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

?RCS: $Id: libs.U,v 3.0.1.6 1997/02/28 16:09:11 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: libs.U,v $
?RCS: Revision 3.0.1.6  1997/02/28  16:09:11  ram
?RCS: patch61: replaced .a with $_a all over the place
?RCS:
?RCS: Revision 3.0.1.5  1995/07/25  14:12:05  ram
?RCS: patch56: now knows about OS/2 platforms
?RCS:
?RCS: Revision 3.0.1.4  1994/10/29  16:24:22  ram
?RCS: patch36: removed old broken thislib/thatlib processing (ADO)
?RCS:
?RCS: Revision 3.0.1.3  1994/06/20  07:05:44  ram
?RCS: patch30: code cleanup with if/elif by ADO and RAM
?RCS: patch30: undone patch23 for libswanted default setting
?RCS:
?RCS: Revision 3.0.1.2  1994/05/06  15:08:45  ram
?RCS: patch23: now includes ordered default libswanted variable (ADO)
?RCS: patch23: major cleanup for library lookups (ADO)
?RCS:
?RCS: Revision 3.0.1.1  1993/08/25  14:02:31  ram
?RCS: patch6: added default for libs
?RCS:
?RCS: Revision 3.0  1993/08/18  12:09:03  ram
?RCS: Baseline for dist 3.0 netwide release.
?RCS:
?MAKE:libs ignore_versioned_solibs libsfound libsfiles libsdirs libspath: \
	test cat Myread Oldconfig Loc libpth package xlibpth so _a \
	usesocks sed uselongdouble
?MAKE:	-pick add $@ %<
?S:libs:
?S:	This variable holds the additional libraries we want to use.
?S:	It is up to the Makefile to deal with it.  The list can be empty.
?S:.
?S:libsfound:
?S:	This variable holds the full pathnames of the libraries
?S:	we found and accepted.
?S:.
?S:libsfiles:
?S:	This variable holds the filenames aka basenames of the libraries
?S:	we found and accepted.
?S:.
?S:libsdirs:
?S:	This variable holds the directory names aka dirnames of the libraries
?S:	we found and accepted, duplicates are removed.
?S:.
?S:libspath:
?S:	This variable holds the directory names probed for libraries.
?S:.
?S:ignore_versioned_solibs:
?S:	This variable should be non-empty if non-versioned shared
?S:	libraries (libfoo.so.x.y) are to be ignored (because they
?S:	cannot be linked against).
?S:.
?T:xxx yyy thislib thisdir libswanted libstyle
?D:libs=''
?X:
?X: This order is chosen so that libraries  -lndir, -ldir, -lucb, -lbsd,
?X: -lBSD, -lPW, and -lx only get used if there are unresolved
?X: routines at link time.  Usually, these are backwards compatability
?X: libraries, and may not be as reliable as the standard c library.
?X:
?X: The -lsocket -linet -lnsl order has been reported to be necessary
?X: for at least one SVR4 implementation.
?X: -lc must proceed -lucb or -lbsd for most Solaris applications.
?X: -lc_s proceeds -lc so we pick up the shared library version, if
?X: it is available.
?X:
?X: The ordering of c, posix, and cposix is a guess and almost
?X: certainly wrong on about half of all systems.
?X:
?X: Set proper libswanted in your private Myinit.U if needed.
?X:
?X:: default ordered library list
?X:libswanted='net socket inet bind nsl nm sdbm gdbm ndbm dbm malloc dl'
?X:libswanted="$libswanted dld sun m c_s c posix cposix ndir dir ucb"
?X:libswanted="$libswanted bsd BSD PW x"
?X:
?INIT:: default library list
?INIT:libswanted=''
?INIT:: some systems want to use only the non-versioned libso:s
?INIT:ignore_versioned_solibs=''
?LINT:extern libscheck
?LINT:extern p
?LINT:use uselongdouble
: Looking for optional libraries
echo " "
echo "Checking for optional libraries..." >&4
case "$libs" in
' '|'') dflt='';;
*) dflt="$libs";;
esac
case "$libswanted" in
'') libswanted='c_s';;
esac
?X: libsocks has nasty naming scheme.
