Add Solaris and Linux emulations
[binutils-gdb.git] / sim / ppc / configure.in
1 dnl Process this file with autoconf to produce a configure script.
2 AC_PREREQ(2.3)dnl
3 AC_INIT(Makefile.in)
4
5 AC_PROG_CC
6
7 # Put a plausible default for CC_FOR_BUILD in Makefile.
8 AC_C_CROSS
9 if test "x$cross_compiling" = "xno"; then
10 CC_FOR_BUILD='$(CC)'
11 else
12 CC_FOR_BUILD=gcc
13 fi
14
15 AC_ARG_ENABLE(sim-cflags,
16 [ --enable-sim-cflags=opts Extra CFLAGS for use in building simulator],
17 [case "${enableval}" in
18 yes) sim_cflags="-O2 -fomit-frame-pointer";;
19 no) sim_cflags="";;
20 *) sim_cflags=`echo "${enableval}" | sed -e "s/,/ /g"`;;
21 esac
22 if test x"$silent" != x"yes" && test x"$sim_cflags" != x""; then
23 echo "Setting sim cflags = $sim_cflags" 6>&1
24 fi],[sim_cflags=""])dnl
25
26 AC_ARG_ENABLE(sim-warnings,
27 [ --enable-sim-warnings=opts Extra CFLAGS for turning on compiler warnings except for idecode.o, semantics.o and psim.o],
28 [case "${enableval}" in
29 yes) sim_warnings="-Werror -Wall -Wpointer-arith -Wmissing-prototypes";;
30 no) sim_warnings="-w";;
31 *) sim_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
32 esac
33 if test x"$silent" != x"yes" && test x"$sim_warnings" != x""; then
34 echo "Setting warning flags = $sim_warnings" 6>&1
35 fi],[sim_warnings=""])dnl
36
37 AC_ARG_ENABLE(sim-config,
38 [ --enable-sim-config=file Override default config file],
39 [case "${enableval}" in
40 yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-config=file");;
41 *) if test -f "${srcdir}/${enableval}"; then
42 sim_config="${enableval}";
43 elif test -f "${srcdir}/${enableval}-config.h"; then
44 sim_config="${enableval}-config.h"
45 else
46 AC_MSG_ERROR("Config file $enableval was not found");
47 sim_config=std-config.h
48 fi;;
49 esac
50 if test x"$silent" != x"yes" && test x"$sim_config" != x""; then
51 echo "Setting config flags = $sim_config" 6>&1
52 fi],[sim_config="std-config.h"
53 if test x"$silent" != x"yes"; then
54 echo "Setting config flags = $sim_config" 6>&1
55 fi])dnl
56
57 AC_ARG_ENABLE(sim-opcode,
58 [ --enable-sim-opcode=which Override default opcode lookup.],
59 [case "${enableval}" in
60 yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-opcode=file");;
61 *) if test -f "${srcdir}/${enableval}"; then
62 sim_opcode="${enableval}"
63 elif test -f "${srcdir}/ppc-opcode-${enableval}"; then
64 sim_opcode="ppc-opcode-${enableval}"
65 else
66 AC_MSG_ERROR("File $enableval is not an opcode rules file");
67 sim_opcode="ppc-opcode-complex"
68 fi;;
69 esac
70 if test x"$silent" != x"yes" && test x"$sim_opcode" != x""; then
71 echo "Setting opcode flags = $sim_opcode" 6>&1
72 fi],[sim_opcode="ppc-opcode-complex"
73 if test x"$silent" != x"yes"; then
74 echo "Setting opcode flags = $sim_opcode"
75 fi])dnl
76
77 AC_ARG_ENABLE(sim-switch,
78 [ --enable-sim-switch Use a switch instead of a table for instruction call.],
79 [case "${enableval}" in
80 yes) sim_switch="-s";;
81 no) sim_switch="";;
82 *) AC_MSG_ERROR("--enable-sim-switch does not take a value"); sim_switch="";;
83 esac
84 if test x"$silent" != x"yes" && test x"$sim_switch" != x""; then
85 echo "Setting switch flags = $sim_switch" 6>&1
86 fi],[sim_switch="";
87 if test x"$silent" != x"yes"; then
