[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 $@ %<
?F:./Cppsym
?T:sym list unknown status also symbols i postprocess_cc_v
?V:al
?X:
?X: The symbol list is in alpha order for ease of maintenance...
?X:
?X: Lots of new symbols (mostly rummaged from gcc), courtesy of
?X: Jarkko Hietaniemi <jhi@snakemail.hut.fi> -- RAM, 06/06/94
?X:
?INIT:: list of known cpp symbols, sorted alphabetically
?INIT:al="AMIX BIT_MSF BSD BSD4_3 BSD_NET2 CMU CRAY DGUX DOLPHIN DPX2"
?INIT:al="$al GO32 GOULD_PN HP700 I386 I80960 I960 Lynx M68000 M68K MACH"
?INIT:al="$al MIPSEB MIPSEL MSDOS MTXINU MULTIMAX MVS"
?INIT:al="$al M_COFF M_I186 M_I286 M_I386 M_I8086 M_I86 M_I86SM"
?INIT:al="$al M_SYS3 M_SYS5 M_SYSIII M_SYSV M_UNIX M_XENIX"
?INIT:al="$al NeXT OCS88 OSF1 PARISC PC532 PORTAR POSIX"
?INIT:al="$al PWB R3000 RES RISC6000 RT Sun386i SVR3 SVR4"
?INIT:al="$al SYSTYPE_BSD SYSTYPE_SVR4 SYSTYPE_SYSV Tek4132 Tek4300"
?INIT:al="$al UMAXV USGr4 USGr4_2 UTEK UTS UTek UnicomPBB UnicomPBD Utek"
?INIT:al="$al VMS Xenix286"
?INIT:al="$al _AIX _AIX32 _AIX370 _AIX41 _AM29000 _COFF _CRAY _CX_UX _EPI"
?INIT:al="$al _IBMESA _IBMR2 _M88K _M88KBCS_TARGET _POWER"
?INIT:al="$al _MIPSEB _MIPSEL _M_COFF _M_I86 _M_I86SM _M_SYS3"
?INIT:al="$al _M_SYS5 _M_SYSIII _M_SYSV _M_UNIX _M_XENIX _NLS _PGC_ _R3000"
?INIT:al="$al _SYSTYPE_BSD _SYSTYPE_BSD43 _SYSTYPE_SVR4"
?INIT:al="$al _SYSTYPE_SYSV _SYSV3 _U370 _UNICOS"
?INIT:al="$al __386BSD__ __BIG_ENDIAN __BIG_ENDIAN__ __BSD_4_4__"
?INIT:al="$al __DGUX__ __DPX2__ __H3050R __H3050RX"
?INIT:al="$al __LITTLE_ENDIAN __LITTLE_ENDIAN__ __MACH__"
?INIT:al="$al __MIPSEB __MIPSEB__ __MIPSEL __MIPSEL__"
?INIT:al="$al __Next__ __OSF1__ __PARAGON__ __PGC__ __PWB __STDC__"
?INIT:al="$al __SVR4_2__ __UMAXV__"
?INIT:al="$al ____386BSD____ __alpha __alpha__ __amiga"
?INIT:al="$al __bsd4_2 __bsd4_2__ __bsdi__ __convex__"
?INIT:al="$al __host_mips__"
?INIT:al="$al __hp9000s200 __hp9000s300 __hp9000s400 __hp9000s500"
?INIT:al="$al __hp9000s500 __hp9000s700 __hp9000s800"
?INIT:al="$al __hppa __hpux __hp_osf __i286 __i286__ __i386 __i386__"
?INIT:al="$al __i486 __i486__ __i860 __i860__ __ibmesa __ksr1__ __linux__"
?INIT:al="$al __m68k __m68k__ __m88100__ __m88k __m88k__"
?INIT:al="$al __mc68000 __mc68000__ __mc68020 __mc68020__"
?INIT:al="$al __mc68030 __mc68030__ __mc68040 __mc68040__"
