Correct date.
[deliverable/binutils-gdb.git] / gas / configure.in
CommitLineData
252b5132
RH
1dnl Process this file with autoconf to produce a configure script.
2dnl
3dnl And be careful when changing it! If you must add tests with square
4dnl brackets, be sure changequote invocations surround it.
5dnl
6dnl
7dnl v2.5 needed for --bindir et al
da594c4a
AM
8AC_PREREQ(2.59)
9AC_INIT
10AC_CONFIG_SRCDIR(as.h)
252b5132 11
13b2be9c
DJ
12dnl Autoconf 2.57 will find the aux dir without this. However, unless
13dnl we specify this explicitly, automake-1.7 will assume that ylwrap is in
14dnl gas/ instead of gas/../.
15AC_CONFIG_AUX_DIR(..)
da594c4a 16AC_CANONICAL_TARGET
5d64ca4e 17AC_ISC_POSIX
252b5132 18
27b7e12d
AM
19changequote(,)dnl
20BFD_VERSION=`sed -n -e 's/^.._INIT_AUTOMAKE.*,[ ]*\([^ ]*\)[ ]*).*/\1/p' < ${srcdir}/../bfd/configure.in`
21changequote([,])dnl
22AM_INIT_AUTOMAKE(gas, ${BFD_VERSION})
252b5132 23
ce2cded5
L
24AC_PROG_CC
25AC_GNU_SOURCE
7357c5b6 26AC_USE_SYSTEM_EXTENSIONS
d053aef8 27AC_SYS_LARGEFILE
ce2cded5 28
da594c4a 29LT_INIT
252b5132 30
252b5132 31AC_ARG_ENABLE(targets,
241a6c40 32[ --enable-targets alternative target configurations besides the primary],
252b5132 33[case "${enableval}" in
da594c4a 34 yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
252b5132
RH
35 ;;
36 no) enable_targets= ;;
37 *) enable_targets=$enableval ;;
38esac])dnl
c43a438d 39
c43a438d
AM
40ac_checking=yes
41if grep '^RELEASE=y' ${srcdir}/../bfd/Makefile.am >/dev/null 2>/dev/null ; then
42 ac_checking=
43fi
44AC_ARG_ENABLE(checking,
45[ --enable-checking enable run-time checks],
46[case "${enableval}" in
47 no|none) ac_checking= ;;
48 *) ac_checking=yes ;;
49esac])dnl
50if test x$ac_checking != x ; then
51 AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
52fi
53
252b5132
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54using_cgen=no
55
9e9b66a9 56AM_BINUTILS_WARNINGS
a2d91340 57
252b5132 58# Generate a header file
da594c4a 59AC_CONFIG_HEADERS(config.h:config.in)
252b5132 60
76a27922
ILT
61# If we are on a DOS filesystem, we must use gdb.ini rather than
62# .gdbinit.
76a27922 63case "${host}" in
591d4689 64 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
76a27922 65 GDBINIT="gdb.ini"
13b2be9c
DJ
66 AC_CONFIG_FILES(gdb.ini:gdbinit.in)
67 ;;
68 *)
69 GDBINIT=".gdbinit"
70 AC_CONFIG_FILES(.gdbinit:gdbinit.in)
76a27922
ILT
71 ;;
72esac
73AC_SUBST(GDBINIT)
74
44f2f9d2
AM
75#We need this for the host. BOUT header is in host order.
76AC_C_BIGENDIAN
77
252b5132
RH
78te_file=generic
79
80# Makefile target for installing gas in $(tooldir)/bin.
81install_tooldir=install-exec-tooldir
82
83canon_targets=""
15886821 84all_targets=no
252b5132
RH
85if test -n "$enable_targets" ; then
86 for t in `echo $enable_targets | sed 's/,/ /g'`; do
15886821
L
87 if test $t = "all"; then
88 all_targets=yes
89 continue
90 fi
6d83c84b 91 result=`$ac_config_sub $t 2>/dev/null`
252b5132
RH
92 if test -n "$result" ; then
93 canon_targets="$canon_targets $result"
94# else
95# # Permit "all", etc. We don't support it yet though.
