bfd/
[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
13b2be9c 8AC_PREREQ(2.57)
252b5132
RH
9AC_INIT(as.h)
10
13b2be9c
DJ
11dnl Autoconf 2.57 will find the aux dir without this. However, unless
12dnl we specify this explicitly, automake-1.7 will assume that ylwrap is in
13dnl gas/ instead of gas/../.
14AC_CONFIG_AUX_DIR(..)
252b5132 15AC_CANONICAL_SYSTEM
5d64ca4e 16AC_ISC_POSIX
252b5132 17
27b7e12d
AM
18changequote(,)dnl
19BFD_VERSION=`sed -n -e 's/^.._INIT_AUTOMAKE.*,[ ]*\([^ ]*\)[ ]*).*/\1/p' < ${srcdir}/../bfd/configure.in`
20changequote([,])dnl
21AM_INIT_AUTOMAKE(gas, ${BFD_VERSION})
252b5132 22
ce2cded5
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23AC_PROG_CC
24AC_GNU_SOURCE
25
252b5132
RH
26AM_PROG_LIBTOOL
27
252b5132 28AC_ARG_ENABLE(targets,
241a6c40 29[ --enable-targets alternative target configurations besides the primary],
252b5132
RH
30[case "${enableval}" in
31 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
32 ;;
33 no) enable_targets= ;;
34 *) enable_targets=$enableval ;;
35esac])dnl
c43a438d 36
252b5132
RH
37AC_ARG_ENABLE(commonbfdlib,
38[ --enable-commonbfdlib build shared BFD/opcodes/libiberty library],
39[case "${enableval}" in
40 yes) commonbfdlib=true ;;
41 no) commonbfdlib=false ;;
42 *) AC_MSG_ERROR([bad value ${enableval} for BFD commonbfdlib option]) ;;
43esac])dnl
44
c43a438d
AM
45ac_checking=yes
46if grep '^RELEASE=y' ${srcdir}/../bfd/Makefile.am >/dev/null 2>/dev/null ; then
47 ac_checking=
48fi
49AC_ARG_ENABLE(checking,
50[ --enable-checking enable run-time checks],
51[case "${enableval}" in
52 no|none) ac_checking= ;;
53 *) ac_checking=yes ;;
54esac])dnl
55if test x$ac_checking != x ; then
56 AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
57fi
58
252b5132
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59using_cgen=no
60
9e9b66a9 61AM_BINUTILS_WARNINGS
a2d91340 62
252b5132
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63# Generate a header file
64AM_CONFIG_HEADER(config.h:config.in)
65
76a27922
ILT
66# If we are on a DOS filesystem, we must use gdb.ini rather than
67# .gdbinit.
76a27922 68case "${host}" in
591d4689 69 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
76a27922 70 GDBINIT="gdb.ini"
13b2be9c
DJ
71 AC_CONFIG_FILES(gdb.ini:gdbinit.in)
72 ;;
73 *)
74 GDBINIT=".gdbinit"
75 AC_CONFIG_FILES(.gdbinit:gdbinit.in)
76a27922
ILT
76 ;;
77esac
78AC_SUBST(GDBINIT)
79
44f2f9d2
AM
80#We need this for the host. BOUT header is in host order.
81AC_C_BIGENDIAN
82
252b5132
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83te_file=generic
84
85# Makefile target for installing gas in $(tooldir)/bin.
86install_tooldir=install-exec-tooldir
87
88canon_targets=""
15886821 89all_targets=no
252b5132
RH
90if test -n "$enable_targets" ; then
91 for t in `echo $enable_targets | sed 's/,/ /g'`; do
15886821
L
92 if test $t = "all"; then
93 all_targets=yes
94 continue
95 fi
6d83c84b 96 result=`$ac_config_sub $t 2>/dev/null`
252b5132
RH
97 if test -n "$result" ; then
98 canon_targets="$canon_targets $result"
99# else
100# # Permit "all", etc. We don't support it yet though.
