:
### this script contains archaic constructs that work with all sh variants ###
# Glenn Fowler
# AT&T Research
#
# @(#)C probe (AT&T Research) 2012-02-29
#
# probe [ -d ] c-compiler-path [ attributes ]
#
# common C probe preamble for the tool specific probes
#
# NOTE: some cc -E's do syntax analysis!
#
# probe_* are first eval'd and then attempted from left to right
#
probe_binding="-dy -dn -Bdynamic -Bstatic '-Wl,-ashared -Wl,+s' -Wl,-aarchive -call_shared -non_shared -dynamic -static -bshared -bstatic '' -static"
probe_env="CC_OPTIONS CCOPTS LD_OPTIONS LDOPTS LIBPATH LPATH"
probe_include="stdio.h iostream.h complex.h ctype.h plot.h stdarg.h varargs.h ranlib.h hash.h sys/types.h stab.h cmath cstdio iostream string"
probe_longlong="long 'long long'"
probe_longlong_t="__int64_t _int64_t __int64 _int64 int64"
probe_l="l yyreject m sin mopt sin"
probe_lxx="C exit ++ exit g++ exit"
probe_ppprefix="a n"
probe_size="size"
probe_src="cxx C cc c"
probe_sa=".sa"
probe_sd=".dll .lib .dll .x"
probe_sdb=".pdb"
probe_so=".dylib .so .sl"
probe_symprefix="_"
probe_verbose="'-v -v' '-# -#' '-d -d' -dryrun '-V -V'"
probe_version="--version -V -version -v"
#
# the following are set by the preamble for the tool specific probe
#
cc=cc
debug=
dir=.
dll=.dll
dynamic=
exe=exe
executable="test -x"
hosted=
ifs=${IFS-'
'}
obj=o
ppenv=
ppopt=
predef=
prepred=
sa=
sd=
sdb=
so=
sov=
static=
stdlib=
stdpp=
suffix_command=
if test "" != "$TMPDIR" -a -d "$TMPDIR"
then tmpdir=$TMPDIR
else tmpdir=/tmp
fi
tmpdir=$tmpdir/probe$$
undef="define defined elif else endif error if ifdef ifndef include line pragma undef __STDC__ __STDPP__ __ARGC__ __BASE__ __BASE_FILE__ __DATE__ __FILE__ __FUNCTION__ __INCLUDE_LEVEL__ __LINE__ __PATH__ __TIME__ __TIMESTAMP__ __VERSION__"
version_flags=
version_stamp=
version_string=
#
# constrain the environment
#
DISPLAY=
LC_ALL=C
export DISPLAY LC_ALL
#
# now the common probes
#
while :
do case $1 in
-d) debug=1 ;;
-*) set ''; break ;;
*) break ;;
esac
shift
done
cc=$1
case $cc in
[\\/]*|[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz]:\\*)
;;
*) echo "Usage: $0 [ -d ] c-compiler-path [ attributes ]" >&2
exit 1
;;
esac
ATTRIBUTES=
eval $2
_probe_PATH=$PATH
PATH=/usr/bin:/bin:$PATH
case $0 in
*[\\/]*) dir=`echo $0 | sed -e 's,[\\/][\\/]*[^\\/]*\$,,'` ;;
esac
$executable . 2>/dev/null || executable='test -r'
case $SHELL in
[\\/]*|[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz]:\\*)
sh=$SHELL
;;
*) sh=/bin/sh
;;
esac
trap 'code=$?; cd ..; rm -rf $tmpdir; exit $code' 0 1 2 3
mkdir $tmpdir
cd $tmpdir
exec 3>&1 4>&2 </dev/null
case $debug in
"") exec >/dev/null 2>&1
(ulimit -c 0) >/dev/null 2>&1 && ulimit -c 0
;;
*) PS4='+$LINENO+ '
set -x
;;
esac
if (xxx=xxx; unset xxx)
then UNSET=1
else UNSET=
fi
eval set x $probe_env
while :
do shift
case $# in
0) break ;;
esac
eval x='$'$1
case $x in
'') continue ;;
esac
case $1 in
*PATH) _probe_export="$_probe_export $1='$x'" ;;
esac
case $UNSET in
'') eval $1=
export $1
;;
*) unset $1
;;
esac
done
if test -f "$dir/probe.ini"
then . "$dir/probe.ini"
IFS=$ifs
fi
mkdir suffix
cd suffix
for src in $probe_src
do echo "int main(){return 0;}" > ../test.$src
rm -f test*
if $cc -c ../test.$src
then set test.*
if test -f "$1"
then o="$*"
mv $* ..
