bfd/
[deliverable/binutils-gdb.git] / gas / configure.in
CommitLineData
252b5132
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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
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9AC_INIT(as.h)
10
13b2be9c
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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
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18changequote(,)dnl
19BFD_VERSION=`sed -n -e 's/^.._INIT_AUTOMAKE.*,[ ]*\([^ ]*\)[ ]*).*/\1/p' < ${srcdir}/../bfd/configure.in`
20changequote([,])dnl
21AM_INIT_AUTOMAKE(gas, ${BFD_VERSION})
252b5132
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22
23AM_PROG_LIBTOOL
24
25user_bfd_gas=
26AC_ARG_ENABLE(bfd-assembler,
27[ --enable-bfd-assembler use BFD back end for writing object files],
28[case "${enableval}" in
29 yes) need_bfd=yes user_bfd_gas=yes ;;
30 no) user_bfd_gas=no ;;
31 *) AC_MSG_ERROR(bad value ${enableval} given for bfd-assembler option) ;;
32esac])dnl
33AC_ARG_ENABLE(targets,
34[ targets alternative target configurations besides the primary],
35[case "${enableval}" in
36 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
37 ;;
38 no) enable_targets= ;;
39 *) enable_targets=$enableval ;;
40esac])dnl
41AC_ARG_ENABLE(commonbfdlib,
42[ --enable-commonbfdlib build shared BFD/opcodes/libiberty library],
43[case "${enableval}" in
44 yes) commonbfdlib=true ;;
45 no) commonbfdlib=false ;;
46 *) AC_MSG_ERROR([bad value ${enableval} for BFD commonbfdlib option]) ;;
47esac])dnl
48
49using_cgen=no
50
9e9b66a9 51AM_BINUTILS_WARNINGS
a2d91340 52
252b5132
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53# Generate a header file
54AM_CONFIG_HEADER(config.h:config.in)
55
76a27922
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56# If we are on a DOS filesystem, we must use gdb.ini rather than
57# .gdbinit.
76a27922 58case "${host}" in
591d4689 59 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
76a27922 60 GDBINIT="gdb.ini"
13b2be9c
DJ
61 AC_CONFIG_FILES(gdb.ini:gdbinit.in)
62 ;;
63 *)
64 GDBINIT=".gdbinit"
65 AC_CONFIG_FILES(.gdbinit:gdbinit.in)
76a27922
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66 ;;
67esac
68AC_SUBST(GDBINIT)
69
44f2f9d2
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70#We need this for the host. BOUT header is in host order.
71AC_C_BIGENDIAN
72
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73te_file=generic
74
75# Makefile target for installing gas in $(tooldir)/bin.
76install_tooldir=install-exec-tooldir
77
78canon_targets=""
15886821 79all_targets=no
252b5132
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80if test -n "$enable_targets" ; then
81 for t in `echo $enable_targets | sed 's/,/ /g'`; do
15886821
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82 if test $t = "all"; then
83 all_targets=yes
84 continue
85 fi
6d83c84b 86 result=`$ac_config_sub $t 2>/dev/null`
252b5132
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87 if test -n "$result" ; then
88 canon_targets="$canon_targets $result"
89# else
90# # Permit "all", etc. We don't support it yet though.
91# canon_targets="$canon_targets $t"
92 fi
93 done
94 GAS_UNIQ(canon_targets)
95fi
96
97emulations=""
98
99for this_target in $target $canon_targets ; do
100
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101 targ=${this_target}
102 . ${srcdir}/configure.tgt
103
104 case ${target_cpu} in
105 crisv32)
106 AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
107 [Default CRIS architecture.])
