summaryrefslogtreecommitdiff
path: root/bin/mklib
blob: 06436ff388f544f10c8ac4316771b43f0788a738 (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
#!/bin/sh

# Make a shared library.
# Basically do a switch/case depending on the OS and make a shared (or static)
# library conforming to that OS.


# Usage:
#   mklib [options] objects ...
# Options:
#   -o LIBRARY    specifies the name of resulting library
#                 ("-o GL" for example, might result in "libGL.so" being made)
#   -major N      specifies major version number (default is 1)
#   -minor N      specifies minor version number (default is 0)
#   -patch N      specifies patch version number (default is 0)
#   -lLIBRARY     specifies a dependency on LIBRARY
#   -LDIR         search in DIR for library dependencies
#   -linker L     explicity specify the linker program to use (ex: gcc, g++)
#                 Not observed on all systems at this time.
#   -cplusplus    link with C++ runtime
#   -static       make a static library (default is dynamic/shared)
#   -install DIR  pu resulting library file(s) in DIR
#   -arch ARCH    override using `uname` to determine architecture
#   -archopt OPT  specify an extra achitecture-specific option OPT
#   -noprefix     don't prefix library name with "lib" nor add any suffix
#   -exports FILE only export the symbols listed in FILE
#
# The library name should just be "GL" or "GLU", etc.  The 'lib' prefix
# will be added here if needed, as well as the ".so" or ".a" suffix,
# etc (unless the -noprefix option is used).
#
# objects should be:  foo.o bar.o etc.o
#


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


#
# Parse arguments
#
while true
do
    case $1 in
	'-o')         shift 1; LIBNAME=$1;;
	'-major')     shift 1; MAJOR=$1;;
	'-minor')     shift 1; MINOR=$1;;
	'-patch')     shift 1; PATCH=$1;;
	'-linker')    shift 1; LINK=$1;;
	-l*)          DEPS="$DEPS $1";;
	-L*)          DEPS="$DEPS $1";;
	'-cplusplus') CPLUSPLUS=1;;
	'-static')    STATIC=1;;
	'-install')   shift 1; INSTALLDIR=$1;;
	'-arch')      shift 1; ARCH=$1;;
	'-archopt')   shift 1; ARCHOPT=$1;;
	'-noprefix')  NOPREFIX=1;;
	'-exports')   shift 1; EXPORTS=$1;;
	-*)           echo "mklib: Unknown option: " $1 ; exit 1;;
	*) break
    esac
    shift 1
done
OBJECTS=$@

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


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


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

    'Linux' | 'OpenBSD')
	# 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: " ${LIBNAME}
	    #OPTS="-shared -Wl,-soname,${LIBNAME}"  # soname???
	    OPTS="-shared"
            rm -f ${LIBNAME}
            # make lib
            ${LINK} ${OPTS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
            # finish up
            FINAL_LIBS="${LIBNAME}"
        elif [ $STATIC = 1 ] ; then
	    LIBNAME="lib${LIBNAME}"     # prefix with "lib"
            echo "mklib: Making" $ARCH "static library: " ${LIBNAME}.a
            LINK="ar"
            OPTS="-ru"
            # make lib
            ${LINK} ${OPTS} ${LIBNAME}.a ${OBJECTS}
	    ranlib ${LIBNAME}.a
            # finish up
            FINAL_LIBS=${LIBNAME}.a
        else
	    LIBNAME="lib${LIBNAME}"     # prefix with "lib"
	    if [ $ARCH = 'Linux' ] ; then
		OPTS="-Xlinker -Bsymbolic -shared -Wl,-soname,${LIBNAME}.so.${MAJOR}"
	    else
		OPTS="-shared -Wl,-soname,${LIBNAME}.so.${MAJOR}"
	    fi
	    if [ $EXPORTS ] ; then
		#OPTS="${OPTS} -Xlinker --retain-symbols-file ${EXPORTS}"
		# Make the 'exptmp' file for --version-script option
		echo "VERSION_${MAJOR}.${MINOR} {" > exptmp
		echo "global:" >> exptmp
		sed 's/$/;/' ${EXPORTS} >> exptmp
		echo "local:" >> exptmp
		echo "*;" >> exptmp
		echo "};" >> exptmp
		OPTS="${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 [ 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} -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}
	    rm -f ${LIBNAME}
	    ar -ruv ${LIBNAME} ${OBJECTS}
	    FINAL_LIBS=${LIBNAME}
	else
	    LIBNAME="lib${LIBNAME}.so"
	    echo "mklib: Making SunOS shared library: " ${LIBNAME}
	    # XXX OPTS for gcc should be -shared, but that doesn't work.
	    # Using -G does work though.
	    OPTS="-G"
	    if [ "x$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++ comiler, trying CC."
			LINK="CC"
		    fi
		else
		    # use native Sun linker for C code
		    LINK="ld"
		fi
	    fi
	    echo "mklib: linker is" ${LINK} ${OPTS}
	    rm -f ${LIBNAME}.${MAJOR} ${LIBNAME}
	    ${LINK} ${OPTS} -o ${LIBNAME}.${MAJOR} ${OBJECTS} ${DEPS}
	    ln -s ${LIBNAME}.${MAJOR} ${LIBNAME}
	    FINAL_LIBS="${LIBNAME}.${MAJOR} ${LIBNAME}"
	fi
	;;

