedefinedIhope(void);
/* force a failure: TenDRA and gcc 1.42 have false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
#else
#include <unistd.h>
#undef __attribute__
int foo(const char *) __attribute__((__pure__));
int main(int ac, char **av) { return (foo(av[ac - 1]) + isatty(0)); }
int foo(const char *s) { return ((int)s[0]); }
#endif
EOF
ac_test attribute_unused '' 'for __attribute__((__unused__))' <<-'EOF'
#if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
extern int thiswillneverbedefinedIhope(void);
/* force a failure: TenDRA and gcc 1.42 have false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
#else
#include <unistd.h>
#undef __attribute__
int main(int ac __attribute__((__unused__)), char **av
__attribute__((__unused__))) { return (isatty(0)); }
#endif
EOF
ac_test attribute_used '' 'for __attribute__((__used__))' <<-'EOF'
#if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
extern int thiswillneverbedefinedIhope(void);
/* force a failure: TenDRA and gcc 1.42 have false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
#else
#include <unistd.h>
#undef __attribute__
static const char fnord[] __attribute__((__used__)) = "42";
int main(void) { return (isatty(0)); }
#endif
EOF
# End of tests run with -Werror
NOWARN=$save_NOWARN
phase=x
#
# mksh: flavours (full/small mksh, omit certain stuff)
#
if ac_ifcpp 'ifdef MKSH_SMALL' isset_MKSH_SMALL '' \
"if a reduced-feature mksh is requested"; then
: "${HAVE_NICE=0}"
: "${HAVE_PERSISTENT_HISTORY=0}"
check_categories="$check_categories smksh"
fi
ac_ifcpp 'if defined(MKSH_BINSHPOSIX) || defined(MKSH_BINSHREDUCED)' \
isset_MKSH_BINSH '' 'if invoking as sh should be handled specially' && \
check_categories="$check_categories binsh"
ac_ifcpp 'ifdef MKSH_UNEMPLOYED' isset_MKSH_UNEMPLOYED '' \
"if mksh will be built without job control" && \
check_categories="$check_categories arge"
ac_ifcpp 'ifdef MKSH_NOPROSPECTOFWORK' isset_MKSH_NOPROSPECTOFWORK '' \
"if mksh will be built without job signals" && \
check_categories="$check_categories arge nojsig"
ac_ifcpp 'ifdef MKSH_ASSUME_UTF8' isset_MKSH_ASSUME_UTF8 '' \
'if the default UTF-8 mode is specified' && : "${HAVE_SETLOCALE_CTYPE=0}"
ac_ifcpp 'if !MKSH_ASSUME_UTF8' isoff_MKSH_ASSUME_UTF8 \
isset_MKSH_ASSUME_UTF8 0 \
'if the default UTF-8 mode is disabled' && \
check_categories="$check_categories noutf8"
#ac_ifcpp 'ifdef MKSH_DISABLE_DEPRECATED' isset_MKSH_DISABLE_DEPRECATED '' \
# "if deprecated features are to be omitted" && \
# check_categories="$check_categories nodeprecated"
#ac_ifcpp 'ifdef MKSH_DISABLE_EXPERIMENTAL' isset_MKSH_DISABLE_EXPERIMENTAL '' \
# "if experimental features are to be omitted" && \
# check_categories="$check_categories noexperimental"
ac_ifcpp 'ifdef MKSH_MIDNIGHTBSD01ASH_COMPAT' isset_MKSH_MIDNIGHTBSD01ASH_COMPAT '' \
'if the MidnightBSD 0.1 ash compatibility mode is requested' && \
check_categories="$check_categories mnbsdash"
#
# Environment: headers
#
ac_header sys/time.h sys/types.h
ac_header time.h sys/types.h
test "11" = "$HAVE_SYS_TIME_H$HAVE_TIME_H" || HAVE_BOTH_TIME_H=0
ac_test both_time_h '' 'whether <sys/time.h> and <time.h> can both be included' <<-'EOF'
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
int main(void) { struct tm tm; return ((int)sizeof(tm) + isatty(0)); }
EOF
ac_header sys/bsdtypes.h
ac_header sys/file.h sys/types.h
ac_header sys/mkdev.h sys/types.h
ac_header sys/mman.h sys/types.h
ac_header sys/param.h
ac_header sys/resource.h sys/types.h _time
ac_header sys/select.h sys/types.h
ac_header sys/sysmacros.h
ac_header bstring.h
ac_header grp.h sys/types.h
ac_header io.h
ac_header libgen.h
ac_header libutil.h sys/types.h
ac_header paths.h
ac_header stdint.h stdarg.h
# include strings.h only if compatible with string.h
ac_header strings.h sys/types.h string.h
ac_header termios.h
ac_header ulimit.h sys/types.h
ac_header values.h
#
# Environment: definitions
#
echo '#include <sys/types.h>
#include <unistd.h>
/* check that off_t can represent 2^63-1 correctly, thx FSF */
#define LARGE_OFF_T ((((off_t)1 << 31) << 31) - 1 + (((off_t)1 << 31) << 31))