?X: This does not work if somebody wants SOCKS 4.
case "$usesocks" in
"$define") libswanted="$libswanted socks5 socks5_sh" ;;
esac
libsfound=''
libsfiles=''
libsdirs=''
libspath=''
for thisdir in $libpth $xlibpth; do
  test -d $thisdir && libspath="$libspath $thisdir"
done
for thislib in $libswanted; do
	for thisdir in $libspath; do
	    xxx=''
	    if $test ! -f "$xxx" -a "X$ignore_versioned_solibs" = "X"; then
		xxx=`ls $thisdir/lib$thislib.$so.[0-9] 2>/dev/null|sed -n '$p'`
	        $test -f "$xxx" && eval $libscheck
		$test -f "$xxx" && libstyle=shared
	    fi
	    if test ! -f "$xxx"; then
		xxx=$thisdir/lib$thislib.$so
	        $test -f "$xxx" && eval $libscheck
		$test -f "$xxx" && libstyle=shared
	    fi
	    if test ! -f "$xxx"; then
		xxx=$thisdir/lib$thislib$_a
	        $test -f "$xxx" && eval $libscheck
		$test -f "$xxx" && libstyle=static
	    fi
	    if test ! -f "$xxx"; then
		xxx=$thisdir/$thislib$_a
	        $test -f "$xxx" && eval $libscheck
		$test -f "$xxx" && libstyle=static
	    fi
	    if test ! -f "$xxx"; then
		xxx=$thisdir/lib${thislib}_s$_a
	        $test -f "$xxx" && eval $libscheck
		$test -f "$xxx" && libstyle=static
		$test -f "$xxx" && thislib=${thislib}_s
	    fi
	    if test ! -f "$xxx"; then
		xxx=$thisdir/Slib$thislib$_a
	        $test -f "$xxx" && eval $libscheck
		$test -f "$xxx" && libstyle=static
	    fi
	    if $test -f "$xxx"; then
		case "$libstyle" in
		shared) echo "Found -l$thislib (shared)." ;;
		static) echo "Found -l$thislib." ;;
		*)      echo "Found -l$thislib ($libstyle)." ;;
		esac
		case " $dflt " in
		*"-l$thislib "*);;
		*) dflt="$dflt -l$thislib"
                   libsfound="$libsfound $xxx"
                   yyy=`basename $xxx`
                   libsfiles="$libsfiles $yyy"
                   yyy=`echo $xxx|$sed -e "s%/$yyy\\$%%"`
                   case " $libsdirs " in
                   *" $yyy "*) ;;
                   *) libsdirs="$libsdirs $yyy" ;;
                   esac
		   ;;
		esac
		break
	    fi
	done
	if $test ! -f "$xxx"; then
	    echo "No -l$thislib."
	fi
done
set X $dflt
shift
dflt="$*"
case "$libs" in
'') dflt="$dflt";;
*) dflt="$libs";;
esac
case "$dflt" in
' '|'') dflt='none';;
esac

$cat <<EOM

In order to compile $package on your machine, a number of libraries
are usually needed.  Include any other special libraries here as well.
Say "none" for none.  The default list is almost always right.
EOM

echo " "
rp="What libraries to use?"
. ./myread
case "$ans" in
none) libs=' ';;
*) libs="$ans";;
esac
Commit	Line	Data
959f3c4c JH	1	?RCS: $Id: libs.U,v 3.0.1.6 1997/02/28 16:09:11 ram Exp $
	2	?RCS:
	3	?RCS: Copyright (c) 1991-1993, Raphael Manfredi
4c42341b	4	?RCS:
959f3c4c JH	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: libs.U,v $
	12	?RCS: Revision 3.0.1.6 1997/02/28 16:09:11 ram
	13	?RCS: patch61: replaced .a with $_a all over the place
	14	?RCS:
	15	?RCS: Revision 3.0.1.5 1995/07/25 14:12:05 ram
	16	?RCS: patch56: now knows about OS/2 platforms
	17	?RCS:
	18	?RCS: Revision 3.0.1.4 1994/10/29 16:24:22 ram
	19	?RCS: patch36: removed old broken thislib/thatlib processing (ADO)
	20	?RCS:
	21	?RCS: Revision 3.0.1.3 1994/06/20 07:05:44 ram
	22	?RCS: patch30: code cleanup with if/elif by ADO and RAM
	23	?RCS: patch30: undone patch23 for libswanted default setting
	24	?RCS:
	25	?RCS: Revision 3.0.1.2 1994/05/06 15:08:45 ram
	26	?RCS: patch23: now includes ordered default libswanted variable (ADO)
	27	?RCS: patch23: major cleanup for library lookups (ADO)
	28	?RCS:
	29	?RCS: Revision 3.0.1.1 1993/08/25 14:02:31 ram
	30	?RCS: patch6: added default for libs
	31	?RCS:
	32	?RCS: Revision 3.0 1993/08/18 12:09:03 ram
	33	?RCS: Baseline for dist 3.0 netwide release.
