mirror of
git://git.code.sf.net/p/cdesktopenv/code
synced 2025-03-09 15:50:02 +00:00
9b45f2ccbe
All changed files: - Put the shell in POSIX mode if it has an '-o posix' option. - Remove nonsense disabling 'set -x' on bash. It's not broken. bin/package, src/cmd/INIT/package.sh: - Add check blocking native zsh mode (e.g., "$path" conflicts). Using a 'sh -> zsh' symlink works, so recommend that. - Remove old ksh93 version check for a supposed conflict with libcmd. It was broken; it would revert to /bin/sh, but on illumos distributions, /bin/sh is a ksh93 of a version that is supposedly affected. It builds fine anyway. - Rewrite checksh() to incorporate the shell compatibility checks that were previously in two different places in 'package'. bin/ignore, src/cmd/INIT/ignore.sh, bin/silent, src/cmd/INIT/silent.sh: - Change bad check for a full POSIX 'export' command (no, $RANDOM has nothing to do with that) with a proper feature test.
313 lines
6.7 KiB
Bash
313 lines
6.7 KiB
Bash
########################################################################
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# #
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# This software is part of the ast package #
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# Copyright (c) 1982-2012 AT&T Intellectual Property #
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# and is licensed under the #
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# Eclipse Public License, Version 1.0 #
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# by AT&T Intellectual Property #
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# #
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# A copy of the License is available at #
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# http://www.eclipse.org/org/documents/epl-v10.html #
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# (with md5 checksum b35adb5213ca9657e911e9befb180842) #
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# #
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# Information and Software Systems Research #
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# AT&T Research #
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# Florham Park NJ #
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# #
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# David Korn <dgk@research.att.com> #
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# #
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########################################################################
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: generate the ksh math builtin table
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: include math.tab
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# @(#)math.sh (AT&T Research) 2012-06-13
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case $ZSH_VERSION in
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?*) emulate ksh ;;
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*) (set -o posix) 2>/dev/null && set -o posix ;;
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esac
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command=$0
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iffeflags="-n -v"
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iffehdrs="math.h"
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iffelibs="-lm"
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table=/dev/null
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eval $1
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shift
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table=$1
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: check long double
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eval `iffe $iffeflags -c "$cc" - typ long.double 2>&$stderr`
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: check ast_standards.h
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eval `iffe $iffeflags -F ast_standards.h -c "$cc" - tst use_ast_standards -lm 'note{' 'math.h needs ast_standards.h' '}end' 'link{' '#include <math.h>' '#ifndef isgreater' '#define isgreater(a,b) 0' '#endif' 'int main() { return isgreater(0.0,1.0); }' '}end'`
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case $_use_ast_standards in
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1) iffeflags="$iffeflags -F ast_standards.h" ;;
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esac
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eval `iffe $iffeflags -c "$cc" - tst use_ieeefp -lm 'note{' 'ieeefp.h plays nice' '}end' 'link{' '#include <math.h>' '#include <ieeefp.h>' 'int main() { return 0; }' '}end'`
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case $_use_ieeefp in
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1) iffehdrs="$iffehdrs ieeefp.h" ;;
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esac
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: read the table
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exec < $table
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ifs=$IFS
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libs=
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names=
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nums=
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while read type args name aka
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do case $type in
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[fix]) names="$names $name"
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libs="$libs,$name"
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case $_typ_long_double in
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1) libs="$libs,${name}l" ;;
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esac
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for a in $aka
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do case $a in
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'{'*) break
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;;
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*=*) IFS='=|'
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set $a
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IFS=$ifs
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case ",$libs" in
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*,$1,*) ;;
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*) names="$names $1"
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libs="$libs,$1"
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case $_typ_long_double in
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1) libs="$libs,${1}l" ;;
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esac
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;;
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esac
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shift
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while :
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do case $# in
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0) break ;;
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esac
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case ",$nums" in
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*,$1,*) ;;
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*) nums="$nums,$1" ;;
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esac
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shift
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done
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;;
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esac
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done
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eval TYPE_$name='$type' ARGS_$name='$args' AKA_$name='$aka'
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;;
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esac
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done
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: check the math library
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eval `iffe $iffeflags -c "$cc" - lib $libs $iffehdrs $iffelibs 2>&$stderr`
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lib=
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for name in $names
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do eval x='$'_lib_${name}l y='$'_lib_${name}
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case $x in
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1) lib="$lib,${name}l" ;;
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esac
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case $y in
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1) case $x in
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'') lib="$lib,${name}" ;;
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esac
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;;
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esac
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done
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eval `iffe $iffeflags -c "$cc" - dat,npt,mac $lib $iffehdrs $iffelibs 2>&$stderr`
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eval `iffe $iffeflags -c "$cc" - num $nums $iffehdrs $iffelibs 2>&$stderr`
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cat <<!
