source: trunk/src/gcc/libjava/configure.in@ 513

Last change on this file since 513 was 2, checked in by bird, 22 years ago

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Line 
1dnl Process this with autoconf to create configure
2AC_INIT(java/lang/System.java)
3
4# This works around the fact that libtool configuration may change LD
5# for this particular configuration, but some shells, instead of
6# keeping the changes in LD private, export them just because LD is
7# exported.
8ORIGINAL_LD_FOR_MULTILIBS=$LD
9
10AC_PROG_LN_S
11
12dnl We use these options to decide which functions to include.
13AC_ARG_WITH(target-subdir,
14[ --with-target-subdir=SUBDIR
15 configuring in a subdirectory])
16AC_ARG_WITH(cross-host,
17[ --with-cross-host=HOST configuring with a cross compiler])
18
19LIBGCJ_CONFIGURE(.)
20
21AM_CONFIG_HEADER(include/config.h gcj/libgcj-config.h)
22
23# Only use libltdl for native builds.
24if test -z "${with_cross_host}"; then
25 AC_LIBLTDL_CONVENIENCE
26 AC_LIBTOOL_DLOPEN
27 DIRLTDL=libltdl
28 AC_DEFINE(USE_LTDL)
29 # Sigh. Libtool's macro doesn't do the right thing.
30 INCLTDL="-I\$(top_srcdir)/libltdl $INCLTDL"
31 # FIXME: this is a hack.
32 sub_auxdir="`cd $ac_aux_dir && pwd`"
33 ac_configure_args="$ac_configure_args --with-auxdir=$sub_auxdir"
34fi
35AC_SUBST(INCLTDL)
36AC_SUBST(LIBLTDL)
37AC_SUBST(DIRLTDL)
38AM_PROG_LIBTOOL
39AC_CONFIG_SUBDIRS($DIRLTDL)
40
41if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
42 COMPPATH=.
43else
44 COMPPATH=..
45fi
46AC_SUBST(COMPPATH)
47
48dnl The -no-testsuite modules omit the test subdir.
49AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
50
51dnl Should the runtime set system properties by examining the
52dnl environment variable GCJ_PROPERTIES?
53AC_ARG_ENABLE(getenv-properties,
54[ --disable-getenv-properties
55 don't set system properties from GCJ_PROPERTIES])
56
57dnl Whether GCJ_PROPERTIES is used depends on the target.
58if test -z "$enable_getenv_properties"; then
59 enable_getenv_properties=${enable_getenv_properties_default-yes}
60fi
61if test "$enable_getenv_properties" = no; then
62 AC_DEFINE(DISABLE_GETENV_PROPERTIES)
63fi
64
65dnl Whether we should use arguments to main()
66if test -z "$enable_main_args"; then
67 enable_main_args=${enable_main_args_default-yes}
68fi
69if test "$enable_main_args" = no; then
70 AC_DEFINE(DISABLE_MAIN_ARGS)
71fi
72
73
74dnl Should we use hashtable-based synchronization?
75dnl Currently works only for Linux X86/ia64
76dnl Typically faster and more space-efficient
77AC_ARG_ENABLE(hash-synchronization,
78[ --enable-hash-synchronization
79 Use global hash table for monitor locks])
80
81if test -z "$enable_hash_synchronization"; then
82 enable_hash_synchronization=$enable_hash_synchronization_default
83fi
84
85dnl configure.host sets slow_pthread_self if the synchronization code should
86dnl try to avoid pthread_self calls by caching thread IDs in a hashtable.
87if test "${slow_pthread_self}" = "yes"; then
88 AC_DEFINE(SLOW_PTHREAD_SELF)
89fi
90
91
92dnl See if the user has requested runtime debugging.
93LIBGCJDEBUG="false"
94AC_SUBST(LIBGCJDEBUG)
95AC_ARG_ENABLE(libgcj-debug,
96[ --enable-libgcj-debug enable runtime debugging code],
97 if test "$enable_libgcj_debug" = yes; then
98 AC_DEFINE(DEBUG)
99 LIBGCJDEBUG="true"
100 fi)
101
102dnl See if the user has the interpreter included.
103AC_ARG_ENABLE(interpreter,
104[ --enable-interpreter enable interpreter],
105 if test "$enable_interpreter" = yes; then
106 # This can also be set in configure.host.
107 libgcj_interpreter=yes
108 elif test "$enable_interpreter" = no; then
109 libgcj_interpreter=no
110 fi)
111
112if test "$libgcj_interpreter" = yes; then
113 AC_DEFINE(INTERPRETER)
114fi
115
116AC_MSG_CHECKING([for exception model to use])
117AC_LANG_SAVE
118AC_LANG_CPLUSPLUS
119AC_ARG_ENABLE(sjlj-exceptions,
120[ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
121[:],
122[dnl Botheration. Now we've got to detect the exception model.
123dnl Link tests against libgcc.a are problematic since -- at least
124dnl as of this writing -- we've not been given proper -L bits for
125dnl single-tree newlib and libgloss.
126dnl
127dnl This is what AC_TRY_COMPILE would do if it didn't delete the
128dnl conftest files before we got a change to grep them first.