?INIT:al="$al __mc88100 __mc88100__ __mips __mips__"
?INIT:al="$al __motorola__ __osf__ __pa_risc __sparc__ __stdc__"
?INIT:al="$al __sun __sun__ __svr3__ __svr4__ __ultrix __ultrix__"
?INIT:al="$al __unix __unix__ __uxpm__ __uxps__ __vax __vax__"
?INIT:al="$al _host_mips _mips _unix"
?INIT:al="$al a29k aegis aix aixpc alliant alpha am29000 amiga ansi ardent"
?INIT:al="$al apollo ardent att386 att3b"
?INIT:al="$al bsd bsd43 bsd4_2 bsd4_3 bsd4_4 bsdi bull"
?INIT:al="$al cadmus clipper concurrent convex cray ctix"
?INIT:al="$al dmert encore gcos gcx gimpel gould"
?INIT:al="$al hbullx20 hcx host_mips hp200 hp300 hp700 hp800"
?INIT:al="$al hp9000 hp9000s300 hp9000s400 hp9000s500"
?INIT:al="$al hp9000s700 hp9000s800 hp9k8 hppa hpux"
?INIT:al="$al i186 i286 i386 i486 i8086"
?INIT:al="$al i80960 i860 iAPX286 ibm ibm032 ibmrt interdata is68k"
?INIT:al="$al ksr1 linux luna luna88k m68k m88100 m88k"
?INIT:al="$al mc300 mc500 mc68000 mc68010 mc68020 mc68030"
?INIT:al="$al mc68040 mc68060 mc68k mc68k32 mc700"
?INIT:al="$al mc88000 mc88100 merlin mert mips mvs n16"
?INIT:al="$al ncl_el ncl_mr"
?INIT:al="$al news1500 news1700 news1800 news1900 news3700"
?INIT:al="$al news700 news800 news900 ns16000 ns32000"
?INIT:al="$al ns32016 ns32332 ns32k nsc32000 os osf"
?INIT:al="$al parisc pc532 pdp11 plexus posix pyr"
?INIT:al="$al riscix riscos scs sequent sgi sinix sony sony_news"
?INIT:al="$al sonyrisc sparc sparclite spectrum stardent stratos"
?INIT:al="$al sun sun3 sun386 svr4 sysV68 sysV88"
?INIT:al="$al titan tower tower32 tower32_200 tower32_600 tower32_700"
?INIT:al="$al tower32_800 tower32_850 tss u370 u3b u3b2 u3b20 u3b200"
?INIT:al="$al u3b20d u3b5 ultrix unix unixpc unos vax venix vms"
?INIT:al="$al xenix 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 when
?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
: get C preprocessor symbols handy
echo " "
$echo $n "Hmm... $c"
?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 | $tr ' ' $trnl >Cppsym.know
$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
./Cppsym -l $al | $sort | $grep -v '^$' >Cppsym.true

: 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 $@ %<
	45	?F:./Cppsym
	46	?T:sym list unknown status also symbols i postprocess_cc_v
	47	?V:al
	48	?X:
	49	?X: The symbol list is in alpha order for ease of maintenance...