    'FreeBSD')
	if [ $NOPREFIX = 1 ] ; then
	    # No "lib" or ".so" part
	    echo "mklib: Making FreeBSD shared library: " ${LIBNAME}
	    rm -f ${LIBNAME}
	    ld -Bshareable -o ${LIBNAME} ${OBJECTS}
	    FINAL_LIBS=${LIBNAME}
        elif [ $STATIC = 1 ] ; then
	    STLIB="lib${LIBNAME}.a"
	    echo "mklib: Making FreeBSD static library: " ${STLIB}
	    rm -f ${STLIB}
	    ar cq ${STLIB} ${OBJECTS}
	    ranlib ${STLIB}
	    FINAL_LIBS=${STLIB}
	else
	    SHLIB="lib${LIBNAME}.so.${MAJOR}.${MINOR}"
	    echo "mklib: Making FreeBSD shared library: " ${SHLIB}
	    rm -f ${SHLIB}
	    ld -Bshareable -o ${SHLIB} ${OBJECTS}
	    # XXX make lib${LIBNAME}.so.${MAJOR} symlink?
	    FINAL_LIBS=${SHLIB}
	fi
	;;

    'NetBSD')
        if [ $STATIC = 1 ] ; then
	    LIBNAME="lib${LIBNAME}_pic.a"
	    echo "mklib: Making NetBSD PIC static library: " ${LIBNAME}
	    rm -f ${LIBNAME}
	    ar cq ${LIBNAME} ${OBJECTS}
	    ranlib ${LIBNAME}
	    FINAL_LIBS=${LIBNAME}
	else
	    LIBNAME="lib${LIBNAME}.so.${MAJOR}.${MINOR}"
	    echo "mklib: Making NetBSD PIC shared library: " ${LIBNAME}
	    rm -f ${LIBNAME}
	    ld -x -Bshareable -Bforcearchive -o ${LIBNAME} ${OBJECTS}
	    FINAL_LIBS=${LIBNAME}
	fi
	;;

    'IRIX' | 'IRIX64')
        if [ $STATIC = 1 ] ; then
	    LIBNAME="lib${LIBNAME}.a"
	    rm -f ${LIBNAME}
	    ar rc ${LIBNAME} ${OBJECTS}
	    FINAL_LIBS=${LIBNAME}
	else
	    LIBNAME="lib${LIBNAME}.so"  # prefix with "lib", suffix with ".so"
	    # XXX we should run 'file' on the first object file to determine
	    # if it's o32, n32 or 64 format, as we do for Linux above.
	    if [ $ARCHOPT = "64" ] ; then
		# 64-bit ABI
		OPTS="-64 -shared -all"
		echo "mklib: Making IRIX 64-bit shared library: " ${LIBNAME}
	    elif [ $ARCHOPT = "o32" ] ; then
		# old 32-bit ABI
		OPTS="-32 -shared -all"
		echo "mklib: Making IRIX o32-bit shared library: " ${LIBNAME}
	    else
		# new 32-bit ABI
		OPTS="-n32 -shared -all"
		echo "mklib: Making IRIX n32-bit shared library: " ${LIBNAME}
	    fi
	    if [ $CPLUSPLUS = 1 ] ; then
		LINK="CC"
	    else
		LINK="ld"
	    fi
	    ${LINK} ${OPTS} -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}
	    rm -f ${LIBNAME}
	    ar -ruv ${LIBNAME} ${OBJECTS}
	    FINAL_LIBS=${LIBNAME}
	else
	    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' | 'AIX64')
	if [ $ARCH = "AIX64" ] ; then
	    X64="-X64"
	fi