int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 &&
LARGE_OFF_T % 2147483647 == 1) ? 1 : -1];
int main(void) { return (isatty(0)); }' >lft.c
ac_testn can_lfs '' "for large file support" <lft.c
save_CPPFLAGS=$CPPFLAGS
add_cppflags -D_FILE_OFFSET_BITS=64
ac_testn can_lfs_sus '!' can_lfs 0 "... with -D_FILE_OFFSET_BITS=64" <lft.c
if test 0 = $HAVE_CAN_LFS_SUS; then
CPPFLAGS=$save_CPPFLAGS
add_cppflags -D_LARGE_FILES=1
ac_testn can_lfs_aix '!' can_lfs 0 "... with -D_LARGE_FILES=1" <lft.c
test 1 = $HAVE_CAN_LFS_AIX || CPPFLAGS=$save_CPPFLAGS
fi
rm -f lft.c
rmf lft* # end of large file support test
#
# Environment: types
#
ac_test can_inttypes '!' stdint_h 1 "for standard 32-bit integer types" <<-'EOF'
#include <sys/types.h>
#include <stddef.h>
int main(int ac, char **av) { return ((uint32_t)(size_t)*av + (int32_t)ac); }
EOF
ac_test can_ucbints '!' can_inttypes 1 "for UCB 32-bit integer types" <<-'EOF'
#include <sys/types.h>
#include <stddef.h>
int main(int ac, char **av) { return ((u_int32_t)(size_t)*av + (int32_t)ac); }
EOF
ac_test can_int8type '!' stdint_h 1 "for standard 8-bit integer type" <<-'EOF'
#include <sys/types.h>
#include <stddef.h>
int main(int ac, char **av) { return ((uint8_t)(size_t)av[ac]); }
EOF
ac_test can_ucbint8 '!' can_int8type 1 "for UCB 8-bit integer type" <<-'EOF'
#include <sys/types.h>
#include <stddef.h>
int main(int ac, char **av) { return ((u_int8_t)(size_t)av[ac]); }
EOF
ac_test rlim_t <<-'EOF'
#include <sys/types.h>
#if HAVE_BOTH_TIME_H
#include <sys/time.h>
#include <time.h>
#elif HAVE_SYS_TIME_H
#include <sys/time.h>
#elif HAVE_TIME_H
#include <time.h>
#endif
#if HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#include <unistd.h>
int main(void) { return (((int)(rlim_t)0) + isatty(0)); }
EOF
# only testn: added later below
ac_testn sig_t <<-'EOF'
#include <sys/types.h>
#include <signal.h>
#include <stddef.h>
volatile sig_t foo = (sig_t)0;
int main(void) { return (foo == (sig_t)0); }
EOF
ac_testn sighandler_t '!' sig_t 0 <<-'EOF'
#include <sys/types.h>
#include <signal.h>
#include <stddef.h>
volatile sighandler_t foo = (sighandler_t)0;
int main(void) { return (foo == (sighandler_t)0); }
EOF
if test 1 = $HAVE_SIGHANDLER_T; then
add_cppflags -Dsig_t=sighandler_t
HAVE_SIG_T=1
fi
ac_testn __sighandler_t '!' sig_t 0 <<-'EOF'
#include <sys/types.h>
#include <signal.h>
#include <stddef.h>
volatile __sighandler_t foo = (__sighandler_t)0;
int main(void) { return (foo == (__sighandler_t)0); }
EOF
if test 1 = $HAVE___SIGHANDLER_T; then
add_cppflags -Dsig_t=__sighandler_t
HAVE_SIG_T=1
fi
test 1 = $HAVE_SIG_T || add_cppflags -Dsig_t=nosig_t
ac_cppflags SIG_T
#
# check whether whatever we use for the final link will succeed
#
if test $cm = makefile; then
: nothing to check
else
HAVE_LINK_WORKS=x
ac_testinit link_works '' 'checking if the final link command may succeed'
fv=1
cat >conftest.c <<-EOF
#define EXTERN
#define MKSH_INCLUDES_ONLY
#include "sh.h"
__RCSID("$srcversion");
int main(void) { printf("Hello, World!\\n"); return (isatty(0)); }
EOF
case $cm in
llvm)
v "$CC $CFLAGS $CPPFLAGS $NOWARN -emit-llvm -c conftest.c" || fv=0
rmf $tfn.s
test $fv = 0 || v "llvm-link -o - conftest.o | opt $optflags | llc -o $tfn.s" || fv=0
test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn $tfn.s $LIBS $ccpr"
;;
dragonegg)
v "$CC $CFLAGS $CPPFLAGS $NOWARN -S -flto conftest.c" || fv=0
test $fv = 0 || v "mv conftest.s conftest.ll"
test $fv = 0 || v "llvm-as conftest.ll" || fv=0
rmf $tfn.s
test $fv = 0 || v "llvm-link -o - conftest.bc | opt $optflags | llc -o $tfn.s" || fv=0
test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn $tfn.s $LIBS $ccpr"
;;
combine)
v "$CC $CFLAGS $CPPFLAGS $LDFLAGS -fwhole-program --combine $NOWARN -o $tcfn conftest.c $LIBS $ccpr"
;;
lto|normal)
cm=normal
v "$CC $CFLAGS $CPPFLAGS $NOWARN -c conftest.c" || fv=0
test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn conftest.o $LIBS $ccpr"
;;
esac
test -f $tcfn || fv=0
ac_testdone
test $fv = 1 || exit 1
fi
#
# Environment: errors and signals
#
test x"NetBSD" = x"$TARGET_OS" && $e Ignore the compatibility warning.