	50	?X:
	51	?X: Lots of new symbols (mostly rummaged from gcc), courtesy of
	52	?X: Jarkko Hietaniemi <jhi@snakemail.hut.fi> -- RAM, 06/06/94
	53	?X:
	54	?INIT:: list of known cpp symbols, sorted alphabetically
	55	?INIT:al="AMIX BIT_MSF BSD BSD4_3 BSD_NET2 CMU CRAY DGUX DOLPHIN DPX2"
	56	?INIT:al="$al GO32 GOULD_PN HP700 I386 I80960 I960 Lynx M68000 M68K MACH"
	57	?INIT:al="$al MIPSEB MIPSEL MSDOS MTXINU MULTIMAX MVS"
	58	?INIT:al="$al M_COFF M_I186 M_I286 M_I386 M_I8086 M_I86 M_I86SM"
	59	?INIT:al="$al M_SYS3 M_SYS5 M_SYSIII M_SYSV M_UNIX M_XENIX"
	60	?INIT:al="$al NeXT OCS88 OSF1 PARISC PC532 PORTAR POSIX"
	61	?INIT:al="$al PWB R3000 RES RISC6000 RT Sun386i SVR3 SVR4"
	62	?INIT:al="$al SYSTYPE_BSD SYSTYPE_SVR4 SYSTYPE_SYSV Tek4132 Tek4300"
	63	?INIT:al="$al UMAXV USGr4 USGr4_2 UTEK UTS UTek UnicomPBB UnicomPBD Utek"
	64	?INIT:al="$al VMS Xenix286"
65	?INIT:al="$al _AIX _AIX32 _AIX370 _AIX41 _AM29000 _COFF _CRAY _CX_UX _EPI"
66	?INIT:al="$al _IBMESA _IBMR2 _M88K _M88KBCS_TARGET _POWER"
67	?INIT:al="$al _MIPSEB _MIPSEL _M_COFF _M_I86 _M_I86SM _M_SYS3"
68	?INIT:al="$al _M_SYS5 _M_SYSIII _M_SYSV _M_UNIX _M_XENIX _NLS _PGC_ _R3000"
69	?INIT:al="$al _SYSTYPE_BSD _SYSTYPE_BSD43 _SYSTYPE_SVR4"
70	?INIT:al="$al _SYSTYPE_SYSV _SYSV3 _U370 _UNICOS"
71	?INIT:al="$al __386BSD__ __BIG_ENDIAN __BIG_ENDIAN__ __BSD_4_4__"
72	?INIT:al="$al __DGUX__ __DPX2__ __H3050R __H3050RX"
73	?INIT:al="$al __LITTLE_ENDIAN __LITTLE_ENDIAN__ __MACH__"
74	?INIT:al="$al __MIPSEB __MIPSEB__ __MIPSEL __MIPSEL__"
75	?INIT:al="$al __Next__ __OSF1__ __PARAGON__ __PGC__ __PWB __STDC__"
76	?INIT:al="$al __SVR4_2__ __UMAXV__"
77	?INIT:al="$al ____386BSD____ __alpha __alpha__ __amiga"
78	?INIT:al="$al __bsd4_2 __bsd4_2__ __bsdi__ __convex__"
79	?INIT:al="$al __host_mips__"
80	?INIT:al="$al __hp9000s200 __hp9000s300 __hp9000s400 __hp9000s500"
81	?INIT:al="$al __hp9000s500 __hp9000s700 __hp9000s800"
82	?INIT:al="$al __hppa __hpux __hp_osf __i286 __i286__ __i386 __i386__"
83	?INIT:al="$al __i486 __i486__ __i860 __i860__ __ibmesa __ksr1__ __linux__"
84	?INIT:al="$al __m68k __m68k__ __m88100__ __m88k __m88k__"
85	?INIT:al="$al __mc68000 __mc68000__ __mc68020 __mc68020__"
86	?INIT:al="$al __mc68030 __mc68030__ __mc68040 __mc68040__"
87	?INIT:al="$al __mc88100 __mc88100__ __mips __mips__"
88	?INIT:al="$al __motorola__ __osf__ __pa_risc __sparc__ __stdc__"
89	?INIT:al="$al __sun __sun__ __svr3__ __svr4__ __ultrix __ultrix__"
90	?INIT:al="$al __unix __unix__ __uxpm__ __uxps__ __vax __vax__"
91	?INIT:al="$al _host_mips _mips _unix"
92	?INIT:al="$al a29k aegis aix aixpc alliant alpha am29000 amiga ansi ardent"
93	?INIT:al="$al apollo ardent att386 att3b"
94	?INIT:al="$al bsd bsd43 bsd4_2 bsd4_3 bsd4_4 bsdi bull"
95	?INIT:al="$al cadmus clipper concurrent convex cray ctix"
96	?INIT:al="$al dmert encore gcos gcx gimpel gould"
97	?INIT:al="$al hbullx20 hcx host_mips hp200 hp300 hp700 hp800"
98	?INIT:al="$al hp9000 hp9000s300 hp9000s400 hp9000s500"
99	?INIT:al="$al hp9000s700 hp9000s800 hp9k8 hppa hpux"
100	?INIT:al="$al i186 i286 i386 i486 i8086"