for i in $o
do if $cc -o test.exe ../$i
then obj=`echo "$i" | sed -e 's,test.,,'`
$executable test.exe || executable="test -r"
set test*
rm *
if $cc -o test ../$i
then rm $*
set test.*
if $executable "$1"
then exe=`echo "$1" | sed -e 's,test.,,'`
suffix_command=.$exe
fi
fi
break 2
fi
done
fi
fi
done
cd ..
case $src in
c) ;;
*) echo '// (
int
main()
{
class { public: int i; } j;
j.i = 0;
int k = j.i + 1;
return k;
}' > dialect.$src
if $cc -c dialect.$src && $cc -o dialect.$exe dialect.$obj && $executable dialect.$exe
then mv dialect.$src dialect.c
rm -f dialect.$obj dialect.$exe
if $cc -c dialect.c && $cc -o dialect.$exe dialect.$obj && $executable dialect.$exe
then src=c
else set x $cc
while :
do shift
case $# in
0) break ;;
esac
case $1 in
*=*) continue ;;
esac
case `echo $1 | sed -e 's,.*/,,'` in
*CC*|*++*|*[xX][xX]*|*[pP][lL][uU][sS]*) ;;
*) src=c ;;
esac
break
done
fi
else src=c
fi
;;
esac
set x x '(' 1 'int x;' 0
while :
do shift
shift
case $# in
[01]) break ;;
esac
rm -f test.$obj
echo "$1" > test.$src
$cc -c test.$src
r=$?
case $r in
0) test -f test.$obj || r=1 ;;
*) r=1 ;;
esac
case $2:$r in
0:0) ;;
0:1) echo "$cc: not a C compiler: failed to compile \`\`$1''" >&4
exit 1
;;
1:0) echo "$cc: not a C compiler: successfully compiled \`\`$1''" >&4
exit 1
;;
esac
done
hosttype=`package CC="$cc" || $SHELL -c "package CC='$cc'"`
case $hosttype in
*[Uu][Ss][Aa][Gg][Ee]:*)
hosttype=`PATH=$_probe_PATH; export PATH; package CC="$cc" || $SHELL -c "package CC='$cc'"`
;;
esac
echo '#include <stdio.h>
int main(){printf("hello");return 0;}' > dynamic.$src
echo 'extern int sfclose() { return 0; }' > fun.$src
if $cc -c dynamic.$src && $cc -c fun.$src
then eval set x $probe_so
while :
do shift
case $# in
0) break ;;
esac
for i in foo junk
do rm -f dynamic.$exe
if $cc -L. -o dynamic.$exe dynamic.$obj -l$i
then : "there's really a -l$i"?
else rm -f dynamic.$exe
cat fun.$obj > lib$i$1
$cc -L. -o dynamic.$exe dynamic.$obj -l$i && $executable dynamic.$exe
x=$?
rm lib$i$1
case $x in
0) so=$1
rm -f dynamic.$exe > lib$i$1.1
$cc -L. -o dynamic.$exe dynamic.$obj -l$i && $executable dynamic.$exe
x=$?
rm lib$i$1.1
case $x in
0) sov=1 ;;
esac
break 2
;;
*) break
;;
esac
fi
done
k=
for i in "" .1 .2 .3 .4 .5 .6 .7 .8 .9
do rm -f dynamic.$exe > libc$1$i
$cc -L. -o dynamic.$exe dynamic.$obj && $executable dynamic.$exe
x=$?
