mksh/Build.sh

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#!/bin/sh
# $MirOS: src/bin/mksh/Build.sh,v 1.102 2007/01/12 02:12:16 tg Exp $
#-
# Environment: CC, CFLAGS, CPPFLAGS, LDFLAGS, LIBS, NOWARN, NROFF
# With -x: SRCS (extra), TARGET_OS (uname -s)
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v()
{
$e "$*"
eval "$@"
}
vq()
{
eval "$@"
}
if test -t 1; then
bi=`printf '\033[1m'`
ui=`printf '\033[4m'`
ao=`printf '\033[0m'`
else
bi=
ui=
ao=
fi
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upper()
{
echo "$@" | tr qwertyuiopasdfghjklzxcvbnm QWERTYUIOPASDFGHJKLZXCVBNM
}
# pipe .c | ac_test[n] label [!] checkif[!]0 [setlabelifcheckis[!]0] useroutput
ac_testn()
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{
f=$1
fu=`upper $f`
fc=0
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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
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fi
fd=$3
test x"$fd" = x"" && fd=$f
eval fv=\$HAVE_$fu
if test 0 = "$fv"; then
$e "$bi==> $fd...$ao ${ui}no$ao (cached)"
return
fi
if test 1 = "$fv"; then
$e "$bi==> $fd...$ao ${ui}yes$ao (cached)"
return
fi
if test $fc = "$ft"; then
fv=$2
eval HAVE_$fu=$fv
test 0 = "$fv" && fv=no
test 1 = "$fv" && fv=yes
$e "$bi==> $fd...$ao $ui$fv$ao (implied)"
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return
fi
$e ... $fd
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cat >scn.c
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v "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -I'$srcdir' scn.c $LIBS" \
2>&$h | sed 's/^/] /'
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if test -f a.out || test -f a.exe; then
eval HAVE_$fu=1
$e "$bi==> $fd...$ao ${ui}yes$ao"
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else
eval HAVE_$fu=0
$e "$bi==> $fd...$ao ${ui}no$ao"
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fi
rm -f scn.c a.out a.exe
}
ac_test()
{
ac_testn "$@"
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eval CPPFLAGS=\"\$CPPFLAGS -DHAVE_$fu=\$HAVE_$fu\"
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}
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addsrcs()
{
eval i=\$$1
test 0 = $i && case " $SRCS " in
*\ $2\ *) ;;
*) SRCS="$SRCS $2" ;;
esac
}
if test -d mksh; then
echo "$0: Error: ./mksh is a directory!" >&2
exit 1
fi
: ${CFLAGS='-O2 -fno-strict-aliasing -Wall'}
: ${CC=gcc} ${NROFF=nroff}
curdir=`pwd` srcdir=`dirname "$0"` check_categories=pdksh
echo | $NROFF -v 2>&1 | grep GNU >/dev/null 2>&1 && NROFF="$NROFF -c"
e=echo
h=1
r=0
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x=0
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LDSTATIC=-static
for i
do
case $i in
-d)
LDSTATIC=
;;
-q)
e=:
h=-
;;
-r)
r=1
;;
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-x)
x=1
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LDSTATIC=
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;;
*)
echo "$0: Unknown option '$i'!" >&2
exit 1
;;
esac
done
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if test $x = 0; then
SRCS=
TARGET_OS=`uname -s 2>/dev/null || uname`
fi
SRCS="$SRCS alloc.c edit.c eval.c exec.c expr.c funcs.c histrap.c"
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SRCS="$SRCS jobs.c lex.c main.c misc.c shf.c syn.c tree.c var.c"
case $TARGET_OS in
CYGWIN*)
LDSTATIC=
;;
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Darwin)
LDSTATIC=
CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=64"
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;;
Interix)
CPPFLAGS="$CPPFLAGS -D_ALL_SOURCE"
;;
Linux)
CPPFLAGS="$CPPFLAGS -D_POSIX_C_SOURCE=2 -D_BSD_SOURCE -D_GNU_SOURCE"
CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=64"
LDSTATIC=
;;
SunOS)
CPPFLAGS="$CPPFLAGS -D_BSD_SOURCE -D__EXTENSIONS__"
CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=64"
LDSTATIC=
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r=1
;;
esac
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CPPFLAGS="$CPPFLAGS -I'$curdir'"
$e ${ao}Scanning for functions... please ignore any errors.