101	?INIT:al="$al i80960 i860 iAPX286 ibm ibm032 ibmrt interdata is68k"
102	?INIT:al="$al ksr1 linux luna luna88k m68k m88100 m88k"
103	?INIT:al="$al mc300 mc500 mc68000 mc68010 mc68020 mc68030"
104	?INIT:al="$al mc68040 mc68060 mc68k mc68k32 mc700"
105	?INIT:al="$al mc88000 mc88100 merlin mert mips mvs n16"
106	?INIT:al="$al ncl_el ncl_mr"
107	?INIT:al="$al news1500 news1700 news1800 news1900 news3700"
108	?INIT:al="$al news700 news800 news900 ns16000 ns32000"
109	?INIT:al="$al ns32016 ns32332 ns32k nsc32000 os osf"
110	?INIT:al="$al parisc pc532 pdp11 plexus posix pyr"
111	?INIT:al="$al riscix riscos scs sequent sgi sinix sony sony_news"
112	?INIT:al="$al sonyrisc sparc sparclite spectrum stardent stratos"
113	?INIT:al="$al sun sun3 sun386 svr4 sysV68 sysV88"
114	?INIT:al="$al titan tower tower32 tower32_200 tower32_600 tower32_700"
115	?INIT:al="$al tower32_800 tower32_850 tss u370 u3b u3b2 u3b20 u3b200"
116	?INIT:al="$al u3b20d u3b5 ultrix unix unixpc unos vax venix vms"
117	?INIT:al="$al xenix z8000"
118	?INIT:
119	?S:ccsymbols:
120	?S: The variable contains the symbols defined by the C compiler alone.
121	?S: The symbols defined by cpp or by cc when it calls cpp are not in
122	?S: this list, see cppsymbols and cppccsymbols.
123	?S: The list is a space-separated list of symbol=value tokens.
124	?S:.
125	?S:cppsymbols:
126	?S: The variable contains the symbols defined by the C preprocessor
127	?S: alone. The symbols defined by cc or by cc when it calls cpp are
128	?S: not in this list, see ccsymbols and cppccsymbols.
129	?S: The list is a space-separated list of symbol=value tokens.
130	?S:.
131	?S:cppccsymbols:
132	?S: The variable contains the symbols defined by the C compiler when
133	?S: when it calls cpp. The symbols defined by the cc alone or cpp
134	?S: alone are not in this list, see ccsymbols and cppsymbols.
135	?S: The list is a space-separated list of symbol=value tokens.
136	?S:.
137	?F:!Cppsym.true
138	?F:!ccsym.com
139	?F:!ccsym.cpp
140	?F:!ccsym.own
141	: get C preprocessor symbols handy
142	echo " "
143	$echo $n "Hmm... $c"
144	?X: The following used to be tr '[ - ]' ... but this was rejected by AIX 3.2
145	?X: since the endpoints where the same (from patch 12u8 to patch).
146	echo $al \| $tr ' ' $trnl >Cppsym.know
147	$cat <<EOSS >Cppsym
148	$startsh
149	case "\$1" in
150	-l) list=true
151	shift
152	;;
153	esac
154	unknown=''
155	case "\$list\$#" in
156	1\|2)
157	for sym do
158	if $contains "^\$1$" Cppsym.true >/dev/null 2>&1; then
159	exit 0
160	elif $contains "^\$1$" Cppsym.know >/dev/null 2>&1; then
161	:
162	else
163	unknown="\$unknown \$sym"
164	fi
165	done
166	set X \$unknown
167	shift
168	;;
169	esac
170	case \$# in
171	0) exit 1;;
172	esac
173	echo \$* \| $tr ' ' '$trnl' \| $sed -e 's/\(.*\)/\\
174	#ifdef \1\\
175	exit 0; _ _ _ _\1\\ \1\\
176	#endif\\
177	/' >Cppsym\$\$
178	echo "exit 1; _ _ _" >>Cppsym\$\$
179	$cppstdin $cppminus <Cppsym\$\$ \| $grep '^exit [01]; _ _' >Cppsym2\$\$
180	case "\$list" in
181	true) $awk 'NF > 5 {print substr(\$6,2,100)}' <Cppsym2\$\$ ;;
182	*)
183	sh Cppsym2\$\$
184	status=\$?