96# canon_targets="$canon_targets $t"
97 fi
98 done
99 GAS_UNIQ(canon_targets)
100fi
101
102emulations=""
103
104for this_target in $target $canon_targets ; do
105
14ee9f48
ILT
106 targ=${this_target}
107 . ${srcdir}/configure.tgt
108
109 case ${target_cpu} in
110 crisv32)
111 AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
112 [Default CRIS architecture.])
113 ;;
252b5132
RH
114 esac
115
116 if test ${this_target} = $target ; then
117 target_cpu_type=${cpu_type}
118 elif test ${target_cpu_type} != ${cpu_type} ; then
119 continue
120 fi
121
14ee9f48 122 generic_target=${cpu_type}-${target_vendor}-${target_os}
252b5132 123 case ${generic_target} in
14ee9f48
ILT
124 i386-*-sco3.2v5*)
125 if test ${this_target} = $target; then
126 AC_DEFINE(SCO_ELF, 1, [Define if defaulting to ELF on SCO 5.])
127 fi
128 ;;
1fe1f39c 129
79500683
AM
130 i386-*-msdosdjgpp* \
131 | i386-*-go32* \
14ee9f48
ILT
132 | i386-go32-rtems*)
133 AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
134 ;;
79500683 135
14ee9f48
ILT
136 i860-*-*)
137 AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
138 ;;
79500683 139
14ee9f48
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140 mips-sony-bsd*)
141 ;;
79500683 142 mips-*-bsd*)
14ee9f48
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143 AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.)
144 ;;
4101eec8 145
e5231592
RS
146changequote(,)dnl
147 ppc-*-aix[5-9].*)
148changequote([,])dnl
14ee9f48 149 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
f8fc3443 150 [Define if using AIX 5.2 value for C_WEAKEXT.])
14ee9f48 151 ;;
ed84e695 152 ppc-*-linux-*)
14ee9f48
ILT
153 case "$endian" in
154 big) ;;
155 *) AC_MSG_ERROR(GNU/Linux must be configured big endian) ;;
156 esac
157 ;;
158 ppc-*-solaris*)
159 if test ${this_target} = $target; then
160 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
161 [Define if default target is PowerPC Solaris.])
162 fi
163 if test x${endian} = xbig; then
164 AC_MSG_ERROR(Solaris must be configured little endian)
165 fi
166 ;;
167
168 sh*-*-symbianelf*)
169 AC_DEFINE(TARGET_SYMBIAN, 1, [Define if target is Symbian OS.])
170 ;;
252b5132
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171 esac
172
173 if test ${this_target} = $target ; then
174 endian_def=
175 if test x${endian} = xbig; then
176 endian_def=1
177 elif test x${endian} = xlittle; then
178 endian_def=0
179 fi
180 if test x${endian_def} != x; then
181 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
182 [Define as 1 if big endian.])
183 fi
184 fi
185
252b5132
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186# Other random stuff.
187
316f5878
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188 case ${cpu_type} in
189 mips)
190 # Set mips_cpu to the name of the default CPU.
191 case ${target_cpu} in
192 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
193 mips_cpu=from-abi
194 ;;
195 mipsisa32 | mipsisa32el)
196 mips_cpu=mips32
197 ;;
af7ee8bf
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198 mipsisa32r2 | mipsisa32r2el)
199 mips_cpu=mips32r2
200 ;;
316f5878
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201 mipsisa64 | mipsisa64el)
202 mips_cpu=mips64
203 ;;
5f74bc13
CD
204 mipsisa64r2 | mipsisa64r2el)
205 mips_cpu=mips64r2
206 ;;
316f5878
RS
207 mipstx39 | mipstx39el)
208 mips_cpu=r3900
209 ;;
8f6847cb
RS
210 mips64vr | mips64vrel)
211 mips_cpu=vr4100
212 ;;
5f74bc13 213 mipsisa32r2* | mipsisa64r2*)
af7ee8bf
CD
214changequote(,)dnl
215 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
216changequote([,])dnl
217 ;;
316f5878
RS
218 mips64* | mipsisa64* | mipsisa32*)
219changequote(,)dnl
220 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
221changequote([,])dnl
222 ;;
223 *)
da594c4a 224 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
316f5878
RS
225 ;;
226 esac
227 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
228 # binaries. It's a GNU extension that some OSes don't understand.
