1 dbd7b9a9 2003-11-23 devnull #!/bin/sh
  2 dbd7b9a9 2003-11-23 devnull 
  3 ead3e311 2005-01-04 devnull libsl=""
  4 ead3e311 2005-01-04 devnull 
  5 3d637e16 2005-01-07 devnull doautolib=true
  6 3d637e16 2005-01-07 devnull verbose=false
  7 ead3e311 2005-01-04 devnull 
  8 ead3e311 2005-01-04 devnull if [ "x$1" = "x-l" ]
  9 ead3e311 2005-01-04 devnull then
 10 ead3e311 2005-01-04 devnull 	shift
 11 3d637e16 2005-01-07 devnull 	doautolib=false
 12 ead3e311 2005-01-04 devnull elif [ "x$1" = "x-v" ]
 13 ead3e311 2005-01-04 devnull then
 14 ead3e311 2005-01-04 devnull 	shift
 15 3d637e16 2005-01-07 devnull 	verbose=true
 16 ead3e311 2005-01-04 devnull fi
 17 ead3e311 2005-01-04 devnull 
 18 724b43e6 2005-01-07 devnull target=a.out
 19 724b43e6 2005-01-07 devnull if [ "x$1" = "x-o" ]
 20 724b43e6 2005-01-07 devnull then
 21 724b43e6 2005-01-07 devnull 	target=$2
 22 724b43e6 2005-01-07 devnull fi
 23 724b43e6 2005-01-07 devnull 
 24 3d637e16 2005-01-07 devnull if $doautolib
 25 ead3e311 2005-01-04 devnull then
 26 ead3e311 2005-01-04 devnull 	ofiles=""
 27 ead3e311 2005-01-04 devnull 	for i
 28 ead3e311 2005-01-04 devnull 	do
 29 ead3e311 2005-01-04 devnull 		case "$i" in
 30 190857f9 2005-01-07 devnull 		*.o)
 31 ead3e311 2005-01-04 devnull 			ofiles="$ofiles $i"
 32 ead3e311 2005-01-04 devnull 			;;
 33 ead3e311 2005-01-04 devnull 		esac
 34 ead3e311 2005-01-04 devnull 	done
 35 ead3e311 2005-01-04 devnull 	
 36 ead3e311 2005-01-04 devnull 	# echo "ofiles $ofiles"
 37 ead3e311 2005-01-04 devnull 	autolibs=""
 38 ead3e311 2005-01-04 devnull 	if [ "x$ofiles" != "x" ]
 39 ead3e311 2005-01-04 devnull 	then
 40 3d637e16 2005-01-07 devnull 		a=`
 41 ead3e311 2005-01-04 devnull 			nm $ofiles |
 42 ead3e311 2005-01-04 devnull 			grep '__p9l_autolib_[a-zA-Z0-9+-]*$' |
 43 190857f9 2005-01-07 devnull 			sed 's/.*__p9l_autolib_//' |
 44 ead3e311 2005-01-04 devnull 			sort -u
 45 ead3e311 2005-01-04 devnull 		`
 46 3d637e16 2005-01-07 devnull 		for i in $a
 47 3d637e16 2005-01-07 devnull 		do
 48 3d637e16 2005-01-07 devnull 			autolibs="$autolibs $i"
 49 3d637e16 2005-01-07 devnull 			eval "need$i=true"
 50 3d637e16 2005-01-07 devnull 		done
 51 ead3e311 2005-01-04 devnull 	fi
 52 3d637e16 2005-01-07 devnull 
 53 3d637e16 2005-01-07 devnull 	# fetch dependencies out of libraries
 54 3d637e16 2005-01-07 devnull 	workq="$autolibs"
 55 3d637e16 2005-01-07 devnull 	while [ "x$workq" != "x" ]
 56 ead3e311 2005-01-04 devnull 	do
 57 3d637e16 2005-01-07 devnull 		w="$workq"
 58 3d637e16 2005-01-07 devnull 		workq=""
 59 3d637e16 2005-01-07 devnull 		for i in $w
 60 3d637e16 2005-01-07 devnull 		do
 61 3d637e16 2005-01-07 devnull 			a=`
 62 3d637e16 2005-01-07 devnull 				nm $PLAN9/lib/lib$i.a |
 63 3d637e16 2005-01-07 devnull 				grep '__p9l_autolib_[a-zA-Z0-9+-]*$' |
 64 3d637e16 2005-01-07 devnull 				sed 's/.*__p9l_autolib_//' |
 65 3d637e16 2005-01-07 devnull 				sort -u
 66 3d637e16 2005-01-07 devnull 			`
 67 3d637e16 2005-01-07 devnull 			okayfn="true"
 68 3d637e16 2005-01-07 devnull 			for j in $a
 69 3d637e16 2005-01-07 devnull 			do
 70 3d637e16 2005-01-07 devnull 				if eval "[ x\$need$j = x ]"