ac_testn sys_errlist '' "the sys_errlist[] array and sys_nerr" <<-'EOF'
extern const int sys_nerr;
extern const char * const sys_errlist[];
extern int isatty(int);
int main(void) { return (*sys_errlist[sys_nerr - 1] + isatty(0)); }
EOF
ac_testn _sys_errlist '!' sys_errlist 0 "the _sys_errlist[] array and _sys_nerr" <<-'EOF'
extern const int _sys_nerr;
extern const char * const _sys_errlist[];
extern int isatty(int);
int main(void) { return (*_sys_errlist[_sys_nerr - 1] + isatty(0)); }
EOF
if test 1 = "$HAVE__SYS_ERRLIST"; then
add_cppflags -Dsys_nerr=_sys_nerr
add_cppflags -Dsys_errlist=_sys_errlist
HAVE_SYS_ERRLIST=1
fi
ac_cppflags SYS_ERRLIST
for what in name list; do
uwhat=`upper $what`
ac_testn sys_sig$what '' "the sys_sig${what}[] array" <<-EOF
extern const char * const sys_sig${what}[];
extern int isatty(int);
int main(void) { return (sys_sig${what}[0][0] + isatty(0)); }
EOF
ac_testn _sys_sig$what '!' sys_sig$what 0 "the _sys_sig${what}[] array" <<-EOF
extern const char * const _sys_sig${what}[];
extern int isatty(int);
int main(void) { return (_sys_sig${what}[0][0] + isatty(0)); }
EOF
eval uwhat_v=\$HAVE__SYS_SIG$uwhat
if test 1 = "$uwhat_v"; then
add_cppflags -Dsys_sig$what=_sys_sig$what
eval HAVE_SYS_SIG$uwhat=1
fi
ac_cppflags SYS_SIG$uwhat
done
#
# Environment: library functions
#
ac_test flock <<-'EOF'
#include <sys/types.h>
#include <fcntl.h>
#undef flock
#if HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
int main(void) { return (flock(0, LOCK_EX | LOCK_UN)); }
EOF
ac_test lock_fcntl '!' flock 1 'whether we can lock files with fcntl' <<-'EOF'
#include <fcntl.h>
#undef flock
int main(void) {
struct flock lks;
lks.l_type = F_WRLCK | F_UNLCK;
return (fcntl(0, F_SETLKW, &lks));
}
EOF
ac_test getrusage <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
int main(void) {
struct rusage ru;
return (getrusage(RUSAGE_SELF, &ru) +
getrusage(RUSAGE_CHILDREN, &ru));
}
EOF
ac_test getsid <<-'EOF'
#include <unistd.h>
int main(void) { return ((int)getsid(0)); }
EOF
ac_test gettimeofday <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
int main(void) { struct timeval tv; return (gettimeofday(&tv, NULL)); }
EOF
ac_test killpg <<-'EOF'
#include <signal.h>
int main(int ac, char *av[]) { return (av[0][killpg(123, ac)]); }
EOF
ac_test memmove <<-'EOF'
#include <sys/types.h>
#include <stddef.h>
#include <string.h>
#if HAVE_STRINGS_H
#include <strings.h>
#endif
int main(int ac, char *av[]) {
return (*(int *)(void *)memmove(av[0], av[1], (size_t)ac));
}
EOF
ac_test mknod '' 'if to use mknod(), makedev() and friends' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
int main(int ac, char *av[]) {
dev_t dv;
dv = makedev((unsigned int)ac, (unsigned int)av[0][0]);
return (mknod(av[0], (mode_t)0, dv) ? (int)major(dv) :
(int)minor(dv));
}
EOF
ac_test mmap lock_fcntl 0 'for mmap and munmap' <<-'EOF'
#include <sys/types.h>
#if HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
#if HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
#include <stddef.h>
#include <stdlib.h>
int main(void) { return ((void *)mmap(NULL, (size_t)0,
PROT_READ, MAP_PRIVATE, 0, (off_t)0) == (void *)NULL ? 1 :
munmap(NULL, 0)); }
EOF
ac_test ftruncate mmap 0 'for ftruncate' <<-'EOF'
#include <unistd.h>
int main(void) { return (ftruncate(0, 0)); }
EOF
ac_test nice <<-'EOF'
#include <unistd.h>
int main(void) { return (nice(4)); }
EOF
ac_test revoke <<-'EOF'
#include <sys/types.h>
#if HAVE_LIBUTIL_H
#include <libutil.h>
#endif
#include <unistd.h>
int main(int ac, char *av[]) { return (ac + revoke(av[0])); }
EOF
ac_test setlocale_ctype '' 'setlocale(LC_CTYPE, "")' <<-'EOF'
#include <locale.h>
#include <stddef.h>
int main(void) { return ((int)(size_t)(void *)setlocale(LC_CTYPE, "")); }
EOF
ac_test langinfo_codeset setlocale_ctype 0 'nl_langinfo(CODESET)' <<-'EOF'
#include <langinfo.h>
#include <stddef.h>
int main(void) { return ((int)(size_t)(void *)nl_langinfo(CODESET)); }
EOF
ac_test select <<-'EOF'
#include <sys/types.h>
#if HAVE_BOTH_TIME_H
#include <sys/time.h>
#include <time.h>
#elif HAVE_SYS_TIME_H
#include <sys/time.h>
#elif HAVE_TIME_H
#include <time.h>
#endif
#if HAVE_SYS_BSDTYPES_H
#include <sys/bsdtypes.h>
#endif
#if HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#if HAVE_BSTRING_H
#include <bstring.h>
#endif
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#if HAVE_STRINGS_H
