[metaconfig.git] / U / modified / Cppsym.U

?RCS: $Id: Cppsym.U,v 3.0.1.5 1995/05/12 11:59:11 ram Exp $
?RCS:
?RCS: Copyright (c) 1991-1993, Raphael Manfredi
?RCS: 
?RCS: You may redistribute only under the terms of the Artistic Licence,
?RCS: as specified in the README file that comes with the distribution.
?RCS: You may reuse parts of this distribution only within the terms of
?RCS: that same Artistic Licence; a copy of which may be found at the root
?RCS: of the source tree for dist 3.0.
?RCS:
?RCS: $Log: Cppsym.U,v $
?RCS: Revision 3.0.1.5  1995/05/12  11:59:11  ram
?RCS: patch54: split awk command onto two lines for older awks (ADO)
?RCS:
?RCS: Revision 3.0.1.4  1995/01/11  14:55:57  ram
?RCS: patch45: new cc vs. cpp symbol checking suggested by JHI
?RCS: patch45: added more cpp symbols (JHI)
?RCS:
?RCS: Revision 3.0.1.3  1994/10/29  15:51:32  ram
?RCS: patch36: added ?F: line for metalint file checking
?RCS: patch36: new symbols ardent and titan (ADO)
?RCS:
?RCS: Revision 3.0.1.2  1994/06/20  06:53:32  ram
?RCS: patch30: extended cpp symbol lookup list (JHI)
?RCS: patch30: renamed attrlist symbol into al for brevity
?RCS:
?RCS: Revision 3.0.1.1  1993/12/15  08:14:14  ram
?RCS: patch15: added new cpp symbols __bsdi__ and BSD_NET2
?RCS:
?RCS: Revision 3.0  1993/08/18  12:04:50  ram
?RCS: Baseline for dist 3.0 netwide release.
?RCS:
?X: 
?X: This unit produces a shell script called Cppsym, which can be used to
?X: determine whether any in a list of symbols is defined by the C compilation
?X: chain (C preprocessor symbols plus C compiler native ones).
?X: It can determine the status of any symbol, though the symbols in $al
?X: are more easily determined.  If you want to add to $al you can do
?X: it in Myinit.U.
?X: 
?MAKE:Cppsym ccsymbols cppsymbols cppccsymbols: \
	eunicefix Guess cppstdin awk cat tr sed sort grep rm startsh osname \
	contains cppminus +cc +gccversion test comm uniq echo n c Options trnl
?MAKE:	-pick add $@ %<
?F:./Cppsym
?T:sym list unknown status also symbols i postprocess_cc_v
?V:al
?X:
?X: The symbol list is in alpha order for ease of maintenance...
?X:
?X: Lots of new symbols (mostly rummaged from gcc), courtesy of
?X: Jarkko Hietaniemi <jhi@snakemail.hut.fi> -- RAM, 06/06/94
?X:
?INIT:: list of known cpp symbols, sorted alphabetically
?INIT:al="a29k ABI64 aegis AES_SOURCE AIX AIX32 AIX370"
?INIT:al="$al AIX41 AIX42 AIX43 AIX_SOURCE aixpc ALL_SOURCE"
?INIT:al="$al alliant alpha am29000 AM29000 amiga AMIGAOS AMIX"
?INIT:al="$al ansi ANSI_C_SOURCE apollo ardent atarist att386 att3b BeOS"
?INIT:al="$al BIG_ENDIAN BIT_MSF bsd BSD bsd43 bsd4_2 bsd4_3 BSD4_3 bsd4_4"
?INIT:al="$al BSD_4_3 BSD_4_4 BSD_NET2 BSD_TIME BSD_TYPES BSDCOMPAT bsdi"
?INIT:al="$al bull c cadmus clipper CMU COFF COMPILER_VERSION"
?INIT:al="$al concurrent convex cpu cray CRAY CRAYMPP ctix CX_UX"
?INIT:al="$al CYGWIN DGUX DGUX_SOURCE DJGPP dmert DOLPHIN DPX2 DSO"
?INIT:al="$al Dynix DynixPTX ELF encore EPI EXTENSIONS FILE_OFFSET_BITS"
?INIT:al="$al FreeBSD GCC_NEW_VARARGS gcos gcx gimpel"