101# canon_targets="$canon_targets $t"
102 fi
103 done
104 GAS_UNIQ(canon_targets)
105fi
106
107emulations=""
108
109for this_target in $target $canon_targets ; do
110
14ee9f48
ILT
111 targ=${this_target}
112 . ${srcdir}/configure.tgt
113
114 case ${target_cpu} in
115 crisv32)
116 AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
117 [Default CRIS architecture.])
118 ;;
252b5132
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119 esac
120
121 if test ${this_target} = $target ; then
122 target_cpu_type=${cpu_type}
123 elif test ${target_cpu_type} != ${cpu_type} ; then
124 continue
125 fi
126
14ee9f48 127 generic_target=${cpu_type}-${target_vendor}-${target_os}
252b5132 128 case ${generic_target} in
14ee9f48
ILT
129 i386-*-sco3.2v5*)
130 if test ${this_target} = $target; then
131 AC_DEFINE(SCO_ELF, 1, [Define if defaulting to ELF on SCO 5.])
132 fi
133 ;;
1fe1f39c 134
79500683
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135 i386-*-msdosdjgpp* \
136 | i386-*-go32* \
14ee9f48
ILT
137 | i386-go32-rtems*)
138 AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
139 ;;
79500683 140
14ee9f48
ILT
141 i860-*-*)
142 AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
143 ;;
79500683 144
14ee9f48
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145 mips-sony-bsd*)
146 ;;
79500683 147 mips-*-bsd*)
14ee9f48
ILT
148 AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.)
149 ;;
4101eec8 150
14ee9f48
ILT
151 ppc-*-aix5.*)
152 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
f8fc3443 153 [Define if using AIX 5.2 value for C_WEAKEXT.])
14ee9f48 154 ;;
ed84e695 155 ppc-*-linux-*)
14ee9f48
ILT
156 case "$endian" in
157 big) ;;
158 *) AC_MSG_ERROR(GNU/Linux must be configured big endian) ;;
159 esac
160 ;;
161 ppc-*-solaris*)
162 if test ${this_target} = $target; then
163 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
164 [Define if default target is PowerPC Solaris.])
165 fi
166 if test x${endian} = xbig; then
167 AC_MSG_ERROR(Solaris must be configured little endian)
168 fi
169 ;;
170
171 sh*-*-symbianelf*)
172 AC_DEFINE(TARGET_SYMBIAN, 1, [Define if target is Symbian OS.])
173 ;;
252b5132
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174 esac
175
176 if test ${this_target} = $target ; then
177 endian_def=
178 if test x${endian} = xbig; then
179 endian_def=1
180 elif test x${endian} = xlittle; then
181 endian_def=0
182 fi
183 if test x${endian_def} != x; then
184 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
185 [Define as 1 if big endian.])
186 fi
187 fi
188
252b5132
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189# Other random stuff.
190
316f5878
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191 case ${cpu_type} in
192 mips)
193 # Set mips_cpu to the name of the default CPU.
194 case ${target_cpu} in
195 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
196 mips_cpu=from-abi
197 ;;
198 mipsisa32 | mipsisa32el)
199 mips_cpu=mips32
200 ;;
af7ee8bf
CD
201 mipsisa32r2 | mipsisa32r2el)
202 mips_cpu=mips32r2
203 ;;
316f5878
RS
204 mipsisa64 | mipsisa64el)
205 mips_cpu=mips64
206 ;;
5f74bc13
CD
207 mipsisa64r2 | mipsisa64r2el)
208 mips_cpu=mips64r2
209 ;;
316f5878
RS
210 mipstx39 | mipstx39el)
211 mips_cpu=r3900
212 ;;
8f6847cb
RS
213 mips64vr | mips64vrel)
214 mips_cpu=vr4100
215 ;;
5f74bc13 216 mipsisa32r2* | mipsisa64r2*)
af7ee8bf
CD
217changequote(,)dnl
218 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
219changequote([,])dnl
220 ;;
316f5878
RS
221 mips64* | mipsisa64* | mipsisa32*)
222changequote(,)dnl
223 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
224changequote([,])dnl
225 ;;
226 *)
227 AC_ERROR($target_cpu isn't a supported MIPS CPU name)
228 ;;
229 esac
230 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
231 # binaries. It's a GNU extension that some OSes don't understand.