108 ;;
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109 esac
110
111 if test ${this_target} = $target ; then
112 target_cpu_type=${cpu_type}
113 elif test ${target_cpu_type} != ${cpu_type} ; then
114 continue
115 fi
116
14ee9f48 117 generic_target=${cpu_type}-${target_vendor}-${target_os}
252b5132 118 case ${generic_target} in
14ee9f48
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119 i386-*-sco3.2v5*)
120 if test ${this_target} = $target; then
121 AC_DEFINE(SCO_ELF, 1, [Define if defaulting to ELF on SCO 5.])
122 fi
123 ;;
1fe1f39c 124
79500683
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125 i386-*-msdosdjgpp* \
126 | i386-*-go32* \
14ee9f48
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127 | i386-go32-rtems*)
128 AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
129 ;;
79500683 130
14ee9f48
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131 i860-*-*)
132 AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
133 ;;
79500683 134
14ee9f48
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135 mips-sony-bsd*)
136 ;;
79500683 137 mips-*-bsd*)
14ee9f48
ILT
138 AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.)
139 ;;
4101eec8 140
14ee9f48
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141 ppc-*-aix5.*)
142 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
f8fc3443 143 [Define if using AIX 5.2 value for C_WEAKEXT.])
14ee9f48 144 ;;
ed84e695 145 ppc-*-linux-*)
14ee9f48
ILT
146 case "$endian" in
147 big) ;;
148 *) AC_MSG_ERROR(GNU/Linux must be configured big endian) ;;
149 esac
150 ;;
151 ppc-*-solaris*)
152 if test ${this_target} = $target; then
153 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
154 [Define if default target is PowerPC Solaris.])
155 fi
156 if test x${endian} = xbig; then
157 AC_MSG_ERROR(Solaris must be configured little endian)
158 fi
159 ;;
160
161 sh*-*-symbianelf*)
162 AC_DEFINE(TARGET_SYMBIAN, 1, [Define if target is Symbian OS.])
163 ;;
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164 esac
165
166 if test ${this_target} = $target ; then
167 endian_def=
168 if test x${endian} = xbig; then
169 endian_def=1
170 elif test x${endian} = xlittle; then
171 endian_def=0
172 fi
173 if test x${endian_def} != x; then
174 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
175 [Define as 1 if big endian.])
176 fi
177 fi
178
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179# Other random stuff.
180
316f5878
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181 case ${cpu_type} in
182 mips)
183 # Set mips_cpu to the name of the default CPU.
184 case ${target_cpu} in
185 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
186 mips_cpu=from-abi
187 ;;
188 mipsisa32 | mipsisa32el)
189 mips_cpu=mips32
190 ;;
af7ee8bf
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191 mipsisa32r2 | mipsisa32r2el)
192 mips_cpu=mips32r2
193 ;;
316f5878
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194 mipsisa64 | mipsisa64el)
195 mips_cpu=mips64
196 ;;
5f74bc13
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197 mipsisa64r2 | mipsisa64r2el)
198 mips_cpu=mips64r2
199 ;;
316f5878
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200 mipstx39 | mipstx39el)
201 mips_cpu=r3900
202 ;;
8f6847cb
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203 mips64vr | mips64vrel)
204 mips_cpu=vr4100
205 ;;
5f74bc13 206 mipsisa32r2* | mipsisa64r2*)
af7ee8bf
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207changequote(,)dnl
208 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
209changequote([,])dnl
210 ;;
316f5878
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211 mips64* | mipsisa64* | mipsisa32*)
212changequote(,)dnl
213 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
214changequote([,])dnl
215 ;;
216 *)
217 AC_ERROR($target_cpu isn't a supported MIPS CPU name)
218 ;;
219 esac
220 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
221 # binaries. It's a GNU extension that some OSes don't understand.
222 # The value only matters on ELF targets.
223 case ${target} in
224 *-*-irix*)
225 use_e_mips_abi_o32=0
226 ;;
227 *)
228 use_e_mips_abi_o32=1
229 ;;
230 esac
231 # Decide whether to generate 32-bit or 64-bit code by default.
232 # Used to resolve -march=from-abi when an embedded ABI is selected.
