1 dnl Process this with autoconf to create configure
2 AC_INIT(java/lang/System.java)
4 dnl Can't be done in LIBGCJ_CONFIGURE because that confuses automake.
9 dnl We use these options to decide which functions to include.
10 AC_ARG_WITH(target-subdir,
11 [ --with-target-subdir=SUBDIR
12 configuring in a subdirectory])
13 AC_ARG_WITH(cross-host,
14 [ --with-cross-host=HOST configuring with a cross compiler])
18 AM_CONFIG_HEADER(include/config.h)
22 if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
29 dnl The -no-testsuite modules omit the test subdir.
30 AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
32 dnl See whether the user prefers size or speed for Character.
33 dnl The default is size.
34 AC_ARG_ENABLE(fast-character,
35 [ --enable-fast-character prefer speed over size for Character],
37 , AC_DEFINE(COMPACT_CHARACTER))
39 dnl Should the runtime set system properties by examining the
40 dnl environment variable GCJ_PROPERTIES?
41 AC_ARG_ENABLE(getenv-properties,
42 [ --disable-getenv-properties
43 don't set system properties from GCJ_PROPERTIES])
45 dnl Whether GCJ_PROPERTIES is used depends on the target.
46 if test -n "$enable_getenv_properties"; then
47 enable_getenv_properties=${enable_getenv_properties_default-yes}
49 if test "$enable_getenv_properties" = no; then
50 AC_DEFINE(DISABLE_GETENV_PROPERTIES)
53 dnl See if the user has requested runtime debugging.
54 AC_ARG_ENABLE(libgcj-debug,
55 [ --enable-libgcj-debug enable runtime debugging code],
56 if test "$enable_libgcj_debug" = yes; then
60 dnl See if the user has the interpreter included.
61 AC_ARG_ENABLE(interpreter,
62 [ --enable-interpreter enable interpreter],
63 if test "$enable_interpreter" = yes; then
64 AC_DEFINE(INTERPRETER)
68 dnl See if we should use setjmp/longjmp exceptions
69 AC_ARG_ENABLE(sjlj-exceptions,
70 [ --enable-sjlj-exceptions use setjmp/longjmp exceptions],
71 if test "$enable_sjlj_exceptions" = yes; then
72 # This can be set in configure.host.
76 if test "$libgcj_sjlj" = yes; then
77 EXCEPTIONSPEC="-fsjlj-exceptions"
78 AC_DEFINE(SJLJ_EXCEPTIONS)
81 dnl See if the user wants to disable java.net. This is the mildly
82 dnl ugly way that we admit that target-side configuration sucks.
83 AC_ARG_ENABLE(java-net,
84 [ --disable-java-net disable java.net])
86 dnl Whether java.net is built by default can depend on the target.
87 if test -n "$enable_java_net"; then
88 enable_java_net=${enable_java_net_default-yes}
90 if test "$enable_java_net" = no; then
91 AC_DEFINE(DISABLE_JAVA_NET)
94 dnl If the target is an eCos system, use the appropriate eCos
96 dnl FIXME: this should not be a local option but a global target
97 dnl system; at present there is no eCos target.
100 [ --with-ecos enable runtime eCos target support],
101 TARGET_ECOS="$with_ecos"
104 case "$TARGET_ECOS" in
106 FILE_DESCRIPTOR=natFileDescriptorPosix.cc
107 PROCESS=${PROCESS-Posix}
110 FILE_DESCRIPTOR=natFileDescriptorEcos.cc
116 AC_EGREP_HEADER(uint32_t, stdint.h, AC_DEFINE(HAVE_INT32_DEFINED))
117 AC_EGREP_HEADER(uint32_t, inttypes.h, AC_DEFINE(HAVE_INT32_DEFINED))
118 AC_EGREP_HEADER(u_int32_t, sys/types.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
119 AC_EGREP_HEADER(u_int32_t, sys/config.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
122 dnl These may not be defined in a non-ANS conformant embedded system.
123 dnl FIXME: Should these case a runtime exception in that case?