185	;;
186	esac
187	$rm -f Cppsym\$\$ Cppsym2\$\$
188	exit \$status
189	EOSS
190	chmod +x Cppsym
191	$eunicefix Cppsym
192	./Cppsym -l $al \| $sort \| $grep -v '^$' >Cppsym.true
193
194	: now check the C compiler for additional symbols
195	?X: suggested by Jarkko Hietaniemi <jhi@snakemail.hut.fi>, thanks!
196	postprocess_cc_v=''
197	case "$osname" in
198	aix) postprocess_cc_v="\|$tr , ' '" ;;
199	esac
200	$cat >ccsym <<EOS
201	$startsh
202	$cat >tmp.c <<EOF
203	extern int foo;
204	EOF
205	for i in \`$cc -v -c tmp.c 2>&1 $postprocess_cc_v\`
206	do
207	case "\$i" in
208	-D*) echo "\$i" \| $sed 's/^-D//';;
209	-A) $test "$gccversion" && echo "\$i" \| $sed 's/^-A\(.\)(\(.*\))/\1=\2/';;
210	esac
211	done
212	$rm -f try.c
213	EOS
214	postprocess_cc_v=''
215	chmod +x ccsym
216	$eunicefix ccsym
217	./ccsym > ccsym1.raw
218	?X: AIX complains if $uniq is passed an empty file. ($sort apparently
219	?X: doesn't care.) --AD 14 July 1998
220	if $test -s ccsym1.raw; then
221	$sort ccsym1.raw \| $uniq >ccsym.raw
222	else
223	mv ccsym1.raw ccsym.raw
224	fi
225
226	?X: canonicalize symbols for easier sort/uniq/comm usage: append =1 if no = sign
227	?X: the awk script must be on two lines for older awk programs, sigh! -- ADO
228	$awk '/\=/ { print $0; next }
229	{ print $0"=1" }' ccsym.raw >ccsym.list
230	$awk '{ print $0"=1" }' Cppsym.true >ccsym.true
231	$comm -13 ccsym.true ccsym.list >ccsym.own
232	$comm -12 ccsym.true ccsym.list >ccsym.com
233	$comm -23 ccsym.true ccsym.list >ccsym.cpp
234	also=''
235	if $test -z ccsym.raw; then
236	echo "Your C compiler doesn't seem to define any symbols!" >&4
237	echo " "
238	echo "However, your C preprocessor defines the following symbols:"
239	$cat Cppsym.true
240	ccsymbols=''
241	cppsymbols=`$cat Cppsym.true`
242	cppsymbols=`echo $cppsymbols`
243	cppccsymbols="$cppsymbols"
244	else
245	if $test -s ccsym.com; then
246	echo "Your C compiler and pre-processor define these symbols:"
247	$sed -e 's/\(.\)=./\1/' ccsym.com
248	also='also '
249	symbols='ones'
250	cppccsymbols=`$cat ccsym.com`
251	cppccsymbols=`echo $cppccsymbols`
252	$test "$silent" \|\| sleep 1
253	fi
254	if $test -s ccsym.cpp; then
255	$test "$also" && echo " "
256	echo "Your C pre-processor ${also}defines the following symbols:"
257	$sed -e 's/\(.\)=./\1/' ccsym.cpp
258	also='further '
259	cppsymbols=`$cat ccsym.cpp`
260	cppsymbols=`echo $cppsymbols`
261	$test "$silent" \|\| sleep 1
262	fi
263	if $test -s ccsym.own; then
264	$test "$also" && echo " "
265	echo "Your C compiler ${also}defines the following cpp symbols:"
266	$sed -e 's/\(.*\)=1/\1/' ccsym.own
267	$sed -e 's/\(.\)=./\1/' ccsym.own \| $uniq >>Cppsym.true
268	ccsymbols=`$cat ccsym.own`
269	ccsymbols=`echo $ccsymbols`
270	$test "$silent" \|\| sleep 1
271	fi
272	fi
273	$rm -f ccsym*
274