(cd ..; rm $tmpdir/libc$1$i)
case $x in
0) ;;
*) k=X$k
case $k in
XXX) break ;;
esac
;;
esac
done
case $k in
XXX) so=$1
sov=1
break
;;
?*) so=$1
break
;;
esac
done
rm -f dynamic.$exe
if $cc -o dynamic.$exe dynamic.$obj 2>e && $executable dynamic.$exe
then e=`wc -l e`
maybe=
eval set x x $probe_binding
while :
do shift
shift
case $# in
0) break ;;
esac
rm -f dynamic.$exe
$cc -o dynamic.$exe $1 dynamic.$obj 2>e && $executable dynamic.$exe || continue
case $1 in
?*) case $maybe in
"") maybe=$1 ;;
*) maybe=-- ;;
esac
;;
esac
case `wc -l e` in
$e) ;;
*) continue ;;
esac
d=`ls -s dynamic.$exe`
rm -f dynamic.$exe
$cc -o dynamic.$exe $2 dynamic.$obj 2>e && $executable dynamic.$exe || continue
case `wc -l e` in
$e) ;;
*) continue ;;
esac
case `ls -s dynamic.$exe` in
$d) ;;
*) dynamic=$1
static=$2
maybe=
break
;;
esac
done
case $maybe in
""|--) ;;
*) rm -f dynamic.$exe
if $cc -o dynamic.$exe $maybe dynamic.$obj 2>e && $executable dynamic.$exe
then e=`wc -l e`
if $cc -o dynamic.$exe $maybe-bogus-bogus-bogus dynamic.$obj 2>e && $executable dynamic.$exe
then case `wc -l e` in
$e) ;;
*) dynamic=$maybe ;;
esac
else dynamic=$maybe
fi
fi
;;
esac
fi
fi
eval set x $probe_version
shift
for o in "$@"
do if $cc $o > version.out 2>&1
then version_string=`sed -e '/ is /d' -e 's/;/ /g' version.out | sed -e 1q`
case $version_string in
''|*[Ee][Rr][Rr][Oo][Rr]*|*[Ff][Aa][Tt][Aa][Ll]*|*[Ww][Aa][Rr][Nn][Ii][Nn][Gg]*|*[Oo][Pp][Tt][Ii][Oo][Nn]*)
;;
*) version_flags=$o
version_stamp=";VERSION;$o;$version_string;PATH;$cc"
break
;;
esac
fi
done
case $version_stamp in
'') eval set x $probe_version
shift
echo 'int main() { return 0; }' > version.i
for o in "$@"
do if $cc -c $o version.i > version.out 2>&1
then version_string=`sed -e '/ is /d' -e 's/;/ /g' version.out | sed -e 1q`
case $version_string in
''|*[Ee][Rr][Rr][Oo][Rr]*|*[Ff][Aa][Tt][Aa][Ll]*|*[Ww][Aa][Rr][Nn][Ii][Nn][Gg]*|*[Oo][Pp][Tt][Ii][Oo][Nn]*)
;;
*) version_flags=$o
break
;;
esac
fi
done
;;
esac
echo 'int main(){return 0;}' > hosted.$src
$cc -o hosted.$exe hosted.$src && ./hosted.$exe && hosted=1
echo '#!'$sh'
echo "" $@' > cpp
chmod +x cpp
case `./cpp -Dprobe` in
*-Dprobe*)
;;
*) cp /bin/echo cpp
chmod u+w cpp
;;
esac
for prefix in $probe_ppprefix `echo $cc | sed -e '/cc\$/!d' -e 's,cc\$,,' -e 's,.*/,,'`
do cp cpp ${prefix}cpp
done
echo "" > flags.$src