124 AC_EGREP_HEADER(mktime, time.h, AC_DEFINE(HAVE_MKTIME))
125 AC_EGREP_HEADER(localtime, time.h, AC_DEFINE(HAVE_LOCALTIME))
127 dnl Create the subdirectory for natFileDescriptor.cc, or the attempt
128 dnl to create the link will fail.
129 test -d java || mkdir java
130 test -d java/io || mkdir java/io
131 AC_LINK_FILES(java/io/$FILE_DESCRIPTOR, java/io/natFileDescriptor.cc)
133 dnl Likewise for ConcreteProcess.java and natConcreteProcess.cc.
134 test -d java/lang || mkdir java/lang
135 AC_LINK_FILES(java/lang/${PROCESS}Process.java, java/lang/ConcreteProcess.java)
136 AC_LINK_FILES(java/lang/nat${PROCESS}Process.cc, java/lang/natConcreteProcess.cc)
141 AC_ARG_WITH(system-zlib,
142 [ --with-system-zlib use installed libz])
146 dnl FIXME: this should be _libs on some hosts.
149 dnl Allow the GC to be disabled. Can be useful when debugging.
150 AC_MSG_CHECKING([for garbage collector to use])
151 AC_ARG_ENABLE(java-gc,
152 changequote(<<,>>)dnl
153 << --enable-java-gc=TYPE choose garbage collector [boehm]>>,
165 GCDEPS='$(top_builddir)/../boehm-gc/libgcjgc.la'
166 # We include the path to the boehm-gc build directory.
167 # See Makefile.am to understand why.
168 GCLIBS="$GCDEPS -L\$(here)/../boehm-gc/$libsubdir"
169 GCINCS='-I$(top_srcdir)/../boehm-gc -I$(top_builddir)/../boehm-gc'
171 dnl We also want to pick up some cpp flags required when including
172 dnl boehm-config.h. Yuck.
173 GCINCS="$GCINCS `cat ../boehm-gc/boehm-cflags`"
176 dnl The POSIX thread support needs to know this.
177 AC_DEFINE(HAVE_BOEHM_GC)
185 AC_MSG_ERROR(unrecognized collector \"$GC\")
193 AC_LINK_FILES(include/$GCHDR, include/java-gc.h)
196 dnl Note that this code is kept in sync with similar code in gcc/configure.in.
197 dnl In particular both packages must make the same decision about which
198 dnl thread package to use.
199 AC_MSG_CHECKING([for threads package to use])
200 AC_ARG_ENABLE(threads, [ --enable-threads=TYPE choose threading package],
202 dnl FIXME: figure out native threads to use here.
205 if test "$THREADS" = yes; then
211 # FIXME: this isn't correct in all cases.
218 # FIXME: for now, choose POSIX, because we implement that.
219 # Later, choose irix threads.
223 # FIXME: for now, choose POSIX, because we implement that.
224 # Later, choose solaris threads.
242 AC_DEFINE(LINUX_THREADS)
246 decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
247 AC_MSG_ERROR(thread package $THREADS not yet supported)
250 AC_MSG_ERROR($THREADS is an unknown thread package)
253 AC_MSG_RESULT($THREADS)
265 THREADOBJS=posix-threads.lo
266 THREADH=posix-threads.h
267 # MIT pthreads doesn't seem to have the mutexattr functions.
268 # But for now we don't check for it. We just assume you aren't
269 # using MIT pthreads.
270 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
274 THREADOBJS=no-threads.lo
278 AC_LINK_FILES(include/$THREADH, include/java-threads.h)
285 AM_CONDITIONAL(USING_GCC, test "$GCC" = yes)
291 # Find eh-common.h and support headers. If we're in the tree with
292 # gcc, then look there. Otherwise look in compat-include. If all else
293 # fails, just hope the user has set things up somehow.