129cat > conftest.$ac_ext << EOF
130[#]line __oline__ "configure"
131struct S { ~S(); };
132void bar();
133void foo()
134{
135 S s;
136 bar();
137}
138EOF
139old_CXXFLAGS="$CXXFLAGS"
140CXXFLAGS=-S
141if AC_TRY_EVAL(ac_compile); then
142 if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
143 enable_sjlj_exceptions=yes
144 elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
145 enable_sjlj_exceptions=no
146 fi
147fi
148CXXFLAGS="$old_CXXFLAGS"
149rm -f conftest*])
150if test x$enable_sjlj_exceptions = xyes; then
151 AC_DEFINE(SJLJ_EXCEPTIONS, 1,
152 [Define if the compiler is configured for setjmp/longjmp exceptions.])
153 ac_exception_model_name=sjlj
154elif test x$enable_sjlj_exceptions = xno; then
155 ac_exception_model_name="call frame"
156else
157 AC_MSG_ERROR([unable to detect exception model])
158fi
159AC_LANG_RESTORE
160AC_MSG_RESULT($ac_exception_model_name)
161
162# If we are non using SJLJ exceptions, and this host does not have support
163# for unwinding from a signal handler, enable checked dereferences and divides.
164if test $can_unwind_signal = no && test $enable_sjlj_exceptions = no; then
165 CHECKREFSPEC=-fcheck-references
166 DIVIDESPEC=-fuse-divide-subroutine
167 EXCEPTIONSPEC=
168fi
169
170dnl See if the user wants to disable java.net. This is the mildly
171dnl ugly way that we admit that target-side configuration sucks.
172AC_ARG_ENABLE(java-net,
173[ --disable-java-net disable java.net])
174
175dnl Whether java.net is built by default can depend on the target.
176if test -z "$enable_java_net"; then
177 enable_java_net=${enable_java_net_default-yes}
178fi
179if test "$enable_java_net" = no; then
180 AC_DEFINE(DISABLE_JAVA_NET)
181fi
182
183dnl See if the user wants to configure without libffi. Some
184dnl architectures don't support it, and default values are set in
185dnl configure.host.
186AC_ARG_WITH(libffi,
187[ --without-libffi don't use libffi],,with_libffi=${with_libffi_default-yes})
188
189LIBFFI=
190LIBFFIINCS=
191if test "$with_libffi" != no; then
192 AC_DEFINE(USE_LIBFFI)
193 LIBFFI=../libffi/libffi_convenience.la
194 LIBFFIINCS='-I$(top_srcdir)/../libffi/include -I$(MULTIBUILDTOP)../libffi/include'
195fi
196AC_SUBST(LIBFFI)
197AC_SUBST(LIBFFIINCS)
198
199dnl See if the user wants to disable JVMPI support.
200AC_ARG_ENABLE(jvmpi,
201[ --disable-jvmpi disable JVMPI support])
202
203if test "$enable_jvmpi" != no; then
204 AC_DEFINE(ENABLE_JVMPI)
205fi
206
207dnl If the target is an eCos system, use the appropriate eCos
208dnl I/O routines.
209dnl FIXME: this should not be a local option but a global target
210dnl system; at present there is no eCos target.
211TARGET_ECOS=${PROCESS-"no"}
212AC_ARG_WITH(ecos,
213[ --with-ecos enable runtime eCos target support],
214TARGET_ECOS="$with_ecos"
215)
216
217PLATFORMOBJS=
218case "$TARGET_ECOS" in
219 no) case "$host" in
220 *mingw*)
221 PLATFORM=Win32
222 PLATFORMOBJS=win32.lo
223 PLATFORMH=win32.h
224 ;;
225 *)
226 PLATFORM=Posix
227 PLATFORMOBJS=posix.lo
228 PLATFORMH=posix.h
229 ;;
230 esac
231 ;;
232 *)
233 PLATFORM=Ecos
234 AC_DEFINE(ECOS)
235 PLATFORMOBJS=posix.lo
236 PLATFORMH=posix.h
237 ;;
238esac
239AC_SUBST(PLATFORMOBJS)
240AC_LINK_FILES(include/$PLATFORMH, include/platform.h)
241
242AC_EGREP_HEADER(uint32_t, stdint.h, AC_DEFINE(HAVE_INT32_DEFINED))
243AC_EGREP_HEADER(uint32_t, inttypes.h, AC_DEFINE(HAVE_INT32_DEFINED))
244AC_EGREP_HEADER(u_int32_t, sys/types.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
245AC_EGREP_HEADER(u_int32_t, sys/config.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
246
247
248dnl These may not be defined in a non-ANS conformant embedded system.
249dnl FIXME: Should these case a runtime exception in that case?
250AC_EGREP_HEADER(mktime, time.h, AC_DEFINE(HAVE_MKTIME))
251AC_EGREP_HEADER(localtime, time.h, AC_DEFINE(HAVE_LOCALTIME))
252
253dnl Create the subdirectory for natFileDescriptor.cc, or the attempt
254dnl to create the link will fail.