232 # The value only matters on ELF targets.
233 case ${target} in
234 *-*-irix*)
235 use_e_mips_abi_o32=0
236 ;;
237 *)
238 use_e_mips_abi_o32=1
239 ;;
240 esac
241 # Decide whether to generate 32-bit or 64-bit code by default.
242 # Used to resolve -march=from-abi when an embedded ABI is selected.
243 case ${target} in
244 mips64*-*-* | mipsisa64*-*-*)
245 mips_default_64bit=1
246 ;;
247 *)
248 mips_default_64bit=0
249 ;;
250 esac
cac012d6
AO
251 # Decide which ABI to target by default.
252 case ${target} in
253 mips64*-linux* | mips-sgi-irix6*)
254 mips_default_abi=N32_ABI
255 ;;
256 mips*-linux*)
257 mips_default_abi=O32_ABI
258 ;;
26eebcf5
MK
259 mips64*-openbsd*)
260 mips_default_abi=N64_ABI
261 ;;
cac012d6
AO
262 *)
263 mips_default_abi=NO_ABI
264 ;;
265 esac
316f5878
RS
266 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
267 [Default CPU for MIPS targets. ])
268 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
269 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
270 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
271 [Generate 64-bit code by default on MIPS targets. ])
cac012d6
AO
272 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
273 [Choose a default ABI for MIPS targets. ])
316f5878
RS
274 ;;
275 esac
276
252b5132
RH
277 # Do we need the opcodes library?
278 case ${cpu_type} in
0b1cf022 279 vax | tic30)
252b5132
RH
280 ;;
281
282 *)
283 need_opcodes=yes
284
285 case "${enable_shared}" in
286 yes) shared_opcodes=true ;;
287 *opcodes*) shared_opcodes=true ;;
288 *) shared_opcodes=false ;;
289 esac
252b5132
RH
290 ;;
291 esac
292
293 # Any other special object files needed ?
294 case ${cpu_type} in
07c1b327
CM
295
296 bfin)
297 echo ${extra_objects} | grep -s "bfin-parse.o"
298 if test $? -ne 0 ; then
299 extra_objects="$extra_objects bfin-parse.o"
300 fi
301
302 echo ${extra_objects} | grep -s "bfin-lex.o"
303 if test $? -ne 0 ; then
304 extra_objects="$extra_objects bfin-lex.o"
305 fi
306 ;;
307
1c53c80d 308 fr30 | ip2k | iq2000 | m32r | openrisc)
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309 using_cgen=yes
310 ;;
311
49f58d10
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312 m32c)
313 using_cgen=yes
314 ;;
0ebb9a87
DB
315 frv)
316 using_cgen=yes
317 ;;
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318 m68k)
319 case ${extra_objects} in
320 *m68k-parse.o*) ;;
321 *) extra_objects="$extra_objects m68k-parse.o" ;;
322 esac
323 ;;
324
280d71bf
DB
325 mep)
326 using_cgen=yes
327 ;;
328
252b5132 329 mips)
12e64c2c 330 echo ${extra_objects} | grep -s "itbl-parse.o"
252b5132
RH
331 if test $? -ne 0 ; then
332 extra_objects="$extra_objects itbl-parse.o"
333 fi
334
12e64c2c 335 echo ${extra_objects} | grep -s "itbl-lex.o"
252b5132
RH
336 if test $? -ne 0 ; then
337 extra_objects="$extra_objects itbl-lex.o"
338 fi
339
12e64c2c 340 echo ${extra_objects} | grep -s "itbl-ops.o"
252b5132
RH
341 if test $? -ne 0 ; then
342 extra_objects="$extra_objects itbl-ops.o"
343 fi
344 ;;
345
4970f871 346 mt)
047af9ef
AH
347 using_cgen=yes
348 ;;
349
c1e4eef7 350 i386 | s390 | sparc)
252b5132
RH
351 if test $this_target = $target ; then
352 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
353 fi
354 ;;
93fbbb04
GK
355
356 xstormy16)
357 using_cgen=yes
358 ;;
359
d70c5fc7
NC
360 xc16x)
361 using_cgen=yes
362 ;;
363
e0001a05
NC
364 xtensa)
365 echo ${extra_objects} | grep -s "xtensa-relax.o"
366 if test $? -ne 0 ; then
367 extra_objects="$extra_objects xtensa-relax.o"
368 fi
369 ;;
370
252b5132
RH
371 *)
372 ;;
373 esac
374
375 if test $using_cgen = yes ; then
376 case "x${extra_objects}" in
377 *cgen.o*) ;;
378 *) extra_objects="$extra_objects cgen.o" ;;
379 esac
380 fi
381
382# See if we really can support this configuration with the emulation code.