88 echo "Setting switch flags = $sim_switch" 6>&1
89 fi])dnl
90
91 AC_ARG_ENABLE(sim-duplicate,
92 [ --enable-sim-duplicate Expand (duplicate) semantic functions.],
93 [case "${enableval}" in
94 yes) sim_dup="-e";;
95 no) sim_dup="";;
96 *) AC_MSG_ERROR("--enable-sim-duplicate does not take a value"); sim_dup="";;
97 esac
98 if test x"$silent" != x"yes" && test x"$sim_dup" != x""; then
99 echo "Setting duplicate flags = $sim_dup" 6>&1
100 fi],[sim_dup="-e"
101 if test x"$silent" != x"yes"; then
102 echo "Setting duplicate flags = $sim_dup" 6>&1
103 fi])dnl
104
105 AC_ARG_ENABLE(sim-filter,
106 [ --enable-sim-filter=rule Specify filter rules.],
107 [case "${enableval}" in
108 yes) AC_MSG_ERROR("--enable-sim-filter must be specified with a rule to filter or no"); sim_filter="";;
109 no) sim_filter="";;
110 *) sim_filter="-f $enableval";;
111 esac
112 if test x"$silent" != x"yes" && test x"$sim_filter" != x""; then
113 echo "Setting filter flags = $sim_filter" 6>&1
114 fi],[sim_filter="-f 64"
115 if test x"$silent" != x"yes"; then
116 echo "Setting filter flags = $sim_filter" 6>&1
117 fi])dnl
118
119 AC_ARG_ENABLE(sim-icache,
120 [ --enable-sim-icache=size Specify instruction cache size.],
121 icache=""
122 [case "${enableval}" in
123 yes) sim_icache="-r 1024"; icache="1024";;
124 define) sim_icache="-r 1024 -R"; icache="1024";;
125 no) sim_icache="";;
126 *) sim_icache="-r ${enableval}"; icache="${enableval}";;
127 esac
128 if test x"$silent" != x"yes" && test x"$icache" != x""; then
129 echo "Setting instruction cache size to $icache"
130 fi],[sim_icache="-r 1024"
131 if test x"$silent" != x"yes"; then
132 echo "Setting instruction cache size to 1024"
133 fi])dnl
134
135 AC_ARG_ENABLE(sim-inline,
136 [ --enable-sim-inline=inlines Specify which functions should be inlined.],
137 [sim_inline=""
138 case "$enableval" in
139 no) sim_inline="-DDEFAULT_INLINE=0";;
140 0) sim_inline="-DDEFAULT_INLINE=0";;
141 yes | 2) sim_inline="-DDEFAULT_INLINE=ALL_INLINE";;
142 1) sim_inline="-DDEFAULT_INLINE=INLINE_LOCALS";;
143 *) for x in `echo "$enableval" | sed -e "s/,/ /g"`; do
144 new_flag=""
145 case "$x" in
146 *_INLINE=*) new_flag="-D$x";;
147 *_INLINE) new_flag="-D$x=ALL_INLINE";;
148 *=*) new_flag=`echo "$x" | sed -e "s/=/_INLINE=/" -e "s/^/-D/"`;;
149 *) new_flag="-D$x""_INLINE=ALL_INLINE";;
150 esac
151 if test x"$sim_inline" = x""; then
152 sim_inline="$new_flag"
153 else
154 sim_inline="$sim_inline $new_flag"
155 fi
156 done;;
157 esac
158 if test x"$silent" != x"yes" && test x"$sim_inline" != x""; then
159 echo "Setting inline flags = $sim_inline" 6>&1
160 fi],[if test x"$GCC" != ""; then
161 sim_inline="-DDEFAULT_INLINE=INLINE_LOCALS"
162 if test x"$silent" != x"yes"; then
163 echo "Setting inline flags = $sim_inline" 6>&1
164 fi
165 else
166 sim_inline=""
167 fi])dnl
168
169 AC_ARG_ENABLE(sim-bswap,
170 [ --enable-sim-bswap Use the BSWAP instruction on Intel 486s and Pentiums.],
171 [case "${enableval}" in
172 yes) sim_bswap="-DWITH_BSWAP=1";;
173 no) sim_bswap="-DWITH_BSWAP=0";;
174 *) AC_MSG_ERROR("--enable-sim-bswap does not take a value"); sim_bswap="";;
175 esac
176 if test x"$silent" != x"yes" && test x"$sim_bswap" != x""; then
177 echo "Setting bswap flags = $sim_bswap" 6>&1