255test -d java || mkdir java
256test -d java/io || mkdir java/io
257test -d gnu || mkdir gnu
258AC_LINK_FILES(java/io/natFile${FILE-${PLATFORM}}.cc, java/io/natFile.cc)
259AC_LINK_FILES(java/io/natFileDescriptor${FILE-${PLATFORM}}.cc, java/io/natFileDescriptor.cc)
260
261dnl Likewise for ConcreteProcess.java and natConcreteProcess.cc.
262test -d java/lang || mkdir java/lang
263AC_LINK_FILES(java/lang/${PLATFORM}Process.java, java/lang/ConcreteProcess.java)
264AC_LINK_FILES(java/lang/nat${PLATFORM}Process.cc, java/lang/natConcreteProcess.cc)
265
266case "${host}" in
267 *mingw*)
268 SYSTEMSPEC="-lgdi32 -lwsock32 -lws2_32"
269 ;;
270 *)
271 SYSTEMSPEC=
272 ;;
273esac
274AC_SUBST(SYSTEMSPEC)
275
276LIBGCJTESTSPEC="-L`pwd`/.libs -rpath `pwd`/.libs"
277AC_SUBST(LIBGCJTESTSPEC)
278
279AC_ARG_WITH(system-zlib,
280[ --with-system-zlib use installed libz])
281ZLIBSPEC=
282AC_SUBST(ZLIBSPEC)
283ZLIBTESTSPEC=
284AC_SUBST(ZLIBTESTSPEC)
285
286dnl FIXME: this should be _libs on some hosts.
287libsubdir=.libs
288
289dnl Allow the GC to be disabled. Can be useful when debugging.
290AC_MSG_CHECKING([for garbage collector to use])
291AC_ARG_ENABLE(java-gc,
292changequote(<<,>>)dnl
293<< --enable-java-gc=TYPE choose garbage collector [boehm]>>,
294changequote([,])
295 GC=$enableval,
296 GC=boehm)
297GCLIBS=
298GCINCS=
299GCDEPS=
300GCOBJS=
301GCSPEC=
302JC1GCSPEC=
303GCTESTSPEC=
304case "$GC" in
305 boehm)
306 AC_MSG_RESULT(boehm)
307 GCLIBS=../boehm-gc/libgcjgc_convenience.la
308 GCINCS='-I$(top_srcdir)/../boehm-gc/include'
309 JC1GCSPEC='-fuse-boehm-gc'
310 GCTESTSPEC="-L`pwd`/../boehm-gc/.libs -rpath `pwd`/../boehm-gc/.libs"
311
312 dnl We also want to pick up some cpp flags required when including
313 dnl boehm-config.h. Yuck.
314 GCINCS="$GCINCS `cat ../boehm-gc/boehm-cflags`"
315 GCOBJS=boehm.lo
316 GCHDR=boehm-gc.h
317 dnl The POSIX thread support needs to know this.
318 AC_DEFINE(HAVE_BOEHM_GC)
319 ;;
320 no)
321 AC_MSG_RESULT(none)
322 GCOBJS=nogc.lo
323 GCHDR=no-gc.h
324 ;;
325 *)
326 AC_MSG_ERROR(unrecognized collector \"$GC\")
327 ;;
328esac
329AC_SUBST(GCLIBS)
330AC_SUBST(GCINCS)
331AC_SUBST(GCDEPS)
332AC_SUBST(GCOBJS)
333AC_SUBST(GCSPEC)
334AC_SUBST(JC1GCSPEC)
335AC_SUBST(GCTESTSPEC)
336AC_LINK_FILES(include/$GCHDR, include/java-gc.h)
337
338
339AC_MSG_CHECKING([for thread model used by GCC])
340THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
341AC_MSG_RESULT([$THREADS])
342
343case "$THREADS" in
344 no | none | single)
345 THREADS=none
346 ;;
347 posix | pthreads)
348 THREADS=posix
349 case "$host" in
350 *-*-linux*)
351 AC_DEFINE(LINUX_THREADS)
352 ;;
353 esac
354 ;;
355 win32)
356 ;;
357 decosf1 | irix | mach | os2 | solaris | dce | vxworks)
358 AC_MSG_ERROR(thread package $THREADS not yet supported)
359 ;;
360 *)
361 AC_MSG_ERROR($THREADS is an unknown thread package)
362 ;;
363esac
364
365THREADLDFLAGS=
366THREADLIBS=
367THREADINCS=
368THREADDEPS=
369THREADOBJS=
370THREADH=
371THREADSPEC=
372case "$THREADS" in
373 posix)
374 case "$host" in
375 *-*-cygwin*)
376 # Don't set THREADLIBS here. Cygwin doesn't have -lpthread.
377 ;;
378changequote(<<,>>)
379 *-*-freebsd[1234]*)
380changequote([,])
381 # Before FreeBSD 5, it didn't have -lpthread (or any library which
382 # merely adds pthread_* functions) but it does have a -pthread switch
383 # which is required at link-time to select -lc_r *instead* of -lc.
384 THREADLDFLAGS=-pthread
385 # Don't set THREADSPEC here as might be expected since -pthread is
386 # not processed when found within a spec file, it must come from
387 # the command line. For now, the user must provide the -pthread
388 # switch to link code compiled with gcj. In future, consider adding
389 # support for weak references to pthread_* functions ala gthr.h API.
