summaryrefslogtreecommitdiffstats
path: root/bin/mklib
blob: 510ac915c8458bbcd3ffa919362cad43839832a1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
#!/bin/sh

# Make a shared library.
# This script should be useful for projects other than Mesa.
# Improvements/fixes are welcome.


# Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
# BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


# Clear CDPATH as the 'cd' command will echo stuff
# to stdout if it is set
unset CDPATH

# Given a list of files, look for .a archives and unpack them.
# Return the original list of files minus the .a files plus the unpacked files.
# first param:  name of a temp directory (to be deleted when finished)
# remaining params:  list of .o and .a files
expand_archives() {
    DIR=$1
    shift
    FILES=$@
    NEWFILES=""
    ORIG_DIR=`pwd`
    mkdir -p "$DIR"
    cd "$DIR"
    for FILE in $FILES ; do
        case $FILE in
            *.a)
                # extract the .o files from this .a archive
                case $FILE in
                    /*) ;;
                    *)  FILE="$ORIG_DIR/$FILE" ;;
                esac
                MEMBERS=`ar t $FILE`
                ar x $FILE
                for MEMBER in $MEMBERS ; do
                    NEWFILES="$NEWFILES $DIR/$MEMBER"
                done
                ;;
            *)
                # other file type, just add to list
                NEWFILES="$NEWFILES $FILE"
                ;;
        esac
    done
    cd "$ORIG_DIR"
    echo $NEWFILES
}


# Make static library with 'ar'
# params:
#    options to ar
#    1 or 0 to indicate if ranlib should be run
#    libname to make
#    list of object files
# Return name of library we made
# Example: "make_ar_static_lib -ru 1 libfoo.a foo.o bar.o"
make_ar_static_lib() {
    OPTS=$1
    shift;
    RANLIB=$1
    shift;
    LIBNAME=$1
    shift;
    OBJECTS=$@

    # remove existing lib, if present
    rm -f ${LIBNAME}

    # make static lib
    ar ${OPTS} ${LIBNAME} ${OBJECTS}

    # run ranlib
    if [ ${RANLIB} = 1 ] ; then
        ranlib ${LIBNAME}
    fi

    echo ${LIBNAME}
}


# Print usage info.
usage() {
    echo 'Usage: mklib [options] objects'
    echo 'Create a shared library from object files.'
    echo '  -o LIBRARY    specifies the name of the resulting library, without'
    echo '                the leading "lib" or any suffix.'
    echo '                (eg: "-o GL" might result in "libGL.so" being made)'
    echo '  -major N      specifies major version number (default is 1)'
    echo '  -minor N      specifies minor version number (default is 0)'
    echo '  -patch N      specifies patch version number (default is 0)'
    echo '  -lLIBRARY     specifies a dependency on LIBRARY'
    echo '  -LDIR         search in DIR for library dependencies at build time'
    echo '  -RDIR         search in DIR for library dependencies at run time'
    echo '  -linker L     explicity specify the linker program to use (eg: gcc, g++)'
    echo '                Not observed on all systems at this time.'
    echo '  -ldflags OPT  specify any additional linker flags in OPT'
    echo '  -cplusplus    link with C++ runtime'
    echo '  -static       make a static library (default is dynamic/shared)'
    echo '  -dlopen       make a shared library suitable for dynamic loading'
    echo '  -install DIR  put resulting library file(s) in DIR'
    echo '  -arch ARCH    override using `uname` to determine host system'
    echo '  -archopt OPT  specify an extra achitecture-specific option OPT'
    echo '  -altopts OPTS alternate options to override all others'
    echo "  -noprefix     don't prefix library name with 'lib' nor add any suffix"
    echo '  -exports FILE only export the symbols listed in FILE'
    echo '  -id NAME      Sets the id of the dylib (Darwin)'
    echo '  -h, --help    display this information and exit'
}


#
# Option defaults
#
LIBNAME=""
MAJOR=1
MINOR=0
PATCH=""
DEPS=""
LINK=""
LDFLAGS=""
CPLUSPLUS=0
STATIC=0
DLOPEN=0
INSTALLDIR="."
ARCH="auto"
ARCHOPT=""
NOPREFIX=0
EXPORTS=""
ID=""

