-
Notifications
You must be signed in to change notification settings - Fork 10
/
ltconfig
executable file
·2908 lines (2557 loc) · 88.6 KB
/
ltconfig
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
#! /bin/sh
# ltconfig - Create a system-specific libtool.
# Copyright (C) 1996-1999 Free Software Foundation, Inc.
# Originally by Gordon Matzigkeit <[email protected]>, 1996
#
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# A lot of this script is taken from autoconf-2.10.
# Check that we are running under the correct shell.
SHELL=${CONFIG_SHELL-/bin/sh}
echo=echo
if test "X$1" = X--no-reexec; then
# Discard the --no-reexec flag, and continue.
shift
elif test "X$1" = X--fallback-echo; then
# Avoid inline document here, it may be left over
:
elif test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then
# Yippee, $echo works!
:
else
# Restart under the correct shell.
exec "$SHELL" "$0" --no-reexec ${1+"$@"}
fi
if test "X$1" = X--fallback-echo; then
# used as fallback echo
shift
cat <<EOF
$*
EOF
exit 0
fi
# Find the correct PATH separator. Usually this is `:', but
# DJGPP uses `;' like DOS.
if test "X${PATH_SEPARATOR+set}" != "Xset"; then
UNAME=${UNAME-`uname 2>/dev/null`}
case X$UNAME in
*-DOS) PATH_SEPARATOR=';' ;;
*) PATH_SEPARATOR=':' ;;
esac
fi
# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
if test "${CDPATH+set}" = set; then CDPATH=; export CDPATH; fi
if test "X${echo_test_string+set}" != "Xset"; then
# find a string as large as possible, as long as the shell can cope with it
for cmd in 'sed 50q "$0"' 'sed 20q "$0"' 'sed 10q "$0"' 'sed 2q "$0"' 'echo test'; do
# expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
if (echo_test_string="`eval $cmd`") 2>/dev/null &&
echo_test_string="`eval $cmd`" &&
(test "X$echo_test_string" = "X$echo_test_string") 2>/dev/null; then
break
fi
done
fi
if test "X`($echo '\t') 2>/dev/null`" != 'X\t' ||
test "X`($echo "$echo_test_string") 2>/dev/null`" != X"$echo_test_string"; then
# The Solaris, AIX, and Digital Unix default echo programs unquote
# backslashes. This makes it impossible to quote backslashes using
# echo "$something" | sed 's/\\/\\\\/g'
#
# So, first we look for a working echo in the user's PATH.
IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
for dir in $PATH /usr/ucb; do
if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
test "X`($dir/echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
echo="$dir/echo"
break
fi
done
IFS="$save_ifs"
if test "X$echo" = Xecho; then
# We didn't find a better echo, so look for alternatives.
if test "X`(print -r '\t') 2>/dev/null`" = 'X\t' &&
test "X`(print -r "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
# This shell has a builtin print -r that does the trick.
echo='print -r'
elif (test -f /bin/ksh || test -f /bin/ksh$ac_exeext) &&
test "X$CONFIG_SHELL" != X/bin/ksh; then
# If we have ksh, try running ltconfig again with it.
ORIGINAL_CONFIG_SHELL="${CONFIG_SHELL-/bin/sh}"
export ORIGINAL_CONFIG_SHELL
CONFIG_SHELL=/bin/ksh
export CONFIG_SHELL
exec "$CONFIG_SHELL" "$0" --no-reexec ${1+"$@"}
else
# Try using printf.
echo='printf "%s\n"'
if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
test "X`($echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
# Cool, printf works
:
elif test "X`("$ORIGINAL_CONFIG_SHELL" "$0" --fallback-echo '\t') 2>/dev/null`" = 'X\t' &&
test "X`("$ORIGINAL_CONFIG_SHELL" "$0" --fallback-echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
CONFIG_SHELL="$ORIGINAL_CONFIG_SHELL"
export CONFIG_SHELL
SHELL="$CONFIG_SHELL"
export SHELL
echo="$CONFIG_SHELL $0 --fallback-echo"
elif test "X`("$CONFIG_SHELL" "$0" --fallback-echo '\t') 2>/dev/null`" = 'X\t' &&
test "X`("$CONFIG_SHELL" "$0" --fallback-echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
echo="$CONFIG_SHELL $0 --fallback-echo"