?INIT:al="$al GNU_SOURCE GNUC GNUC_MINOR GO32 gould GOULD_PN"
?INIT:al="$al H3050R H3050RX hbullx20 hcx host_mips"
?INIT:al="$al hp200 hp300 hp700 HP700 hp800 hp9000"
?INIT:al="$al hp9000s200 hp9000s300 hp9000s400 hp9000s500"
?INIT:al="$al hp9000s700 hp9000s800 hp9k8 hp_osf hppa hpux HPUX_SOURCE"
?INIT:al="$al i186 i286 i386 i486 i586 i686 i8086 i80960 i860 I960"
?INIT:al="$al iAPX286 ibm ibm032 ibmesa IBMR2 ibmrt ILP32 ILP64"
?INIT:al="$al INLINE_INTRINSICS INTRINSICS INT64 interdata is68k ksr1"
?INIT:al="$al LANGUAGE_C LARGE_FILE_API LARGEFILE64_SOURCE"
?INIT:al="$al LARGEFILE_SOURCE LFS64_LARGEFILE LFS_LARGEFILE"
?INIT:al="$al Linux LITTLE_ENDIAN LONG64 LONG_DOUBLE LONG_LONG"
?INIT:al="$al LONGDOUBLE LONGLONG LP64 luna luna88k Lynx"
?INIT:al="$al M68000 m68k m88100 m88k M88KBCS_TARGET M_COFF"
?INIT:al="$al M_I186 M_I286 M_I386 M_I8086 M_I86 M_I86SM M_SYS3"
?INIT:al="$al M_SYS5 M_SYSIII M_SYSV M_UNIX M_XENIX MACH machine MachTen"
?INIT:al="$al MATH_HAS_NO_SIDE_EFFECTS"
?INIT:al="$al mc300 mc500 mc68000 mc68010 mc68020 mc68030 mc68040"
?INIT:al="$al mc68060 mc68k mc68k32 mc700 mc88000 mc88100 merlin"
?INIT:al="$al mert MiNT mips MIPS_FPSET MIPS_ISA MIPS_SIM MIPS_SZINT"
?INIT:al="$al MIPS_SZLONG MIPS_SZPTR MIPSEB MIPSEL MODERN_C motorola"
?INIT:al="$al mpeix MSDOS MTXINU MULTIMAX mvs MVS n16 ncl_el ncl_mr"
?INIT:al="$al NetBSD news1500 news1700 news1800 news1900 news3700"
?INIT:al="$al news700 news800 news900 NeXT NLS ns16000 ns32000"
?INIT:al="$al ns32016 ns32332 ns32k nsc32000"
?INIT:al="$al OCS88 OEMVS OpenBSD os OS2 OS390 osf OSF1 OSF_SOURCE"
?INIT:al="$al pa_risc PA_RISC1_1 PA_RISC2_0 PARAGON parisc"
?INIT:al="$al pc532 pdp11 PGC PIC plexus PORTAR posix"
?INIT:al="$al POSIX1B_SOURCE POSIX2_SOURCE POSIX4_SOURCE"
?INIT:al="$al POSIX_C_SOURCE POSIX_SOURCE POWER"
?INIT:al="$al PROTOTYPES PWB pyr QNX R3000 REENTRANT RES Rhapsody RISC6000"
?INIT:al="$al riscix riscos RT scs SCO sequent sgi SGI_SOURCE sinix"
?INIT:al="$al SIZE_INT SIZE_LONG SIZE_PTR SOCKET_SOURCE SOCKETS_SOURCE"
?INIT:al="$al sony sony_news sonyrisc sparc sparclite spectrum"
?INIT:al="$al stardent stdc STDC_EXT stratos sun sun3 sun386"
?INIT:al="$al Sun386i svr3 svr4 SVR4_2 SVR4_SOURCE svr5"
?INIT:al="$al SX system SYSTYPE_BSD SYSTYPE_BSD43 SYSTYPE_BSD44"
?INIT:al="$al SYSTYPE_SVR4 SYSTYPE_SVR5 SYSTYPE_SYSV SYSV SYSV3 SYSV4 SYSV5"
?INIT:al="$al sysV68 sysV88 Tek4132 Tek4300 titan"
?INIT:al="$al tower tower32 tower32_200 tower32_600 tower32_700"
?INIT:al="$al tower32_800 tower32_850 tss"
?INIT:al="$al u370 u3b u3b2 u3b20 u3b200 u3b20d u3b5"
?INIT:al="$al ultrix UMAXV UnicomPBB UnicomPBD UNICOS UNICOSMK"
?INIT:al="$al unix UNIX95 UNIX99 unixpc unos USGr4 USGr4_2"
?INIT:al="$al Utek UTek UTS UWIN uxpm uxps vax venix VMESA vms xenix Xenix286"
?INIT:al="$al XOPEN_SOURCE XOPEN_SOURCE_EXTENDED XPG2 XPG2_EXTENDED"
?INIT:al="$al XPG3 XPG3_EXTENDED XPG4 XPG4_EXTENDED"
?INIT:al="$al z8000"
?INIT:
?S:ccsymbols:
?S:	The variable contains the symbols defined by the C compiler alone.