#
# Parse arguments
#
while true
do
    case $1 in
	'-h' | '--help')
	    usage
	    exit 1
	    ;;
	'-o')
	    shift 1;
	    LIBNAME=$1
	    ;;
	'-major')
	    shift 1;
	    MAJOR=$1
	    ;;
	'-minor')
	    shift 1;
	    MINOR=$1
	    ;;
	'-patch')
	    shift 1;
	    PATCH=$1
	    ;;
	'-linker')
	    shift 1;
	    LINK=$1
	    ;;
	'-ldflags')
	    shift 1;
	    LDFLAGS=$1
	    ;;
	-l*)
	    DEPS="$DEPS $1"
	    ;;
	-L*)
	    DEPS="$DEPS $1"
	    ;;
	-R*)
	    DEPS="$DEPS $1"
	    ;;
	-Wl*)
            DEPS="$DEPS $1"
            ;;
	-pthread)
	    # this is a special case (see bugzilla 10876)
	    DEPS="$DEPS $1"
	    ;;
	'-pthread')
	    DEPS="$DEPS -pthread"
	    ;;
	'-cplusplus')
	    CPLUSPLUS=1
	    ;;
	'-static')
	    STATIC=1
	    ;;
	'-dlopen')
	    DLOPEN=1
	    ;;
	'-install')
	    shift 1;
	    INSTALLDIR=$1
	    ;;
	'-arch')
	    shift 1;
	    ARCH=$1
	    ;;
	'-archopt')
	    shift 1;
	    ARCHOPT=$1
	    ;;
	'-altopts')
            shift 1;
            ALTOPTS=$1
            ;;
	'-noprefix')
	    NOPREFIX=1
	    ;;
	'-exports')
	    shift 1;
	    EXPORTS=$1
	    ;;
	'-id')
	    shift 1;
	    ID=$1
	    ;;
	-*)
	    echo "mklib: Unknown option: " $1 ;
	    exit 1
	    ;;
	*)
	    # This should be the first object file, stop parsing
	    break
    esac
    shift 1
done
OBJECTS=$@


if [ ${ARCH} = "auto" ] ; then
    ARCH=`uname`
fi


if [ $STATIC = 1 ]; then
    # filter out linker options inside object list
    NEWOBJECTS=""
    for OBJ in $OBJECTS ; do
	case $OBJ in
	    -Wl,*|-L*|-l*)
		echo "mklib: warning: ignoring $OBJ for static library"
		;;
	    *)
		NEWOBJECTS="$NEWOBJECTS $OBJ"
		;;
	esac
    done
    OBJECTS=$NEWOBJECTS
fi


#
# Error checking
#
if [ "x${LIBNAME}" = "x" ] ; then
    echo "mklib: Error: no library name specified (-h for help)"
    exit 1
fi
if [ "x${OBJECTS}" = "x" ] ; then
    echo "mklib: Error: no object files specified (-h for help)"
    exit 1
fi


#
# Debugging info
#
if [  ]  ; then
    echo "-----------------"
    echo ARCH is $ARCH
    echo LIBNAME is $LIBNAME
    echo MAJOR is $MAJOR
    echo MINOR is $MINOR
    echo PATCH is $PATCH
    echo DEPS are $DEPS
    echo "EXPORTS in" $EXPORTS
    echo ID is $ID
    echo "-----------------"
fi


#
# OK, make the library now
#
case $ARCH in

    'Linux' | 'OpenBSD' | 'DragonFly' | 'GNU' | GNU/* | 'NetBSD')
	# we assume gcc

	if [ "x$LINK" = "x" ] ; then
	    # -linker was not specified so set default link command now
            if [ $CPLUSPLUS = 1 ] ; then
                LINK=g++
            else
                LINK=gcc
            fi
	fi

	if [ $NOPREFIX = 1 ] ; then
	    # No "lib" or ".so" part
	    echo "mklib: Making" $ARCH "shared library: " ${LIBNAME}
	    case $ARCH in 'Linux' | 'GNU' | GNU/*)
		OPTS="-Xlinker -Bsymbolic -shared"
	    ;;
	    *)
		OPTS="-shared"
	    ;;
	    esac

	    # Check if objects are 32-bit and we're running in 64-bit
	    # environment.  If so, pass -m32 flag to linker.
	    set ${OBJECTS}
	    ABI32=`file $1 | grep 32-bit`
	    if [ "${ABI32}" -a `uname -m` = "x86_64" ] ; then
		OPTS="-m32 ${OPTS}"
	    fi

            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi

            rm -f ${LIBNAME}
            # make lib
            ${LINK} ${OPTS} ${LDFLAGS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
            # finish up
            FINAL_LIBS="${LIBNAME}"
        elif [ $STATIC = 1 ] ; then
	    # make a static .a library
            LIBNAME="lib${LIBNAME}.a"     # prefix with "lib", suffix with ".a"
            echo "mklib: Making" $ARCH "static library: " ${LIBNAME}
            OPTS="-ru"
            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi

	    # expand .a into .o files
	    NEW_OBJECTS=`expand_archives ${LIBNAME}.obj $OBJECTS`

            # make static lib
	    FINAL_LIBS=`make_ar_static_lib ${OPTS} 1 ${LIBNAME} ${NEW_OBJECTS}`

	    # remove temporary extracted .o files
	    rm -rf ${LIBNAME}.obj
        else
	    # make dynamic library
	    LIBNAME="lib${LIBNAME}"     # prefix with "lib"
	    case $ARCH in 'Linux' | 'GNU' | GNU/*)
		OPTS="-Xlinker -Bsymbolic -shared -Wl,-soname,${LIBNAME}.so.${MAJOR}"
	    ;;
	    *)
		OPTS="-shared -Wl,-soname,${LIBNAME}.so.${MAJOR}"
	    ;;
	    esac
	    if [ $EXPORTS ] ; then
		#OPTS="${OPTS} -Xlinker --retain-symbols-file ${EXPORTS}"
		# Make the 'exptmp' file for --version-script option
		echo "{" > exptmp
		echo "global:" >> exptmp
		sed 's/$/;/' ${EXPORTS} >> exptmp
		echo "local:" >> exptmp
		echo "*;" >> exptmp
		echo "};" >> exptmp
		OPTS="${OPTS} -Xlinker --version-script=exptmp"
		# exptmp is removed below
	    fi

	    # Check if objects are 32-bit and we're running in 64-bit
	    # environment.  If so, pass -m32 flag to linker.
	    set ${OBJECTS}
	    ABI32=`file $1 | grep 32-bit`
	    if [ "${ABI32}" -a `uname -m` = "x86_64" ] ; then
		OPTS="-m32 ${OPTS}"
	    fi
            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi

	    if [ x${PATCH} = "x" ] ; then
		VERSION="${MAJOR}.${MINOR}"
	    else
		VERSION="${MAJOR}.${MINOR}.${PATCH}"
	    fi

            echo "mklib: Making" $ARCH "shared library: " ${LIBNAME}.so.${VERSION}

            # rm any old libs
            rm -f ${LIBNAME}.so.${VERSION}
            rm -f ${LIBNAME}.so.${MAJOR}
            rm -f ${LIBNAME}.so

            # make lib
            ${LINK} ${OPTS} ${LDFLAGS} -o ${LIBNAME}.so.${VERSION} ${OBJECTS} ${DEPS}
            # make usual symlinks
            ln -s ${LIBNAME}.so.${VERSION} ${LIBNAME}.so.${MAJOR}
            ln -s ${LIBNAME}.so.${MAJOR} ${LIBNAME}.so
            # finish up
            FINAL_LIBS="${LIBNAME}.so.${VERSION} ${LIBNAME}.so.${MAJOR} ${LIBNAME}.so"
#	    rm -f exptmp
        fi
	;;

    'SunOS')
        if [ $STATIC = 1 ] ; then
	    LIBNAME="lib${LIBNAME}.a"
	    echo "mklib: Making SunOS static library: " ${LIBNAME}
	    FINAL_LIBS=`make_ar_static_lib -ruc 0 ${LIBNAME} ${OBJECTS}`
	else
	    if [ $NOPREFIX = 0 ] ; then
		LIBNAME="lib${LIBNAME}.so"
	    fi
	    echo "mklib: Making SunOS shared library: " ${LIBNAME}

	    if [ "x$LINK" = "x" ] ; then
		# -linker was not specified, choose default linker now
		if [ $CPLUSPLUS = 1 ] ; then
		    # determine linker and options for C++ code
		    if [ `which c++` ] ; then
			# use Sun c++
			LINK="c++"
		    elif [ `type g++` ] ; then
			# use g++
			LINK="g++"
		    else
			echo "mklib: warning: can't find C++ compiler, trying CC."
			LINK="CC"
		    fi
		else
		    # use native Sun linker for C code
		    LINK="ld"
		fi
	    fi

	    # linker options
	    if [ ${LINK} = "ld" -o ${LINK} = "cc" -o ${LINK} = "CC" ] ; then
		# SunOS tools, -G to make shared libs
		OPTS="-G"
	    else
		# gcc linker
		# Check if objects are 32-bit and we're running in 64-bit
		# environment.  If so, pass -m32 flag to linker.
		set ${OBJECTS}
		ABI32=`file $1 | grep 32-bit`
		if [ "${ABI32}" ] ; then
		    OPTS="-m32 -shared -Wl,-Bdynamic"
		else
		    OPTS="-m64 -shared -Wl,-Bdynamic"
		fi
	    fi