390 THREADSPEC='%{!pthread: %eUnder this configuration, the user must provide -pthread when linking.}'
391 ;;
392 *-*-freebsd*)
393 # FreeBSD 5 implements a model much closer to other modern UNIX
394 # which support threads. However, it still does not support
395 # -lpthread.
396 THREADLDFLAGS=-pthread
397 THREADSPEC=-lc_r
398 ;;
399 *)
400 THREADLIBS=-lpthread
401 THREADSPEC=-lpthread
402 ;;
403 esac
404 THREADOBJS=posix-threads.lo
405 THREADH=posix-threads.h
406 # MIT pthreads doesn't seem to have the mutexattr functions.
407 # But for now we don't check for it. We just assume you aren't
408 # using MIT pthreads.
409 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
410
411 # If we're using the Boehm GC, then we happen to know that it
412 # defines _REENTRANT, so we don't bother. Eww.
413 if test "$GC" != boehm; then
414 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
415 fi
416 AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1, [Required define if using POSIX threads])
417 ;;
418
419 win32)
420 THREADOBJS=win32-threads.lo
421 THREADH=win32-threads.h
422 ;;
423
424 none)
425 THREADOBJS=no-threads.lo
426 THREADH=no-threads.h
427 ;;
428esac
429AC_LINK_FILES(include/$THREADH, include/java-threads.h)
430AC_SUBST(THREADLIBS)
431AC_SUBST(THREADINCS)
432AC_SUBST(THREADDEPS)
433AC_SUBST(THREADOBJS)
434AC_SUBST(THREADSPEC)
435AC_SUBST(THREADLDFLAGS)
436
437if test -d sysdep; then true; else mkdir sysdep; fi
438AC_LINK_FILES(sysdep/$sysdeps_dir/locks.h, sysdep/locks.h)
439
440HASH_SYNC_SPEC=
441# Hash synchronization is only useful with posix threads right now.
442if test "$enable_hash_synchronization" = yes && test "$THREADS" = "posix"; then
443 HASH_SYNC_SPEC=-fhash-synchronization
444 AC_DEFINE(JV_HASH_SYNCHRONIZATION, 1, [Define if hash synchronization is in use])
445fi
446AC_SUBST(HASH_SYNC_SPEC)
447
448
449AM_CONDITIONAL(USING_GCC, test "$GCC" = yes)
450
451CANADIAN=no
452NULL_TARGET=no
453NATIVE=yes
454
455# We're in the tree with gcc, and need to include some of its headers.
456GCC_UNWIND_INCLUDE='-I$(libgcj_basedir)/../gcc'
457
458# Figure out where generated headers like libgcj-config.h get installed.
459changequote(,)dnl
460gcc_version_trigger=${libgcj_basedir}/../gcc/version.c
461gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
462gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
463tool_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include
464changequote([,])dnl
465AC_SUBST(tool_include_dir)
466AC_SUBST(gcc_version)
467
468if test -n "${with_cross_host}"; then
469 # We are being configured with a cross compiler. AC_REPLACE_FUNCS
470 # may not work correctly, because the compiler may not be able to
471 # link executables.
472
473 # We assume newlib. This lets us hard-code the functions we know
474 # we'll have.
475 AC_DEFINE(HAVE_MEMMOVE)
476 AC_DEFINE(HAVE_MEMCPY)
477 AC_DEFINE(HAVE_STRERROR)
478 AC_DEFINE(HAVE_TIME)
479 AC_DEFINE(HAVE_GMTIME_R)
480 AC_DEFINE(HAVE_LOCALTIME_R)
481 dnl This is only for POSIX threads.
482 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
483 dnl We also assume we are using gcc, which provides alloca.
484 AC_DEFINE(HAVE_ALLOCA)
485
486 dnl Assume we do not have getuid and friends.
487 AC_DEFINE(NO_GETUID)
488
489 # If Canadian cross, then don't pick up tools from the build
490 # directory.
491 if test x"$build" != x"$with_cross_host" && x"$build" != x"$target"; then
492 CANADIAN=yes
493 GCC_UNWIND_INCLUDE=
494 GCJ="${target_alias}-gcj"
495 fi
496 NATIVE=no
497else
498 AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep opendir)
499 AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r getcwd)
500 AC_CHECK_FUNCS(access stat mkdir rename rmdir unlink realpath utime chmod)
501 AC_CHECK_FUNCS(nl_langinfo setlocale)
502 AC_CHECK_FUNCS(inet_aton inet_addr, break)
503 AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
504 AC_CHECK_FUNCS(fork execvp pipe sigaction)
505 AC_CHECK_HEADERS(execinfo.h unistd.h dlfcn.h)
506 AC_CHECK_FUNC(backtrace, [
507 case "$host" in
508 ia64-*-linux*)
509 # Has broken backtrace()
510 ;;
511 *)
512 AC_DEFINE(HAVE_BACKTRACE)
513 ;;
514 esac
515 ])
516
517 AC_CHECK_LIB(dl, dladdr, [
518 AC_DEFINE(HAVE_DLADDR)])
519 AC_CHECK_FILES(/proc/self/exe, [
520 AC_DEFINE(HAVE_PROC_SELF_EXE)])
521
522 AM_ICONV
523 AM_LC_MESSAGES
524 AC_STRUCT_TIMEZONE
525
526 AC_CHECK_FUNCS(gethostbyname_r, [
527 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
528 # There are two different kinds of gethostbyname_r.