229 # The value only matters on ELF targets.
230 case ${target} in
231 *-*-irix*)
232 use_e_mips_abi_o32=0
233 ;;
234 *)
235 use_e_mips_abi_o32=1
236 ;;
237 esac
238 # Decide whether to generate 32-bit or 64-bit code by default.
239 # Used to resolve -march=from-abi when an embedded ABI is selected.
240 case ${target} in
241 mips64*-*-* | mipsisa64*-*-*)
242 mips_default_64bit=1
243 ;;
244 *)
245 mips_default_64bit=0
246 ;;
247 esac
cac012d6
AO
248 # Decide which ABI to target by default.
249 case ${target} in
250 mips64*-linux* | mips-sgi-irix6*)
251 mips_default_abi=N32_ABI
252 ;;
253 mips*-linux*)
254 mips_default_abi=O32_ABI
255 ;;
26eebcf5
MK
256 mips64*-openbsd*)
257 mips_default_abi=N64_ABI
258 ;;
cac012d6
AO
259 *)
260 mips_default_abi=NO_ABI
261 ;;
262 esac
316f5878
RS
263 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
264 [Default CPU for MIPS targets. ])
265 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
266 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
267 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
268 [Generate 64-bit code by default on MIPS targets. ])
cac012d6
AO
269 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
270 [Choose a default ABI for MIPS targets. ])
316f5878
RS
271 ;;
272 esac
273
252b5132
RH
274 # Do we need the opcodes library?
275 case ${cpu_type} in
0b1cf022 276 vax | tic30)
252b5132
RH
277 ;;
278
279 *)
280 need_opcodes=yes
281
282 case "${enable_shared}" in
283 yes) shared_opcodes=true ;;
284 *opcodes*) shared_opcodes=true ;;
285 *) shared_opcodes=false ;;
286 esac
252b5132
RH
287 ;;
288 esac
289
290 # Any other special object files needed ?
291 case ${cpu_type} in
07c1b327
CM
292
293 bfin)
294 echo ${extra_objects} | grep -s "bfin-parse.o"
295 if test $? -ne 0 ; then
296 extra_objects="$extra_objects bfin-parse.o"
297 fi
298
299 echo ${extra_objects} | grep -s "bfin-lex.o"
300 if test $? -ne 0 ; then
301 extra_objects="$extra_objects bfin-lex.o"
302 fi
303 ;;
304
84e94c90 305 fr30 | ip2k | iq2000 | lm32 | m32r | openrisc)
252b5132
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306 using_cgen=yes
307 ;;
308
49f58d10
JB
309 m32c)
310 using_cgen=yes
311 ;;
0ebb9a87
DB
312 frv)
313 using_cgen=yes
314 ;;
252b5132
RH
315 m68k)
316 case ${extra_objects} in
317 *m68k-parse.o*) ;;
318 *) extra_objects="$extra_objects m68k-parse.o" ;;
319 esac
320 ;;
321
280d71bf
DB
322 mep)
323 using_cgen=yes
324 ;;
325
252b5132 326 mips)
12e64c2c 327 echo ${extra_objects} | grep -s "itbl-parse.o"
252b5132
RH
328 if test $? -ne 0 ; then
329 extra_objects="$extra_objects itbl-parse.o"
330 fi
331
12e64c2c 332 echo ${extra_objects} | grep -s "itbl-lex.o"
252b5132
RH
333 if test $? -ne 0 ; then
334 extra_objects="$extra_objects itbl-lex.o"
335 fi
336
12e64c2c 337 echo ${extra_objects} | grep -s "itbl-ops.o"
252b5132
RH
338 if test $? -ne 0 ; then
339 extra_objects="$extra_objects itbl-ops.o"
340 fi
341 ;;
342
4970f871 343 mt)
047af9ef
AH
344 using_cgen=yes
345 ;;
346
c1e4eef7 347 i386 | s390 | sparc)
252b5132
RH
348 if test $this_target = $target ; then
349 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
350 fi
351 ;;
93fbbb04
GK
352
353 xstormy16)
354 using_cgen=yes
355 ;;
356
d70c5fc7
NC
357 xc16x)
358 using_cgen=yes
359 ;;
360
e0001a05
NC
361 xtensa)
362 echo ${extra_objects} | grep -s "xtensa-relax.o"
363 if test $? -ne 0 ; then
364 extra_objects="$extra_objects xtensa-relax.o"
365 fi
366 ;;
367
252b5132
RH
368 *)
369 ;;
370 esac
371
372 if test $using_cgen = yes ; then
373 case "x${extra_objects}" in
374 *cgen.o*) ;;
375 *) extra_objects="$extra_objects cgen.o" ;;
376 esac
377 fi
378
379# See if we really can support this configuration with the emulation code.