echo '#pragma pp:version' > libpp.$src
if test `realcppC=./cpp $cc -Dprobe -E flags.$src | tee cpp.out | grep -c '[-]Dprobe'` -eq 1
then ppenv='realcppC=${ppcmd}'
elif test `cppC=./cpp $cc -Dprobe -E flags.$src | tee cpp.out | grep -c '[-]Dprobe'` -eq 1
then ppenv='cppC=${ppcmd}'
elif test `_CPPNAME=./cpp $cc -Dprobe -E flags.$src | tee cpp.out | grep -c '[-]Dprobe'` -eq 1
then ppenv='_CPPNAME=${ppcmd}'
elif test `_CPP=./cpp $cc -Dprobe -E flags.$src | tee cpp.out | grep -c '[-]Dprobe'` -eq 1
then ppenv='_CPP=${ppcmd}'
elif test `$cc -Dprobe -E -%p+. flags.$src | tee cpp.out | grep -c '[-]Dprobe'` -eq 1 && test `$cc -Dprobe -E -%p+. flags.$src | wc -l` -eq 1
then ppopt='-%p+${ppdir}'
elif test `$cc -Dprobe -E -Yp,. flags.$src | tee cpp.out | grep -c '[-]Dprobe'` -eq 1
then ppopt='-Yp,${ppdir}'
elif test `$cc -Dprobe -E -Qpath $tmpdir flags.$src | tee cpp.out | grep -c '[-]Dprobe'` -eq 1
then ppopt='-Qpath ${ppdir}'
elif test `$cc -Dprobe -E -tp -B./ flags.$src 2>err.out | tee cpp.out | grep -c '[-]Dprobe'` -eq 1 -a ! -s err.out
then ppopt='-tp -B${ppdir}/'
elif test `$cc -Dprobe -E -B./ flags.$src | tee cpp.out | grep -c '[-]Dprobe'` -eq 1
then ppopt='-B${ppdir}/'
elif test `$cc -Dprobe -E -tp -h./ -B flags.$src | tee cpp.out | grep -c '[-]Dprobe'` -eq 1
then ppopt='-tp -h${ppdir}/ -B'
elif test `$cc -Dprobe -E -t p,./cpp flags.$src | tee cpp.out | grep -c '[-]Dprobe'` -eq 1
then ppopt='-t p,${ppcmd}'
else {
eval set x $probe_verbose
shift
for o in "$@"
do $cc -E $o flags.$src
done
} 2>&1 | sed -e "s/['\"]//g" > cpp.out
fi
set x `sed -e 's,[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz]:\\\\,/,g' -e 's,\\\\,/,g' cpp.out`
def=
definclude="-I+C -I-H"
stdinclude=$definclude
case $hosted in
"") usrinclude= ;;
esac
cmdinclude=
while :
do case $# in
0|1) break ;;
esac
shift
case $1 in
-A) case $2 in
*\(*\)) shift
prepred="$prepred `echo $1 | sed 's/\(.*\)(\(.*\))/\1 \2/'`"
;;
esac
;;
-A\(*\))
prepred="$prepred `echo $1 | sed 's/-A\(.*\)(\(.*\))/\1 \2/'`"
;;
-[DI][-+][ABCDEFGHIJKLMNOPQRSTUVWXYZ]*)
stdpp=1
case $1 in
-I?[CH]) case $def in
?*) definclude="$definclude $1" ;;
*) stdinclude="$stdinclude $1" ;;
esac
;;
-I-S*|-YI,*) usrinclude="`echo $1 | sed 's/....//'`" ;;
-Y?,*) ;;
-Y*) usrinclude="`echo $1 | sed 's/..//'`" ;;
esac
;;
-D) shift
case $1 in
[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_]*=*)