178 fi],[sim_bswap=""])dnl
179
180 AC_ARG_ENABLE(sim-endian,
181 [ --enable-sim-endian=endian Specify target byte endian orientation.],
182 [case "${enableval}" in
183 yes) case "$target" in
184 *powerpc-*) sim_endian="-DWITH_TARGET_BYTE_ORDER=BIG_ENDIAN";;
185 *powerpcle-*) sim_endian="-DWITH_TARGET_BYTE_ORDER=LITTLE_ENDIAN";;
186 *) echo "Unknown target $target" 1>&6; sim_endian="-DWITH_TARGET_BYTE_ORDER=0";;
187 esac;;
188 no) sim_endian="-DWITH_TARGET_BYTE_ORDER=0";;
189 b*|B*) sim_endian="-DWITH_TARGET_BYTE_ORDER=BIG_ENDIAN";;
190 l*|L*) sim_endian="-DWITH_TARGET_BYTE_ORDER=LITTLE_ENDIAN";;
191 *) AC_MSG_ERROR("Unknown value $enableval for --enable-sim-endian"); sim_endian="";;
192 esac
193 if test x"$silent" != x"yes" && test x"$sim_endian" != x""; then
194 echo "Setting endian flags = $sim_endian" 6>&1
195 fi],[sim_endian=""])dnl
196
197 AC_ARG_ENABLE(sim-hostendian,
198 [ --enable-sim-hostendain=end Specify host byte endian orientation.],
199 [case "${enableval}" in
200 no) sim_hostendian="-DWITH_HOST_BYTE_ORDER=0";;
201 b*|B*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN";;
202 l*|L*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN";;
203 *) AC_MSG_ERROR("Unknown value $enableval for --enable-sim-hostendian"); sim_hostendian="";;
204 esac
205 if test x"$silent" != x"yes" && test x"$sim_hostendian" != x""; then
206 echo "Setting hostendian flags = $sim_hostendian" 6>&1
207 fi],[
208 if test "x$cross_compiling" = "xno"; then
209 AC_C_BIGENDIAN
210 if test $ac_cv_c_bigendian = yes; then
211 sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN"
212 else
213 sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN"
214 fi
215 else
216 sim_hostendian="-DWITH_HOST_BYTE_ORDER=0"
217 fi])dnl
218
219 AC_ARG_ENABLE(sim-smp,
220 [ --enable-sim-smp=n Specify number of processors to configure for.],
221 [case "${enableval}" in
222 yes) sim_smp="-DWITH_SMP=5";;
223 no) sim_smp="-DWITH_SMP=0";;
224 *) sim_smp="-DWITH_SMP=$enableval";;
225 esac
226 if test x"$silent" != x"yes" && test x"$sim_smp" != x""; then
227 echo "Setting smp flags = $sim_smp" 6>&1
228 fi],[sim_smp="-DWITH_SMP=5"
229 if test x"$silent" != x"yes"; then
230 echo "Setting smp flags = $sim_smp" 6>&1
231 fi])dnl
232
233 AC_ARG_ENABLE(sim-xor-endian,
234 [ --enable-sim-xor-endian=n Specify number bytes involved in PowerPC XOR bi-endian mode (default 8).],
235 [case "${enableval}" in
236 yes) sim_xor_endian="-DWITH_XOR_ENDIAN=8";;
237 no) sim_xor_endian="-DWITH_XOR_ENDIAN=0";;
238 *) sim_xor_endian="-DWITH_XOR_ENDIAN=$enableval";;
239 esac
240 if test x"$silent" != x"yes" && test x"$sim_xor_endian" != x""; then
241 echo "Setting xor-endian flag = $sim_xor_endian" 6>&1
242 fi],[sim_xor_endian=""])dnl
243
244 AC_ARG_ENABLE(sim-bitsize,
245 [ --enable-sim-bitsize=n Specify target bitsize (32 or 64).],
246 [case "${enableval}" in
247 32|64) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=$enableval";;
248 *) AC_MSG_ERROR("--enable-sim-bitsize was given $enableval, expected 32 or 64"); sim_bitsize="";;
249 esac
250 if test x"$silent" != x"yes" && test x"$sim_bitsize" != x""; then
251 echo "Setting bitsize flags = $sim_bitsize" 6>&1
252 fi],[sim_bitsize=""])dnl
253
254 AC_ARG_ENABLE(sim-hostbitsize,