	34	?RCS:
9544e06a	35	?MAKE:libs ignore_versioned_solibs libsfound libsfiles libsdirs libspath: \
508a21cd	36	test cat Myread Oldconfig Loc libpth package xlibpth so _a \
cfa96255	37	usesocks sed uselongdouble
959f3c4c JH	38	?MAKE: -pick add $@ %<
	39	?S:libs:
	40	?S: This variable holds the additional libraries we want to use.
7fdfc47f	41	?S: It is up to the Makefile to deal with it. The list can be empty.
959f3c4c	42	?S:.
d088635c JH	43	?S:libsfound:
	44	?S: This variable holds the full pathnames of the libraries
	45	?S: we found and accepted.
	46	?S:.
	47	?S:libsfiles:
	48	?S: This variable holds the filenames aka basenames of the libraries
	49	?S: we found and accepted.
	50	?S:.
	51	?S:libsdirs:
	52	?S: This variable holds the directory names aka dirnames of the libraries
	53	?S: we found and accepted, duplicates are removed.
	54	?S:.
9544e06a JH	55	?S:libspath:
	56	?S: This variable holds the directory names probed for libraries.
	57	?S:.
959f3c4c JH	58	?S:ignore_versioned_solibs:
	59	?S: This variable should be non-empty if non-versioned shared
	60	?S: libraries (libfoo.so.x.y) are to be ignored (because they
	61	?S: cannot be linked against).
	62	?S:.
d12857d9	63	?T:xxx yyy thislib thisdir libswanted libstyle
959f3c4c JH	64	?D:libs=''
	65	?X:
	66	?X: This order is chosen so that libraries -lndir, -ldir, -lucb, -lbsd,
	67	?X: -lBSD, -lPW, and -lx only get used if there are unresolved
	68	?X: routines at link time. Usually, these are backwards compatability
	69	?X: libraries, and may not be as reliable as the standard c library.
	70	?X:
	71	?X: The -lsocket -linet -lnsl order has been reported to be necessary
	72	?X: for at least one SVR4 implementation.
	73	?X: -lc must proceed -lucb or -lbsd for most Solaris applications.
	74	?X: -lc_s proceeds -lc so we pick up the shared library version, if
	75	?X: it is available.
	76	?X:
	77	?X: The ordering of c, posix, and cposix is a guess and almost
	78	?X: certainly wrong on about half of all systems.
	79	?X:
	80	?X: Set proper libswanted in your private Myinit.U if needed.
	81	?X:
	82	?X:: default ordered library list
c1dcd061	83	?X:libswanted='net socket inet bind nsl nm sdbm gdbm ndbm dbm malloc dl'
959f3c4c	84	?X:libswanted="$libswanted dld sun m c_s c posix cposix ndir dir ucb"
4a688124	85	?X:libswanted="$libswanted bsd BSD PW x"
959f3c4c JH	86	?X:
	87	?INIT:: default library list
	88	?INIT:libswanted=''
	89	?INIT:: some systems want to use only the non-versioned libso:s
	90	?INIT:ignore_versioned_solibs=''
9544e06a	91	?LINT:extern libscheck
9f542ee7	92	?LINT:extern p
cfa96255	93	?LINT:use uselongdouble
959f3c4c JH	94	: Looking for optional libraries
	95	echo " "
	96	echo "Checking for optional libraries..." >&4
	97	case "$libs" in
	98	' '\|'') dflt='';;
	99	*) dflt="$libs";;
	100	esac
	101	case "$libswanted" in
	102	'') libswanted='c_s';;
	103	esac
fd1a35d0	104	?X: libsocks has nasty naming scheme.