#include <strings.h>
#endif
#include <unistd.h>
int main(void) {
struct timeval tv = { 1, 200000 };
fd_set fds; FD_ZERO(&fds); FD_SET(0, &fds);
return (select(FD_SETSIZE, &fds, NULL, NULL, &tv));
}
EOF
ac_test setresugid <<-'EOF'
#include <sys/types.h>
#include <unistd.h>
int main(void) { return (setresuid(0,0,0) + setresgid(0,0,0)); }
EOF
ac_test setgroups setresugid 0 <<-'EOF'
#include <sys/types.h>
#if HAVE_GRP_H
#include <grp.h>
#endif
#include <unistd.h>
int main(void) { gid_t gid = 0; return (setgroups(0, &gid)); }
EOF
if test x"$et" = x"klibc"; then
ac_testn __rt_sigsuspend '' 'whether klibc uses RT signals' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
extern int __rt_sigsuspend(const sigset_t *, size_t);
int main(void) { return (__rt_sigsuspend(NULL, 0)); }
EOF
# no? damn! legacy crap ahead!
ac_testn __sigsuspend_s '!' __rt_sigsuspend 1 \
'whether sigsuspend is usable (1/2)' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
extern int __sigsuspend_s(sigset_t);
int main(void) { return (__sigsuspend_s(0)); }
EOF
ac_testn __sigsuspend_xxs '!' __sigsuspend_s 1 \
'whether sigsuspend is usable (2/2)' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
extern int __sigsuspend_xxs(int, int, sigset_t);
int main(void) { return (__sigsuspend_xxs(0, 0, 0)); }
EOF
if test "000" = "$HAVE___RT_SIGSUSPEND$HAVE___SIGSUSPEND_S$HAVE___SIGSUSPEND_XXS"; then
# no usable sigsuspend(), use pause() *ugh*
add_cppflags -DMKSH_NO_SIGSUSPEND
fi
fi
ac_test strerror '!' sys_errlist 0 <<-'EOF'
extern char *strerror(int);
int main(int ac, char *av[]) { return (*strerror(*av[ac])); }
EOF
ac_test strsignal '!' sys_siglist 0 <<-'EOF'
#include <string.h>
#include <signal.h>
int main(void) { return (strsignal(1)[0]); }
EOF
ac_test strlcpy <<-'EOF'
#include <string.h>
int main(int ac, char *av[]) { return (strlcpy(*av, av[1],
(size_t)ac)); }
EOF
#
# check headers for declarations
#
ac_test flock_decl flock 1 'for declaration of flock()' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
#if HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
int main(void) { return ((flock)(0, 0)); }
EOF
ac_test revoke_decl revoke 1 'for declaration of revoke()' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
int main(void) { return ((revoke)("")); }
EOF
ac_test sys_errlist_decl sys_errlist 0 "for declaration of sys_errlist[] and sys_nerr" <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
int main(void) { return (*sys_errlist[sys_nerr - 1] + isatty(0)); }
EOF
ac_test sys_siglist_decl sys_siglist 0 'for declaration of sys_siglist[]' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
int main(void) { return (sys_siglist[0][0] + isatty(0)); }
EOF
#
# other checks
#
fd='if to use persistent history'
ac_cache PERSISTENT_HISTORY || case $HAVE_FTRUNCATE$HAVE_MMAP$HAVE_FLOCK$HAVE_LOCK_FCNTL in
111*|1101) fv=1 ;;
esac
test 1 = $fv || check_categories="$check_categories no-histfile"
ac_testdone
ac_cppflags
#
# extra checks for legacy mksh
#
if test $legacy = 1; then
ac_test long_32bit '' 'whether long is 32 bit wide' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
#ifndef CHAR_BIT
#define CHAR_BIT 0
#endif
struct ctasserts {
#define cta(name, assertion) char name[(assertion) ? 1 : -1]
cta(char_is_8_bits, (CHAR_BIT) == 8);
cta(long_is_32_bits, sizeof(long) == 4);
};
int main(void) { return (sizeof(struct ctasserts)); }
EOF
ac_test long_64bit '!' long_32bit 0 'whether long is 64 bit wide' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
#ifndef CHAR_BIT
#define CHAR_BIT 0
#endif
struct ctasserts {
#define cta(name, assertion) char name[(assertion) ? 1 : -1]
cta(char_is_8_bits, (CHAR_BIT) == 8);
cta(long_is_64_bits, sizeof(long) == 8);
};
int main(void) { return (sizeof(struct ctasserts)); }
EOF
case $HAVE_LONG_32BIT$HAVE_LONG_64BIT in
10) check_categories="$check_categories int:32" ;;
01) check_categories="$check_categories int:64" ;;
*) check_categories="$check_categories int:u" ;;
esac
fi
#
# Compiler: Praeprocessor (only if needed)
#
test 0 = $HAVE_SYS_SIGNAME && if ac_testinit cpp_dd '' \
'checking if the C Preprocessor supports -dD'; then
echo '#define foo bar' >conftest.c
vv ']' "$CPP $CFLAGS $CPPFLAGS $NOWARN -dD conftest.c >x"
grep '#define foo bar' x >/dev/null 2>&1 && fv=1
rmf conftest.c x vv.out
ac_testdone
fi
#
# End of mirtoconf checks
#
$e ... done.