233 case ${target} in
234 mips64*-*-* | mipsisa64*-*-*)
235 mips_default_64bit=1
236 ;;
237 *)
238 mips_default_64bit=0
239 ;;
240 esac
cac012d6
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241 # Decide which ABI to target by default.
242 case ${target} in
243 mips64*-linux* | mips-sgi-irix6*)
244 mips_default_abi=N32_ABI
245 ;;
246 mips*-linux*)
247 mips_default_abi=O32_ABI
248 ;;
249 *)
250 mips_default_abi=NO_ABI
251 ;;
252 esac
316f5878
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253 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
254 [Default CPU for MIPS targets. ])
255 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
256 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
257 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
258 [Generate 64-bit code by default on MIPS targets. ])
cac012d6
AO
259 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
260 [Choose a default ABI for MIPS targets. ])
316f5878
RS
261 ;;
262 esac
263
252b5132
RH
264 # Do we need the opcodes library?
265 case ${cpu_type} in
266 vax | i386 | tic30)
267 ;;
268
269 *)
270 need_opcodes=yes
271
272 case "${enable_shared}" in
273 yes) shared_opcodes=true ;;
274 *opcodes*) shared_opcodes=true ;;
275 *) shared_opcodes=false ;;
276 esac
277 if test "${shared_opcodes}" = "true"; then
278 # A shared libopcodes must be linked against libbfd.
279 need_bfd=yes
280 fi
281 ;;
282 esac
283
284 # Any other special object files needed ?
285 case ${cpu_type} in
1c53c80d 286 fr30 | ip2k | iq2000 | m32r | openrisc)
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287 using_cgen=yes
288 ;;
289
0ebb9a87
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290 frv)
291 using_cgen=yes
292 ;;
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293 m68k)
294 case ${extra_objects} in
295 *m68k-parse.o*) ;;
296 *) extra_objects="$extra_objects m68k-parse.o" ;;
297 esac
298 ;;
299
300 mips)
301 echo ${extra_objects} | grep -s "itbl-parse.o"
302 if test $? -ne 0 ; then
303 extra_objects="$extra_objects itbl-parse.o"
304 fi
305
306 echo ${extra_objects} | grep -s "itbl-lex.o"
307 if test $? -ne 0 ; then
308 extra_objects="$extra_objects itbl-lex.o"
309 fi
310
311 echo ${extra_objects} | grep -s "itbl-ops.o"
312 if test $? -ne 0 ; then
313 extra_objects="$extra_objects itbl-ops.o"
314 fi
315 ;;
316
c1e4eef7 317 i386 | s390 | sparc)
252b5132
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318 if test $this_target = $target ; then
319 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
320 fi
321 ;;
93fbbb04
GK
322
323 xstormy16)
324 using_cgen=yes
325 ;;
326
e0001a05
NC
327 xtensa)
328 echo ${extra_objects} | grep -s "xtensa-relax.o"
329 if test $? -ne 0 ; then
330 extra_objects="$extra_objects xtensa-relax.o"
331 fi
332 ;;
333
252b5132
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334 *)
335 ;;
336 esac
337
338 if test $using_cgen = yes ; then
339 case "x${extra_objects}" in
340 *cgen.o*) ;;
341 *) extra_objects="$extra_objects cgen.o" ;;
342 esac
343 fi
344
345# See if we really can support this configuration with the emulation code.
346
347 if test $this_target = $target ; then
348 primary_bfd_gas=$bfd_gas
349 obj_format=$fmt
350 te_file=$em
351
352 if test $bfd_gas = no ; then
353 # Can't support other configurations this way.
354 break
355 fi
356 elif test $bfd_gas = no ; then
357 # Can't support this configuration.
358 break
359 fi
360
361# From target name and format, produce a list of supported emulations.