255 [ --enable-sim-hostbitsize=32|64 Specify host bitsize (32 or 64).],
256 [case "${enableval}" in
257 32|64) sim_hostbitsize="-DWITH_HOST_WORD_BITSIZE=$enableval";;
258 *) AC_MSG_ERROR("--enable-sim-hostbitsize was given $enableval, expected 32 or 64"); sim_hostbitsize="";;
259 esac
260 if test x"$silent" != x"yes" && test x"$sim_hostbitsize" != x""; then
261 echo "Setting hostbitsize flags = $sim_hostbitsize" 6>&1
262 fi],[sim_hostbitsize=""])dnl
263
264 AC_ARG_ENABLE(sim-env,
265 [ --enable-sim-env=env Specify target environment (operating, virtual, user).],
266 [case "${enableval}" in
267 operating | os | oea) sim_env="-DWITH_ENVIRONMENT=OPERATING_ENVIRONMENT";;
268 virtual | vea) sim_env="-DWITH_ENVIRONMENT=VIRTUAL_ENVIRONMENT";;
269 user | uea) sim_env="-DWITH_ENVIRONMENT=USER_ENVIRONMENT";;
270 no) sim_env="-DWITH_ENVIRONMENT=0";;
271 *) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-env"); sim_env="";;
272 esac
273 if test x"$silent" != x"yes" && test x"$sim_env" != x""; then
274 echo "Setting env flags = $sim_env" 6>&1
275 fi],[sim_env=""])dnl
276
277 AC_ARG_ENABLE(sim-timebase,
278 [ --enable-sim-timebase Specify whether the PPC timebase is supported.],
279 [case "${enableval}" in
280 yes) sim_timebase="-DWITH_TIME_BASE=1";;
281 no) sim_timebase="-DWITH_TIME_BASE=0";;
282 *) AC_MSG_ERROR("--enable-sim-timebase does not take a value"); sim_timebase="";;
283 esac
284 if test x"$silent" != x"yes" && test x"$sim_timebase" != x""; then
285 echo "Setting timebase flags = $sim_timebase" 6>&1
286 fi],[sim_timebase=""])dnl
287
288 AC_ARG_ENABLE(sim-alignment,
289 [ --enable-sim-alignment=align Specify strict or nonstrict alignment.],
290 [case "${enableval}" in
291 yes | strict | STRICT) sim_alignment="-DWITH_ALIGNMENT=STRICT_ALIGNMENT";;
292 no | nonstrict | NONSTRICT) sim_alignment="-DWITH_ALIGNMENT=NONSTRICT_ALIGNMENT";;
293 0 | default | DEFAULT) sim_alignment="-DWITH_ALIGNMENT=0";;
294 *) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-alignment"); sim_alignment="";;
295 esac
296 if test x"$silent" != x"yes" && test x"$sim_alignment" != x""; then
297 echo "Setting alignment flags = $sim_alignment" 6>&1
298 fi],[sim_alignment=""])dnl
299
300 AC_ARG_ENABLE(sim-trace,
301 [ --enable-sim-trace Specify whether tracing is supported.],
302 [case "${enableval}" in
303 yes) sim_trace="-DWITH_TRACE=1";;
304 no) sim_trace="-DWITH_TRACE=0";;
305 *) AC_MSG_ERROR("--enable-sim-trace does not take a value"); sim_trace="";;
306 esac
307 if test x"$silent" != x"yes" && test x"$sim_trace" != x""; then
308 echo "Setting trace flags = $sim_trace" 6>&1
309 fi],[sim_trace=""])dnl
310
311 AC_ARG_ENABLE(sim-assert,
312 [ --enable-sim-assert Specify whether to perform random assertions.],
313 [case "${enableval}" in
314 yes) sim_assert="-DWITH_ASSERT=1";;
315 no) sim_assert="-DWITH_ASSERT=0";;
316 *) AC_MSG_ERROR("--enable-sim-assert does not take a value"); sim_assert="";;
317 esac
318 if test x"$silent" != x"yes" && test x"$sim_assert" != x""; then
319 echo "Setting assert flags = $sim_assert" 6>&1
320 fi],[sim_assert=""])dnl
321
322 AC_ARG_ENABLE(sim-reserved-bits,
323 [ --enable-sim-reserved-bits Specify whether to check reserved bits in instruction.],
324 [case "${enableval}" in