# Some operating systems have ancient versions of ed(1) writing
# the character count to standard output; cope for that
echo wq >x
ed x <x 2>/dev/null | grep 3 >/dev/null 2>&1 && \
check_categories="$check_categories $oldish_ed"
rmf x vv.out
if test 0 = $HAVE_SYS_SIGNAME; then
if test 1 = $HAVE_CPP_DD; then
$e Generating list of signal names...
else
$e No list of signal names available via cpp. Falling back...
fi
sigseenone=:
sigseentwo=:
echo '#include <signal.h>
#if defined(NSIG_MAX)
#define cfg_NSIG NSIG_MAX
#elif defined(NSIG)
#define cfg_NSIG NSIG
#elif defined(_NSIG)
#define cfg_NSIG _NSIG
#elif defined(SIGMAX)
#define cfg_NSIG (SIGMAX + 1)
#elif defined(_SIGMAX)
#define cfg_NSIG (_SIGMAX + 1)
#else
/*XXX better error out, see sh.h */
#define cfg_NSIG 64
#endif
int
mksh_cfg= cfg_NSIG
;' >conftest.c
# GNU sed 2.03 segfaults when optimising this to sed -n
NSIG=`vq "$CPP $CFLAGS $CPPFLAGS $NOWARN conftest.c" | \
grep -v '^#' | \
sed '/mksh_cfg.*= *$/{
N
s/\n/ /
}' | \
grep '^ *mksh_cfg *=' | \
sed 's/^ *mksh_cfg *=[ ]*\([()0-9x+-][()0-9x+ -]*\).*$/\1/'`
case $NSIG in
*mksh_cfg*) $e "Error: NSIG='$NSIG'"; NSIG=0 ;;
*[\ \(\)+-]*) NSIG=`"$AWK" "BEGIN { print $NSIG }" </dev/null` ;;
esac
printf=printf
(printf hallo) >/dev/null 2>&1 || printf=echo
test $printf = echo || test "`printf %d 42`" = 42 || printf=echo
test $printf = echo || NSIG=`printf %d "$NSIG" 2>/dev/null`
$printf "NSIG=$NSIG ... "
sigs="ABRT FPE ILL INT SEGV TERM ALRM BUS CHLD CONT HUP KILL PIPE QUIT"
sigs="$sigs STOP TSTP TTIN TTOU USR1 USR2 POLL PROF SYS TRAP URG VTALRM"
sigs="$sigs XCPU XFSZ INFO WINCH EMT IO DIL LOST PWR SAK CLD IOT STKFLT"
sigs="$sigs ABND DCE DUMP IOERR TRACE DANGER THCONT THSTOP RESV UNUSED"
test 1 = $HAVE_CPP_DD && test $NSIG -gt 1 && sigs="$sigs "`vq \
"$CPP $CFLAGS $CPPFLAGS $NOWARN -dD conftest.c" | \
grep '[ ]SIG[A-Z0-9][A-Z0-9]*[ ]' | \
sed 's/^.*[ ]SIG\([A-Z0-9][A-Z0-9]*\)[ ].*$/\1/' | sort`
test $NSIG -gt 1 || sigs=
for name in $sigs; do
case $sigseenone in
*:$name:*) continue ;;
esac
sigseenone=$sigseenone$name:
echo '#include <signal.h>' >conftest.c
echo int >>conftest.c
echo mksh_cfg= SIG$name >>conftest.c
echo ';' >>conftest.c
# GNU sed 2.03 croaks on optimising this, too
vq "$CPP $CFLAGS $CPPFLAGS $NOWARN conftest.c" | \
grep -v '^#' | \
sed '/mksh_cfg.*= *$/{
N
s/\n/ /
}' | \
grep '^ *mksh_cfg *=' | \
sed 's/^ *mksh_cfg *=[ ]*\([0-9][0-9x]*\).*$/:\1 '$name/
done | sed -n '/^:[^ ]/s/^://p' | while read nr name; do
test $printf = echo || nr=`printf %d "$nr" 2>/dev/null`
test $nr -gt 0 && test $nr -lt $NSIG || continue
case $sigseentwo in
*:$nr:*) ;;
*) echo " { \"$name\", $nr },"
sigseentwo=$sigseentwo$nr:
$printf "$name=$nr " >&2
;;
esac
done 2>&1 >signames.inc
rmf conftest.c
$e done.