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#pragma prototyped
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/* : : generated by $command from $table : : */
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typedef Sfdouble_t (*Math_f)(Sfdouble_t,...);
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!
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case $_use_ast_standards in
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1) echo "#include <ast_standards.h>" ;;
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esac
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echo "#include <math.h>"
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case $_hdr_ieeefp in
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1) echo "#include <ieeefp.h>" ;;
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esac
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echo
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: generate the intercept functions and table entries
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nl='
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'
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ht=' '
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tab=
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for name in $names
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do eval x='$'_lib_${name}l y='$'_lib_${name} r='$'TYPE_${name} a='$'ARGS_${name} aka='$'AKA_${name}
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case $r in
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i) L=int R=1 ;;
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x) L=Sfdouble_t R=4 ;;
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*) L=Sfdouble_t R=0 ;;
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esac
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F=local_$name
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case $x:$y in
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1:*) f=${name}l
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t=Sfdouble_t
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local=
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;;
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*:1) f=${name}
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t=double
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local=$_typ_long_double
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;;
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*) body=
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for k in $aka
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do case $body in
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?*) body="$body $k"
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continue
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;;
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esac
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case $k in
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'{'*) body=$k
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;;
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*=*) IFS='=|'
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set $k
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IFS=$ifs
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f=$1
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shift
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v=$*
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eval x='$'_lib_${f}l y='$'_lib_${f}
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case $x:$y in
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1:*) f=${f}l
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;;
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*:1) ;;
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*) continue
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;;
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esac
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y=
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while :
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do case $# in
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0) break ;;
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esac
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eval x='$'_num_$1
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case $x in
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1) case $y in
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?*) y="$y || " ;;
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esac
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y="${y}q == $1"
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;;
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esac
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shift
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done
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case $y in
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'') ;;
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*) r=int R=1
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echo "static $r $F(Sfdouble_t a1) { $r q = $f(a1); return $y; }"
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tab="$tab$nl$ht\"\\0${R}${a}${name}\",$ht(Math_f)${F},"
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break
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;;
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esac
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;;
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esac
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done
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case $body in
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?*) code="static $L $F("
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sep=
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ta=
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tc=
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td=
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for p in 1 2 3 4 5 6 7 8 9
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do case $R:$p in
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4:2) T=int ;;
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*) T=Sfdouble_t ;;
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esac
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code="$code${sep}$T a$p"
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ta="$ta${sep}a$p"
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tc="$tc${sep}0"
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td="${td}$T a$p;"
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case $a in
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$p) break ;;
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esac
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sep=","
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done
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_it_links_=0
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eval `iffe $iffeflags -c "$cc" - tst it_links_ note{ $F function links }end link{ "static $L $F($ta)$td${body}int main(){return $F($tc)!=0;}" }end sfio.h $iffehdrs $iffelibs 2>&$stderr`
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case $_it_links_ in
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1) code="$code)$body"
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echo "$code"
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tab="$tab$nl$ht\"\\0${R}${a}${name}\",$ht(Math_f)${F},"
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;;
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esac
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;;
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esac
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continue
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;;
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esac
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case $r in
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i) r=int ;;
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*) r=$t ;;
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esac
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eval n='$'_npt_$f m='$'_mac_$f d='$'_dat_$f
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case $d:$m:$n in
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1:*:*|*:1:*)
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;;
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*:*:1) code="extern $r $f("
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sep=
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for p in 1 2 3 4 5 6 7
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do case $p:$f in
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2:ldexp*) code="$code${sep}int" ;;
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*) code="$code${sep}$t" ;;
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esac
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case $a in
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$p) break ;;
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esac
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sep=","
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done
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code="$code);"
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echo "$code"
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;;
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esac
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case $local:$m:$n:$d in
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1:*:*:*|*:1:*:*|*:*:1:)
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args=
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code="static $L local_$f("
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sep=
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for p in 1 2 3 4 5 6 7 8 9
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do args="$args${sep}a$p"
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case $R:$p in
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4:2) T=int ;;
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*) T=Sfdouble_t ;;
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esac
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code="$code${sep}$T a$p"
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case $a in
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$p) break ;;
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esac
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sep=","
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done
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code="$code){return $f($args);}"
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echo "$code"
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f=local_$f
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;;
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esac
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for x in $name $aka
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do case $x in
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'{'*) break
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;;
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*=*) continue
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;;
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esac
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tab="$tab$nl$ht\"\\0${R}${a}${x}\",$ht(Math_f)$f,"
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done
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done
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tab="$tab$nl$ht\"\",$ht$ht(Math_f)0"
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cat <<!
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/*
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* first byte is two-digit octal number. Last digit is number of args
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* first digit is 0 if return value is double, 1 for integer
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*/
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const struct mathtab shtab_math[] =
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{$tab
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};
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!
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