	    # If using Sun C++ compiler, need to tell it not to add runpaths
	    # that are specific to the build machine
	    if [ ${LINK} = "CC" ] ; then
		OPTS="${OPTS} -norunpath"
	    fi

	    # Solaris linker requires explicitly listing the Standard C & C++
	    # libraries in the link path when building shared objects
	    if [ ${LINK} = "CC" ] ; then
		DEPS="${DEPS} -lCrun"
	    fi
	    DEPS="${DEPS} -lc"

	    if [ $EXPORTS ] ; then
		# Make the 'mapfile.scope' linker mapfile
		echo "{" > mapfile.scope
		echo "global:" >> mapfile.scope
		sed 's/$/;/' ${EXPORTS} >> mapfile.scope
		echo "local:" >> mapfile.scope
		echo "    *;" >> mapfile.scope
		echo "};" >> mapfile.scope
		OPTS="${OPTS} -Wl,-Mmapfile.scope"
	    fi

	    # Check if objects are 64-bit
	    # file says: ELF 64-bit MSB relocatable SPARCV9 Version 1
	    set ${OBJECTS}
	    if [ ${LINK} = "cc" -o ${LINK} = "CC" ] ; then
		ABI64=`file $1 | grep "ELF 64-bit"`
		if [ "${ABI64}" ] ; then
		    case `uname -p` in
			sparc)	    OPTS="${OPTS} -xarch=v9" ;;
			i386)	    OPTS="${OPTS} -xarch=amd64" ;;
		    esac
		fi
	    fi
            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi

	    # for debug:
	    #echo "mklib: linker is" ${LINK} ${OPTS}
	    if [ $NOPREFIX = 1 ] ; then
		rm -f ${LIBNAME}
		${LINK} ${OPTS} ${LDFLAGS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
		FINAL_LIBS="${LIBNAME}"
	    else
		rm -f ${LIBNAME}.${MAJOR} ${LIBNAME}
		${LINK} ${OPTS} ${LDFLAGS} -o ${LIBNAME}.${MAJOR} -h ${LIBNAME}.${MAJOR} ${OBJECTS} ${DEPS}
		ln -s ${LIBNAME}.${MAJOR} ${LIBNAME}
		FINAL_LIBS="${LIBNAME}.${MAJOR} ${LIBNAME}"
	    fi
	fi
	;;

    'FreeBSD')
	# we assume gcc

	if [ "x$LINK" = "x" ] ; then
	    # -linker was not specified so set default link command now
            if [ $CPLUSPLUS = 1 ] ; then
                LINK=g++
            else
                LINK=gcc
            fi
	fi

	if [ $NOPREFIX = 1 ] ; then
	    # No "lib" or ".so" part
	    echo "mklib: Making FreeBSD shared library: " ${LIBNAME}
	    OPTS="-shared"
            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi
	    rm -f ${LIBNAME}
	    ${LINK} ${OPTS} ${LDFLAGS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
	    FINAL_LIBS=${LIBNAME}
        elif [ $STATIC = 1 ] ; then
	    # make a static .a library
	    STLIB="lib${LIBNAME}.a"
	    echo "mklib: Making FreeBSD static library: " ${STLIB}

	    # expand .a into .o files
	    NEW_OBJECTS=`expand_archives ${STLIB}.obj $OBJECTS`

	    FINAL_LIBS=`make_ar_static_lib cq 1 ${STLIB} ${NEW_OBJECTS}`

	    # remove temporary extracted .o files
	    rm -rf ${STLIB}.obj
	else
	    # make dynamic library
	    SHLIB="lib${LIBNAME}.so.${MAJOR}"
	    OPTS="-shared -Wl,-soname,${SHLIB}"
            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi
	    echo "mklib: Making FreeBSD shared library: " ${SHLIB}
	    rm -f ${SHLIB}
	    ${LINK} ${OPTS} ${LDFLAGS} -o ${SHLIB} ${OBJECTS} ${DEPS}
	    ln -sf ${SHLIB} "lib${LIBNAME}.so"
	    FINAL_LIBS="${SHLIB} lib${LIBNAME}.so"
	fi
	;;

    'IRIX' | 'IRIX64')
        if [ $STATIC = 1 ] ; then
	    LIBNAME="lib${LIBNAME}.a"
	    FINAL_LIBS=`make_ar_static_lib rc 0 ${LIBNAME} ${OBJECTS}`
	else
	    LIBNAME="lib${LIBNAME}.so"  # prefix with "lib", suffix with ".so"