fi
addsrcs '!' HAVE_STRLCPY strlcpy.c
addsrcs USE_PRINTF_BUILTIN printf.c
test 1 = "$USE_PRINTF_BUILTIN" && add_cppflags -DMKSH_PRINTF_BUILTIN
test 1 = "$HAVE_CAN_VERB" && CFLAGS="$CFLAGS -verbose"
add_cppflags -DMKSH_BUILD_R=571
$e $bi$me: Finished configuration testing, now producing output.$ao
files=
objs=
sp=
case $tcfn in
a.exe|conftest.exe)
mkshexe=$tfn.exe
add_cppflags -DMKSH_EXE_EXT
;;
*)
mkshexe=$tfn
;;
esac
case $curdir in
*\ *) mkshshebang="#!./$mkshexe" ;;
*) mkshshebang="#!$curdir/$mkshexe" ;;
esac
cat >test.sh <<-EOF
$mkshshebang
LC_ALL=C PATH='$PATH'; export LC_ALL PATH
test -n "\$KSH_VERSION" || exit 1
set -A check_categories -- $check_categories
pflag='$curdir/$mkshexe'
sflag='$srcdir/check.t'
usee=0 useU=0 Pflag=0 Sflag=0 uset=0 vflag=1 xflag=0
while getopts "C:e:fPp:QSs:t:U:v" ch; do case \$ch {
(C) check_categories[\${#check_categories[*]}]=\$OPTARG ;;
(e) usee=1; eflag=\$OPTARG ;;
(f) check_categories[\${#check_categories[*]}]=fastbox ;;
(P) Pflag=1 ;;
(+P) Pflag=0 ;;
(p) pflag=\$OPTARG ;;
(Q) vflag=0 ;;
(+Q) vflag=1 ;;
(S) Sflag=1 ;;
(+S) Sflag=0 ;;
(s) sflag=\$OPTARG ;;
(t) uset=1; tflag=\$OPTARG ;;
(U) useU=1; Uflag=\$OPTARG ;;
(v) vflag=1 ;;
(+v) vflag=0 ;;
(*) xflag=1 ;;
}
done
shift \$((OPTIND - 1))
set -A args -- '$srcdir/check.pl' -p "\$pflag"
if $ebcdic; then
args[\${#args[*]}]=-E
fi
x=
for y in "\${check_categories[@]}"; do
x=\$x,\$y
done
if [[ -n \$x ]]; then
args[\${#args[*]}]=-C
args[\${#args[*]}]=\${x#,}
fi
if (( usee )); then
args[\${#args[*]}]=-e
args[\${#args[*]}]=\$eflag
fi
(( Pflag )) && args[\${#args[*]}]=-P
if (( uset )); then
args[\${#args[*]}]=-t
args[\${#args[*]}]=\$tflag
fi
if (( useU )); then
args[\${#args[*]}]=-U
args[\${#args[*]}]=\$Uflag
fi
(( vflag )) && args[\${#args[*]}]=-v
(( xflag )) && args[\${#args[*]}]=-x # force usage by synerr
if [[ -n \$TMPDIR && -d \$TMPDIR/. ]]; then
args[\${#args[*]}]=-T
args[\${#args[*]}]=\$TMPDIR
fi
print Testing mksh for conformance:
grep -F -e Mir''OS: -e MIRBSD "\$sflag"
print "This shell is actually:\\n\\t\$KSH_VERSION"
print 'test.sh built for mksh $dstversion'
cstr='\$os = defined \$^O ? \$^O : "unknown";'
cstr="\$cstr"'print \$os . ", Perl version " . \$];'
for perli in \$PERL perl5 perl no; do
if [[ \$perli = no ]]; then
print Cannot find a working Perl interpreter, aborting.
exit 1
fi
print "Trying Perl interpreter '\$perli'..."
perlos=\$(\$perli -e "\$cstr")
rv=\$?
print "Errorlevel \$rv, running on '\$perlos'"
if (( rv )); then
print "=> not using"
continue
fi
if [[ -n \$perlos ]]; then
print "=> using it"
break
fi
done
(( Sflag )) || echo + \$perli "\${args[@]}" -s "\$sflag" "\$@"
(( Sflag )) || exec \$perli "\${args[@]}" -s "\$sflag" "\$@"$tsts
# use of the -S option for check.t split into multiple chunks
rv=0
for s in "\$sflag".*; do
echo + \$perli "\${args[@]}" -s "\$s" "\$@"
\$perli "\${args[@]}" -s "\$s" "\$@"$tsts
rc=\$?
(( rv = rv ? rv : rc ))
done
exit \$rv
EOF
chmod 755 test.sh
case $cm in
dragonegg)
emitbc="-S -flto"
;;
llvm)
emitbc="-emit-llvm -c"
;;
*)
emitbc=-c
;;
esac
echo ": # work around NeXTstep bug" >Rebuild.sh
cd "$srcdir"
optfiles=`echo *.opt`
cd "$curdir"
for file in $optfiles; do
echo "echo + Running genopt on '$file'..."