?S:	The symbols defined by cpp or by cc when it calls cpp are not in
?S:	this list, see cppsymbols and cppccsymbols.
?S:	The list is a space-separated list of symbol=value tokens.
?S:.
?S:cppsymbols:
?S:	The variable contains the symbols defined by the C preprocessor
?S:	alone.  The symbols defined by cc or by cc when it calls cpp are
?S:	not in this list, see ccsymbols and cppccsymbols.
?S:	The list is a space-separated list of symbol=value tokens.
?S:.
?S:cppccsymbols:
?S:	The variable contains the symbols defined by the C compiler
?S:	when it calls cpp.  The symbols defined by the cc alone or cpp
?S:	alone are not in this list, see ccsymbols and cppsymbols.
?S:	The list is a space-separated list of symbol=value tokens.
?S:.
?F:!Cppsym.true
?F:!ccsym.com
?F:!ccsym.cpp
?F:!ccsym.own
?T:startsym
?T:stopsym
?T:symbols
: get C preprocessor symbols handy
echo " "
$echo "Guessing which symbols your C compiler and preprocessor define..." >&4 
?X: The following used to be tr '[ - ]' ... but this was rejected by AIX 3.2
?X: since the endpoints where the same (from patch 12u8 to patch).
echo $al $osname | $tr ' ' $trnl >Cppsym.know
./tr '[a-z]' '[A-Z]' < Cppsym.know > Cppsym.a
./tr '[A-Z]' '[a-z]' < Cppsym.know > Cppsym.b
cat Cppsym.a Cppsym.b >> Cppsym.know
$sed 's/^/_/'           < Cppsym.know > Cppsym.a
$sed 's/^/__/'          < Cppsym.know > Cppsym.b
$sed 's/\(.*\)/__\1__/' < Cppsym.know > Cppsym.c
$cat Cppsym.know Cppsym.a Cppsym.b Cppsym.c | sort | uniq > Cppsym.d
mv Cppsym.d Cppsym.know
rm Cppsym.?
$cat <<EOSS >Cppsym
$startsh
case "\$1" in
-l) list=true
	shift
	;;
esac
unknown=''
case "\$list\$#" in
1|2)
	for sym do
		if $contains "^\$1$" Cppsym.true >/dev/null 2>&1; then
			exit 0
		elif $contains "^\$1$" Cppsym.know >/dev/null 2>&1; then
			:
		else
			unknown="\$unknown \$sym"
		fi
	done
	set X \$unknown
	shift
	;;
esac
case \$# in
0) exit 1;;
esac
echo \$* | $tr ' ' '$trnl' | $sed -e 's/\(.*\)/\\
#ifdef \1\\
exit 0; _ _ _ _\1\\	 \1\\
#endif\\
/' >Cppsym\$\$
echo "exit 1; _ _ _" >>Cppsym\$\$
$cppstdin $cppminus <Cppsym\$\$ | $grep '^exit [01]; _ _'  >Cppsym2\$\$
case "\$list" in
true) $awk 'NF > 5 {print substr(\$6,2,100)}' <Cppsym2\$\$ ;;
*)
	sh Cppsym2\$\$
	status=\$?
	;;
esac
$rm -f Cppsym\$\$ Cppsym2\$\$
exit \$status
EOSS
chmod +x Cppsym
$eunicefix Cppsym
$rm -f Cppsym.true
startsym=1
stopsym=500
symbols=`wc -l < Cppsym.know`
while test $startsym -le $symbols
do
    $sed -n "$startsym,$stopsym p" Cppsym.know > Cppsym.batch
    ./Cppsym -l `cat Cppsym.batch` | $sort | $grep -v '^$' >>Cppsym.true
    startsym=`expr $startsym + 500`
    stopsym=`expr $stopsym + 500`
done
$rm -f Cppsym.batch

: now check the C compiler for additional symbols
?X: suggested by Jarkko Hietaniemi <jhi@snakemail.hut.fi>, thanks!