 71 3d637e16 2005-01-07 devnull 				then
 72 3d637e16 2005-01-07 devnull 					autolibs="$autolibs $j"
 73 3d637e16 2005-01-07 devnull 					workq="$workq $j"
 74 3d637e16 2005-01-07 devnull 					eval "need$j=true"
 75 3d637e16 2005-01-07 devnull 				fi
 76 3d637e16 2005-01-07 devnull 				if [ $j != $i ]
 77 3d637e16 2005-01-07 devnull 				then
 78 3d637e16 2005-01-07 devnull 					okayfn="$okayfn && have$j"
 79 3d637e16 2005-01-07 devnull 				fi
 80 3d637e16 2005-01-07 devnull 			done
 81 3d637e16 2005-01-07 devnull 			# echo "can$i: $okayfn"
 82 3d637e16 2005-01-07 devnull 			eval "can$i() { $okayfn; }"
 83 3d637e16 2005-01-07 devnull 		done
 84 ead3e311 2005-01-04 devnull 	done
 85 3d637e16 2005-01-07 devnull 	if $verbose
 86 3d637e16 2005-01-07 devnull 	then
 87 3d637e16 2005-01-07 devnull 		echo "autolibs $autolibs"
 88 3d637e16 2005-01-07 devnull 	fi
 89 3d637e16 2005-01-07 devnull 
 90 ead3e311 2005-01-04 devnull 	for i in $autolibs
 91 ead3e311 2005-01-04 devnull 	do
 92 3d637e16 2005-01-07 devnull 		eval "have$i() { false; }"
 93 ead3e311 2005-01-04 devnull 	done
 94 c8b6342d 2005-01-13 devnull 	havethread() { false; }
 95 3d637e16 2005-01-07 devnull 
 96 3d637e16 2005-01-07 devnull 	# now find correct order
 97 3d637e16 2005-01-07 devnull 	libsl=""
 98 3d637e16 2005-01-07 devnull 	while [ "x$autolibs" != x ]
 99 ead3e311 2005-01-04 devnull 	do
100 3d637e16 2005-01-07 devnull 		stillneed=""
101 3d637e16 2005-01-07 devnull 		didnothing=true
102 3d637e16 2005-01-07 devnull 		for i in $autolibs
103 3d637e16 2005-01-07 devnull 		do
104 3d637e16 2005-01-07 devnull 			if eval "can$i"
105 3d637e16 2005-01-07 devnull 			then
106 3d637e16 2005-01-07 devnull 				libsl="-l$i $libsl"
107 3d637e16 2005-01-07 devnull 				eval "have$i() { true; }"
108 3d637e16 2005-01-07 devnull 				didnothing=false
109 3d637e16 2005-01-07 devnull 			else
110 3d637e16 2005-01-07 devnull 				stillneed="$stillneed $i"
111 3d637e16 2005-01-07 devnull 			fi
112 3d637e16 2005-01-07 devnull 		done
113 3d637e16 2005-01-07 devnull 		# break cycle by setting the last library on the list
114 3d637e16 2005-01-07 devnull 		# to have no dependencies
115 3d637e16 2005-01-07 devnull 		if $didnothing
116 ead3e311 2005-01-04 devnull 		then
117 3d637e16 2005-01-07 devnull 			j="xxx"
118 3d637e16 2005-01-07 devnull 			for i in $autolibs
119 3d637e16 2005-01-07 devnull 			do
120 3d637e16 2005-01-07 devnull 				j=$i
121 3d637e16 2005-01-07 devnull 			done
122 3d637e16 2005-01-07 devnull 			echo "dependency cycle: $autolibs; breaking with $j"
123 3d637e16 2005-01-07 devnull 			eval "can$j() { true; }"
124 ead3e311 2005-01-04 devnull 		fi
125 3d637e16 2005-01-07 devnull 		autolibs="$stillneed"
126 ead3e311 2005-01-04 devnull 	done
127 3d637e16 2005-01-07 devnull 	if $verbose
128 3d637e16 2005-01-07 devnull 	then
129 3d637e16 2005-01-07 devnull 		echo "liborder $libsl"
130 3d637e16 2005-01-07 devnull 	fi
131 ead3e311 2005-01-04 devnull 	libsl="$libsl -l9"
132 3d637e16 2005-01-07 devnull 
133 c8b6342d 2005-01-13 devnull 	# cycle: lib9 expects p9main, which is defined in libthread.  oops.