	    # examine first object to determine ABI
    	    set ${OBJECTS}
	    ABI_O32=`file $1 | grep 'ELF 32-bit'`
	    ABI_N32=`file $1 | grep 'ELF N32'`
	    ABI_N64=`file $1 | grep 'ELF 64-bit'`
	    if [ "${ABI_O32}" ] ; then
		OPTS="-32 -shared -all"
		ABI="o32-bit"
	    elif [ "${ABI_N32}" ] ; then
		OPTS="-n32 -shared -all"
		ABI="n32-bit"
	    elif [ "${ABI_N64}" ] ; then
		OPTS="-64 -shared -all"
		ABI="64-bit"
	    else
		echo "Error: Unexpected IRIX ABI!"
		exit 1
	    fi

            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi

	    if [ $CPLUSPLUS = 1 ] ; then
		LINK="CC"
	    else
		LINK="ld"
	    fi

	    echo "mklib: Making IRIX " ${ABI} " shared library: " ${LIBNAME}
	    ${LINK} ${OPTS} ${LDFLAGS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
	    FINAL_LIBS=${LIBNAME}
	fi
	;;

    'linux-cygwin')
	LIBNAME="lib${LIBNAME}.a"
	echo "mklib: Making linux-cygwin library: " ${LIBNAME}
	rm -f ${LIBNAME}
	gnuwin32ar ruv ${LIBNAME} ${OBJECTS}
	FINAL_LIBS=${LIBNAME}
	;;

    'HP-UX')
        if [ $STATIC = 1 ] ; then
	    LIBNAME="lib${LIBNAME}.a"
	    echo "mklib: Making HP-UX static library: " ${LIBNAME}
    	    FINAL_LIBS=`make_ar_static_lib -ruv 0 ${LIBNAME} ${OBJECTS}`
	else
            # HP uses a .2 for their current GL/GLU libraries
	    if [ ${LIBNAME} = "GL" -o ${LIBNAME} = "GLU" ] ; then
	       MAJOR=2
	    fi
	    RUNLIB="lib${LIBNAME}.${MAJOR}"
	    DEVLIB="lib${LIBNAME}.sl"
	    echo "mklib: Making HP-UX shared library: " ${RUNLIB} ${DEVLIB}
	    ld -b -o ${RUNLIB} +b ${RUNLIB} ${OBJECTS} ${DEPS}
	    ln -s ${RUNLIB} ${DEVLIB}
	    FINAL_LIBS="${RUNLIB} ${DEVLIB}"
	fi
	;;

    'AIX' )
	# examine first object to determine ABI
    	set ${OBJECTS}
	ABI_64=`file $1 | grep '64-bit'`
	if [ "${ABI_64}" ] ; then
	    X64="-X64"
	    Q64="-q64"
	    OFILE=shr_64.o
	else
	    OFILE=shr.o  #Want to be consistent with the IBM libGL.a
	fi

	if [ $STATIC = 1 ] ; then
	    LIBNAME="lib${LIBNAME}.a"
	    echo "mklib: Making AIX static library: " ${LIBNAME}
    	    FINAL_LIBS=`make_ar_static_lib -ruv 0 ${LIBNAME} ${OBJECTS}`
	else
	    EXPFILE="lib${LIBNAME}.exp"
	    LIBNAME="lib${LIBNAME}.a"  # shared objects are still stored in the .a libraries
	    OPTS="-bE:${EXPFILE} -bM:SRE -bnoentry ${Q64}"
	    rm -f ${EXPFILE} ${OFILE}
	    NM="/bin/nm -eC ${X64}"
	    echo "#! /usr/lib/${LIBNAME}" > ${EXPFILE}
	    ${NM} ${OBJECTS} | awk '{
	    if ((($2 == "T") || ($2 == "D") || ($2 == "B")) \
	    && ( substr($1,1,1) != ".")) {
		    if (substr ($1, 1, 7) != "__sinit" &&
			    substr ($1, 1, 7) != "__sterm") {
			    if (substr ($1, 1, 5) == "__tf1")
				print (substr ($1, 7))
			    else if (substr ($1, 1, 5) == "__tf9")
				print (substr ($1, 15))
			    else
				print $1
			}
		}
	    }' | sort -u >> ${EXPFILE}

            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi

            # On AIX a shared library is linked differently when
            # you want to dlopen the file
	    if [ $DLOPEN = "1" ] ; then
		cc -G ${OPTS} ${LDFLAGS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
	    else
		cc ${OPTS} ${LDFLAGS} -o ${OFILE} ${OBJECTS} ${DEPS}
		ar ${X64} -r ${LIBNAME} ${OFILE}
	    fi