529 # We look for the one that returns `int'.
530 # Hopefully this check is robust enough.
531 AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [
532 AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT)])
533
534 case " $GCINCS " in
535 *" -D_REENTRANT "*) ;;
536 *)
537 dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT
538 AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT],
539 [libjava_cv_gethostbyname_r_needs_reentrant],
540 [ AC_LANG_SAVE
541 AC_LANG_CPLUSPLUS
542 AC_TRY_COMPILE([#include <netdb.h>],
543 [gethostbyname_r("", 0, 0);],
544 [libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl
545 CPPFLAGS_SAVE="$CPPFLAGS"
546 CPPFLAGS="$CPPFLAGS -D_REENTRANT"
547 AC_TRY_COMPILE([#include <netdb.h>], [gethostbyname_r("", 0, 0);],
548 [libjava_cv_gethostbyname_r_needs_reentrant=yes],
549 [libjava_cv_gethostbyname_r_needs_reentrant=fail])
550 CPPFLAGS="$CPPFLAGS_SAVE"
551 ])
552 AC_LANG_RESTORE
553 ])
554 if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then
555 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
556 fi
557 ;;
558 esac
559
560 AC_CACHE_CHECK([for struct hostent_data],
561 [libjava_cv_struct_hostent_data], [dnl
562 AC_TRY_COMPILE([
563#if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
564# define _REENTRANT 1
565#endif
566#include <netdb.h>], [struct hostent_data data;],
567 [libjava_cv_struct_hostent_data=yes],
568 [libjava_cv_struct_hostent_data=no])])
569 if test "x$libjava_cv_struct_hostent_data" = xyes; then
570 AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1,
571 [Define if struct hostent_data is defined in netdb.h])
572 fi
573 ])
574
575 # FIXME: libjava source code expects to find a prototype for
576 # gethostbyaddr_r in netdb.h. The outer check ensures that
577 # HAVE_GETHOSTBYADDR_R will not be defined if the prototype fails
578 # to exist where expected. (The root issue: AC_CHECK_FUNCS assumes C
579 # linkage check is enough, yet C++ code requires proper prototypes.)
580 AC_EGREP_HEADER(gethostbyaddr_r, netdb.h, [
581 AC_CHECK_FUNCS(gethostbyaddr_r, [
582 AC_DEFINE(HAVE_GETHOSTBYADDR_R)
583 # There are two different kinds of gethostbyaddr_r.
584 # We look for the one that returns `int'.
585 # Hopefully this check is robust enough.
586 AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [
587 AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT)])])])
588
589 AC_CHECK_FUNCS(gethostname, [
590 AC_DEFINE(HAVE_GETHOSTNAME)
591 AC_EGREP_HEADER(gethostname, unistd.h, [
592 AC_DEFINE(HAVE_GETHOSTNAME_DECL)])])
593
594 # Look for these functions in the thread library, but only bother
595 # if using POSIX threads.
596 if test "$THREADS" = posix; then
597 save_LIBS="$LIBS"
598 LIBS="$LIBS $THREADLIBS"
599 # Some POSIX thread systems don't have pthread_mutexattr_settype.
600 # E.g., Solaris.
601 AC_CHECK_FUNCS(pthread_mutexattr_settype pthread_mutexattr_setkind_np)
602
603 # Look for sched_yield. Up to Solaris 2.6, it is in libposix4, since
604 # Solaris 7 the name librt is preferred.
605 AC_CHECK_FUNCS(sched_yield, , [
606 AC_CHECK_LIB(rt, sched_yield, [
607 AC_DEFINE(HAVE_SCHED_YIELD)
608 THREADLIBS="$THREADLIBS -lrt"
609 THREADSPEC="$THREADSPEC -lrt"], [
610 AC_CHECK_LIB(posix4, sched_yield, [
611 AC_DEFINE(HAVE_SCHED_YIELD)
612 THREADLIBS="$THREADLIBS -lposix4"
613 THREADSPEC="$THREADSPEC -lposix4"])])])
614 LIBS="$save_LIBS"
615
616 # We can save a little space at runtime if the mutex has m_count
617 # or __m_count. This is a nice hack for Linux.
618 AC_TRY_COMPILE([#include <pthread.h>], [
619 extern pthread_mutex_t *mutex; int q = mutex->m_count;
620 ], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT), [
621 AC_TRY_COMPILE([#include <pthread.h>], [
622 extern pthread_mutex_t *mutex; int q = mutex->__m_count;
623 ], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT))])
624 fi
625
626 # We require a way to get the time.
627 time_found=no
628 AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes)
629 if test "$time_found" = no; then
630 AC_MSG_ERROR([no function found to get the time])
631 fi
632
633 AC_CHECK_FUNCS(memmove)
634
635 # We require memcpy.