383
384 if test $this_target = $target ; then
252b5132
RH
385 obj_format=$fmt
386 te_file=$em
252b5132
RH
387 fi
388
389# From target name and format, produce a list of supported emulations.
390
391 case ${generic_target}-${fmt} in
392 mips-*-irix5*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
4008bd9b 393 mips*-*-linux*-*) case "$endian" in
df3bcd6f
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394 big) emulation="mipsbelf mipslelf mipself" ;;
395 *) emulation="mipslelf mipsbelf mipself" ;;
252b5132
RH
396 esac ;;
397 mips-*-lnews*-ecoff) ;;
398 mips-*-*-ecoff) case "$endian" in
399 big) emulation="mipsbecoff mipslecoff mipsecoff" ;;
400 *) emulation="mipslecoff mipsbecoff mipsecoff" ;;
401 esac ;;
402 mips-*-*-elf) case "$endian" in
403 big) emulation="mipsbelf mipslelf mipself" ;;
404 *) emulation="mipslelf mipsbelf mipself" ;;
252b5132 405 esac ;;
906fac54 406 mips-*-sysv4*MP*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
119caedd
L
407 # i386-pc-pe-coff != i386-pc-coff.
408 i386-*-pe-coff) ;;
4c63da97
AM
409 # Uncommenting the next line will turn on support for i386 AOUT
410 # for the default linux configuration
411 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
412 #
413 i386-*-aout) emulation="i386aout" ;;
4ca72d38 414 i386-*-coff) emulation="i386coff" ;;
4c63da97 415 i386-*-elf) emulation="i386elf" ;;
3bcbcc3d 416
f9c19112
HPN
417 # Always all formats. The first stated emulation becomes the default.
418 cris-*-*aout*) emulation="crisaout criself" ;;
419 cris-*-*) emulation="criself crisaout" ;;
252b5132
RH
420 esac
421
422 emulations="$emulations $emulation"
423
424done
425
15886821
L
426# Turn on all targets if possible
427if test ${all_targets} = "yes"; then
428 case ${target_cpu_type} in
429 i386)
430 case ${obj_format} in
431 aout)
432 emulations="$emulations i386coff i386elf"
433 ;;
434 coff)
435 emulations="$emulations i386aout i386elf"
436 ;;
437 elf)
438 emulations="$emulations i386aout i386coff"
439 ;;
440 esac
441 ;;
99ad8390
NC
442 x86_64)
443 case ${obj_format} in
444 aout)
445 emulations="$emulations i386coff i386elf"
446 ;;
447 coff)
448 emulations="$emulations i386aout i386elf"
449 ;;
450 elf)
451 emulations="$emulations i386aout i386coff"
452 ;;
453 esac
454 ;;
15886821
L
455 esac
456fi
457
252b5132
RH
458# Assign floating point type. Most processors with FP support
459# IEEE FP. On those that don't support FP at all, usually IEEE
460# is emulated.