predef="$predef
`echo $1 | sed -e 's/=.*//'`"
;;
[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_]*)
predef="$predef
$1"
;;
esac
;;
-Dprobe);;
-D*) case $1 in
-D[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_]*=*)
predef="$predef
`echo $1 | sed -e 's/^-D//' -e 's/=.*//'`"
;;
-D[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_]*)
predef="$predef
`echo $1 | sed -e 's/^-D//'`"
;;
esac
;;
-I) shift
case $1 in
/*) case $def in
?*) definclude="$definclude $1" ;;
*) stdinclude="$stdinclude $1" ;;
esac
cmdinclude="$cmdinclude $1"
;;
esac
;;
-I/*) f=`echo X$1 | sed 's/X-I//'`
case $def in
?*) definclude="$definclude $f" ;;
*) stdinclude="$stdinclude $f" ;;
esac
cmdinclude="$cmdinclude $f"
;;
-U) shift
undef="$undef $1"
;;
-U*) undef="$undef `echo $1 | sed 's/^-U//'`"
;;
flags.$src)def=
;;
esac
done
stdinclude="$stdinclude $definclude"
case " $stdinclude " in
*\ $usrinclude\ *)
case $usrinclude in
usrinclude=
;;
*) case " $stdinclude " in
*\ /usr/include\ *)
usrinclude=
;;
*) usrinclude=/usr/include
;;
esac
;;
esac
;;
esac
tstinclude=`$cc -v -E flags.$src 2>&1 | sed -e '1,/[iI][nN][cC][lL][uU][dD][eE][ ]*<[.][.][.]>/d' -e '/^[eE][nN][dD] [oO][fF] [sS][eE][aA][rR][cC][hH]/,\$d'`
j=$tstinclude
case $j in
*/*) ;;
*) j=$cmdinclude ;;
esac
tstinclude=
good=
nogood=
C_hdr="libc.h"
for i in $j
do if test -d "$i"
then tstinclude="$tstinclude $i"
h=
for f in $c_hdr
do if test -f "$i/$f"
then case $i in
*/CC) nogood=1 ;;
*) good=1 ;;
esac
else h="$h $f"
fi
done
c_hdr=$h
h=
for f in $C_hdr
do if test -f "$i/$f"
then case $i in
*/CC) nogood=1 ;;
*) good=1 ;;
esac
else h="$h $f"
fi
done
C_hdr=$h
fi
done
case $nogood in
1) good=0 ;;
esac
case $good in
1) case $c_hdr in
?*) bad=1
usrinclude=/usr/include
set '' $tstinclude /usr/include
;;
*) set '' $tstinclude
;;
esac
shift
stdinclude=$*
echo "#include <sys/types.h>" > include.$src
$cc -E include.$src | sed -e '/# 1 "[\\/]/!d' -e 's,[^"]*",,' -e 's,[\\/][^\\/]*".*,,' -e 's,[\\/]sys,,' > include.out
for f in `cat include.out`
do if test -d "$f"
then g=`echo $f | sed -e 's,[\\/][\\/]*[^\\/]*$,,'`
case " $stdinclude " in
*\ $f\ *|*\ $g\ *)
;;
*) stdinclude="$stdinclude $f"
case $f in
/usr/include) usrinclude=$f ;;
esac
bad=1
;;
esac
fi
done
;;
*) case $ppopt$ppenv in
?*) echo '#!'$sh'
echo $VIRTUAL_ROOT | sed "s/:.*//"' > cpp
chmod +x cpp
ppcmd=cpp
ppdir=.