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ac_testn compiler_works '' 'if the compiler works' <<-'EOF'
int main(void) { return (0); }
EOF
test 1 = $HAVE_COMPILER_WORKS || exit 1
test x"$NOWARN" = x"" && NOWARN=-Wno-error
ac_testn can_wnoerror '' "if '$NOWARN' can be used" <<-'EOF'
int main(void) { return (0); }
EOF
test 1 = $HAVE_CAN_WNOERROR || NOWARN=
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save_NOWARN=$NOWARN
NOWARN=-Werror
ac_testn can_werror '' "if -Werror can be used" <<-'EOF'
int main(void) { return (0); }
EOF
test 1 = $HAVE_CAN_WERROR || NOWARN=
ac_test attribute '' 'if we have __attribute__((...)) at all' <<-'EOF'
#include <stdlib.h>
void fnord(void) __attribute__((noreturn));
int main(void) { fnord(); }
void fnord(void) { exit(0); }
EOF
ac_test attribute_bounded attribute 0 'for __attribute__((bounded))' <<-'EOF'
#include <string.h>
int xcopy(const void *, void *, size_t)
__attribute__((bounded (buffer, 1, 3)))
__attribute__((bounded (buffer, 2, 3)));
int main(int ac, char *av[]) { return (xcopy(av[0], av[1], 1)); }
int xcopy(const void *s, void *d, size_t n) {
memmove(d, s, n); return (n);
}
EOF
ac_test attribute_used attribute 0 'for __attribute__((used))' <<-'EOF'
static const char fnord[] __attribute__((used)) = "42";
int main(void) { return (0); }
EOF
NOWARN=$save_NOWARN
ac_testn mksh_full '' "if we're building without MKSH_SMALL" <<-'EOF'
#ifdef MKSH_SMALL
#error OK, we are building an extra small mksh.
#else
int main(void) { return (0); }
#endif
EOF
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if test 0 = $HAVE_MKSH_FULL; then
save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -fno-inline"
ac_testn can_fnoinline '' 'if -fno-inline can be used' <<-'EOF'
int main(void) { return (0); }
EOF
test 1 = $HAVE_CAN_FNOINLINE || CFLAGS=$save_CFLAGS
HAVE_SETLOCALE_CTYPE=0
check_categories=$check_categories,smksh
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fi
save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -fwhole-program --combine"
ac_testn can_fwholepgm '' 'if -fwhole-program --combine can be used' <<-'EOF'
int main(void) { return (0); }
EOF
test 1 = $HAVE_CAN_FWHOLEPGM || CFLAGS=$save_CFLAGS
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ac_test sys_param_h '' '<sys/param.h>' <<'EOF'
#include <sys/param.h>
int main(void) { return (0); }
EOF
ac_test mksh_signame '' 'our own list of signal names' <<-'EOF'
#include <stdlib.h> /* for NULL */
#define MKSH_SIGNAMES_CHECK
#include "signames.c"
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int main(void) { return (mksh_sigpairs[0].nr); }
EOF
ac_test sys_signame '!' mksh_signame 0 'the sys_signame[] array' <<-'EOF'
extern const char *const sys_signame[];
int main(void) { return (sys_signame[0][0]); }
EOF
ac_test _sys_signame '!' sys_signame 0 'the _sys_signame[] array' <<-'EOF'
extern const char *const _sys_signame[];
int main(void) { return (_sys_signame[0][0]); }
EOF
if test 000 = $HAVE_SYS_SIGNAME$HAVE__SYS_SIGNAME$HAVE_MKSH_SIGNAME; then
NEED_MKSH_SIGNAME=1
else
NEED_MKSH_SIGNAME=0
fi
ac_test sys_siglist '' 'the sys_siglist[] array' <<-'EOF'
extern const char *const sys_siglist[];
int main(void) { return (sys_siglist[0][0]); }
EOF
ac_test _sys_siglist '!' sys_siglist 0 'the _sys_siglist[] array' <<-'EOF'
extern const char *const _sys_siglist[];
int main(void) { return (_sys_siglist[0][0]); }
EOF
ac_test strsignal '!' _sys_siglist 0 <<-'EOF'
#include <string.h>
#include <signal.h>
int main(void) { return (strsignal(1)[0]); }
EOF
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ac_test arc4random <<-'EOF'
#include <stdlib.h>
int main(void) { return (arc4random()); }
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EOF
ac_test arc4random_push arc4random 0 <<-'EOF'
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#include <stdlib.h>
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int main(void) { arc4random_push(1); return (0); }
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EOF
ac_test setlocale_ctype '' 'setlocale(LC_CTYPE, "")' <<-'EOF'
#include <locale.h>
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#include <stddef.h>
int main(void) { return ((ptrdiff_t)(void *)setlocale(LC_CTYPE, "")); }
EOF
ac_test langinfo_codeset setlocale_ctype 0 'nl_langinfo(CODESET)' <<-'EOF'
#include <langinfo.h>
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#include <stddef.h>
int main(void) { return ((ptrdiff_t)(void *)nl_langinfo(CODESET)); }
EOF
ac_test setmode mksh_full 1 <<-'EOF'
#if defined(__MSVCRT__) || defined(__CYGWIN__)
#error Win32 setmode() is different from what we need
#else
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#include <unistd.h>
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int main(int ac, char *av[]) { return (getmode(setmode(av[0]), ac)); }
#endif
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EOF
ac_test setresugid <<-'EOF'
#include <sys/types.h>
#include <unistd.h>
int main(void) { setresuid(0,0,0); return (setresgid(0,0,0)); }
EOF
ac_test setgroups setresugid 0 <<-'EOF'
#include <sys/types.h>
#include <grp.h>
#include <unistd.h>
int main(void) { gid_t gid = 0; return (setgroups(0, &gid)); }
EOF
ac_test strcasestr <<-'EOF'
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#include <stddef.h>
#include <string.h>
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int main(int ac, char *av[]) {
return ((ptrdiff_t)(void *)strcasestr(*av, av[ac]));
}
EOF
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ac_test strlcpy <<-'EOF'
#include <string.h>
int main(int ac, char *av[]) { return (strlcpy(*av, av[1], ac)); }
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EOF
if test 1 = $NEED_MKSH_SIGNAME; then
$e "... checking how to run the C Preprocessor"
rm -f x
( ( echo '#if (23 * 2 - 2) == (fnord + 2)'
echo mksh_rules: fnord
echo '#endif'
) | v "$CC -E - $CPPFLAGS -Dfnord=42 >x" ) 2>&$h | sed 's/^/] /'
if grep '^mksh_rules:.*42' x >/dev/null 2>&1; then
CPP="$CC -E -"
else
rm -f x
( ( echo '#if (23 * 2 - 2) == (fnord + 2)'
echo mksh_rules: fnord
echo '#endif'
) | v "$CPP $CPPFLAGS -Dfnord=42 >x" ) 2>&$h | sed 's/^/] /'
grep '^mksh_rules:.*42' x >/dev/null 2>&1 || CPP=no
fi
rm -f x
$e "$bi==> checking how to run the C Preprocessor...$ao $ui$CPP$ao"
test x"$CPP" = x"no" && exit 1
fi
$e ... done.