134 c8b6342d 2005-01-13 devnull 	if $havethread
135 c8b6342d 2005-01-13 devnull 	then
136 c8b6342d 2005-01-13 devnull 		libsl="$libsl -lthread"
137 c8b6342d 2005-01-13 devnull 	fi
138 c8b6342d 2005-01-13 devnull 
139 3d637e16 2005-01-07 devnull 	if [ "x$needdraw" = xtrue ]
140 ead3e311 2005-01-04 devnull 	then
141 ead3e311 2005-01-04 devnull 		if [ "x$X11" = "x" ]
142 ead3e311 2005-01-04 devnull 		then
143 ead3e311 2005-01-04 devnull 			X11=/usr/X11R6
144 ead3e311 2005-01-04 devnull 		fi
145 ead3e311 2005-01-04 devnull 		libsl="$libsl -L$X11/lib -lX11"
146 ead3e311 2005-01-04 devnull 	fi
147 ead3e311 2005-01-04 devnull fi
148 ead3e311 2005-01-04 devnull 
149 2d8fd46b 2004-03-26 devnull extralibs="-lm"
150 8f314994 2004-03-02 devnull tag="${SYSNAME:-`uname`}-${OBJTYPE:-`uname -m`}"
151 dbd7b9a9 2003-11-23 devnull case "$tag" in
152 7d0dbb31 2005-01-07 devnull *OpenBSD*)
153 7d0dbb31 2005-01-07 devnull 	ld=gcc
154 7d0dbb31 2005-01-07 devnull 	extralibs="$extralibs -lutil -lpthread"
155 7d0dbb31 2005-01-07 devnull 	;;
156 7d0dbb31 2005-01-07 devnull *FreeBSD*)
157 7d0dbb31 2005-01-07 devnull 	ld=gcc
158 7d0dbb31 2005-01-07 devnull 	extralibs="$extralibs -lutil"
159 7d0dbb31 2005-01-07 devnull 	case "`uname -r`" in
160 7d0dbb31 2005-01-07 devnull 	[5-9].*)
161 7d0dbb31 2005-01-07 devnull 		extralibs="$extralibs -lpthread"
162 cb27443a 2004-03-25 devnull 		;;
163 7d0dbb31 2005-01-07 devnull 	esac
164 7d0dbb31 2005-01-07 devnull 	;;
165 7d0dbb31 2005-01-07 devnull *BSD*)
166 7d0dbb31 2005-01-07 devnull 	ld=gcc
167 7d0dbb31 2005-01-07 devnull 	extralibs="$extralibs -lutil"
168 7d0dbb31 2005-01-07 devnull 	;;
169 7d0dbb31 2005-01-07 devnull *Linux*)
170 7d0dbb31 2005-01-07 devnull 	ld=gcc
171 7d0dbb31 2005-01-07 devnull 	extralibs="$extralibs -lutil"
172 7d0dbb31 2005-01-07 devnull 	case "`uname -r`" in
173 7d0dbb31 2005-01-07 devnull 	2.6.*)
174 7d0dbb31 2005-01-07 devnull 		extralibs="$extralibs -lpthread"
175 2d8fd46b 2004-03-26 devnull 		;;
176 7d0dbb31 2005-01-07 devnull 	esac
177 7d0dbb31 2005-01-07 devnull 	;;
178 7d0dbb31 2005-01-07 devnull *Darwin*)
179 7d0dbb31 2005-01-07 devnull 	ld=gcc
180 7d0dbb31 2005-01-07 devnull 	;;
181 7d0dbb31 2005-01-07 devnull *SunOS*)
182 7d0dbb31 2005-01-07 devnull 	ld="${CC9:-cc} -g"
183 7d0dbb31 2005-01-07 devnull 	extralibs="$extralibs -lrt -lpthread -lsocket -lnsl"
184 7d0dbb31 2005-01-07 devnull 	# Record paths to shared libraries to avoid needing LD_LIBRARY_PATH 
185 7d0dbb31 2005-01-07 devnull 	for i in "$@"
186 7d0dbb31 2005-01-07 devnull 	do
187 7d0dbb31 2005-01-07 devnull 		case "$i" in
188 7d0dbb31 2005-01-07 devnull 		-L*)
189 7d0dbb31 2005-01-07 devnull 			s=`echo $i | sed 's/-L/-R/'`
190 7d0dbb31 2005-01-07 devnull 			extralibs="$extralibs $s"
191 282c88f9 2004-09-17 devnull 			;;
192 282c88f9 2004-09-17 devnull 		esac
193 7d0dbb31 2005-01-07 devnull 	done
194 7d0dbb31 2005-01-07 devnull 	;;
195 dbd7b9a9 2003-11-23 devnull *)
196 dbd7b9a9 2003-11-23 devnull 	echo do not know how to link on "$tag" 1>&2
197 dbd7b9a9 2003-11-23 devnull 	exit 1
198 dbd7b9a9 2003-11-23 devnull esac
199 dbd7b9a9 2003-11-23 devnull 
200 3d637e16 2005-01-07 devnull if $verbose
201 ead3e311 2005-01-04 devnull then
202 ead3e311 2005-01-04 devnull 	echo $ld -L$PLAN9/lib "$@" $libsl $extralibs
203 ead3e311 2005-01-04 devnull fi
204 c8b6342d 2005-01-13 devnull if $ld -L$PLAN9/lib "$@" $libsl $extralibs
205 8953da37 2005-01-07 devnull then
206 c8b6342d 2005-01-13 devnull 	exit 0
207 c8b6342d 2005-01-13 devnull else
208 724b43e6 2005-01-07 devnull 	rm -f $target
209 724b43e6 2005-01-07 devnull 	exit 1
210 8953da37 2005-01-07 devnull fi
211 c8b6342d 2005-01-13 devnull