postprocess_cc_v=''
case "$osname" in
aix) postprocess_cc_v="|$tr , ' '" ;;
esac
$cat >ccsym <<EOS
$startsh
$cat >tmp.c <<EOF
extern int foo;
EOF
for i in \`$cc -v -c tmp.c 2>&1 $postprocess_cc_v\`
do
	case "\$i" in
	-D*) echo "\$i" | $sed 's/^-D//';;
	-A*) $test "$gccversion" && echo "\$i" | $sed 's/^-A\(.*\)(\(.*\))/\1=\2/';;
	esac
done
$rm -f try.c
EOS
postprocess_cc_v=''
chmod +x ccsym
$eunicefix ccsym
./ccsym > ccsym1.raw
?X: AIX complains if $uniq is passed an empty file.  ($sort apparently
?X: doesn't care.)  --AD  14 July 1998
if $test -s ccsym1.raw; then
       $sort ccsym1.raw | $uniq >ccsym.raw
else
       mv ccsym1.raw ccsym.raw
fi

?X: canonicalize symbols for easier sort/uniq/comm usage: append =1 if no = sign
?X: the awk script must be on two lines for older awk programs, sigh! -- ADO
$awk '/\=/ { print $0; next }
	{ print $0"=1" }' ccsym.raw >ccsym.list
$awk '{ print $0"=1" }' Cppsym.true >ccsym.true
$comm -13 ccsym.true ccsym.list >ccsym.own
$comm -12 ccsym.true ccsym.list >ccsym.com
$comm -23 ccsym.true ccsym.list >ccsym.cpp
also=''
if $test -z ccsym.raw; then
	echo "Your C compiler doesn't seem to define any symbols!" >&4
	echo " "
	echo "However, your C preprocessor defines the following symbols:"
	$cat Cppsym.true
    	ccsymbols=''
	cppsymbols=`$cat Cppsym.true`
        cppsymbols=`echo $cppsymbols`
	cppccsymbols="$cppsymbols"
else
	if $test -s ccsym.com; then
		echo "Your C compiler and pre-processor define these symbols:"
		$sed -e 's/\(.*\)=.*/\1/' ccsym.com
		also='also '
		symbols='ones'
		cppccsymbols=`$cat ccsym.com`
		cppccsymbols=`echo $cppccsymbols`
		$test "$silent" || sleep 1
	fi
	if $test -s ccsym.cpp; then
		$test "$also" && echo " "
		echo "Your C pre-processor ${also}defines the following symbols:"
		$sed -e 's/\(.*\)=.*/\1/' ccsym.cpp
		also='further '
		cppsymbols=`$cat ccsym.cpp`
		cppsymbols=`echo $cppsymbols`
		$test "$silent" || sleep 1
	fi
	if $test -s ccsym.own; then
		$test "$also" && echo " "
		echo "Your C compiler ${also}defines the following cpp symbols:"
		$sed -e 's/\(.*\)=1/\1/' ccsym.own
		$sed -e 's/\(.*\)=.*/\1/' ccsym.own | $uniq >>Cppsym.true
	        ccsymbols=`$cat ccsym.own`
	        ccsymbols=`echo $ccsymbols`
		$test "$silent" || sleep 1
	fi
fi
$rm -f ccsym*
Commit	Line	Data
959f3c4c JH	1	?RCS: $Id: Cppsym.U,v 3.0.1.5 1995/05/12 11:59:11 ram Exp $
	2	?RCS:
	3	?RCS: Copyright (c) 1991-1993, Raphael Manfredi
	4	?RCS:
	5	?RCS: You may redistribute only under the terms of the Artistic Licence,
	6	?RCS: as specified in the README file that comes with the distribution.
	7	?RCS: You may reuse parts of this distribution only within the terms of
	8	?RCS: that same Artistic Licence; a copy of which may be found at the root
	9	?RCS: of the source tree for dist 3.0.