eval x='`'$ppenv '$'cc -E $ppopt flags.$src'`'
case $x in
?*) tstinclude=$x/usr/include
;;
esac
cp /bin/echo cpp
chmod u+w cpp
;;
esac
eval set x $probe_include
while :
do shift
case $# in
0) break ;;
esac
echo "#include <$1>" > include.$src
$cc -E include.$src
done > include.out
ccinclude=
x=$stdinclude
stdinclude=
subinclude=
for f in $x $tstinclude `sed -e 's,\\\\,/,g' -e 's,///*,/,g' -e 's,"[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz]:/,"/,g' -e '/^#[line ]*[0123456789][0123456789]*[ ][ ]*"[\\/]/!d' -e 's/^#[line ]*[0123456789][0123456789]*[ ][ ]*"\(.*\)[\\/].*".*/\1/' include.out | sort -u`
do case $f in
-*) ;;
*/) f=`echo $f | sed -e 's,//*\$,,'` ;;
*/.) f=`echo $f | sed -e 's,//*.\$,,'` ;;
esac
case $f in
-I*) ;;
*/cc) ccinclude=1
;;
*/sys) continue
;;
*/include/*/*)
;;
*/include/*)
subinclude="$subinclude $f"
continue
;;
esac
if test -d "$f"
then case " $stdinclude " in
*\ $f\ *) ;;
*) stdinclude="$stdinclude $f" ;;
esac
fi
done
rm include.out
case $ccinclude in
?*) eval set x $probe_include
while :
do shift
case $# in
0) break ;;
esac
echo "#include <cc/$1>" > include.$src
if $cc -E include.$src > /dev/null
then break
fi
done
case $# in
0) ;;
*) x=$stdinclude
stdinclude=
for f in $x
do case $f in
*/cc) ;;
*) stdinclude="$stdinclude $f" ;;
esac
done
;;
esac
;;
esac
case $subinclude in
?*) for i in $subinclude
do for j in $stdinclude
do case $i in
$j/*/*) ;;
$j/*) both=
eval set x $probe_include
while :
do shift
case $# in
0) for k in $both
do echo "#include <$k>" > include.$src
$cc -E include.$src > include.out
I=`grep -c $i/$k < include.out`
J=`grep -c $j/$k < include.out`
case $I:$J in
0:*) ;;
*:0) stdinclude="$i $stdinclude"
break
;;
esac
done
continue 3
;;
esac
if test -f $i/$1
then if test ! -f $j/$1
then break 2
fi
both="$both $1"
fi
done
;;
$j) continue 2
;;
esac
done
stdinclude="$i $stdinclude"
done
;;
esac
{
for i in $stdinclude
do
case $i in
$usrinclude) ;;
*) echo $i $i ;;
esac
done
eval set x $probe_include
while :
do shift
case $# in
0) break ;;
esac
echo "#include <$1>" > t.c
p=
for j in `$cc -E t.c | grep "$1" | sed -e 's,\\\\,/,g' -e 's,"[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz]:/,"/,g' -e '/^#[line ]*1[ ][ ]*"[\\/]/!d' -e 's/^#[line ]*1[ ][ ]*"\(.*\)[\\/].*".*/\1/'`
do j=`echo $j | sed -e 's,///*,/,g' -e 's,/$,,'`
case $p in
?*) echo $p $j ;;
esac
p=$j
done
done
case $usrinclude in
?*) echo $usrinclude $usrinclude ;;
esac
} | tsort > tmp.tmp
tstinclude=`cat tmp.tmp`
bad=
for i in $stdinclude
do case "
$tstinclude
" in
*"
$i
"*) ;;
*) bad=1
break
;;
esac
done
;;
esac
case $bad in
"") x=$stdinclude
stdinclude=
z=
for i in $tstinclude
do case " $x " in
*" $i "*)
stdinclude="$stdinclude $i"
z=$i
;;
esac
done
case $usrinclude in
'') usrinclude=$z ;;
esac
;;
esac
case $hosted in
"") case $usrinclude in
/usr/include) usrinclude= ;;
esac
;;
esac
case $usrinclude in
?*) case " $stdinclude " in
*\ $usrinclude\ *)
x=$stdinclude
stdinclude=
for f in $x
do case $f in
$usrinclude) ;;
*) stdinclude="$stdinclude $f" ;;
esac
done
;;
esac
;;
esac
# drop dups -- they creep in somehow
x=$stdinclude
stdinclude=
for f in $x
do case " $stdinclude $usrinclude " in
*" $f "*) ;;
*) stdinclude="$stdinclude $f" ;;
esac
done