4c42341b	105	?X: This does not work if somebody wants SOCKS 4.
959f3c4c	106	case "$usesocks" in
1cc20cf7	107	"$define") libswanted="$libswanted socks5 socks5_sh" ;;
959f3c4c	108	esac
d75930da JH	109	libsfound=''
	110	libsfiles=''
	111	libsdirs=''
9544e06a JH	112	libspath=''
	113	for thisdir in $libpth $xlibpth; do
	114	test -d $thisdir && libspath="$libspath $thisdir"
	115	done
959f3c4c	116	for thislib in $libswanted; do
9544e06a	117	for thisdir in $libspath; do
4ee071c7 JH	118	xxx=''
4ee071c7 JH	119	if $test ! -f "$xxx" -a "X$ignore_versioned_solibs" = "X"; then
e921e17c	120	xxx=`ls $thisdir/lib$thislib.$so.[0-9] 2>/dev/null\|sed -n '$p'`
4ee071c7 JH	121	$test -f "$xxx" && eval $libscheck
	122	$test -f "$xxx" && libstyle=shared
	123	fi
	124	if test ! -f "$xxx"; then
	125	xxx=$thisdir/lib$thislib.$so
	126	$test -f "$xxx" && eval $libscheck
	127	$test -f "$xxx" && libstyle=shared
4c42341b	128	fi
4ee071c7 JH	129	if test ! -f "$xxx"; then
	130	xxx=$thisdir/lib$thislib$_a
	131	$test -f "$xxx" && eval $libscheck
	132	$test -f "$xxx" && libstyle=static
	133	fi
	134	if test ! -f "$xxx"; then
	135	xxx=$thisdir/$thislib$_a
	136	$test -f "$xxx" && eval $libscheck
	137	$test -f "$xxx" && libstyle=static
	138	fi
	139	if test ! -f "$xxx"; then
	140	xxx=$thisdir/lib${thislib}_s$_a
	141	$test -f "$xxx" && eval $libscheck
	142	$test -f "$xxx" && libstyle=static
e4e826e0	143	$test -f "$xxx" && thislib=${thislib}_s
4ee071c7 JH	144	fi
	145	if test ! -f "$xxx"; then
	146	xxx=$thisdir/Slib$thislib$_a
	147	$test -f "$xxx" && eval $libscheck
	148	$test -f "$xxx" && libstyle=static
	149	fi
	150	if $test -f "$xxx"; then
508a21cd	151	case "$libstyle" in
4ee071c7 JH	152	shared) echo "Found -l$thislib (shared)." ;;
	153	static) echo "Found -l$thislib." ;;
	154	*) echo "Found -l$thislib ($libstyle)." ;;
508a21cd	155	esac
959f3c4c JH	156	case " $dflt " in
959f3c4c JH	157	"-l$thislib ");;
4ee071c7	158	*) dflt="$dflt -l$thislib"
d088635c JH	159	libsfound="$libsfound $xxx"
	160	yyy=`basename $xxx`
	161	libsfiles="$libsfiles $yyy"
70ffff07	162	yyy=`echo $xxx\|$sed -e "s%/$yyy\\$%%"`
d088635c JH	163	case " $libsdirs " in
	164	" $yyy ") ;;
	165	*) libsdirs="$libsdirs $yyy" ;;
	166	esac
	167	;;
959f3c4c	168	esac
4ee071c7	169	break
4c42341b	170	fi
4ee071c7 JH	171	done
	172	if $test ! -f "$xxx"; then
	173	echo "No -l$thislib."
959f3c4c JH	174	fi
	175	done
	176	set X $dflt
	177	shift
	178	dflt="$*"
	179	case "$libs" in
	180	'') dflt="$dflt";;
	181	*) dflt="$libs";;
	182	esac
	183	case "$dflt" in
	184	' '\|'') dflt='none';;
	185	esac
	186
	187	$cat <<EOM
	188
	189	In order to compile $package on your machine, a number of libraries
	190	are usually needed. Include any other special libraries here as well.
	191	Say "none" for none. The default list is almost always right.
	192	EOM
	193
	194	echo " "
	195	rp="What libraries to use?"
	196	. ./myread
	197	case "$ans" in
	198	none) libs=' ';;
	199	*) libs="$ans";;
	200	esac
	201