        if [ $STATIC = 1 ] ; then
            LIBNAME="lib${LIBNAME}.a"
            echo "mklib: Making AIX static library: " ${LIBNAME}
            ar -ruv ${X64} ${LIBNAME} ${OBJECTS}
            FINAL_LIBS=${LIBNAME}
        else
	    EXPFILE="lib${LIBNAME}.exp"
	    OFILE=shr.o  #Want to be consistent with the IBM libGL.a
	    LIBNAME="lib${LIBNAME}.a"  # shared objects are still stored in the .a libraries
	    if [ $ARCH = "AIX64" ] ; then
		OPTS="-bE:${EXPFILE} -bM:SRE -bnoentry -q64"
	    else
		OPTS="-bE:${EXPFILE} -bM:SRE -bnoentry"
	    fi
	    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}
	    cc ${OPTS} -o ${OFILE} ${OBJECTS} ${DEPS}
	    ar ${X64} -r ${LIBNAME} ${OFILE}
            FINAL_LIBS="${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}
	    rm -f ${LIBNAME}
	    ar -ruv ${LIBNAME} ${OBJECTS}
	    FINAL_LIBS=${LIBNAME}
	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}
            LINK="ar"
            OPTS="-ruv"
            ${LINK} ${OPTS} ${LIBNAME} ${OBJECTS}
            FINAL_LIBS=${LIBNAME}
        else
            LIBNAME="lib${LIBNAME}.dylib"
            echo "mklib: Making Darwin shared library: " ${LIBNAME}
            FLAGS="-dynamiclib -multiply_defined suppress"
	    if [ $CPLUSPLUS = 1 ] ; then
		LINK="g++"
	    else
		LINK="cc"
	    fi
            ${LINK} ${FLAGS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
            FINAL_LIBS=${LIBNAME}
        fi
        ;;

    'LynxOS')
	LIBNAME="lib${LIBNAME}.a"
	echo "mklib: Making LynxOS static library: " ${LIBNAME}
	rm -f ${LIBNAME}
	ar ru ${LIBNAME} ${OBJECTS}
	FINAL_LIBS=${LIBNAME}
	;;

    'BeOS')
        if [ $STATIC = 1 ] ; then
            LIBNAME="lib${LIBNAME}.a"
            echo "mklib: Making BeOS static library: " ${LIBNAME}
            ar -cru "${LIBNAME}" ${OBJECTS}
        else
	    LIBNAME="lib${LIBNAME}.so"
	    echo "mklib: Making BeOS shared library: " ${LIBNAME}
	    gcc -nostart -Xlinker "-soname=${LIBNAME}" -L/Be/develop/lib/x86 -lbe ${DEPS} ${OBJECTS} -o "${LIBNAME}"
	    mimeset -f "${LIBNAME}"
	    # XXX remove the Mesa3D stuff here since mklib isn't mesa-specific.
	    setversion "${LIBNAME}" -app ${MAJOR} ${MINOR} ${PATCH} -short "Powered by Mesa3D!" -long "Powered by Mesa3D!"
	fi
	FINAL_LIBS=${LIBNAME}
	;;

    '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')
	# Intel C compiler
	LIBNAME="lib${LIBNAME}"     # prefix with "lib"

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

            if [ $CPLUSPLUS = 1 ] ; then
                LINK="icc"
            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} -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}
	    rm -f ${LIBNAME}
	    ar ru ${LIBNAME} ${OBJECTS}
	    FINAL_LIBS=${LIBNAME}
	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}
	rm -f ${LIBNAME}
	ar ru ${LIBNAME} ${OBJECTS}
	FINAL_LIBS="${LIBNAME}"
	;;

     CYGWIN*)
	# GCC-based environment
	CYGNAME="cyg${LIBNAME}"     # prefix with "cyg"
	LIBNAME="lib${LIBNAME}"     # prefix with "lib"

        if [ $STATIC = 1 ] ; then
            echo "mklib: Making" $ARCH "static library: " ${LIBNAME}.a
            LINK="ar"
            OPTS="-ru"
            # make lib
            ${LINK} ${OPTS} ${LIBNAME}.a ${OBJECTS}
	    ranlib ${LIBNAME}.a
            # finish up
            FINAL_LIBS=${LIBNAME}.a
        else
	    OPTS="-shared -Wl,-export-all -Wl,--out-implib=${LIBNAME}-${MAJOR}.dll.a"
            echo "mklib: Making" $ARCH "shared library: " ${LIBNAME}-${MAJOR}.dll

            if [ $CPLUSPLUS = 1 ] ; then
                LINK="g++"
            else
                LINK="gcc"
            fi

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

            # make lib
            ${LINK} ${OPTS} -o ${CYGNAME}-${MAJOR}.dll ${OBJECTS} ${DEPS}
            # 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
	;;

    '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}
	    rm -f ${LIBNAME}
	    ar rv ${LIBNAME} ${OBJECTS}
	    FINAL_LIBS="${LIBNAME}"
	else
	    LIBNAME="lib${LIBNAME}.so"  # prefix with "lib"
	    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}
    mv ${FINAL_LIBS} ${INSTALLDIR}/
fi