echo "(srcfile='$srcdir/$file'; BUILDSH_RUN_GENOPT=1; . '$srcdir/Build.sh')"
done >>Rebuild.sh
echo set -x >>Rebuild.sh
for file in $SRCS; do
op=`echo x"$file" | sed 's/^x\(.*\)\.c$/\1./'`
test -f $file || file=$srcdir/$file
files="$files$sp$file"
sp=' '
echo "$CC $CFLAGS $CPPFLAGS $emitbc $file || exit 1" >>Rebuild.sh
if test $cm = dragonegg; then
echo "mv ${op}s ${op}ll" >>Rebuild.sh
echo "llvm-as ${op}ll || exit 1" >>Rebuild.sh
objs="$objs$sp${op}bc"
else
objs="$objs$sp${op}o"
fi
done
case $cm in
dragonegg|llvm)
echo "rm -f $tfn.s" >>Rebuild.sh
echo "llvm-link -o - $objs | opt $optflags | llc -o $tfn.s" >>Rebuild.sh
lobjs=$tfn.s
;;
*)
lobjs=$objs
;;
esac
echo tcfn=$mkshexe >>Rebuild.sh
echo "$CC $CFLAGS $LDFLAGS -o \$tcfn $lobjs $LIBS $ccpr" >>Rebuild.sh
echo "test -f \$tcfn || exit 1; $SIZE \$tcfn" >>Rebuild.sh
if test $cm = makefile; then
extras='emacsfn.h exprtok.h rlimits.opt sh.h sh_flags.opt var_spec.h'
test 0 = $HAVE_SYS_SIGNAME && extras="$extras signames.inc"
gens= genq=
for file in $optfiles; do
genf=`basename "$file" | sed 's/.opt$/.gen/'`
gens="$gens $genf"
genq="$genq$nl$genf: $srcdir/Build.sh $srcdir/$file
srcfile=$srcdir/$file; BUILDSH_RUN_GENOPT=1; . $srcdir/Build.sh"
done
cat >Makefrag.inc <<EOF
# Makefile fragment for building mksh $dstversion
PROG= $mkshexe
MAN= mksh.1
SRCS= $SRCS
SRCS_FP= $files
OBJS_BP= $objs
INDSRCS= $extras
NONSRCS_INST= dot.mkshrc \$(MAN)
NONSRCS_NOINST= Build.sh Makefile Rebuild.sh check.pl check.t test.sh
CC= $CC
CFLAGS= $CFLAGS
CPPFLAGS= $CPPFLAGS
LDFLAGS= $LDFLAGS
LIBS= $LIBS
.depend \$(OBJS_BP):$gens$genq
# not BSD make only:
#VPATH= $srcdir
#all: \$(PROG)
#\$(PROG): \$(OBJS_BP)
# \$(CC) \$(CFLAGS) \$(LDFLAGS) -o \$@ \$(OBJS_BP) \$(LIBS)
#\$(OBJS_BP): \$(SRCS_FP) \$(NONSRCS)
#.c.o:
# \$(CC) \$(CFLAGS) \$(CPPFLAGS) -c \$<
# for all make variants:
#REGRESS_FLAGS= -f
#regress:
# ./test.sh \$(REGRESS_FLAGS)
check_categories=$check_categories
# for BSD make only:
#.PATH: $srcdir
#.include <bsd.prog.mk>
EOF
$e
$e Generated Makefrag.inc successfully.
exit 0
fi
for file in $optfiles; do
$e "+ Running genopt on '$file'..."
do_genopt "$srcdir/$file" || exit 1
done
if test $cm = combine; then
objs="-o $mkshexe"
for file in $SRCS; do
test -f $file || file=$srcdir/$file
objs="$objs $file"
done
emitbc="-fwhole-program --combine"
v "$CC $CFLAGS $CPPFLAGS $LDFLAGS $emitbc $objs $LIBS $ccpr"
elif test 1 = $pm; then
for file in $SRCS; do
test -f $file || file=$srcdir/$file
v "$CC $CFLAGS $CPPFLAGS $emitbc $file" &
done
wait
else
for file in $SRCS; do
test $cm = dragonegg && \
op=`echo x"$file" | sed 's/^x\(.*\)\.c$/\1./'`
test -f $file || file=$srcdir/$file
v "$CC $CFLAGS $CPPFLAGS $emitbc $file" || exit 1
if test $cm = dragonegg; then
v "mv ${op}s ${op}ll"
v "llvm-as ${op}ll" || exit 1
fi
done
fi
case $cm in
dragonegg|llvm)
rmf $tfn.s
v "llvm-link -o - $objs | opt $optflags | llc -o $tfn.s"
;;
esac
tcfn=$mkshexe
test $cm = combine || v "$CC $CFLAGS $LDFLAGS -o $tcfn $lobjs $LIBS $ccpr"
test -f $tcfn || exit 1
test 1 = $r || v "$NROFF -mdoc <'$srcdir/lksh.1' >lksh.cat1" || rmf lksh.cat1
test 1 = $r || v "$NROFF -mdoc <'$srcdir/mksh.1' >mksh.cat1" || rmf mksh.cat1
test 0 = $eq && v $SIZE $tcfn
i=install
test -f /usr/ucb/$i && i=/usr/ucb/$i
test 1 = $eq && e=:
$e
$e Installing the shell:
$e "# $i -c -s -o root -g bin -m 555 $tfn /bin/$tfn"
if test $legacy = 0; then
$e "# grep -x /bin/$tfn /etc/shells >/dev/null || echo /bin/$tfn >>/etc/shells"
$e "# $i -c -o root -g bin -m 444 dot.mkshrc /usr/share/doc/mksh/examples/"
fi
$e
$e Installing the manual:
if test -f mksh.cat1; then
$e "# $i -c -o root -g bin -m 444 lksh.cat1" \
"/usr/share/man/cat1/lksh.0"
$e "# $i -c -o root -g bin -m 444 mksh.cat1" \
"/usr/share/man/cat1/mksh.0"
$e or
fi
$e "# $i -c -o root -g bin -m 444 lksh.1 mksh.1 /usr/share/man/man1/"
$e
$e Run the regression test suite: ./test.sh
$e Please also read the sample file dot.mkshrc and the fine manual.