            FINAL_LIBS="${LIBNAME}"
        fi
        ;;

    'OpenSTEP')
	LIBNAME="lib${LIBNAME}.a"
	echo "mklib: Making OpenSTEP static library: " ${LIBNAME}
	libtool -static -o ${LIBNAME} - ${OBJECTS}
	FINAL_LIBS=${LIBNAME}
	;;

    'OSF1')
        if [ $STATIC = 1 ] ; then
	    LIBNAME="lib${LIBNAME}.a"
	    echo "mklib: Making OSF/1 static library: " ${LIBNAME}
    	    FINAL_LIBS=`make_ar_static_lib -ruv 0 ${LIBNAME} ${OBJECTS}`
	else
	    VERSION="${MAJOR}.${MINOR}"
	    LIBNAME="lib${LIBNAME}.so"
	    echo "mklib: Making OSF/1 shared library: " ${LIBNAME}
	    if [ "x$LINK" = "x" ] ; then
		if [ $CPLUSPLUS = 1 ] ; then
		    LINK=cxx
		else
		    LINK=cc
		fi
	    fi
	    rm -f ${LIBNAME}.${VERSION}
	    ${LINK} -o ${LIBNAME}.${VERSION} -shared -set_version ${VERSION} -soname ${LIBNAME}.${VERSION} -expect_unresolved \* -all ${OBJECTS} ${DEPS}
	    ln -sf ${LIBNAME}.${VERSION} ${LIBNAME}
	    FINAL_LIBS="${LIBNAME} ${LIBNAME}.${VERSION}"
	fi
	;;

    'Darwin')
        if [ $STATIC = 1 ] ; then
            LIBNAME="lib${LIBNAME}.a"
            echo "mklib: Making Darwin static library: " ${LIBNAME}
            OPTS="-ruvs"
            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi

            # expand .a into .o files
            NEW_OBJECTS=`expand_archives ${LIBNAME}.obj $OBJECTS`

            # make static lib
            FINAL_LIBS=`make_ar_static_lib ${OPTS} 1 ${LIBNAME} ${NEW_OBJECTS}`

            # remove temporary extracted .o files
            rm -rf ${LIBNAME}.obj

            FINAL_LIBS=${LIBNAME}
        else
            # On Darwin a .bundle is used for a library that you want to dlopen
            if [ $DLOPEN = "1" ] ; then
                LIBSUFFIX="bundle"
                OPTS="${ARCHOPT} -bundle -multiply_defined suppress"
            else
                LIBSUFFIX="dylib"
                if [ -z "$ID" ] ; then
                    ID="lib${LIBNAME}.${MAJOR}.${LIBSUFFIX}"
                fi
                OPTS="${ARCHOPT} -dynamiclib -multiply_defined suppress -current_version ${MAJOR}.${MINOR}.0 -compatibility_version ${MAJOR}.${MINOR}.0 -install_name ${ID}"
            fi

            if [ ${EXPORTS} ] ; then
                if [ -f ${EXPORTS}".darwin" ] ; then
                    EXPORTS=$EXPORTS".darwin"
                fi
                OPTS="${OPTS} -exported_symbols_list ${EXPORTS}"
            fi

            LINKNAME="lib${LIBNAME}.${LIBSUFFIX}"
            LIBNAME="lib${LIBNAME}.${MAJOR}.${LIBSUFFIX}"

	    # examine first object to determine ABI
    	    set ${OBJECTS}
            ABIS=`lipo -info $1 | sed s/.*://`
            for ABI in $ABIS; do
                OPTS="${OPTS} -arch ${ABI}"
            done

            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi

	    # determine linker
	    if [ $CPLUSPLUS = 1 ] ; then
		LINK="g++"
	    else
		LINK="cc"
	    fi

            echo "mklib: Making Darwin shared library: " ${LIBNAME}

            ${LINK} ${OPTS} ${LDFLAGS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
            ln -s ${LIBNAME} ${LINKNAME}
            FINAL_LIBS="${LIBNAME} ${LINKNAME}"
        fi
        ;;

    'LynxOS')
	LIBNAME="lib${LIBNAME}.a"
	echo "mklib: Making LynxOS static library: " ${LIBNAME}
        FINAL_LIBS=`make_ar_static_lib -ru 0 ${LIBNAME} ${OBJECTS}`
	;;