else
# maybe with a smaller string...
prev=:
for cmd in 'echo test' 'sed 2q "$0"' 'sed 10q "$0"' 'sed 20q "$0"' 'sed 50q "$0"'; do
if (test "X$echo_test_string" = "X`eval $cmd`") 2>/dev/null; then
break
fi
prev="$cmd"
done
if test "$prev" != 'sed 50q "$0"'; then
echo_test_string=`eval $prev`
export echo_test_string
exec "${ORIGINAL_CONFIG_SHELL}" "$0" ${1+"$@"}
else
# Oops. We lost completely, so just stick with echo.
echo=echo
fi
fi
fi
fi
fi
# Sed substitution that helps us do robust quoting. It backslashifies
# metacharacters that are still active within double-quoted strings.
Xsed='sed -e s/^X//'
sed_quote_subst='s/\([\\"\\`$\\\\]\)/\\\1/g'
# Same as above, but do not quote variable references.
double_quote_subst='s/\([\\"\\`\\\\]\)/\\\1/g'
# Sed substitution to delay expansion of an escaped shell variable in a
# double_quote_subst'ed string.
delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
# The name of this program.
progname=`$echo "X$0" | $Xsed -e 's%^.*/%%'`
# Constants:
PROGRAM=ltconfig
PACKAGE=libtool
VERSION=1.3
TIMESTAMP=" (1.385.2.117 1999/04/29 13:07:13)"
ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.c 1>&5'
ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.c $LIBS 1>&5'
rm="rm -f"
help="Try \`$progname --help' for more information."
# Global variables:
default_ofile=libtool
can_build_shared=yes
enable_shared=yes
# All known linkers require a `.a' archive for static linking.
enable_static=yes
enable_fast_install=yes
enable_dlopen=unknown
enable_win32_dll=no
ltmain=
silent=
srcdir=
ac_config_guess=
ac_config_sub=
host=
nonopt=
ofile="$default_ofile"
verify_host=yes
with_gcc=no
with_gnu_ld=no
need_locks=yes
ac_ext=c
objext=o
libext=a
cache_file=
old_AR="$AR"
old_CC="$CC"
old_CFLAGS="$CFLAGS"
old_CPPFLAGS="$CPPFLAGS"
old_LDFLAGS="$LDFLAGS"
old_LD="$LD"
old_LN_S="$LN_S"
old_LIBS="$LIBS"
old_NM="$NM"
old_RANLIB="$RANLIB"
old_DLLTOOL="$DLLTOOL"
old_OBJDUMP="$OBJDUMP"
old_AS="$AS"
# Parse the command line options.
args=
prev=
for option
do
case "$option" in
-*=*) optarg=`echo "$option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
*) optarg= ;;
esac
# If the previous option needs an argument, assign it.
if test -n "$prev"; then
eval "$prev=\$option"
prev=
continue
fi
case "$option" in
--help) cat <<EOM
Usage: $progname [OPTION]... [HOST [LTMAIN]]
Generate a system-specific libtool script.
--debug enable verbose shell tracing
--disable-shared do not build shared libraries
--disable-static do not build static libraries
--disable-fast-install do not optimize for fast installation
--enable-dlopen enable dlopen support
--enable-win32-dll enable building dlls on win32 hosts
--help display this help and exit
--no-verify do not verify that HOST is a valid host type
-o, --output=FILE specify the output file [default=$default_ofile]
--quiet same as \`--silent'
--silent do not print informational messages
--srcdir=DIR find \`config.guess' in DIR
--version output version information and exit
--with-gcc assume that the GNU C compiler will be used
--with-gnu-ld assume that the C compiler uses the GNU linker
--disable-lock disable file locking
--cache-file=FILE configure cache file
LTMAIN is the \`ltmain.sh' shell script fragment or \`ltmain.c' program
that provides basic libtool functionality.
HOST is the canonical host system name [default=guessed].