294 if test -r $srcdir/../gcc/eh-common.h; then
295 EH_COMMON_INCLUDE='-I$(top_srcdir)/../gcc -I$(top_srcdir)/../include'
297 if test -d $srcdir/../compat-include; then
298 EH_COMMON_INCLUDE='-I$(top_srcdir)/../compat-include'
304 if test -n "${with_cross_host}"; then
305 # We are being configured with a cross compiler. AC_REPLACE_FUNCS
306 # may not work correctly, because the compiler may not be able to
309 # We assume newlib. This lets us hard-code the functions we know
311 AC_DEFINE(HAVE_MEMMOVE)
312 AC_DEFINE(HAVE_MEMCPY)
313 AC_DEFINE(HAVE_STRERROR)
314 AC_DEFINE(HAVE_GMTIME_R)
315 AC_DEFINE(HAVE_LOCALTIME_R)
316 dnl This is only for POSIX threads.
317 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
318 dnl We also assume we are using gcc, which provides alloca.
319 AC_DEFINE(HAVE_ALLOCA)
323 # If Canadian cross, then don't pick up tools from the build
325 if test "$build" != "$with_cross_host"; then
328 GCJ="${target_alias}-gcj"
334 AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep)
335 AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r)
336 AC_CHECK_FUNCS(access stat mkdir rename rmdir unlink realpath)
337 AC_CHECK_FUNCS(inet_aton inet_addr, break)
338 AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
340 AC_CHECK_FUNCS(gethostbyname_r, [
341 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
342 # There are two different kinds of gethostbyname_r.
343 # We look for the one that returns `int'.
344 # Hopefully this check is robust enough.
345 AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [
346 AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT)])
349 *" -D_REENTRANT "*) ;;
351 dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT
352 AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT],
353 [libjava_cv_gethostbyname_r_needs_reentrant],
356 AC_TRY_COMPILE([#include <netdb.h>],
357 [gethostbyname_r("", 0, 0);],
358 [libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl
359 CPPFLAGS_SAVE="$CPPFLAGS"
360 CPPFLAGS="$CPPFLAGS -D_REENTRANT"
361 AC_TRY_COMPILE([#include <netdb.h>], [gethostbyname_r("", 0, 0);],
362 [libjava_cv_gethostbyname_r_needs_reentrant=yes],
363 [libjava_cv_gethostbyname_r_needs_reentrant=fail])
364 CPPFLAGS="$CPPFLAGS_SAVE"
368 if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then
369 AC_DEFINE(GETHOSTBYNAME_R_NEEDS_REENTRANT, 1, [Define if gethostbyname_r is only declared if _REENTRANT is defined])
374 AC_CACHE_CHECK([for struct hostent_data],
375 [libjava_cv_struct_hostent_data], [dnl
377 #if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
378 # define _REENTRANT 1
380 #include <netdb.h>], [struct hostent_data data;],
381 [libjava_cv_struct_hostent_data=yes],
382 [libjava_cv_struct_hostent_data=no])])
383 if test "x$libjava_cv_struct_hostent_data" = xyes; then
384 AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1,
385 [Define if struct hostent_data is defined in netdb.h])
389 AC_CHECK_FUNCS(gethostbyaddr_r, [
390 AC_DEFINE(HAVE_GETHOSTBYADDR_R)
391 # There are two different kinds of gethostbyaddr_r.
392 # We look for the one that returns `int'.
393 # Hopefully this check is robust enough.
394 AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [
395 AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT)])])
397 AC_CHECK_FUNCS(gethostname, [
398 AC_DEFINE(HAVE_GETHOSTNAME)
399 AC_EGREP_HEADER(gethostname, unistd.h, [
400 AC_DEFINE(HAVE_GETHOSTNAME_DECL)])])
402 # Look for these functions in the thread library, but only bother
403 # if using POSIX threads.
404 if test "$THREADS" = posix; then
406 LIBS="$LIBS $THREADLIBS"
407 # Some POSIX thread systems don't have pthread_mutexattr_settype.
409 AC_CHECK_FUNCS(pthread_mutexattr_settype pthread_mutexattr_setkind_np)
411 # Look for sched_yield. Up to Solaris 2.6, it is in libposix4, since
412 # Solaris 7 the name librt is preferred.