325 yes) sim_reserved="-DWITH_RESERVED_BITS=1";;
326 no) sim_reserved="-DWITH_RESERVED_BITS=0";;
327 *) AC_MSG_ERROR("--enable-sim-reserved-bits does not take a value"); sim_reserved="";;
328 esac
329 if test x"$silent" != x"yes" && test x"$sim_reserved" != x""; then
330 echo "Setting reserved flags = $sim_reserved" 6>&1
331 fi],[sim_reserved=""])dnl
332
333 AC_ARG_ENABLE(sim-float,
334 [ --enable-sim-float Specify whether to use host floating point or simulate.],
335 [case "${enableval}" in
336 yes | hard) sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT";;
337 no | soft) sim_float="-DWITH_FLOATING_POINT=SOFT_FLOATING_POINT";;
338 *) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-float"); sim_float="";;
339 esac
340 if test x"$silent" != x"yes" && test x"$sim_float" != x""; then
341 echo "Setting float flags = $sim_float" 6>&1
342 fi],[sim_float=""])dnl
343
344 AC_ARG_ENABLE(sim-monitor,
345 [ --enable-sim-monitor=mon Specify whether to enable monitoring events.],
346 [case "${enableval}" in
347 yes) sim_monitor="-DWITH_MON='MONITOR_INSTRUCTION_ISSUE | MONITOR_LOAD_STORE_UNIT'";;
348 no) sim_monitor="-DWITH_MON=0";;
349 instruction) sim_monitor="-DWITH_MON=MONITOR_INSTRUCTION_ISSUE";;
350 memory) sim_monitor="-DWITH_MON=MONITOR_LOAD_STORE_UNIT";;
351 *) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-mon"); sim_env="";;
352 esac
353 if test x"$silent" != x"yes" && test x"$sim_monitor" != x""; then
354 echo "Setting monitor flags = $sim_monitor" 6>&1
355 fi],[sim_monitor=""])dnl
356
357 AC_ARG_ENABLE(sim-model,
358 [ --enable-sim-model=which Specify PowerPC to model.],
359 [case "${enableval}" in
360 yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-model=model");;
361 *) sim_model="-DWITH_MODEL=${enableval}";;
362 esac
363 if test x"$silent" != x"yes" && test x"$sim_model" != x""; then
364 echo "Setting model flags = $sim_model" 6>&1
365 fi],[sim_model=""])dnl
366
367 AC_ARG_ENABLE(sim-default-model,
368 [ --enable-sim-default-model=which Specify default PowerPC to model.],
369 [case "${enableval}" in
370 yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-default-model=model");;
371 *) sim_default_model="-DWITH_DEFAULT_MODEL=${enableval}";;
372 esac
373 if test x"$silent" != x"yes" && test x"$sim_default_model" != x""; then
374 echo "Setting default-model flags = $sim_default_model" 6>&1
375 fi],[sim_model=""])dnl
376
377 AC_ARG_ENABLE(sim-model-issue,
378 [ --enable-sim-model-issue Specify whether to simulate model specific actions],
379 [case "${enableval}" in
380 yes) sim_model_issue="-DWITH_MODEL_ISSUE=MODEL_ISSUE_PROCESS";;
381 no) sim_model_issue="-DWITH_MODEL_ISSUE=MODEL_ISSUE_IGNORE";;
382 *) AC_MSG_ERROR("--enable-sim-model-issue does not take a value"); sim_model_issue="";;
383 esac
384 if test x"$silent" != x"yes"; then
385 echo "Setting model-issue flags = $sim_model_issue" 6>&1
386 fi],[sim_model_issue=""])dnl
387
388 AC_ARG_ENABLE(sim-stdio,
389 [ --enable-sim-stdio Specify whether to use stdio for console input/output.],
390 [case "${enableval}" in
391 yes) sim_stdio="-DWITH_STDIO=DO_USE_STDIO";;
392 no) sim_stdio="-DWITH_STDIO=DONT_USE_STDIO";;
393 *) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-stdio"); sim_stdio="";;