	10	?RCS:
	11	?RCS: $Log: Cppsym.U,v $
	12	?RCS: Revision 3.0.1.5 1995/05/12 11:59:11 ram
	13	?RCS: patch54: split awk command onto two lines for older awks (ADO)
	14	?RCS:
	15	?RCS: Revision 3.0.1.4 1995/01/11 14:55:57 ram
	16	?RCS: patch45: new cc vs. cpp symbol checking suggested by JHI
	17	?RCS: patch45: added more cpp symbols (JHI)
	18	?RCS:
	19	?RCS: Revision 3.0.1.3 1994/10/29 15:51:32 ram
	20	?RCS: patch36: added ?F: line for metalint file checking
	21	?RCS: patch36: new symbols ardent and titan (ADO)
	22	?RCS:
	23	?RCS: Revision 3.0.1.2 1994/06/20 06:53:32 ram
	24	?RCS: patch30: extended cpp symbol lookup list (JHI)
	25	?RCS: patch30: renamed attrlist symbol into al for brevity
	26	?RCS:
	27	?RCS: Revision 3.0.1.1 1993/12/15 08:14:14 ram
	28	?RCS: patch15: added new cpp symbols __bsdi__ and BSD_NET2
	29	?RCS:
	30	?RCS: Revision 3.0 1993/08/18 12:04:50 ram
	31	?RCS: Baseline for dist 3.0 netwide release.
	32	?RCS:
	33	?X:
	34	?X: This unit produces a shell script called Cppsym, which can be used to
	35	?X: determine whether any in a list of symbols is defined by the C compilation
	36	?X: chain (C preprocessor symbols plus C compiler native ones).
	37	?X: It can determine the status of any symbol, though the symbols in $al
	38	?X: are more easily determined. If you want to add to $al you can do
	39	?X: it in Myinit.U.
	40	?X:
	41	?MAKE:Cppsym ccsymbols cppsymbols cppccsymbols: \
	42	eunicefix Guess cppstdin awk cat tr sed sort grep rm startsh osname \
	43	contains cppminus +cc +gccversion test comm uniq echo n c Options trnl
	44	?MAKE: -pick add $@ %<
	45	?F:./Cppsym
	46	?T:sym list unknown status also symbols i postprocess_cc_v
	47	?V:al
	48	?X:
	49	?X: The symbol list is in alpha order for ease of maintenance...
	50	?X:
	51	?X: Lots of new symbols (mostly rummaged from gcc), courtesy of
	52	?X: Jarkko Hietaniemi <jhi@snakemail.hut.fi> -- RAM, 06/06/94
	53	?X:
	54	?INIT:: list of known cpp symbols, sorted alphabetically
b163fa82	55	?INIT:al="a29k ABI64 aegis AES_SOURCE AIX AIX32 AIX370"
8a77dbe2 JH	56	?INIT:al="$al AIX41 AIX42 AIX43 AIX_SOURCE aixpc ALL_SOURCE"
	57	?INIT:al="$al alliant alpha am29000 AM29000 amiga AMIGAOS AMIX"
	58	?INIT:al="$al ansi ANSI_C_SOURCE apollo ardent atarist att386 att3b BeOS"
	59	?INIT:al="$al BIG_ENDIAN BIT_MSF bsd BSD bsd43 bsd4_2 bsd4_3 BSD4_3 bsd4_4"
	60	?INIT:al="$al BSD_4_3 BSD_4_4 BSD_NET2 BSD_TIME BSD_TYPES BSDCOMPAT bsdi"
	61	?INIT:al="$al bull c cadmus clipper CMU COFF COMPILER_VERSION"
	62	?INIT:al="$al concurrent convex cpu cray CRAY CRAYMPP ctix CX_UX"
	63	?INIT:al="$al CYGWIN DGUX DGUX_SOURCE DJGPP dmert DOLPHIN DPX2 DSO"
	64	?INIT:al="$al Dynix DynixPTX ELF encore EPI EXTENSIONS FILE_OFFSET_BITS"
	65	?INIT:al="$al FreeBSD GCC_NEW_VARARGS gcos gcx gimpel"
	66	?INIT:al="$al GNU_SOURCE GNUC GNUC_MINOR GO32 gould GOULD_PN"
	67	?INIT:al="$al H3050R H3050RX hbullx20 hcx host_mips"
	68	?INIT:al="$al hp200 hp300 hp700 HP700 hp800 hp9000"
	69	?INIT:al="$al hp9000s200 hp9000s300 hp9000s400 hp9000s500"