380
381 if test $this_target = $target ; then
252b5132
RH
382 obj_format=$fmt
383 te_file=$em
252b5132
RH
384 fi
385
386# From target name and format, produce a list of supported emulations.
387
388 case ${generic_target}-${fmt} in
389 mips-*-irix5*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
4008bd9b 390 mips*-*-linux*-*) case "$endian" in
df3bcd6f
L
391 big) emulation="mipsbelf mipslelf mipself" ;;
392 *) emulation="mipslelf mipsbelf mipself" ;;
252b5132
RH
393 esac ;;
394 mips-*-lnews*-ecoff) ;;
395 mips-*-*-ecoff) case "$endian" in
396 big) emulation="mipsbecoff mipslecoff mipsecoff" ;;
397 *) emulation="mipslecoff mipsbecoff mipsecoff" ;;
398 esac ;;
399 mips-*-*-elf) case "$endian" in
400 big) emulation="mipsbelf mipslelf mipself" ;;
401 *) emulation="mipslelf mipsbelf mipself" ;;
252b5132 402 esac ;;
906fac54 403 mips-*-sysv4*MP*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
119caedd
L
404 # i386-pc-pe-coff != i386-pc-coff.
405 i386-*-pe-coff) ;;
4c63da97
AM
406 # Uncommenting the next line will turn on support for i386 AOUT
407 # for the default linux configuration
408 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
409 #
410 i386-*-aout) emulation="i386aout" ;;
4ca72d38 411 i386-*-coff) emulation="i386coff" ;;
4c63da97 412 i386-*-elf) emulation="i386elf" ;;
3bcbcc3d 413
f9c19112
HPN
414 # Always all formats. The first stated emulation becomes the default.
415 cris-*-*aout*) emulation="crisaout criself" ;;
416 cris-*-*) emulation="criself crisaout" ;;
252b5132
RH
417 esac
418
419 emulations="$emulations $emulation"
420
421done
422
15886821
L
423# Turn on all targets if possible
424if test ${all_targets} = "yes"; then
425 case ${target_cpu_type} in
426 i386)
427 case ${obj_format} in
428 aout)
429 emulations="$emulations i386coff i386elf"
430 ;;
431 coff)
432 emulations="$emulations i386aout i386elf"
433 ;;
434 elf)
435 emulations="$emulations i386aout i386coff"
436 ;;
437 esac
438 ;;
99ad8390
NC
439 x86_64)
440 case ${obj_format} in
441 aout)
442 emulations="$emulations i386coff i386elf"
443 ;;
444 coff)
445 emulations="$emulations i386aout i386elf"
446 ;;
447 elf)
448 emulations="$emulations i386aout i386coff"
449 ;;
450 esac
451 ;;
15886821
L
452 esac
453fi
454
252b5132
RH
455# Assign floating point type. Most processors with FP support
456# IEEE FP. On those that don't support FP at all, usually IEEE
457# is emulated.
458case ${target_cpu} in
12e64c2c 459 vax | pdp11 ) atof=vax ;;
252b5132
RH
460 *) atof=ieee ;;
461esac
462
463case "${obj_format}" in
464 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
465esac
466
467# Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
468cgen_cpu_prefix=""
469if test $using_cgen = yes ; then
470 case ${target_cpu} in
471 *) cgen_cpu_prefix=${target_cpu} ;;
472 esac
473 AC_SUBST(cgen_cpu_prefix)
474 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
475fi
476
477dnl
478dnl Make sure the desired support files exist.
