Update for autoconf beta 1.112:
[deliverable/binutils-gdb.git] / gas / configure.in
1 dnl Process this file with autoconf to produce a configure script.
2 dnl
3 dnl And be careful when changing it! If you must add tests with square
4 dnl brackets, be sure changequote invocations surround it.
5 dnl
6 dnl Remember to use "dnl" in each line before the AC_INIT call...
7 dnl
8 dnl
9 AC_INIT(as.h)
10 dnl
11 bfd_gas=no
12 user_bfd_gas=
13 AC_ARG_ENABLE(bfd-assembler,
14 [ bfd-assembler use BFD back end for writing object files],
15 [case "${enableval}" in
16 yes) need_bfd=yes user_bfd_gas=yes ;;
17 no) user_bfd_gas=no ;;
18 *) AC_MSG_ERROR(bad value ${enableval} given for bfd-assembler option) ;;
19 esac])dnl
20
21 # Generate a header file -- gets more post-processing by Makefile later.
22 AC_CONFIG_HEADER(conf)
23
24 dnl For recursion to work right, this must be an absolute pathname.
25 AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
26 AC_CANONICAL_SYSTEM
27 AC_ARG_PROGRAM
28
29 emulation=generic
30
31 # assign cpu type
32
33 # check for architecture variants
34 case ${target_cpu} in
35 hppa*) cpu_type=hppa ;;
36 changequote(,)dnl
37 i[45]86) cpu_type=i386 ;;
38 m680[012346]0) cpu_type=m68k ;;
39 m68008) cpu_type=m68k ;;
40 m683??) cpu_type=m68k ;;
41 changequote([,])dnl
42 m8*) cpu_type=m88k ;;
43 mips*el) cpu_type=mips endian=little;;
44 mips*) cpu_type=mips endian=big ;;
45 powerpc*) cpu_type=ppc ;;
46 rs6000*) cpu_type=ppc ;;
47 sparc64) cpu_type=sparc obj_format=elf AC_DEFINE(sparcv9) ;;
48 sparclite*) cpu_type=sparc ;;
49 *) cpu_type=${target_cpu} ;;
50 esac
51
52 # do we need the opcodes library?
53 case ${cpu_type} in
54 alpha | vax)
55 ;;
56 *)
57 OPCODES_LIB="../opcodes/libopcodes.a"
58 ;;
59 esac
60 AC_SUBST(OPCODES_LIB)
61
62 gas_target=${cpu_type}
63 generic_target=${cpu_type}-${target_vendor}-${target_os}
64 dev=no
65
66 # assign object format
67 case ${generic_target} in
68 a29k-amd-udi) obj_format=coff gas_target=ebmon29k ;;
69 a29k-amd-ebmon) obj_format=coff gas_target=ebmon29k ;;
70
71 alpha-*-netware*) obj_format=ecoff ;;
72 alpha-*-osf*) obj_format=ecoff ;;
73
74 arm-*-riscix*) obj_format=aout bfd_gas=yes ;;
75
76 hppa-*-*elf*) obj_format=elf emulation=hppa ;;
77 hppa-*-osf*) obj_format=som emulation=hppa ;;
78 hppa-*-hpux*) obj_format=som emulation=hppa ;;
79 hppa-*-bsd*) obj_format=som emulation=hppa ;;
80 hppa-*-hiux*) obj_format=som emulation=hppa ;;
81
82 h8300-*-coff) obj_format=coff ;;
83
84 i386-ibm-aix*) obj_format=coff gas_target=i386coff
85 emulation=i386aix ;;
86 i386-*-bsd*) obj_format=aout emulation=386bsd ;;
87 i386-*-netbsd0.8) obj_format=aout emulation=386bsd ;;
88 i386-*-netbsd*) obj_format=aout emulation=netbsd ;;
89 i386-*-linux*elf*) obj_format=elf emulation=linux ;;
90 i386-*-linux*coff*) obj_format=coff emulation=linux
91 gas_target=i386coff ;;
92 i386-*-linux*) obj_format=aout emulation=linux bfd_gas=preferred ;;
93 i386-*-lynxos*) obj_format=coff gas_target=i386coff
94 emulation=lynx ;;
95 i386-*-sysv4* | i386-*-solaris* | i386-*-elf)
96 obj_format=elf ;;
97 i386-*-coff | i386-*-sysv* | i386-*-sco* | i386-*-isc*)
98 obj_format=coff gas_target=i386coff ;;
99 i386-*-vsta) obj_format=aout ;;
100 i386-*-go32) obj_format=coff gas_target=i386coff ;;
101 i386-*-mach* | i386-*-gnu*)
102 obj_format=aout emulation=mach bfd_gas=yes ;;
103
104 i960-*-bout) obj_format=bout ;;