413 AC_CHECK_FUNCS(sched_yield, , [
414 AC_CHECK_LIB(rt, sched_yield, [
415 AC_DEFINE(HAVE_SCHED_YIELD)
416 THREADLIBS="$THREADLIBS -lrt"
417 THREADSPEC="$THREADSPEC -lrt"], [
418 AC_CHECK_LIB(posix4, sched_yield, [
419 AC_DEFINE(HAVE_SCHED_YIELD)
420 THREADLIBS="$THREADLIBS -lposix4"
421 THREADSPEC="$THREADSPEC -lposix4"])])])
424 # We can save a little space at runtime if the mutex has m_count
425 # or __m_count. This is a nice hack for Linux.
426 AC_TRY_COMPILE([#include <pthread.h>], [
427 extern pthread_mutex_t *mutex; int q = mutex->m_count;
428 ], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT), [
429 AC_TRY_COMPILE([#include <pthread.h>], [
430 extern pthread_mutex_t *mutex; int q = mutex->__m_count;
431 ], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT))])
434 # We require a way to get the time.
436 AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes)
437 if test "$time_found" = no; then
438 AC_MSG_ERROR([no function found to get the time])
441 AC_CHECK_FUNCS(memmove)
445 AC_CHECK_FUNCS(memcpy, memcpy_found=yes)
446 if test "$memcpy_found" = no; then
447 AC_MSG_ERROR([memcpy is required])
450 # Some library-finding code we stole from Tcl.
451 #--------------------------------------------------------------------
452 # Check for the existence of the -lsocket and -lnsl libraries.
453 # The order here is important, so that they end up in the right
454 # order in the command line generated by make. Here are some
455 # special considerations:
456 # 1. Use "connect" and "accept" to check for -lsocket, and
457 # "gethostbyname" to check for -lnsl.
458 # 2. Use each function name only once: can't redo a check because
459 # autoconf caches the results of the last check and won't redo it.
460 # 3. Use -lnsl and -lsocket only if they supply procedures that
461 # aren't already present in the normal libraries. This is because
462 # IRIX 5.2 has libraries, but they aren't needed and they're
463 # bogus: they goof up name resolution if used.
464 # 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
465 # To get around this problem, check for both libraries together
466 # if -lsocket doesn't work by itself.
467 #--------------------------------------------------------------------
469 AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets,
472 unset ac_cv_func_connect
473 AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1)
474 if test "$gcj_checkSocket" = 1; then
475 unset ac_cv_func_connect
476 AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket",
479 if test "$gcj_checkBoth" = 1; then
481 LIBS="$LIBS -lsocket -lnsl"
482 unset ac_cv_func_accept
483 AC_CHECK_FUNC(accept,
485 gcj_cv_lib_sockets="-lsocket -lnsl"])
486 unset ac_cv_func_accept
489 unset ac_cv_func_gethostbyname
491 LIBS="$LIBS $gcj_cv_lib_sockets"
492 AC_CHECK_FUNC(gethostbyname, ,
493 [AC_CHECK_LIB(nsl, main,
494 [gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])])
495 unset ac_cv_func_gethostbyname
498 SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets"
500 if test "$with_system_zlib" = yes; then
501 AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=-lzgcj)
506 # On Solaris, and maybe other architectures, the Boehm collector
508 if test "$GC" = boehm; then
509 AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl")
512 if test -d "$libgcj_basedir/../gcc/java"; then
524 if test "x$ZLIBSPEC" = "x-lzgcj"; then
525 # We include the path to the zlib build directory.
526 # See Makefile.am to understand why.
527 ZDEPS='$(top_builddir)/../zlib/libzgcj.la'
528 ZLIBS="$ZDEPS -L\$(here)/../zlib/$libsubdir"
529 ZINCS='-I$(top_srcdir)/../zlib'
537 AC_SUBST(EXCEPTIONSPEC)
539 AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
540 AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
541 AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
542 AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
543 AC_SUBST(EH_COMMON_INCLUDE)
545 # Determine gcj version number.
546 if test "$GCJ" = ""; then
547 if test -z "${with_multisubdir}"; then
551 builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`
554 dir="`cd ${builddotdot}/../../gcc && pwd`"
555 GCJ="$dir/gcj -B$dir/"
558 gcjvers="`$GCJ -v 2>&1 | sed -n 's/^.*version \([^ ]*\).*$/\1/p'`"
560 AC_DEFINE_UNQUOTED(GCJVERSION, "$gcjvers")
562 # See if gcj supports -fuse-divide-subroutine. gcc 2.95 does not, and
563 # we want to continue to support that version.