	70	?INIT:al="$al hp9000s700 hp9000s800 hp9k8 hp_osf hppa hpux HPUX_SOURCE"
	71	?INIT:al="$al i186 i286 i386 i486 i586 i686 i8086 i80960 i860 I960"
	72	?INIT:al="$al iAPX286 ibm ibm032 ibmesa IBMR2 ibmrt ILP32 ILP64"
	73	?INIT:al="$al INLINE_INTRINSICS INTRINSICS INT64 interdata is68k ksr1"
	74	?INIT:al="$al LANGUAGE_C LARGE_FILE_API LARGEFILE64_SOURCE"
	75	?INIT:al="$al LARGEFILE_SOURCE LFS64_LARGEFILE LFS_LARGEFILE"
	76	?INIT:al="$al Linux LITTLE_ENDIAN LONG64 LONG_DOUBLE LONG_LONG"
	77	?INIT:al="$al LONGDOUBLE LONGLONG LP64 luna luna88k Lynx"
	78	?INIT:al="$al M68000 m68k m88100 m88k M88KBCS_TARGET M_COFF"
	79	?INIT:al="$al M_I186 M_I286 M_I386 M_I8086 M_I86 M_I86SM M_SYS3"
	80	?INIT:al="$al M_SYS5 M_SYSIII M_SYSV M_UNIX M_XENIX MACH machine MachTen"
	81	?INIT:al="$al MATH_HAS_NO_SIDE_EFFECTS"
	82	?INIT:al="$al mc300 mc500 mc68000 mc68010 mc68020 mc68030 mc68040"
	83	?INIT:al="$al mc68060 mc68k mc68k32 mc700 mc88000 mc88100 merlin"
	84	?INIT:al="$al mert MiNT mips MIPS_FPSET MIPS_ISA MIPS_SIM MIPS_SZINT"
	85	?INIT:al="$al MIPS_SZLONG MIPS_SZPTR MIPSEB MIPSEL MODERN_C motorola"
	86	?INIT:al="$al mpeix MSDOS MTXINU MULTIMAX mvs MVS n16 ncl_el ncl_mr"
	87	?INIT:al="$al NetBSD news1500 news1700 news1800 news1900 news3700"
	88	?INIT:al="$al news700 news800 news900 NeXT NLS ns16000 ns32000"
	89	?INIT:al="$al ns32016 ns32332 ns32k nsc32000"
	90	?INIT:al="$al OCS88 OEMVS OpenBSD os OS2 OS390 osf OSF1 OSF_SOURCE"
	91	?INIT:al="$al pa_risc PA_RISC1_1 PA_RISC2_0 PARAGON parisc"
	92	?INIT:al="$al pc532 pdp11 PGC PIC plexus PORTAR posix"
	93	?INIT:al="$al POSIX1B_SOURCE POSIX2_SOURCE POSIX4_SOURCE"
	94	?INIT:al="$al POSIX_C_SOURCE POSIX_SOURCE POWER"
	95	?INIT:al="$al PROTOTYPES PWB pyr QNX R3000 REENTRANT RES Rhapsody RISC6000"
	96	?INIT:al="$al riscix riscos RT scs SCO sequent sgi SGI_SOURCE sinix"
	97	?INIT:al="$al SIZE_INT SIZE_LONG SIZE_PTR SOCKET_SOURCE SOCKETS_SOURCE"
	98	?INIT:al="$al sony sony_news sonyrisc sparc sparclite spectrum"
	99	?INIT:al="$al stardent stdc STDC_EXT stratos sun sun3 sun386"
	100	?INIT:al="$al Sun386i svr3 svr4 SVR4_2 SVR4_SOURCE svr5"
	101	?INIT:al="$al SX system SYSTYPE_BSD SYSTYPE_BSD43 SYSTYPE_BSD44"
	102	?INIT:al="$al SYSTYPE_SVR4 SYSTYPE_SVR5 SYSTYPE_SYSV SYSV SYSV3 SYSV4 SYSV5"
	103	?INIT:al="$al sysV68 sysV88 Tek4132 Tek4300 titan"
	104	?INIT:al="$al tower tower32 tower32_200 tower32_600 tower32_700"
	105	?INIT:al="$al tower32_800 tower32_850 tss"
	106	?INIT:al="$al u370 u3b u3b2 u3b20 u3b200 u3b20d u3b5"
	107	?INIT:al="$al ultrix UMAXV UnicomPBB UnicomPBD UNICOS UNICOSMK"
	108	?INIT:al="$al unix UNIX95 UNIX99 unixpc unos USGr4 USGr4_2"
	109	?INIT:al="$al Utek UTek UTS UWIN uxpm uxps vax venix VMESA vms xenix Xenix286"
	110	?INIT:al="$al XOPEN_SOURCE XOPEN_SOURCE_EXTENDED XPG2 XPG2_EXTENDED"
	111	?INIT:al="$al XPG3 XPG3_EXTENDED XPG4 XPG4_EXTENDED"
	112	?INIT:al="$al z8000"
959f3c4c JH	113	?INIT:
	114	?S:ccsymbols:
	115	?S: The variable contains the symbols defined by the C compiler alone.