362
363 case ${generic_target}-${fmt} in
364 mips-*-irix5*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
4008bd9b 365 mips*-*-linux*-*) case "$endian" in
df3bcd6f
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366 big) emulation="mipsbelf mipslelf mipself" ;;
367 *) emulation="mipslelf mipsbelf mipself" ;;
252b5132
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368 esac ;;
369 mips-*-lnews*-ecoff) ;;
370 mips-*-*-ecoff) case "$endian" in
371 big) emulation="mipsbecoff mipslecoff mipsecoff" ;;
372 *) emulation="mipslecoff mipsbecoff mipsecoff" ;;
373 esac ;;
374 mips-*-*-elf) case "$endian" in
375 big) emulation="mipsbelf mipslelf mipself" ;;
376 *) emulation="mipslelf mipsbelf mipself" ;;
252b5132 377 esac ;;
906fac54 378 mips-*-sysv4*MP*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
119caedd
L
379 # i386-pc-pe-coff != i386-pc-coff.
380 i386-*-pe-coff) ;;
4c63da97
AM
381 # Uncommenting the next line will turn on support for i386 AOUT
382 # for the default linux configuration
383 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
384 #
385 i386-*-aout) emulation="i386aout" ;;
4ca72d38 386 i386-*-coff) emulation="i386coff" ;;
4c63da97 387 i386-*-elf) emulation="i386elf" ;;
3bcbcc3d 388
f9c19112
HPN
389 # Always all formats. The first stated emulation becomes the default.
390 cris-*-*aout*) emulation="crisaout criself" ;;
391 cris-*-*) emulation="criself crisaout" ;;
252b5132
RH
392 esac
393
394 emulations="$emulations $emulation"
395
396done
397
15886821
L
398# Turn on all targets if possible
399if test ${all_targets} = "yes"; then
400 case ${target_cpu_type} in
401 i386)
402 case ${obj_format} in
403 aout)
404 emulations="$emulations i386coff i386elf"
405 ;;
406 coff)
407 emulations="$emulations i386aout i386elf"
408 ;;
409 elf)
410 emulations="$emulations i386aout i386coff"
411 ;;
412 esac
413 ;;
414 esac
415fi
416
252b5132
RH
417# Assign floating point type. Most processors with FP support
418# IEEE FP. On those that don't support FP at all, usually IEEE
419# is emulated.
420case ${target_cpu} in
421 vax | tahoe ) atof=${target_cpu} ;;
e135f41b 422 pdp11) atof=vax ;;
252b5132
RH
423 *) atof=ieee ;;
424esac
425
426case "${obj_format}" in
427 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
428esac
429
430# Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
431cgen_cpu_prefix=""
432if test $using_cgen = yes ; then
433 case ${target_cpu} in
434 *) cgen_cpu_prefix=${target_cpu} ;;
435 esac
436 AC_SUBST(cgen_cpu_prefix)
437 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
438fi
439
440dnl
441dnl Make sure the desired support files exist.
442dnl
443
444if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
445 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
446fi
447
448if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
449 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
450fi
451
452case ${user_bfd_gas}-${primary_bfd_gas} in
453 yes-yes | no-no)
454 # We didn't override user's choice.
455 ;;
456 no-yes)
457 AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
458 ;;
459 no-preferred)
460 primary_bfd_gas=no
461 ;;
462 *-preferred)
463 primary_bfd_gas=yes
464 ;;
465 yes-*)
466 primary_bfd_gas=yes
467 ;;
468 -*)
469 # User specified nothing.
470 ;;
471esac
472
473# Some COFF configurations want these random other flags set.
474case ${obj_format} in
475 coff)
476 case ${target_cpu_type} in
477 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
478 m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
479 m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
480 esac
481 ;;
482esac
483
484# Getting this done right is going to be a bitch. Each configuration specified
485# with --enable-targets=... should be checked for environment, format, cpu, and
486# bfd_gas setting.