EOM
exit 0
;;
--debug)
echo "$progname: enabling shell trace mode"
set -x
;;
--disable-shared) enable_shared=no ;;
--disable-static) enable_static=no ;;
--disable-fast-install) enable_fast_install=no ;;
--enable-dlopen) enable_dlopen=yes ;;
--enable-win32-dll) enable_win32_dll=yes ;;
--quiet | --silent) silent=yes ;;
--srcdir) prev=srcdir ;;
--srcdir=*) srcdir="$optarg" ;;
--no-verify) verify_host=no ;;
--output | -o) prev=ofile ;;
--output=*) ofile="$optarg" ;;
--version) echo "$PROGRAM (GNU $PACKAGE) $VERSION$TIMESTAMP"; exit 0 ;;
--with-gcc) with_gcc=yes ;;
--with-gnu-ld) with_gnu_ld=yes ;;
--disable-lock) need_locks=no ;;
--cache-file=*) cache_file="$optarg" ;;
-*)
echo "$progname: unrecognized option \`$option'" 1>&2
echo "$help" 1>&2
exit 1
;;
*)
if test -z "$ltmain"; then
ltmain="$option"
elif test -z "$host"; then
# This generates an unnecessary warning for sparc-sun-solaris4.1.3_U1
# if test -n "`echo $option| sed 's/[-a-z0-9.]//g'`"; then
# echo "$progname: warning \`$option' is not a valid host type" 1>&2
# fi
host="$option"
else
echo "$progname: too many arguments" 1>&2
echo "$help" 1>&2
exit 1
fi ;;
esac
done
if test -z "$ltmain"; then
echo "$progname: you must specify a LTMAIN file" 1>&2
echo "$help" 1>&2
exit 1
fi
if test ! -f "$ltmain"; then
echo "$progname: \`$ltmain' does not exist" 1>&2
echo "$help" 1>&2
exit 1
fi
# Quote any args containing shell metacharacters.
ltconfig_args=
for arg
do
case "$arg" in
*" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
ltconfig_args="$ltconfig_args '$arg'" ;;
*) ltconfig_args="$ltconfig_args $arg" ;;
esac
done
# A relevant subset of AC_INIT.
# File descriptor usage:
# 0 standard input
# 1 file creation
# 2 errors and warnings
# 3 some systems may open it to /dev/tty
# 4 used on the Kubota Titan
# 5 compiler messages saved in config.log
# 6 checking for... messages and results
if test "$silent" = yes; then
exec 6>/dev/null
else
exec 6>&1
fi
exec 5>>./config.log
# NLS nuisances.
# Only set LANG and LC_ALL to C if already set.
# These must not be set unconditionally because not all systems understand
# e.g. LANG=C (notably SCO).
if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
if test "${LANG+set}" = set; then LANG=C; export LANG; fi
if test -n "$cache_file" && test -r "$cache_file"; then
echo "loading cache $cache_file within ltconfig"
. $cache_file
fi
if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
# Stardent Vistra SVR4 grep lacks -e, says [email protected].
if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
ac_n= ac_c='
' ac_t=' '
else
ac_n=-n ac_c= ac_t=
fi
else
ac_n= ac_c='\c' ac_t=
fi
if test -z "$srcdir"; then
# Assume the source directory is the same one as the path to LTMAIN.
srcdir=`$echo "X$ltmain" | $Xsed -e 's%/[^/]*$%%'`
test "$srcdir" = "$ltmain" && srcdir=.
fi
trap "$rm conftest*; exit 1" 1 2 15
if test "$verify_host" = yes; then
# Check for config.guess and config.sub.
ac_aux_dir=
for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
if test -f $ac_dir/config.guess; then
ac_aux_dir=$ac_dir
break
fi
done
if test -z "$ac_aux_dir"; then
echo "$progname: cannot find config.guess in $srcdir $srcdir/.. $srcdir/../.." 1>&2
echo "$help" 1>&2
exit 1
fi
ac_config_guess=$ac_aux_dir/config.guess
ac_config_sub=$ac_aux_dir/config.sub
# Make sure we can run config.sub.
if $SHELL $ac_config_sub sun4 >/dev/null 2>&1; then :
else
echo "$progname: cannot run $ac_config_sub" 1>&2
echo "$help" 1>&2
exit 1
fi
echo $ac_n "checking host system type""... $ac_c" 1>&6
host_alias=$host
case "$host_alias" in
"")
if host_alias=`$SHELL $ac_config_guess`; then :
else
echo "$progname: cannot guess host type; you must specify one" 1>&2
echo "$help" 1>&2
exit 1
fi ;;