105 i960-*-coff) obj_format=coff emulation=ic960 gas_target=ic960coff ;;
106 i960-*-nindy*) obj_format=bout ;;
107 i960-*-vxworks4*) obj_format=bout ;;
108 i960-*-vxworks5.0) obj_format=bout ;;
109 i960-*-vxworks5.*) obj_format=coff emulation=ic960 gas_target=ic960coff ;;
110 i960-*-vxworks*) obj_format=bout ;;
111
112 m68k-wrs-vxworks | m68k-ericsson-ose | m68k-*-sunos*)
113 obj_format=aout emulation=sun3 ;;
114 m68k-motorola-sysv) obj_format=coff gas_target=m68kcoff emulation=delta ;;
115 m68k-bull-sysv3*) obj_format=coff gas_target=m68kcoff emulation=dpx2 ;;
116 m68k-apollo-*) obj_format=coff gas_target=apollo emulation=apollo ;;
117 m68k-*-coff | m68k-*-sysv*)
118 obj_format=coff gas_target=m68kcoff ;;
119 m68k-*-hpux) obj_format=hp300 emulation=hp300 ;;
120 m68k-*-lynxos*) obj_format=coff gas_target=m68kcoff
121 emulation=lynx ;;
122
123 m88k-*-coff*) obj_format=coff gas_target=m88kcoff ;;
124
125 # don't change emulation like *-*-bsd does
126 mips-*-bsd*) bfd_gas=yes obj_format=aout gas_target=mips-lit ;;
127 mips-*-ultrix*) obj_format=ecoff gas_target=mips-lit ;;
128 mips-*-ecoff*) obj_format=ecoff
129 case "$endian" in
130 big) gas_target=mips-big ;;
131 *) gas_target=mips-lit ;;
132 esac
133 ;;
134 mips-*-ecoff*) obj_format=ecoff gas_target=mips-big ;;
135 mips-*-irix5*) obj_format=elf gas_target=mips-big ;;
136 mips-*-irix*) obj_format=ecoff gas_target=mips-big ;;
137 mips-*-riscos*) obj_format=ecoff gas_target=mips-big ;;
138 mips-*-sysv*) obj_format=ecoff gas_target=mips-big ;;
139 mips-*-elf*) obj_format=elf
140 case "$endian" in
141 big) gas_target=mips-big ;;
142 *) gas_target=mips-lit ;;
143 esac
144 ;;
145 ppc-*-aix*) obj_format=coff bfd_gas=yes ;;
146 ppc-*-elf*) obj_format=elf bfd_gas=yes ;;
147 ppc-*-netware*) obj_format=elf emulation=ppcnw ;;
148 ppc-*-sysv4*) obj_format=elf bfd_gas=yes ;;
149
150 sh-*-coff) obj_format=coff ;;
151
152 ns32k-pc532-mach*) obj_format=aout emulation=pc532 bfd_gas=yes ;;
153 ns32k-pc532-netbsd*) obj_format=aout emulation=netbsd532 bfd_gas=yes ;;
154
155 sparc*-*-sunos4*) obj_format=aout emulation=sun3 bfd_gas=yes ;;
156 sparc*-*-aout | sparc*-*-vxworks)
157 obj_format=aout bfd_gas=yes ;;
158 sparc*-*-coff) obj_format=coff bfd_gas=yes ;;
159 sparc*-*-lynxos*) obj_format=coff bfd_gas=yes emulation=lynx ;;
160 sparc*-fujitsu-none) obj_format=aout bfd_gas=yes ;;
161 sparc*-*-elf | sparc*-*-solaris*)
162 obj_format=elf ;;
163
164 vax-*-bsd* | vax-*-ultrix*)
165 obj_format=aout ;;
166 vax-*-vms) obj_format=vms ;;
167
168 z8k-*-coff | z8k-*-sim)
169 obj_format=coff ;;
170
171 *-*-aout | *-*-scout)
172 obj_format=aout ;;
173 *-*-nindy*)
174 obj_format=bout ;;
175 *-*-bsd*)
176 obj_format=aout emulation=sun3 ;;
177 *-*-generic) obj_format=generic ;;
178 *-*-xray | *-*-hms) obj_format=coff ;;
179 *-*-sim) obj_format=coff ;;
180 *-*-elf | *-*-sysv4* | *-*-solaris*)
181 AC_MSG_WARN(GAS support for ELF format is incomplete)
182 obj_format=elf dev=yes ;;
183 *-*-vxworks) obj_format=aout ;;
184 *-*-netware) obj_format=elf ;;
185 esac
186
187 # Assign floating point type. Most processors with FP support
188 # IEEE FP. On those that don't support FP at all, usually IEEE
189 # is emulated.
190 case ${target_cpu} in
191 vax | tahoe ) atof=${target_cpu} ;;
192 *) atof=ieee ;;
193 esac
194
195 case "${obj_format}" in
196 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
197 esac
198
199 dnl
200 dnl Make sure the desired support files exist.