461case ${target_cpu} in
12e64c2c 462 vax | pdp11 ) atof=vax ;;
252b5132
RH
463 *) atof=ieee ;;
464esac
465
466case "${obj_format}" in
467 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
468esac
469
470# Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
471cgen_cpu_prefix=""
472if test $using_cgen = yes ; then
473 case ${target_cpu} in
474 *) cgen_cpu_prefix=${target_cpu} ;;
475 esac
476 AC_SUBST(cgen_cpu_prefix)
477 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
478fi
479
480dnl
481dnl Make sure the desired support files exist.
482dnl
483
484if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
485 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
486fi
487
488if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
489 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
490fi
491
252b5132
RH
492# Some COFF configurations want these random other flags set.
493case ${obj_format} in
494 coff)
495 case ${target_cpu_type} in
496 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
497 m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
498 m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
99ad8390 499 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
252b5132
RH
500 esac
501 ;;
502esac
503
504# Getting this done right is going to be a bitch. Each configuration specified
7be1c489
AM
505# with --enable-targets=... should be checked for environment, format, cpu
506# setting.
252b5132
RH
507#
508# For each configuration, the necessary object file support code must be linked
509# in. This might be only one, it might be up to four. The necessary emulation
510# code needs to be provided, too.
511#
512# And then there's "--enable-targets=all"....
513#
514# For now, just always do it for MIPS ELF or ECOFF configurations. Sigh.
515
516formats="${obj_format}"
517emfiles=""
518EMULATIONS=""
519GAS_UNIQ(emulations)
520for em in . $emulations ; do
521 case $em in
522 .) continue ;;
97238fbd 523 mipsbelf | mipslelf | mipself)
252b5132 524 fmt=elf file=mipself ;;
97238fbd 525 mipsbecoff | mipslecoff | mipsecoff)
252b5132 526 fmt=ecoff file=mipsecoff ;;
0aa5d426
HPN
527 *coff)
528 fmt=coff file=$em ;;
529 *aout)
530 fmt=aout file=$em ;;
531 *elf)
532 fmt=elf file=$em ;;
252b5132
RH
533 esac
534 formats="$formats $fmt"
535 emfiles="$emfiles e-$file.o"
536 EMULATIONS="$EMULATIONS &$em,"
537done
538GAS_UNIQ(formats)
539GAS_UNIQ(emfiles)
540if test `set . $formats ; shift ; echo $#` -gt 1 ; then
541 for fmt in $formats ; do
542 case $fmt in
543 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
544 bout) AC_DEFINE(OBJ_MAYBE_BOUT, 1, [b.out support?]) ;;
545 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
546 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
547 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
548 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
252b5132 549 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
252b5132
RH
550 esac
551 extra_objects="$extra_objects obj-$fmt.o"
552 done
553 obj_format=multi
554fi
555if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
252b5132 556 DEFAULT_EMULATION=`set . $emulations ; echo $2`
4ca72d38
AM
557 # e-mips* has more than one emulation per file, e-i386* has just one at the
558 # moment. If only one emulation is specified, then don't define
559 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
560 case "${obj_format}${emfiles}" in
561 multi* | *mips*)
4ca72d38
AM
562 extra_objects="$extra_objects $emfiles"
563 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
564 esac
252b5132
RH
565fi
566AC_SUBST(extra_objects)
567AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
568AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
569 [Default emulation.])
570
252b5132
RH
571reject_dev_configs=yes
572
573case ${reject_dev_configs}-${dev} in
574 yes-yes) # Oops.
575 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
576 ;;
577esac
578
579AC_SUBST(target_cpu_type)
580AC_SUBST(obj_format)
581AC_SUBST(te_file)
582AC_SUBST(install_tooldir)
583AC_SUBST(atof)
584dnl AC_SUBST(emulation)
585
252b5132
RH
586# do we need the opcodes library?