esac
host=`$SHELL $ac_config_sub $host_alias`
echo "$ac_t$host" 1>&6
# Make sure the host verified.
test -z "$host" && exit 1
elif test -z "$host"; then
echo "$progname: you must specify a host type if you use \`--no-verify'" 1>&2
echo "$help" 1>&2
exit 1
else
host_alias=$host
fi
# Transform linux* to *-*-linux-gnu*, to support old configure scripts.
case "$host_os" in
linux-gnu*) ;;
linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
esac
host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
case "$host_os" in
aix3*)
# AIX sometimes has problems with the GCC collect2 program. For some
# reason, if we set the COLLECT_NAMES environment variable, the problems
# vanish in a puff of smoke.
if test "${COLLECT_NAMES+set}" != set; then
COLLECT_NAMES=
export COLLECT_NAMES
fi
;;
esac
# Determine commands to create old-style static archives.
old_archive_cmds='$AR cru $oldlib$oldobjs'
old_postinstall_cmds='chmod 644 $oldlib'
old_postuninstall_cmds=
# Set a sane default for `AR'.
test -z "$AR" && AR=ar
# Set a sane default for `OBJDUMP'.
test -z "$OBJDUMP" && OBJDUMP=objdump
# If RANLIB is not set, then run the test.
if test "${RANLIB+set}" != "set"; then
result=no
echo $ac_n "checking for ranlib... $ac_c" 1>&6
IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
for dir in $PATH; do
test -z "$dir" && dir=.
if test -f $dir/ranlib || test -f $dir/ranlib$ac_exeext; then
RANLIB="ranlib"
result="ranlib"
break
fi
done
IFS="$save_ifs"
echo "$ac_t$result" 1>&6
fi
if test -n "$RANLIB"; then
old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
old_postinstall_cmds="\$RANLIB \$oldlib~$old_postinstall_cmds"
fi
# Set sane defaults for `DLLTOOL', `OBJDUMP', and `AS', used on cygwin.
test -z "$DLLTOOL" && DLLTOOL=dlltool
test -z "$OBJDUMP" && OBJDUMP=objdump
test -z "$AS" && AS=as
# Check to see if we are using GCC.
if test "$with_gcc" != yes || test -z "$CC"; then
# If CC is not set, then try to find GCC or a usable CC.
if test -z "$CC"; then
echo $ac_n "checking for gcc... $ac_c" 1>&6
IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
for dir in $PATH; do
test -z "$dir" && dir=.
if test -f $dir/gcc || test -f $dir/gcc$ac_exeext; then
CC="gcc"
break
fi
done
IFS="$save_ifs"
if test -n "$CC"; then
echo "$ac_t$CC" 1>&6
else
echo "$ac_t"no 1>&6
fi
fi
# Not "gcc", so try "cc", rejecting "/usr/ucb/cc".
if test -z "$CC"; then
echo $ac_n "checking for cc... $ac_c" 1>&6
IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
cc_rejected=no
for dir in $PATH; do
test -z "$dir" && dir=.
if test -f $dir/cc || test -f $dir/cc$ac_exeext; then
if test "$dir/cc" = "/usr/ucb/cc"; then
cc_rejected=yes
continue
fi
CC="cc"
break
fi
done
IFS="$save_ifs"