394 esac
395 if test x"$silent" != x"yes" && test x"$sim_stdio" != x""; then
396 echo "Setting stdio flags = $sim_stdio" 6>&1
397 fi],[sim_stdio=""])dnl
398
399 AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/../..)
400 AC_CANONICAL_SYSTEM
401 AC_ARG_PROGRAM
402
403 . ${srcdir}/../../bfd/configure.host
404
405 AC_CONFIG_HEADER(config.h:config.in)
406
407 AC_SUBST(CC_FOR_BUILD)
408 AC_SUBST(CFLAGS)
409 AC_SUBST(HDEFINES)
410 AR=${AR-ar}
411 AC_SUBST(AR)
412 AC_PROG_RANLIB
413 AC_SUBST(sim_cflags)
414 AC_SUBST(sim_warnings)
415 AC_SUBST(sim_config)
416 AC_SUBST(sim_opcode)
417 AC_SUBST(sim_switch)
418 AC_SUBST(sim_dup)
419 AC_SUBST(sim_filter)
420 AC_SUBST(sim_icache)
421 AC_SUBST(sim_inline)
422 AC_SUBST(sim_bswap)
423 AC_SUBST(sim_endian)
424 AC_SUBST(sim_xor_endian)
425 AC_SUBST(sim_hostendian)
426 AC_SUBST(sim_smp)
427 AC_SUBST(sim_bitsize)
428 AC_SUBST(sim_hostbitsize)
429 AC_SUBST(sim_env)
430 AC_SUBST(sim_timebase)
431 AC_SUBST(sim_alignment)
432 AC_SUBST(sim_float)
433 AC_SUBST(sim_trace)
434 AC_SUBST(sim_assert)
435 AC_SUBST(sim_reserved)
436 AC_SUBST(sim_monitor)
437 AC_SUBST(sim_model)
438 AC_SUBST(sim_default_model)
439 AC_SUBST(sim_model_issue)
440 AC_SUBST(sim_stdio)
441
442 AC_STRUCT_ST_BLKSIZE
443 AC_STRUCT_ST_BLOCKS
444 AC_STRUCT_ST_RDEV
445 AC_STRUCT_TIMEZONE
446
447 AC_CHECK_FUNCS(cfgetispeed cfgetospeed cfsetispeed cfsetospeed chdir chmod chown dup dup2 fchmod fchown fcntl fstat fstatfs getdirentries getegid geteuid getgid getpid getppid getrusage gettimeofday getuid ioctl kill link lseek lstat mkdir pipe readlink rmdir setreuid setregid stat sigprocmask stat symlink tcgetattr tcsetattr tcsendbreak tcdrain tcflush tcflow tcgetpgrp tcsetpgrp time umask unlink)
448
449 AC_CHECK_HEADERS(fcntl.h stdlib.h string.h strings.h sys/ioctl.h sys/mount.h sys/param.h sys/resource.h sys/stat.h sys/termio.h sys/termios.h sys/time.h sys/times.h sys/types.h time.h unistd.h)
450 AC_HEADER_DIRENT
451
452 AC_OUTPUT(Makefile,
453 [case x$CONFIG_HEADERS in xconfig.h:config.in) echo > stamp-h ;; esac])