	116	?S: The symbols defined by cpp or by cc when it calls cpp are not in
	117	?S: this list, see cppsymbols and cppccsymbols.
	118	?S: The list is a space-separated list of symbol=value tokens.
	119	?S:.
	120	?S:cppsymbols:
	121	?S: The variable contains the symbols defined by the C preprocessor
	122	?S: alone. The symbols defined by cc or by cc when it calls cpp are
	123	?S: not in this list, see ccsymbols and cppccsymbols.
	124	?S: The list is a space-separated list of symbol=value tokens.
	125	?S:.
	126	?S:cppccsymbols:
edd6115f	127	?S: The variable contains the symbols defined by the C compiler
959f3c4c JH	128	?S: when it calls cpp. The symbols defined by the cc alone or cpp
	129	?S: alone are not in this list, see ccsymbols and cppsymbols.
	130	?S: The list is a space-separated list of symbol=value tokens.
	131	?S:.
	132	?F:!Cppsym.true
	133	?F:!ccsym.com
	134	?F:!ccsym.cpp
	135	?F:!ccsym.own
b163fa82 JH	136	?T:startsym
	137	?T:stopsym
	138	?T:symbols
959f3c4c JH	139	: get C preprocessor symbols handy
959f3c4c JH	140	echo " "
ebebf7f4	141	$echo "Guessing which symbols your C compiler and preprocessor define..." >&4
959f3c4c JH	142	?X: The following used to be tr '[ - ]' ... but this was rejected by AIX 3.2
959f3c4c JH	143	?X: since the endpoints where the same (from patch 12u8 to patch).
8a77dbe2 JH	144	echo $al $osname \| $tr ' ' $trnl >Cppsym.know
	145	./tr '[a-z]' '[A-Z]' < Cppsym.know > Cppsym.a
	146	./tr '[A-Z]' '[a-z]' < Cppsym.know > Cppsym.b
	147	cat Cppsym.a Cppsym.b >> Cppsym.know
	148	$sed 's/^/_/' < Cppsym.know > Cppsym.a
	149	$sed 's/^/__/' < Cppsym.know > Cppsym.b
	150	$sed 's/\(.*\)/__\1__/' < Cppsym.know > Cppsym.c
	151	$cat Cppsym.know Cppsym.a Cppsym.b Cppsym.c \| sort \| uniq > Cppsym.d
	152	mv Cppsym.d Cppsym.know
	153	rm Cppsym.?
959f3c4c JH	154	$cat <<EOSS >Cppsym
	155	$startsh
	156	case "\$1" in
	157	-l) list=true
	158	shift
	159	;;
	160	esac
	161	unknown=''
	162	case "\$list\$#" in
	163	1\|2)
	164	for sym do
	165	if $contains "^\$1$" Cppsym.true >/dev/null 2>&1; then
	166	exit 0
	167	elif $contains "^\$1$" Cppsym.know >/dev/null 2>&1; then
	168	:
	169	else
	170	unknown="\$unknown \$sym"
	171	fi
	172	done
	173	set X \$unknown
	174	shift
	175	;;
	176	esac
	177	case \$# in
	178	0) exit 1;;
	179	esac
	180	echo \$* \| $tr ' ' '$trnl' \| $sed -e 's/\(.*\)/\\
	181	#ifdef \1\\
	182	exit 0; _ _ _ _\1\\ \1\\
	183	#endif\\
	184	/' >Cppsym\$\$
	185	echo "exit 1; _ _ _" >>Cppsym\$\$
	186	$cppstdin $cppminus <Cppsym\$\$ \| $grep '^exit [01]; _ _' >Cppsym2\$\$
	187	case "\$list" in
	188	true) $awk 'NF > 5 {print substr(\$6,2,100)}' <Cppsym2\$\$ ;;
	189	*)
	190	sh Cppsym2\$\$
	191	status=\$?