587case "${need_opcodes}" in
588yes)
589 OPCODES_LIB=../opcodes/libopcodes.la
590 ;;
591esac
592
252b5132
RH
593AC_SUBST(OPCODES_LIB)
594
252b5132
RH
595AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
596AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
597AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
598AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
599AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
600
252b5132
RH
601AC_PROG_YACC
602AM_PROG_LEX
603
0d6af1ab 604ALL_LINGUAS="fr tr es rw"
20e95c23
DJ
605ZW_GNU_GETTEXT_SISTER_DIR
606AM_PO_SUBDIRS
252b5132
RH
607
608AM_MAINTAINER_MODE
d5fbea21 609AM_CONDITIONAL(GENINSRC_NEVER, false)
252b5132
RH
610AC_EXEEXT
611
40fb9820 612AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h limits.h)
252b5132
RH
613
614# Put this here so that autoconf's "cross-compiling" message doesn't confuse
615# people who are not cross-compiling but are compiling cross-assemblers.
616AC_MSG_CHECKING(whether compiling a cross-assembler)
617if test "${host}" = "${target}"; then
618 cross_gas=no
619else
620 cross_gas=yes
621 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
622fi
623AC_MSG_RESULT($cross_gas)
624
625dnl ansidecl.h will deal with const
626dnl AC_CONST
627AC_FUNC_ALLOCA
628AC_C_INLINE
629
630# VMS doesn't have unlink.
631AC_CHECK_FUNCS(unlink remove, break)
632
633# Some systems don't have sbrk().
634AC_CHECK_FUNCS(sbrk)
635
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TW
636# do we need the math library?
637case "${need_libm}" in
12e64c2c 638yes)
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639 AC_CHECK_LIBM
640 AC_SUBST(LIBM)
641 ;;
642esac
643
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644# Some non-ANSI preprocessors botch requoting inside strings. That's bad
645# enough, but on some of those systems, the assert macro relies on requoting
646# working properly!
647GAS_WORKING_ASSERT
648
649# On some systems, the system header files may not declare malloc, realloc,
650# and free. There are places where gas needs these functions to have been
651# declared -- such as when taking their addresses.
652gas_test_headers="
653#ifdef HAVE_MEMORY_H
654#include <memory.h>
655#endif
656#ifdef HAVE_STRING_H
657#include <string.h>
658#else
659#ifdef HAVE_STRINGS_H
660#include <strings.h>
661#endif
662#endif
663#ifdef HAVE_STDLIB_H
664#include <stdlib.h>
665#endif
666#ifdef HAVE_UNISTD_H
667#include <unistd.h>
668#endif
669"
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670
671# Does errno.h declare errno, or do we have to add a separate declaration
672# for it?
673GAS_CHECK_DECL_NEEDED(errno, f, int f, [
674#ifdef HAVE_ERRNO_H
675#include <errno.h>
676#endif
677])
678
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679AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
680AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
681[AC_TRY_COMPILE([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);],
682gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
683AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
684if test $gas_cv_decl_getopt_unistd_h = yes; then
685 AC_DEFINE([HAVE_DECL_GETOPT], 1,
686 [Is the prototype for getopt in <unistd.h> in the expected format?])
687fi
688
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AL
689GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
690GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
691GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
692GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
693GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
694GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
695
6d74f28b
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696AC_CHECK_DECLS([vsnprintf])
697
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698BFD_BINARY_FOPEN
699
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700dnl Required for html and install-html targets.
701AC_SUBST(datarootdir)
702AC_SUBST(docdir)
703AC_SUBST(htmldir)
704
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705dnl This must come last.
706
707dnl We used to make symlinks to files in the source directory, but now
708dnl we just use the right name for .c files, and create .h files in
709dnl the build directory which include the right .h file. Make sure
710dnl the old symlinks don't exist, so that a reconfigure in an existing
711dnl directory behaves reasonably.
712
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713AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
714AC_CONFIG_COMMANDS([default],
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715[rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
716 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
717 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
718 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
719 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
720 if test "x$cgen_cpu_prefix" != x ; then
721 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
20e95c23 722 fi],
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723[target_cpu_type=${target_cpu_type}
724 cgen_cpu_prefix=${cgen_cpu_prefix}
725 obj_format=${obj_format}
726 te_file=${te_file}])
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727
728AC_OUTPUT
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