exit 0
: <<'EOD'
=== Environment used ===
==== build environment ====
AWK default: awk
CC default: cc
CFLAGS if empty, defaults to -xO2 or +O2
or -O3 -qstrict or -O2, per compiler
CPPFLAGS default empty
LDFLAGS default empty; added before sources
LDSTATIC set this to '-static'; default unset
LIBS default empty; added after sources
[Interix] default: -lcrypt (XXX still needed?)
NOWARN -Wno-error or similar
NROFF default: nroff
TARGET_OS default: $(uname -s || uname)
TARGET_OSREV [QNX] default: $(uname -r)
==== feature selectors ====
USE_PRINTF_BUILTIN 1 to include (unsupported) printf(1) as builtin
===== general format =====
HAVE_STRLEN ac_test
HAVE_STRING_H ac_header
HAVE_CAN_FSTACKPROTECTORALL ac_flags
==== cpp definitions ====
DEBUG dont use in production, wants gcc, implies:
DEBUG_LEAKS enable freeing resources before exiting
MKSHRC_PATH "~/.mkshrc" (do not change)
MKSH_A4PB force use of arc4random_pushb
MKSH_ASSUME_UTF8 (0=disabled, 1=enabled; default: unset)
MKSH_BINSHPOSIX if */sh or */-sh, enable set -o posix
MKSH_BINSHREDUCED if */sh or */-sh, enable set -o sh
MKSH_CLS_STRING KSH_ESC_STRING "[;H" KSH_ESC_STRING "[J"
MKSH_DEFAULT_EXECSHELL "/bin/sh" (do not change)
MKSH_DEFAULT_PROFILEDIR "/etc" (do not change)
MKSH_DEFAULT_TMPDIR "/tmp" (do not change)
MKSH_DISABLE_DEPRECATED disable code paths scheduled for later removal
MKSH_DISABLE_EXPERIMENTAL disable code not yet comfy for (LTS) snapshots
MKSH_DISABLE_TTY_WARNING shut up warning about ctty if OS cant be fixed
MKSH_DONT_EMIT_IDSTRING omit RCS IDs from binary
MKSH_EARLY_LOCALE_TRACKING track utf8-mode from POSIX locale, for SuSE
MKSH_MIDNIGHTBSD01ASH_COMPAT set -o sh: additional compatibility quirk
MKSH_NOPROSPECTOFWORK disable jobs, co-processes, etc. (do not use)
MKSH_NOPWNAM skip PAM calls, for -static on glibc or Solaris
MKSH_NO_CMDLINE_EDITING disable command line editing code entirely
MKSH_NO_DEPRECATED_WARNING omit warning when deprecated stuff is run
MKSH_NO_LIMITS omit ulimit code
MKSH_NO_SIGSETJMP define if sigsetjmp is broken or not available
MKSH_NO_SIGSUSPEND use sigprocmask+pause instead of sigsuspend
MKSH_SMALL omit some code, optimise hard for size (slower)
MKSH_SMALL_BUT_FAST disable some hard-for-size optim. (modern sys.)
MKSH_S_NOVI=1 disable Vi editing mode (default if MKSH_SMALL)
MKSH_TYPEDEF_SIG_ATOMIC_T define to e.g. 'int' if sig_atomic_t is missing
MKSH_TYPEDEF_SSIZE_T define to e.g. 'long' if your OS has no ssize_t
MKSH_UNEMPLOYED disable job control (but not jobs/co-processes)
=== generic installation instructions ===
Set CC and possibly CFLAGS, CPPFLAGS, LDFLAGS, LIBS. If cross-compiling,
also set TARGET_OS. To disable tests, set e.g. HAVE_STRLCPY=0; to enable
them, set to a value other than 0 or 1. Ensure /bin/ed is installed. For
MKSH_SMALL but with Vi mode, add -DMKSH_S_NOVI=0 to CPPFLAGS as well.
Normally, the following command is what you want to run, then:
$ (sh Build.sh -r -c lto && ./test.sh -f) 2>&1 | tee log
Copy dot.mkshrc to /etc/skel/.mkshrc; install mksh into $prefix/bin; or
/bin; install the manpage, if omitting the -r flag a catmanpage is made
using $NROFF. Consider using a forward script as /etc/skel/.mkshrc like
http://anonscm.debian.org/cgit/collab-maint/mksh.git/plain/debian/.mkshrc
and put dot.mkshrc as /etc/mkshrc so users need not keep up their HOME.
You may also want to install the lksh binary (also as /bin/sh) built by:
$ CPPFLAGS="$CPPFLAGS -DMKSH_BINSHPOSIX" sh Build.sh -L -r -c lto
EOD