487#
488# For each configuration, the necessary object file support code must be linked
489# in. This might be only one, it might be up to four. The necessary emulation
490# code needs to be provided, too.
491#
492# And then there's "--enable-targets=all"....
493#
494# For now, just always do it for MIPS ELF or ECOFF configurations. Sigh.
495
496formats="${obj_format}"
497emfiles=""
498EMULATIONS=""
499GAS_UNIQ(emulations)
500for em in . $emulations ; do
501 case $em in
502 .) continue ;;
97238fbd 503 mipsbelf | mipslelf | mipself)
252b5132 504 fmt=elf file=mipself ;;
97238fbd 505 mipsbecoff | mipslecoff | mipsecoff)
252b5132 506 fmt=ecoff file=mipsecoff ;;
0aa5d426
HPN
507 *coff)
508 fmt=coff file=$em ;;
509 *aout)
510 fmt=aout file=$em ;;
511 *elf)
512 fmt=elf file=$em ;;
252b5132
RH
513 esac
514 formats="$formats $fmt"
515 emfiles="$emfiles e-$file.o"
516 EMULATIONS="$EMULATIONS &$em,"
517done
518GAS_UNIQ(formats)
519GAS_UNIQ(emfiles)
520if test `set . $formats ; shift ; echo $#` -gt 1 ; then
521 for fmt in $formats ; do
522 case $fmt in
523 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
524 bout) AC_DEFINE(OBJ_MAYBE_BOUT, 1, [b.out support?]) ;;
525 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
526 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
527 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
528 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
529 hp300) AC_DEFINE(OBJ_MAYBE_HP300, 1, [HP300 support?]) ;;
530 ieee) AC_DEFINE(OBJ_MAYBE_IEEE, 1, [IEEE support?]) ;;
531 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
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532 esac
533 extra_objects="$extra_objects obj-$fmt.o"
534 done
535 obj_format=multi
536fi
537if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
252b5132 538 DEFAULT_EMULATION=`set . $emulations ; echo $2`
4ca72d38
AM
539 # e-mips* has more than one emulation per file, e-i386* has just one at the
540 # moment. If only one emulation is specified, then don't define
541 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
542 case "${obj_format}${emfiles}" in
543 multi* | *mips*)
4ca72d38
AM
544 extra_objects="$extra_objects $emfiles"
545 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
546 esac
252b5132
RH
547fi
548AC_SUBST(extra_objects)
549AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
550AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
551 [Default emulation.])
552
553case ${primary_bfd_gas}-${target_cpu_type}-${obj_format} in
554 yes-*-coff) need_bfd=yes ;;
555 no-*-coff) need_bfd=yes
556 AC_DEFINE(MANY_SEGMENTS, 1, [old COFF support?]) ;;
557esac
558
559reject_dev_configs=yes
560
561case ${reject_dev_configs}-${dev} in
562 yes-yes) # Oops.
563 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
564 ;;
565esac
566
567AC_SUBST(target_cpu_type)
568AC_SUBST(obj_format)
569AC_SUBST(te_file)
570AC_SUBST(install_tooldir)
571AC_SUBST(atof)
572dnl AC_SUBST(emulation)
573
574case "${primary_bfd_gas}" in
575 yes) AC_DEFINE(BFD_ASSEMBLER, 1, [Use BFD interface?])
576 need_bfd=yes ;;
577esac
578
579# do we need the opcodes library?