	192	;;
	193	esac
	194	$rm -f Cppsym\$\$ Cppsym2\$\$
	195	exit \$status
	196	EOSS
	197	chmod +x Cppsym
	198	$eunicefix Cppsym
b163fa82 JH	199	$rm -f Cppsym.true
	200	startsym=1
	201	stopsym=500
	202	symbols=`wc -l < Cppsym.know`
	203	while test $startsym -le $symbols
	204	do
	205	$sed -n "$startsym,$stopsym p" Cppsym.know > Cppsym.batch
	206	./Cppsym -l `cat Cppsym.batch` \| $sort \| $grep -v '^$' >>Cppsym.true
	207	startsym=`expr $startsym + 500`
	208	stopsym=`expr $stopsym + 500`
	209	done
	210	$rm -f Cppsym.batch
959f3c4c JH	211
	212	: now check the C compiler for additional symbols
	213	?X: suggested by Jarkko Hietaniemi <jhi@snakemail.hut.fi>, thanks!
	214	postprocess_cc_v=''
	215	case "$osname" in
	216	aix) postprocess_cc_v="\|$tr , ' '" ;;
	217	esac
	218	$cat >ccsym <<EOS
	219	$startsh
	220	$cat >tmp.c <<EOF
	221	extern int foo;
	222	EOF
	223	for i in \`$cc -v -c tmp.c 2>&1 $postprocess_cc_v\`
	224	do
	225	case "\$i" in
	226	-D*) echo "\$i" \| $sed 's/^-D//';;
	227	-A) $test "$gccversion" && echo "\$i" \| $sed 's/^-A\(.\)(\(.*\))/\1=\2/';;
	228	esac
	229	done
	230	$rm -f try.c
	231	EOS
	232	postprocess_cc_v=''
	233	chmod +x ccsym
	234	$eunicefix ccsym
	235	./ccsym > ccsym1.raw
	236	?X: AIX complains if $uniq is passed an empty file. ($sort apparently
	237	?X: doesn't care.) --AD 14 July 1998
	238	if $test -s ccsym1.raw; then
	239	$sort ccsym1.raw \| $uniq >ccsym.raw
	240	else
	241	mv ccsym1.raw ccsym.raw
	242	fi
	243
	244	?X: canonicalize symbols for easier sort/uniq/comm usage: append =1 if no = sign
	245	?X: the awk script must be on two lines for older awk programs, sigh! -- ADO
	246	$awk '/\=/ { print $0; next }
	247	{ print $0"=1" }' ccsym.raw >ccsym.list
	248	$awk '{ print $0"=1" }' Cppsym.true >ccsym.true
	249	$comm -13 ccsym.true ccsym.list >ccsym.own
	250	$comm -12 ccsym.true ccsym.list >ccsym.com
	251	$comm -23 ccsym.true ccsym.list >ccsym.cpp
	252	also=''
	253	if $test -z ccsym.raw; then
	254	echo "Your C compiler doesn't seem to define any symbols!" >&4
	255	echo " "
	256	echo "However, your C preprocessor defines the following symbols:"
	257	$cat Cppsym.true
	258	ccsymbols=''
	259	cppsymbols=`$cat Cppsym.true`
	260	cppsymbols=`echo $cppsymbols`
	261	cppccsymbols="$cppsymbols"
	262	else
	263	if $test -s ccsym.com; then
	264	echo "Your C compiler and pre-processor define these symbols:"
	265	$sed -e 's/\(.\)=./\1/' ccsym.com
	266	also='also '
	267	symbols='ones'
	268	cppccsymbols=`$cat ccsym.com`
	269	cppccsymbols=`echo $cppccsymbols`
	270	$test "$silent" \|\| sleep 1
	271	fi
	272	if $test -s ccsym.cpp; then
	273	$test "$also" && echo " "
	274	echo "Your C pre-processor ${also}defines the following symbols:"
275	$sed -e 's/\(.\)=./\1/' ccsym.cpp
276	also='further '
277	cppsymbols=`$cat ccsym.cpp`
278	cppsymbols=`echo $cppsymbols`
279	$test "$silent" \|\| sleep 1
280	fi
281	if $test -s ccsym.own; then
282	$test "$also" && echo " "
283	echo "Your C compiler ${also}defines the following cpp symbols:"
284	$sed -e 's/\(.*\)=1/\1/' ccsym.own
285	$sed -e 's/\(.\)=./\1/' ccsym.own \| $uniq >>Cppsym.true
286	ccsymbols=`$cat ccsym.own`
287	ccsymbols=`echo $ccsymbols`
288	$test "$silent" \|\| sleep 1
289	fi
290	fi
291	$rm -f ccsym*
292