if test $cc_rejected = yes; then
# We found a bogon in the path, so make sure we never use it.
set dummy $CC
shift
if test $# -gt 0; then
# We chose a different compiler from the bogus one.
# However, it has the same name, so the bogon will be chosen
# first if we set CC to just the name; use the full file name.
shift
set dummy "$dir/cc" "$@"
shift
CC="$@"
fi
fi
if test -n "$CC"; then
echo "$ac_t$CC" 1>&6
else
echo "$ac_t"no 1>&6
fi
if test -z "$CC"; then
echo "$progname: error: no acceptable cc found in \$PATH" 1>&2
exit 1
fi
fi
# Now see if the compiler is really GCC.
with_gcc=no
echo $ac_n "checking whether we are using GNU C... $ac_c" 1>&6
echo "$progname:579: checking whether we are using GNU C" >&5
$rm conftest.c
cat > conftest.c <<EOF
#ifdef __GNUC__
yes;
#endif
EOF
if { ac_try='${CC-cc} -E conftest.c'; { (eval echo $progname:587: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
with_gcc=yes
fi
$rm conftest.c
echo "$ac_t$with_gcc" 1>&6
fi
# Allow CC to be a program name with arguments.
set dummy $CC
compiler="$2"
echo $ac_n "checking for object suffix... $ac_c" 1>&6
$rm conftest*
echo 'int i = 1;' > conftest.c
echo "$progname:601: checking for object suffix" >& 5
if { (eval echo $progname:602: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
# Append any warnings to the config.log.
cat conftest.err 1>&5
for ac_file in conftest.*; do
case $ac_file in
*.c) ;;
*) objext=`echo $ac_file | sed -e s/conftest.//` ;;
esac
done
else
cat conftest.err 1>&5
echo "$progname: failed program was:" >&5
cat conftest.c >&5
fi
$rm conftest*
echo "$ac_t$objext" 1>&6
echo $ac_n "checking for $compiler option to produce PIC... $ac_c" 1>&6
pic_flag=
special_shlib_compile_flags=
wl=
link_static_flag=
no_builtin_flag=
if test "$with_gcc" = yes; then
wl='-Wl,'
link_static_flag='-static'
case "$host_os" in
beos* | irix5* | irix6* | osf3* | osf4*)
# PIC is the default for these OSes.
;;
aix*)
# Below there is a dirty hack to force normal static linking with -ldl
# The problem is because libdl dynamically linked with both libc and
# libC (AIX C++ library), which obviously doesn't included in libraries
# list by gcc. This cause undefined symbols with -static flags.
# This hack allows C programs to be linked with "-static -ldl", but
# we not sure about C++ programs.
link_static_flag="$link_static_flag ${wl}-lC"
;;
cygwin* | mingw* | os2*)
# We can build DLLs from non-PIC.
;;
amigaos*)
# FIXME: we need at least 68020 code to build shared libraries, but
# adding the `-m68020' flag to GCC prevents building anything better,
# like `-m68040'.
pic_flag='-m68020 -resident32 -malways-restore-a4'
;;
*)
pic_flag='-fPIC'
;;
esac
else
# PORTME Check for PIC flags for the system compiler.
case "$host_os" in
aix3* | aix4*)
# All AIX code is PIC.
link_static_flag='-bnso -bI:/lib/syscalls.exp'
;;
hpux9* | hpux10* | hpux11*)
# Is there a better link_static_flag that works with the bundled CC?
wl='-Wl,'
link_static_flag="${wl}-a ${wl}archive"
pic_flag='+Z'
;;
irix5* | irix6*)
wl='-Wl,'
link_static_flag='-non_shared'
# PIC (with -KPIC) is the default.
;;
cygwin* | mingw* | os2*)
# We can build DLLs from non-PIC.
;;
osf3* | osf4*)
# All OSF/1 code is PIC.
wl='-Wl,'
link_static_flag='-non_shared'
;;
sco3.2v5*)
pic_flag='-Kpic'
link_static_flag='-dn'
special_shlib_compile_flags='-belf'
;;
solaris*)
pic_flag='-KPIC'
link_static_flag='-Bstatic'
wl='-Wl,'
;;
sunos4*)
pic_flag='-PIC'
link_static_flag='-Bstatic'
wl='-Qoption ld '
;;
sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
pic_flag='-KPIC'
link_static_flag='-Bstatic'
wl='-Wl,'
;;
uts4*)
pic_flag='-pic'
link_static_flag='-Bstatic'
;;
*)
can_build_shared=no
;;
esac
fi
if test -n "$pic_flag"; then
echo "$ac_t$pic_flag" 1>&6
# Check to make sure the pic_flag actually works.
echo $ac_n "checking if $compiler PIC flag $pic_flag works... $ac_c" 1>&6
$rm conftest*
echo "int some_variable = 0;" > conftest.c
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $pic_flag -DPIC"
echo "$progname:732: checking if $compiler PIC flag $pic_flag works" >&5
if { (eval echo $progname:733: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.$objext; then