479dnl
480
481if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
482 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
483fi
484
485if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
486 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
487fi
488
252b5132
RH
489# Some COFF configurations want these random other flags set.
490case ${obj_format} in
491 coff)
492 case ${target_cpu_type} in
493 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
494 m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
495 m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
99ad8390 496 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
252b5132
RH
497 esac
498 ;;
499esac
500
501# Getting this done right is going to be a bitch. Each configuration specified
7be1c489
AM
502# with --enable-targets=... should be checked for environment, format, cpu
503# setting.
252b5132
RH
504#
505# For each configuration, the necessary object file support code must be linked
506# in. This might be only one, it might be up to four. The necessary emulation
507# code needs to be provided, too.
508#
509# And then there's "--enable-targets=all"....
510#
511# For now, just always do it for MIPS ELF or ECOFF configurations. Sigh.
512
513formats="${obj_format}"
514emfiles=""
515EMULATIONS=""
516GAS_UNIQ(emulations)
517for em in . $emulations ; do
518 case $em in
519 .) continue ;;
97238fbd 520 mipsbelf | mipslelf | mipself)
252b5132 521 fmt=elf file=mipself ;;
97238fbd 522 mipsbecoff | mipslecoff | mipsecoff)
252b5132 523 fmt=ecoff file=mipsecoff ;;
0aa5d426
HPN
524 *coff)
525 fmt=coff file=$em ;;
526 *aout)
527 fmt=aout file=$em ;;
528 *elf)
529 fmt=elf file=$em ;;
252b5132
RH
530 esac
531 formats="$formats $fmt"
532 emfiles="$emfiles e-$file.o"
533 EMULATIONS="$EMULATIONS &$em,"
534done
535GAS_UNIQ(formats)
536GAS_UNIQ(emfiles)
537if test `set . $formats ; shift ; echo $#` -gt 1 ; then
538 for fmt in $formats ; do
539 case $fmt in
540 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
541 bout) AC_DEFINE(OBJ_MAYBE_BOUT, 1, [b.out support?]) ;;
542 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
543 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
544 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
545 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
252b5132 546 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
252b5132
RH
547 esac
548 extra_objects="$extra_objects obj-$fmt.o"
549 done
550 obj_format=multi
551fi
552if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
252b5132 553 DEFAULT_EMULATION=`set . $emulations ; echo $2`
4ca72d38
AM
554 # e-mips* has more than one emulation per file, e-i386* has just one at the
555 # moment. If only one emulation is specified, then don't define
556 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
557 case "${obj_format}${emfiles}" in
558 multi* | *mips*)
4ca72d38
AM
559 extra_objects="$extra_objects $emfiles"
560 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
561 esac
252b5132
RH
562fi
563AC_SUBST(extra_objects)
564AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
565AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
566 [Default emulation.])
567
252b5132
RH
568reject_dev_configs=yes
569
570case ${reject_dev_configs}-${dev} in
571 yes-yes) # Oops.
572 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
573 ;;
574esac
575
576AC_SUBST(target_cpu_type)
577AC_SUBST(obj_format)
578AC_SUBST(te_file)
579AC_SUBST(install_tooldir)
580AC_SUBST(atof)
581dnl AC_SUBST(emulation)
582
252b5132
RH
583# do we need the opcodes library?
584case "${need_opcodes}" in
585yes)
586 OPCODES_LIB=../opcodes/libopcodes.la
587 ;;
588esac
589
252b5132
RH
590AC_SUBST(OPCODES_LIB)
591
252b5132
RH
592AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
593AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
594AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
595AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
596AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
597
252b5132
RH
598AC_PROG_YACC
599AM_PROG_LEX
600
8cc9115f 601ALL_LINGUAS="fr tr es rw id"
20e95c23
DJ
602ZW_GNU_GETTEXT_SISTER_DIR
603AM_PO_SUBDIRS
252b5132
RH
604
605AM_MAINTAINER_MODE
d5fbea21 606AM_CONDITIONAL(GENINSRC_NEVER, false)
252b5132
RH
607AC_EXEEXT
608
40fb9820 609AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h limits.h)
252b5132
RH
610
611# Put this here so that autoconf's "cross-compiling" message doesn't confuse
612# people who are not cross-compiling but are compiling cross-assemblers.