    'QNX')
	LIBNAME="lib${LIBNAME}.a"
	echo "mklib: Making QNX library: " ${LIBNAME}
	wlib ${LIBNAME} ${OBJECTS}
	FINAL_LIBS=${LIBNAME}
	;;

    'MorphOS')
	LIBNAME="lib${LIBNAME}.a"
	echo "mklib: Making MorphOS library: " ${LIBNAME}
	ppc-morphos-ar rc ${LIBNAME} ${OBJECTS}
	FINAL_LIBS="${LIBNAME}"
	;;

    'icc' | 'icc-istatic')
	# Intel C compiler
	# This should get merged into the Linux code, above, since this isn't
	# really a different architecture.
	LIBNAME="lib${LIBNAME}"     # prefix with "lib"

        if [ $STATIC = 1 ] ; then
            echo "mklib: Making Intel ICC static library: " ${LIBNAME}.a
            LINK="ar"
            OPTS="-ruv"
            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi
            # make lib
            ${LINK} ${OPTS} ${LIBNAME}.a ${OBJECTS}
            # finish up
            FINAL_LIBS="${LIBNAME}.a"
        else
            if [ $ARCH = icc-istatic ] ; then
                 OPTS="-shared -i-static -cxxlib-icc"
            else
                 OPTS="-shared"
            fi
            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi
            VERSION="${MAJOR}.${MINOR}.${PATCH}"
            echo "mklib: Making Intel ICC shared library: " ${LIBNAME}.so.${VERSION}

            if [ $CPLUSPLUS = 1 ] ; then
                LINK="icpc"
            else
                LINK="icc"
            fi
            # rm any old libs
            rm -f ${LIBNAME}.so.${VERSION}
            rm -f ${LIBNAME}.so.${MAJOR}
            rm -f ${LIBNAME}.so
            # make lib
            ${LINK} ${OPTS} ${LDFLAGS} -o ${LIBNAME}.so.${VERSION} ${OBJECTS} ${DEPS}
            # make usual symlinks
            ln -s ${LIBNAME}.so.${VERSION} ${LIBNAME}.so.${MAJOR}
            ln -s ${LIBNAME}.so.${MAJOR} ${LIBNAME}.so
            # finish up
            FINAL_LIBS="${LIBNAME}.so.${VERSION} ${LIBNAME}.so.${MAJOR} ${LIBNAME}.so"
        fi
	;;

    'aix-gcc')
	# AIX with gcc
        if [ $STATIC = 1 ] ; then
	    LIBNAME="lib${LIBNAME}.a"
	    echo "mklib: Making AIX GCC static library: " ${LIBNAME}
            FINAL_LIBS=`make_ar_static_lib ru 0 ${LIBNAME} ${OBJECTS}`
	else
	    LIBNAME="lib${LIBNAME}.so"  # prefix with "lib", suffix with ".so"
	    echo "mklib: Making AIX GCC shared library: " ${LIBNAME}
	    # remove old lib
	    rm -f ${LIBNAME}
	    # make the lib
	    gcc -shared -Wl,-G ${OBJECTS} ${DEPS} -o ${LIBNAME}
	    # NOTE: the application linking with this library must specify
	    # the -Wl,-brtl flags to gcc
	    FINAL_LIBS=${LIBNAME}
	fi
	;;

    'ultrix')
	# XXX untested
        if [ $STATIC = 0 ] ; then
	    echo "mklib: Warning shared libs not supported on Ultrix"
	fi
	LIBNAME="lib${LIBNAME}.a"
	echo "mklib: Making static library for Ultrix: " ${LIBNAME}
        FINAL_LIBS=`make_ar_static_lib ru 0 ${LIBNAME} ${OBJECTS}`
	;;

     CYGWIN*)
	# GCC-based environment

	if [ "x$LINK" = "x" ] ; then
	    # -linker was not specified so set default link command now
            if [ $CPLUSPLUS = 1 ] ; then
                LINK=g++
            else
                LINK=gcc
            fi
	fi

	if [ $NOPREFIX = 1 ] ; then
	    # No "lib" or ".so" part
	    echo "mklib: Making CYGWIN shared library: " ${LIBNAME}
	    OPTS="-shared -Wl,--enable-auto-image-base"
            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi
	    rm -f ${LIBNAME}
	    ${LINK} ${OPTS} ${LDFLAGS} -o ${LIBNAME} ${OBJECTS} ${DEPS} || exit $?
	    FINAL_LIBS=${LIBNAME}
        else
	CYGNAME="cyg${LIBNAME}"     # prefix with "cyg"
	LIBNAME="lib${LIBNAME}"     # prefix with "lib"

        if [ $STATIC = 1 ] ; then
	    LIBNAME=${LIBNAME}.a
            echo "mklib: Making CYGWIN static library: " ${LIBNAME}
            OPTS="-ru"
            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi

            # expand .a into .o files
            NEW_OBJECTS=`expand_archives ${LIBNAME}.obj $OBJECTS`

            FINAL_LIBS=`make_ar_static_lib ${OPTS} 1 ${LIBNAME} ${NEW_OBJECTS}`

            # remove temporary extracted .o files
            rm -rf ${LIBNAME}.obj
        else
	    OPTS="-shared -Wl,--enable-auto-image-base -Wl,-export-all -Wl,--out-implib=${LIBNAME}-${MAJOR}.dll.a"
            if [ "${ALTOPTS}" ] ; then
                OPTS=${ALTOPTS}
            fi
            echo "mklib: Making CYGWIN shared library: " ${CYGNAME}-${MAJOR}.dll

            # rm any old libs
            rm -f ${CYGNAME}-${MAJOR}.dll
            rm -f ${LIBNAME}-${MAJOR}.dll.a
            rm -f ${LIBNAME}.dll.a
            rm -f ${LIBNAME}.a

            # make lib
            ${LINK} ${OPTS} ${LDFLAGS} -o ${CYGNAME}-${MAJOR}.dll ${OBJECTS} ${DEPS} || exit $?
            # make usual symlinks
            ln -s ${LIBNAME}-${MAJOR}.dll.a ${LIBNAME}.dll.a
            # finish up
            FINAL_LIBS="${LIBNAME}-${MAJOR}.dll.a ${LIBNAME}.dll.a"
	    # special case for installing in bin
            FINAL_BINS="${CYGNAME}-${MAJOR}.dll"
        fi
        fi
	;;

	'Haiku')
		if [ $STATIC = 1 ] ; then
			LIBNAME="lib${LIBNAME}.a"
			if [ "x$LINK" = "x" ] ; then
				# -linker was not specified so set default link command now
				if [ $CPLUSPLUS = 1 ] ; then
					LINK=g++
				else
					LINK=gcc
				fi
			fi

			OPTS="-ru"
			if [ "${ALTOPTS}" ] ; then
				OPTS=${ALTOPTS}
			fi

			echo "mklib: Making static library for Haiku: " ${LIBNAME}

			# expand .a into .o files
			NEW_OBJECTS=`expand_archives ${LIBNAME}.obj $OBJECTS`

			# make static lib
			FINAL_LIBS=`make_ar_static_lib ${OPTS} 1 ${LIBNAME} ${NEW_OBJECTS}`

			# remove temporary extracted .o files
			rm -rf ${LIBNAME}.obj
        else
			LIBNAME="lib${LIBNAME}.so"  # prefix with "lib", suffix with ".so"
			OPTS="-shared"

			echo "mklib: Making shared library for Haiku: " ${LIBNAME}
			${LINK} ${OPTS} ${LDFLAGS} ${OBJECTS} ${DEPS} -o ${LIBNAME}
			FINAL_LIBS="${LIBNAME}"
		fi
	;;

    'example')
	# If you're adding support for a new architecture, you can
	# start with this:
        if [ $STATIC = 1 ] ; then
	    LIBNAME="lib${LIBNAME}.a"
	    echo "mklib: Making static library for example arch: " ${LIBNAME}
            FINAL_LIBS=`make_ar_static_lib rv 0 ${LIBNAME} ${OBJECTS}`
	else
	    LIBNAME="lib${LIBNAME}.so"  # prefix with "lib", suffix with ".so"
	    echo "mklib: Making shared library for example arch: " ${LIBNAME}
	    ld -o ${LIBNAME} ${OBJECTS} ${DEPS}
	    FINAL_LIBS="${LIBNAME}"
	fi
	;;

    *)
	echo "mklib: ERROR: Don't know how to make a static/shared library for" ${ARCH}
	echo "mklib: Please add necessary commands to mklib script."
	;;
esac


#
# Put library files into installation directory if specified.
#
if [ ${INSTALLDIR} != "." ] ; then
    echo "mklib: Installing" ${FINAL_LIBS} "in" ${INSTALLDIR}
    test -d ${INSTALLDIR} || mkdir -p ${INSTALLDIR}
    mv ${FINAL_LIBS} ${INSTALLDIR}/

    if [ "x${FINAL_BINS}" != "x" ] ; then
        echo "mklib: Installing" ${FINAL_BINS} "in" ${INSTALLDIR}
        mv ${FINAL_BINS} ${INSTALLDIR}/
    fi
fi