580case "${need_opcodes}" in
581yes)
582 OPCODES_LIB=../opcodes/libopcodes.la
583 ;;
584esac
585
586case "${need_bfd}" in
587yes)
588 BFDLIB=../bfd/libbfd.la
4001ad8c 589 BFDVER_H=../bfd/bfdver.h
29589b0c 590 ALL_OBJ_DEPS="$ALL_OBJ_DEPS"' ../bfd/bfd.h $(INCDIR)/symcat.h'
252b5132
RH
591 ;;
592esac
593
594AC_SUBST(BFDLIB)
595AC_SUBST(OPCODES_LIB)
596
4001ad8c 597AC_SUBST(BFDVER_H)
252b5132
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598AC_SUBST(ALL_OBJ_DEPS)
599
600AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
601AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
602AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
603AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
604AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
605
606AC_PROG_CC
607
608AC_PROG_YACC
609AM_PROG_LEX
610
0d6af1ab 611ALL_LINGUAS="fr tr es rw"
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612CY_GNU_GETTEXT
613
614AM_MAINTAINER_MODE
615AC_EXEEXT
616
617AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h)
618
619# Put this here so that autoconf's "cross-compiling" message doesn't confuse
620# people who are not cross-compiling but are compiling cross-assemblers.
621AC_MSG_CHECKING(whether compiling a cross-assembler)
622if test "${host}" = "${target}"; then
623 cross_gas=no
624else
625 cross_gas=yes
626 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
627fi
628AC_MSG_RESULT($cross_gas)
629
630dnl ansidecl.h will deal with const
631dnl AC_CONST
632AC_FUNC_ALLOCA
633AC_C_INLINE
634
635# VMS doesn't have unlink.
636AC_CHECK_FUNCS(unlink remove, break)
637
638# Some systems don't have sbrk().
639AC_CHECK_FUNCS(sbrk)
640
39bec121
TW
641# do we need the math library?
642case "${need_libm}" in
643yes)
644 AC_CHECK_LIBM
645 AC_SUBST(LIBM)
646 ;;
647esac
648
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649# Some non-ANSI preprocessors botch requoting inside strings. That's bad
650# enough, but on some of those systems, the assert macro relies on requoting
651# working properly!
652GAS_WORKING_ASSERT
653
654# On some systems, the system header files may not declare malloc, realloc,
655# and free. There are places where gas needs these functions to have been
656# declared -- such as when taking their addresses.
657gas_test_headers="
658#ifdef HAVE_MEMORY_H
659#include <memory.h>
660#endif
661#ifdef HAVE_STRING_H
662#include <string.h>
663#else
664#ifdef HAVE_STRINGS_H
665#include <strings.h>
666#endif
667#endif
668#ifdef HAVE_STDLIB_H
669#include <stdlib.h>
670#endif
671#ifdef HAVE_UNISTD_H
672#include <unistd.h>
673#endif
674"
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675
676# Does errno.h declare errno, or do we have to add a separate declaration
677# for it?
678GAS_CHECK_DECL_NEEDED(errno, f, int f, [
679#ifdef HAVE_ERRNO_H
680#include <errno.h>
681#endif
682])
683
56f36663
NC
684AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
685AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
686[AC_TRY_COMPILE([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);],
687gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
688AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
689if test $gas_cv_decl_getopt_unistd_h = yes; then
690 AC_DEFINE([HAVE_DECL_GETOPT], 1,
691 [Is the prototype for getopt in <unistd.h> in the expected format?])
692fi
693
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AL
694GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
695GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
696GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
697GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
698GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
699GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
700
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701dnl This must come last.
702
703dnl We used to make symlinks to files in the source directory, but now
704dnl we just use the right name for .c files, and create .h files in
705dnl the build directory which include the right .h file. Make sure
706dnl the old symlinks don't exist, so that a reconfigure in an existing
707dnl directory behaves reasonably.
708
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709AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
710AC_CONFIG_COMMANDS([default],
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711[rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
712 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
713 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
714 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
715 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
716 if test "x$cgen_cpu_prefix" != x ; then
717 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
718 fi
719
720 sed -e '/POTFILES =/r po/POTFILES' po/Makefile.in > po/Makefile],
721[target_cpu_type=${target_cpu_type}
722 cgen_cpu_prefix=${cgen_cpu_prefix}
723 obj_format=${obj_format}
724 te_file=${te_file}])
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725
726AC_OUTPUT
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