613AC_MSG_CHECKING(whether compiling a cross-assembler)
614if test "${host}" = "${target}"; then
615 cross_gas=no
616else
617 cross_gas=yes
618 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
619fi
620AC_MSG_RESULT($cross_gas)
621
622dnl ansidecl.h will deal with const
da594c4a 623dnl AC_C_CONST
252b5132
RH
624AC_FUNC_ALLOCA
625AC_C_INLINE
626
627# VMS doesn't have unlink.
628AC_CHECK_FUNCS(unlink remove, break)
629
630# Some systems don't have sbrk().
631AC_CHECK_FUNCS(sbrk)
632
39bec121
TW
633# do we need the math library?
634case "${need_libm}" in
12e64c2c 635yes)
da594c4a 636 LT_LIB_M
39bec121
TW
637 AC_SUBST(LIBM)
638 ;;
639esac
640
252b5132
RH
641# Some non-ANSI preprocessors botch requoting inside strings. That's bad
642# enough, but on some of those systems, the assert macro relies on requoting
643# working properly!
644GAS_WORKING_ASSERT
645
646# On some systems, the system header files may not declare malloc, realloc,
647# and free. There are places where gas needs these functions to have been
648# declared -- such as when taking their addresses.
649gas_test_headers="
650#ifdef HAVE_MEMORY_H
651#include <memory.h>
652#endif
653#ifdef HAVE_STRING_H
654#include <string.h>
655#else
656#ifdef HAVE_STRINGS_H
657#include <strings.h>
658#endif
659#endif
660#ifdef HAVE_STDLIB_H
661#include <stdlib.h>
662#endif
663#ifdef HAVE_UNISTD_H
664#include <unistd.h>
665#endif
666"
252b5132
RH
667
668# Does errno.h declare errno, or do we have to add a separate declaration
669# for it?
670GAS_CHECK_DECL_NEEDED(errno, f, int f, [
671#ifdef HAVE_ERRNO_H
672#include <errno.h>
673#endif
674])
675
56f36663
NC
676AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
677AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
da594c4a 678[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
56f36663
NC
679gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
680AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
681if test $gas_cv_decl_getopt_unistd_h = yes; then
682 AC_DEFINE([HAVE_DECL_GETOPT], 1,
683 [Is the prototype for getopt in <unistd.h> in the expected format?])
684fi
685
e8a38df5
AL
686GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
687GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
688GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
689GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
690GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
691GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
692
6d74f28b
EB
693AC_CHECK_DECLS([vsnprintf])
694
c973bc5c
NC
695BFD_BINARY_FOPEN
696
31dd3154 697dnl Required for html, pdf, install-pdf and install-html targets.
108a6f8e
CD
698AC_SUBST(datarootdir)
699AC_SUBST(docdir)
700AC_SUBST(htmldir)
31dd3154 701AC_SUBST(pdfdir)
108a6f8e 702
252b5132
RH
703dnl This must come last.
704
705dnl We used to make symlinks to files in the source directory, but now
706dnl we just use the right name for .c files, and create .h files in
707dnl the build directory which include the right .h file. Make sure
708dnl the old symlinks don't exist, so that a reconfigure in an existing
709dnl directory behaves reasonably.
710
13b2be9c
DJ
711AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
712AC_CONFIG_COMMANDS([default],
252b5132
RH
713[rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
714 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
715 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
716 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
717 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
718 if test "x$cgen_cpu_prefix" != x ; then
719 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
20e95c23 720 fi],
252b5132
RH
721[target_cpu_type=${target_cpu_type}
722 cgen_cpu_prefix=${cgen_cpu_prefix}
723 obj_format=${obj_format}
724 te_file=${te_file}])
13b2be9c
DJ
725
726AC_OUTPUT
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