636 memcpy_found=no
637 AC_CHECK_FUNCS(memcpy, memcpy_found=yes)
638 if test "$memcpy_found" = no; then
639 AC_MSG_ERROR([memcpy is required])
640 fi
641
642 AC_CHECK_LIB(dl, dlopen, [
643 AC_DEFINE(HAVE_DLOPEN, 1, [Define if dlopen is available])])
644
645 # Some library-finding code we stole from Tcl.
646 #--------------------------------------------------------------------
647 # Check for the existence of the -lsocket and -lnsl libraries.
648 # The order here is important, so that they end up in the right
649 # order in the command line generated by make. Here are some
650 # special considerations:
651 # 1. Use "connect" and "accept" to check for -lsocket, and
652 # "gethostbyname" to check for -lnsl.
653 # 2. Use each function name only once: can't redo a check because
654 # autoconf caches the results of the last check and won't redo it.
655 # 3. Use -lnsl and -lsocket only if they supply procedures that
656 # aren't already present in the normal libraries. This is because
657 # IRIX 5.2 has libraries, but they aren't needed and they're
658 # bogus: they goof up name resolution if used.
659 # 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
660 # To get around this problem, check for both libraries together
661 # if -lsocket doesn't work by itself.
662 #--------------------------------------------------------------------
663
664 AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets,
665 [gcj_cv_lib_sockets=
666 gcj_checkBoth=0
667 unset ac_cv_func_connect
668 AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1)
669 if test "$gcj_checkSocket" = 1; then
670 unset ac_cv_func_connect
671 AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket",
672 gcj_checkBoth=1)
673 fi
674 if test "$gcj_checkBoth" = 1; then
675 gcj_oldLibs=$LIBS
676 LIBS="$LIBS -lsocket -lnsl"
677 unset ac_cv_func_accept
678 AC_CHECK_FUNC(accept,
679 [gcj_checkNsl=0
680 gcj_cv_lib_sockets="-lsocket -lnsl"])
681 unset ac_cv_func_accept
682 LIBS=$gcj_oldLibs
683 fi
684 unset ac_cv_func_gethostbyname
685 gcj_oldLibs=$LIBS
686 LIBS="$LIBS $gcj_cv_lib_sockets"
687 AC_CHECK_FUNC(gethostbyname, ,
688 [AC_CHECK_LIB(nsl, main,
689 [gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])])
690 unset ac_cv_func_gethostbyname
691 LIBS=$gcj_oldLIBS
692 ])
693 SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets"
694
695 if test "$with_system_zlib" = yes; then
696 AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=)
697 fi
698
699 # On Solaris, and maybe other architectures, the Boehm collector
700 # requires -ldl.
701 if test "$GC" = boehm; then
702 AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl")
703 fi
704
705 if test -z "${with_multisubdir}"; then
706 builddotdot=.
707 else
708changequote(<<,>>)
709 builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`
710changequote([,])
711 fi
712 if test -x "${builddotdot}/../../gcc/gcj"; then
713 dir="`cd ${builddotdot}/../../gcc && pwd`"
714 GCJ="$dir/gcj -B`pwd`/ -B$dir/"
715 else
716 CANADIAN=yes
717 NULL_TARGET=yes
718 GCJ="gcj -B`pwd`/"
719 fi
720fi
721
722# Create it, so that compile/link tests don't fail
723test -f libgcj.spec || touch libgcj.spec
724
725# We must search the source tree for java.lang, since we still don't
726# have libgcj.jar nor java/lang/*.class
727GCJ_SAVE_CPPFLAGS=$CPPFLAGS
728CPPFLAGS="$CPPFLAGS -I`pwd` -I`cd $srcdir && pwd`"
729
730# Since some classes depend on this one, we need its source available
731# before we can do any GCJ compilation test :-(
732if test ! -f gnu/classpath/Configuration.java; then
733 test -d gnu || mkdir gnu
734 test -d gnu/classpath || mkdir gnu/classpath
735 sed 's,@LIBGCJDEBUG@,$LIBGCJDEBUG,' \
736 < $srcdir/gnu/classpath/Configuration.java.in \
737 > gnu/classpath/Configuration.java
738 # We do not want to redirect the output of the grep below to /dev/null,
739 # but we add /dev/null to the input list so that grep will print the
740 # filename of Configuration.java in case it finds any matches.
741 if grep @ gnu/classpath/Configuration.java /dev/null; then
742 AC_MSG_ERROR([configure.in is missing the substitutions above])
743 fi
744fi
745
746LT_AC_PROG_GCJ
747
748CPPFLAGS=$GCJ_SAVE_CPPFLAGS
749
750AC_COMPILE_CHECK_SIZEOF(void *)
751
752ZLIBS=
753SYS_ZLIBS=
754ZINCS=
755
756if test -z "$ZLIBSPEC"; then
757 # Use zlib from the GCC tree.
758 ZINCS='-I$(top_srcdir)/../zlib'
759 ZLIBS=../zlib/libzgcj_convenience.la
760else
761 # System's zlib.