564 AC_MSG_CHECKING([whether gcj supports -fuse-divide-subroutine])
565 cat > conftest.java << 'END'
566 public class conftest { }
569 $GCJ -classpath $srcdir -fuse-divide-subroutine -fsyntax-only \
570 conftest.java > /dev/null 2>&1 \
573 if test "$use_fuse" = no; then
576 AC_MSG_RESULT($use_fuse)
578 AC_SUBST(AM_RUNTESTFLAGS)
580 dnl We check for sys/filio.h because Solaris 2.5 defines FIONREAD there.
581 dnl On that system, sys/ioctl.h will not include sys/filio.h unless
582 dnl BSD_COMP is defined; just including sys/filio.h is simpler.
583 AC_CHECK_HEADERS(unistd.h bstring.h sys/time.h sys/types.h fcntl.h sys/ioctl.h sys/filio.h sys/stat.h sys/select.h sys/socket.h netinet/in.h arpa/inet.h netdb.h pwd.h sys/config.h inttypes.h stdint.h)
584 dnl We avoid AC_HEADER_DIRENT since we really only care about dirent.h
585 dnl for now. If you change this, you also must update natFile.cc.
586 AC_CHECK_HEADERS(dirent.h)
588 AC_CHECK_TYPE([ssize_t], [int])
590 AC_MSG_CHECKING([for in_addr_t])
591 AC_TRY_COMPILE([#include <sys/types.h>
596 #if HAVE_NETINET_IN_H
597 #include <netinet/in.h>
598 #endif], [in_addr_t foo;],
599 [AC_DEFINE([HAVE_IN_ADDR_T])
603 AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h])
604 AC_TRY_COMPILE([#include <netinet/in.h>], [struct ip_mreq mreq;],
605 [AC_DEFINE(HAVE_STRUCT_IP_MREQ)
609 AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h])
610 AC_TRY_COMPILE([#include <netinet/in.h>], [struct sockaddr_in6 addr6;],
611 [AC_DEFINE(HAVE_INET6)
615 AC_MSG_CHECKING([for socklen_t in sys/socket.h])
616 AC_TRY_COMPILE([#include <sys/socket.h>], [socklen_t x = 5;],
617 [AC_DEFINE(HAVE_SOCKLEN_T)
621 AC_MSG_CHECKING([for tm_gmtoff in struct tm])
622 AC_TRY_COMPILE([#include <time.h>], [struct tm tim; tim.tm_gmtoff = 0;],
623 [AC_DEFINE(STRUCT_TM_HAS_GMTOFF)
626 AC_MSG_CHECKING([for global timezone variable])
627 dnl FIXME: we don't want a link check here because that won't work
628 dnl when cross-compiling. So instead we make an assumption that
629 dnl the header file will mention timezone if it exists.
630 AC_TRY_COMPILE([#include <time.h>], [long z2 = timezone;],
631 [AC_DEFINE(HAVE_TIMEZONE)
633 [AC_MSG_RESULT(no)])])
637 AC_CHECK_PROGS(PERL, perl, false)
639 if test "$enable_sjlj_exceptions" = yes; then
640 SIGNAL_HANDLER=include/default-signal.h
644 SIGNAL_HANDLER=include/i386-signal.h
647 SIGNAL_HANDLER=include/sparc-signal.h
650 SIGNAL_HANDLER=include/default-signal.h
655 AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h)
657 if test "${multilib}" = "yes"; then
658 multilib_arg="--enable-multilib"
666 AC_OUTPUT(Makefile libgcj.spec gcj/Makefile include/Makefile testsuite/Makefile,
667 [if test -n "$CONFIG_FILES"; then
668 ac_file=Makefile . ${libgcj_basedir}/../config-ml.in
673 with_multisubdir=${with_multisubdir}
674 ac_configure_args="${multilib_arg} ${ac_configure_args}"
675 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
676 libgcj_basedir=${libgcj_basedir}