if test 1 = $NEED_MKSH_SIGNAME; then
$e Generating list of signal names...
sigseen=:
NSIG=`( echo '#include <signal.h>'; echo "mksh_cfg: NSIG" ) | \
vq "$CPP $CPPFLAGS" | grep mksh_cfg: | \
sed 's/^mksh_cfg: \([0-9x]*\).*$/\1/'`
NSIG=`printf %d "$NSIG" 2>/dev/null`
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test $h = 1 && printf "NSIG=$NSIG ... "
test $NSIG -gt 1 || exit 1
echo '#include <signal.h>' | vq "$CPP $CPPFLAGS -dD" | \
grep '[ ]SIG[A-Z0-9]*[ ]' | \
sed 's/^\(.*[ ]SIG\)\([A-Z0-9]*\)\([ ].*\)$/\2/' | \
while read name; do
( echo '#include <signal.h>'; echo "mksh_cfg: SIG$name" ) | \
vq "$CPP $CPPFLAGS" | grep mksh_cfg: | \
sed 's/^mksh_cfg: \([0-9x]*\).*$/\1:'$name/
done | grep -v '^:' | while IFS=: read nr name; do
nr=`printf %d "$nr" 2>/dev/null`
test $nr -gt 0 && test $nr -lt $NSIG || continue
case $sigseen in
*:$nr:*) ;;
*) echo " { $nr, \"$name\" },"
sigseen=$sigseen$nr:
test $h = 1 && printf "$nr " >&2
;;
esac
done 2>&1 >signames.inc
grep ', ' signames.inc >/dev/null 2>&1 || exit 1
$e done.
fi
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addsrcs HAVE_SETMODE setmode.c
addsrcs HAVE_STRCASESTR strcasestr.c
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addsrcs HAVE_STRLCPY strlfun.c
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CPPFLAGS="$CPPFLAGS -DHAVE_CONFIG_H -DCONFIG_H_FILENAME=\\\"sh.h\\\""
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(v "cd '$srcdir' && exec $CC $CFLAGS $CPPFLAGS" \
"$LDFLAGS $LDSTATIC -o '$curdir/mksh' $SRCS $LIBS") || exit 1
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result=mksh
test -f mksh.exe && result=mksh.exe
test -f $result || exit 1
test $r = 1 || v "$NROFF -mdoc <'$srcdir/mksh.1' >mksh.cat1" || \
rm -f mksh.cat1
test $h = 1 && v size $result
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case $curdir in
*\ *) echo "#!./mksh" >test.sh ;;
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*) echo "#!$curdir/mksh" >test.sh ;;
esac
echo "exec perl '$srcdir/check.pl' -s '$srcdir/check.t'" \
"-p '$curdir/mksh' -C $check_categories \$*" >>test.sh
chmod 755 test.sh
i=install
test -f /usr/ucb/$i && i=/usr/ucb/$i
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$e
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$e Installing the shell:
$e "# $i -c -s -o root -g bin -m 555 mksh /bin/mksh"
$e "# grep -qx /bin/mksh /etc/shells || echo /bin/mksh >>/etc/shells"
$e "# $i -c -o root -g bin -m 444 dot.mkshrc /usr/share/doc/mksh/examples/"
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$e
$e Installing the manual:
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if test -f mksh.cat1; then
$e "# $i -c -o root -g bin -m 444 mksh.cat1" \
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"/usr/share/man/cat1/mksh.0"
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$e or
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fi
$e "# $i -c -o root -g bin -m 444 mksh.1 /usr/share/man/man1/mksh.1"
$e
$e Run the regression test suite: ./test.sh
$e Please also read the sample file dot.mkshrc and the fine manual.