201 dnl
202
203 if test ! -r ${srcdir}/config/tc-${cpu_type}.c; then
204 AC_MSG_ERROR(GAS does not support target CPU ${cpu_type})
205 fi
206
207 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
208 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
209 fi
210
211 # and target makefile frag
212
213 target_frag=${srcdir}/config/${gas_target}.mt
214 AC_SUBST_FILE(target_frag)
215
216 case ${cpu_type}-${obj_format} in
217 # not yet
218 # i386-aout) bfd_gas=preferred ;;
219 *-elf) bfd_gas=yes ;;
220 *-ecoff) bfd_gas=yes ;;
221 *-som) bfd_gas=yes ;;
222 *) ;;
223 esac
224
225 case ${user_bfd_gas}-${bfd_gas} in
226 yes-yes | no-no)
227 # We didn't override user's choice.
228 ;;
229 no-yes)
230 AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
231 ;;
232 no-preferred)
233 bfd_gas=no
234 ;;
235 *-preferred)
236 bfd_gas=yes
237 ;;
238 -*)
239 # User specified nothing.
240 ;;
241 esac
242
243 case ${bfd_gas}-${cpu_type}-${obj_format} in
244 yes-*-coff) need_bfd=yes ;;
245 no-*-coff) need_bfd=yes
246 AC_DEFINE(MANY_SEGMENTS) ;;
247 esac
248
249 reject_dev_configs=yes
250
251 case ${reject_dev_configs}-${dev} in
252 yes-yes) # Oops.
253 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
254 ;;
255 esac
256
257 dnl Looks like the AC_MAKE_LINKS string is taken literally and put into the
258 dnl config.status file. So the necessary variables also have to be
259 dnl exported.
260 AC_SUBST(cpu_type) AC_SUBST(obj_format) AC_SUBST(emulation) AC_SUBST(atof)
261 AC_LINK_FILES(targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c,
262 config/tc-${cpu_type}.c config/tc-${cpu_type}.h \
263 config/obj-${obj_format}.h config/obj-${obj_format}.c \
264 config/te-${emulation}.h config/atof-${atof}.c)
265
266 case "${bfd_gas}" in
267 yes) AC_DEFINE(BFD_ASSEMBLER)
268 need_bfd=yes ;;
269 esac
270
271 case "${need_bfd}" in
272 yes) BFDLIB=../bfd/libbfd.a
273 ALL_OBJ_DEPS="$ALL_OBJ_DEPS ../bfd/bfd.h"
274 ;;
275 esac
276 AC_SUBST(BFDLIB)
277 AC_SUBST(ALL_OBJ_DEPS)
278
279 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}")
280 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}")
281 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}")
282 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}")
283 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}")
284
285 case ${host} in
286 rs6000-*-*)
287 # The IBM compiler mis-compiles some expressions used in gas.
288 # This will tell gas to work around this lossage.
289 AC_DEFINE(IBM_COMPILER_SUX) ;;
290 i386-*-go32)
291 # Using fopen(..., "w") for a binary file breaks under DOS.
292 AC_DEFINE(WANT_FOPEN_BIN) ;;
293 esac
294
295 AC_PROG_CC
296 AC_PROG_INSTALL
297
298 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h)
299
300 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
301 # people who are not cross-compiling but are compiling cross-assemblers.
302 AC_MSG_CHECKING(whether compiling a cross-assembler)
303 if test "${host}" = "${target}"; then
304 cross_gas=yes
305 AC_DEFINE(CROSS_COMPILE)
306 else
307 cross_gas=no
308 fi
309 AC_MSG_RESULT($cross_gas)
310
311 dnl ansidecl.h will deal with const
312 dnl AC_CONST
313 AC_FUNC_ALLOCA
314 AC_C_INLINE
315
316 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
317 # enough, but on some of those systems, the assert macro relies on requoting
318 # working properly!
319 GAS_WORKING_ASSERT
320
321 # On some systems, the system header files may not declare malloc, realloc,
322 # and free. There are places where gas needs these functions to have been
323 # declared -- such as when taking their addresses.
324 gas_test_headers="
325 #ifdef HAVE_MEMORY_H
326 #include <memory.h>
327 #endif
328 #ifdef HAVE_STRING_H
329 #include <string.h>
330 #endif
331 #ifdef HAVE_STDLIB_H
332 #include <stdlib.h>
333 #endif
334 #ifdef HAVE_UNISTD_H
335 #include <unistd.h>
336 #endif
337 "
338 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
339 GAS_CHECK_DECL_NEEDED(free, f, int f, $gas_test_headers)
340
341 # Does errno.h declare errno, or do we have to add a separate declaration
342 # for it?
343 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
344 #ifdef HAVE_ERRNO_H
345 #include <errno.h>
346 #endif
347 ])
348
349 AC_CONFIG_SUBDIRS(testsuite)
350
351 dnl This must come last.
352 dnl Apparently symlinks are checked for in the directory containing
353 dnl the last Makefile. Thus the order used here...
354 AC_OUTPUT(doc/Makefile Makefile)
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