762 SYS_ZLIBS="$ZLIBSPEC"
763fi
764AC_SUBST(ZLIBS)
765AC_SUBST(SYS_ZLIBS)
766AC_SUBST(ZINCS)
767AC_SUBST(DIVIDESPEC)
768AC_SUBST(CHECKREFSPEC)
769AC_SUBST(EXCEPTIONSPEC)
770
771AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
772AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
773AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
774AM_CONDITIONAL(NEEDS_DATA_START, test "$NEEDS_DATA_START" = yes && test "$NATIVE" = yes)
775AC_SUBST(GCC_UNWIND_INCLUDE)
776
777if test -n "$with_cross_host" &&
778 test x"$with_cross_host" != x"no"; then
779 toolexecdir='$(exec_prefix)/$(target_alias)'
780 toolexecmainlibdir='$(toolexecdir)/lib'
781else
782 toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
783 toolexecmainlibdir='$(libdir)'
784fi
785toolexeclibdir=$toolexecmainlibdir/`$CC -print-multi-os-directory`
786AC_SUBST(toolexecdir)
787AC_SUBST(toolexecmainlibdir)
788AC_SUBST(toolexeclibdir)
789
790AC_SUBST(AM_RUNTESTFLAGS)
791
792# Determine gcj version number.
793changequote(<<,>>)
794gcjversion=`$GCJ -v 2>&1 | sed -n 's/^.*version \([^ ]*\).*$/\1/p'`
795changequote([,])
796GCJVERSION=$gcjversion
797AC_SUBST(GCJVERSION)
798AC_DEFINE_UNQUOTED(GCJVERSION, "$GCJVERSION", [Short GCJ version])
799
800dnl Work around a g++ bug. Reported to gcc-bugs@gcc.gnu.org on Jan 22, 2000.
801AC_MSG_CHECKING([for g++ -ffloat-store bug])
802save_CFLAGS="$CFLAGS"
803CFLAGS="-x c++ -O2 -ffloat-store"
804AC_TRY_COMPILE([#include <math.h>], ,
805 [AC_MSG_RESULT(no)],
806 [AC_DEFINE(__NO_MATH_INLINES)
807 AC_MSG_RESULT(yes)])
808CFLAGS="$save_CFLAGS"
809
810dnl We check for sys/filio.h because Solaris 2.5 defines FIONREAD there.
811dnl On that system, sys/ioctl.h will not include sys/filio.h unless
812dnl BSD_COMP is defined; just including sys/filio.h is simpler.
813AC_CHECK_HEADERS(unistd.h bstring.h sys/time.h sys/types.h fcntl.h sys/ioctl.h sys/filio.h sys/stat.h sys/select.h sys/socket.h netinet/in.h arpa/inet.h netdb.h pwd.h sys/config.h stdint.h langinfo.h locale.h)
814dnl We avoid AC_HEADER_DIRENT since we really only care about dirent.h
815dnl for now. If you change this, you also must update natFile.cc.
816AC_CHECK_HEADERS(dirent.h)
817AC_CHECK_HEADERS(inttypes.h, [
818 AC_DEFINE(HAVE_INTTYPES_H, 1, [Define if <inttypes.h> is available])
819 AC_DEFINE(JV_HAVE_INTTYPES_H, 1, [Define if <inttypes.h> is available])
820])
821AC_HEADER_SYS_WAIT
822
823AC_CHECK_TYPE([ssize_t], [int])
824
825AC_MSG_CHECKING([for in_addr_t])
826AC_TRY_COMPILE([#include <sys/types.h>
827#if STDC_HEADERS
828#include <stdlib.h>
829#include <stddef.h>
830#endif
831#if HAVE_NETINET_IN_H
832#include <netinet/in.h>
833#endif], [in_addr_t foo;],
834 [AC_DEFINE([HAVE_IN_ADDR_T])
835 AC_MSG_RESULT(yes)],
836 [AC_MSG_RESULT(no)])
837
838AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h])
839AC_TRY_COMPILE([#include <netinet/in.h>], [struct ip_mreq mreq;],
840 [AC_DEFINE(HAVE_STRUCT_IP_MREQ)
841 AC_MSG_RESULT(yes)],
842 [AC_MSG_RESULT(no)])
843
844AC_MSG_CHECKING([whether struct ipv6_mreq is in netinet/in.h])
845AC_TRY_COMPILE([#include <netinet/in.h>], [struct ipv6_mreq mreq6;],
846 [AC_DEFINE(HAVE_STRUCT_IPV6_MREQ)
847 AC_MSG_RESULT(yes)],
848 [AC_MSG_RESULT(no)])
849
850AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h])
851AC_TRY_COMPILE([#include <netinet/in.h>], [struct sockaddr_in6 addr6;],
852 [AC_DEFINE(HAVE_INET6)
853 AC_MSG_RESULT(yes)],
854 [AC_MSG_RESULT(no)])
855
856AC_MSG_CHECKING([for socklen_t in sys/socket.h])
857AC_TRY_COMPILE([#define _POSIX_PII_SOCKET
858#include <sys/types.h>
859#include <sys/socket.h>], [socklen_t x = 5;],
860 [AC_DEFINE(HAVE_SOCKLEN_T)
861 AC_MSG_RESULT(yes)],
862 [AC_MSG_RESULT(no)])
863
864AC_MSG_CHECKING([for tm_gmtoff in struct tm])
865AC_TRY_COMPILE([#include <time.h>], [struct tm tim; tim.tm_gmtoff = 0;],
866 [AC_DEFINE(STRUCT_TM_HAS_GMTOFF)
867 AC_MSG_RESULT(yes)],
868 [AC_MSG_RESULT(no)
869 AC_MSG_CHECKING([for global timezone variable])
870 dnl FIXME: we don't want a link check here because that won't work
871 dnl when cross-compiling. So instead we make an assumption that
872 dnl the header file will mention timezone if it exists.