# Append any warnings to the config.log.
cat conftest.err 1>&5
case "$host_os" in
hpux9* | hpux10* | hpux11*)
# On HP-UX, both CC and GCC only warn that PIC is supported... then they
# create non-PIC objects. So, if there were any warnings, we assume that
# PIC is not supported.
if test -s conftest.err; then
echo "$ac_t"no 1>&6
can_build_shared=no
pic_flag=
else
echo "$ac_t"yes 1>&6
pic_flag=" $pic_flag"
fi
;;
*)
echo "$ac_t"yes 1>&6
pic_flag=" $pic_flag"
;;
esac
else
# Append any errors to the config.log.
cat conftest.err 1>&5
can_build_shared=no
pic_flag=
echo "$ac_t"no 1>&6
fi
CFLAGS="$save_CFLAGS"
$rm conftest*
else
echo "$ac_t"none 1>&6
fi
# Check to see if options -o and -c are simultaneously supported by compiler
echo $ac_n "checking if $compiler supports -c -o file.o... $ac_c" 1>&6
$rm -r conftest 2>/dev/null
mkdir conftest
cd conftest
$rm conftest*
echo "int some_variable = 0;" > conftest.c
mkdir out
# According to Tom Tromey, Ian Lance Taylor reported there are C compilers
# that will create temporary files in the current directory regardless of
# the output directory. Thus, making CWD read-only will cause this test
# to fail, enabling locking or at least warning the user not to do parallel
# builds.
chmod -w .
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -o out/conftest2.o"
echo "$progname:785: checking if $compiler supports -c -o file.o" >&5
if { (eval echo $progname:786: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>out/conftest.err; } && test -s out/conftest2.o; then
# The compiler can only warn and ignore the option if not recognized
# So say no if there are warnings
if test -s out/conftest.err; then
echo "$ac_t"no 1>&6
compiler_c_o=no
else
echo "$ac_t"yes 1>&6
compiler_c_o=yes
fi
else
# Append any errors to the config.log.
cat out/conftest.err 1>&5
compiler_c_o=no
echo "$ac_t"no 1>&6
fi
CFLAGS="$save_CFLAGS"
chmod u+w .
$rm conftest* out/*
rmdir out
cd ..
rmdir conftest
$rm -r conftest 2>/dev/null
if test x"$compiler_c_o" = x"yes"; then
# Check to see if we can write to a .lo
echo $ac_n "checking if $compiler supports -c -o file.lo... $ac_c" 1>&6
$rm conftest*
echo "int some_variable = 0;" > conftest.c
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -c -o conftest.lo"
echo "$progname:818: checking if $compiler supports -c -o file.lo" >&5
if { (eval echo $progname:819: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.lo; then
# The compiler can only warn and ignore the option if not recognized
# So say no if there are warnings
if test -s conftest.err; then
echo "$ac_t"no 1>&6
compiler_o_lo=no
else
echo "$ac_t"yes 1>&6
compiler_o_lo=yes
fi
else
# Append any errors to the config.log.
cat conftest.err 1>&5
compiler_o_lo=no
echo "$ac_t"no 1>&6
fi
CFLAGS="$save_CFLAGS"
$rm conftest*
else
compiler_o_lo=no
fi
# Check to see if we can do hard links to lock some files if needed
hard_links="nottested"
if test "$compiler_c_o" = no && test "$need_locks" != no; then
# do not overwrite the value of need_locks provided by the user
echo $ac_n "checking if we can lock with hard links... $ac_c" 1>&6
hard_links=yes
$rm conftest*
ln conftest.a conftest.b 2>/dev/null && hard_links=no
touch conftest.a
ln conftest.a conftest.b 2>&5 || hard_links=no
ln conftest.a conftest.b 2>/dev/null && hard_links=no
echo "$ac_t$hard_links" 1>&6
$rm conftest*
if test "$hard_links" = no; then
echo "*** WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2
need_locks=warn
fi
else
need_locks=no
fi
if test "$with_gcc" = yes; then
# Check to see if options -fno-rtti -fno-exceptions are supported by compiler
echo $ac_n "checking if $compiler supports -fno-rtti -fno-exceptions ... $ac_c" 1>&6
$rm conftest*
echo "int some_variable = 0;" > conftest.c
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fno-rtti -fno-exceptions -c conftest.c"
echo "$progname:870: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
if { (eval echo $progname:871: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.o; then