873 AC_TRY_COMPILE([#include <time.h>], [long z2 = timezone;],
874 [AC_DEFINE(HAVE_TIMEZONE)
875 AC_MSG_RESULT(yes)],
876 [AC_MSG_RESULT(no)])])
877
878AC_FUNC_ALLOCA
879
880AC_CHECK_PROGS(PERL, perl, false)
881
882SYSDEP_SOURCES=
883
884case "${host}" in
885 i?86-*-linux*)
886 SIGNAL_HANDLER=include/i386-signal.h
887 ;;
888 sparc*-sun-solaris*)
889 SIGNAL_HANDLER=include/sparc-signal.h
890 ;;
891# ia64-*)
892# SYSDEP_SOURCES=sysdep/ia64.c
893# test -d sysdep || mkdir sysdep
894# ;;
895 ia64-*-linux*)
896 SIGNAL_HANDLER=include/dwarf2-signal.h
897 ;;
898 powerpc-*-linux*)
899 SIGNAL_HANDLER=include/dwarf2-signal.h
900 ;;
901 alpha*-*-linux*)
902 SIGNAL_HANDLER=include/dwarf2-signal.h
903 ;;
904 sparc*-*-linux*)
905 SIGNAL_HANDLER=include/dwarf2-signal.h
906 ;;
907 *mingw*)
908 SIGNAL_HANDLER=include/win32-signal.h
909 ;;
910 *)
911 SIGNAL_HANDLER=include/default-signal.h
912 ;;
913esac
914
915# If we're using sjlj exceptions, forget what we just learned.
916if test "$enable_sjlj_exceptions" = yes; then
917 SIGNAL_HANDLER=include/default-signal.h
918fi
919
920AC_SUBST(SYSDEP_SOURCES)
921
922AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h)
923
924if test "${multilib}" = "yes"; then
925 multilib_arg="--enable-multilib"
926else
927 multilib_arg=
928fi
929
930AC_PATH_XTRA
931
932dnl Determine which AWT peer libraries to build
933AC_ARG_ENABLE(java-awt,
934[ --enable-java-awt list of AWT peer implementations to be built])
935
936peerlibs="`echo ${enable_java_awt} | tr ',' ' '`"
937use_xlib_awt=""
938use_gtk_awt=""
939
940for peer in $peerlibs ; do
941 case $peer in
942 xlib)
943 if [test "$no_x" = yes]; then
944 echo "*** xlib peers requested but no X library available" 1>&2
945 exit 1
946 else
947 use_xlib_awt="yes"
948 fi
949 ;;
950 gtk)
951 # Nothing, yet...
952 ;;
953 no)
954 use_xlib_awt=
955 use_gtk_awt=
956 break
957 ;;
958 *)
959 echo "*** unrecognised argument \"${peer}\" for --enable-java-awt" 1>&2
960 exit 1
961 esac
962done
963
964AM_CONDITIONAL(XLIB_AWT, test "$use_xlib_awt" = yes)
965AM_CONDITIONAL(GTK_AWT, test "$use_gtk_awt" = yes)
966
967
968here=`pwd`
969AC_SUBST(here)
970
971# We get this from the environment.
972AC_SUBST(GCJFLAGS)
973
974AC_OUTPUT(Makefile libgcj.spec libgcj-test.spec gnu/classpath/Configuration.java gcj/Makefile include/Makefile testsuite/Makefile,
975[# Only add multilib support code if we just rebuilt top-level Makefile.
976case " $CONFIG_FILES " in
977 *" Makefile "*)
978 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
979 ac_file=Makefile . ${libgcj_basedir}/../config-ml.in
980 ;;
981esac
982
983# Make subdirectories and `.d' files. Look in both srcdir and
984# builddir for the .java files.
985h=`pwd`
986: > deps.mk
987( (cd $srcdir && find . \( -name '*.java' -o -name '*.cc' \) -print) ;
988 find . \( -name '*.java' -o -name '*.cc' \) -print) | \
989 fgrep -v testsuite | \
990 sed -e 's/\.java/.d/'\;'s/\.cc/.d/' | \
991 while read f; do
992 echo "include $f" >> deps.mk
993 test -f $f || {
994changequote(<<,>>)
995 d=`echo $f | sed -e 's,/[^/]*$,,'`
996changequote([,])
997 if test ! -d $d; then
998 $libgcj_basedir/../mkinstalldirs $d
999 fi;
1000 echo > $f
1001 }
1002 done
1003],
1004srcdir=${srcdir}
1005host=${host}
1006target=${target}
1007with_multisubdir=${with_multisubdir}
1008ac_configure_args="${multilib_arg} ${ac_configure_args}"
1009CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
1010libgcj_basedir=${libgcj_basedir}
1011CC="${CC}"
1012CXX="${CXX}"
1013)
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