# The compiler can only warn and ignore the option if not recognized
# So say no if there are warnings
if test -s conftest.err; then
echo "$ac_t"no 1>&6
compiler_rtti_exceptions=no
else
echo "$ac_t"yes 1>&6
compiler_rtti_exceptions=yes
fi
else
# Append any errors to the config.log.
cat conftest.err 1>&5
compiler_rtti_exceptions=no
echo "$ac_t"no 1>&6
fi
CFLAGS="$save_CFLAGS"
$rm conftest*
if test "$compiler_rtti_exceptions" = "yes"; then
no_builtin_flag=' -fno-builtin -fno-rtti -fno-exceptions'
else
no_builtin_flag=' -fno-builtin'
fi
fi
# Check for any special shared library compilation flags.
if test -n "$special_shlib_compile_flags"; then
echo "$progname: warning: \`$CC' requires \`$special_shlib_compile_flags' to build shared libraries" 1>&2
if echo "$old_CC $old_CFLAGS " | egrep -e "[ ]$special_shlib_compile_flags[ ]" >/dev/null; then :
else
echo "$progname: add \`$special_shlib_compile_flags' to the CC or CFLAGS env variable and reconfigure" 1>&2
can_build_shared=no
fi
fi
echo $ac_n "checking if $compiler static flag $link_static_flag works... $ac_c" 1>&6
$rm conftest*
echo 'main(){return(0);}' > conftest.c
save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $link_static_flag"
echo "$progname:914: checking if $compiler static flag $link_static_flag works" >&5
if { (eval echo $progname:915: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
echo "$ac_t$link_static_flag" 1>&6
else
echo "$ac_t"none 1>&6
link_static_flag=
fi
LDFLAGS="$save_LDFLAGS"
$rm conftest*
if test -z "$LN_S"; then
# Check to see if we can use ln -s, or we need hard links.
echo $ac_n "checking whether ln -s works... $ac_c" 1>&6
$rm conftest.dat
if ln -s X conftest.dat 2>/dev/null; then
$rm conftest.dat
LN_S="ln -s"
else
LN_S=ln
fi
if test "$LN_S" = "ln -s"; then
echo "$ac_t"yes 1>&6
else
echo "$ac_t"no 1>&6
fi
fi
# Make sure LD is an absolute path.
if test -z "$LD"; then
ac_prog=ld
if test "$with_gcc" = yes; then
# Check if gcc -print-prog-name=ld gives a path.
echo $ac_n "checking for ld used by GCC... $ac_c" 1>&6
echo "$progname:947: checking for ld used by GCC" >&5
ac_prog=`($CC -print-prog-name=ld) 2>&5`
case "$ac_prog" in
# Accept absolute paths.
[\\/]* | [A-Za-z]:[\\/]*)
re_direlt='/[^/][^/]*/\.\./'
# Canonicalize the path of ld
ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
done
test -z "$LD" && LD="$ac_prog"
;;
"")
# If it fails, then pretend we are not using GCC.
ac_prog=ld
;;
*)
# If it is relative, then search for the first ld in PATH.
with_gnu_ld=unknown
;;
esac
elif test "$with_gnu_ld" = yes; then
echo $ac_n "checking for GNU ld... $ac_c" 1>&6
echo "$progname:971: checking for GNU ld" >&5
else
echo $ac_n "checking for non-GNU ld""... $ac_c" 1>&6
echo "$progname:974: checking for non-GNU ld" >&5
fi
if test -z "$LD"; then
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
LD="$ac_dir/$ac_prog"
# Check to see if the program is GNU ld. I'd rather use --version,
# but apparently some GNU ld's only accept -v.
# Break only if it was the GNU/non-GNU ld that we prefer.
if "$LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
test "$with_gnu_ld" != no && break
else
test "$with_gnu_ld" != yes && break
fi
fi
done
IFS="$ac_save_ifs"
fi
if test -n "$LD"; then
echo "$ac_t$LD" 1>&6
else
echo "$ac_t"no 1>&6
fi