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)
20 # Only use libltdl for native builds.
21 if test -z "${with_cross_host}"; then
22 AC_LIBLTDL_CONVENIENCE
26 # Sigh. Libtool's macro doesn't do the right thing.
27 INCLTDL="-I\$(top_srcdir)/libltdl $INCLTDL"
33 AC_CONFIG_SUBDIRS($DIRLTDL)
35 if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
42 dnl The -no-testsuite modules omit the test subdir.
43 AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
45 dnl See whether the user prefers size or speed for Character.
46 dnl The default is size.
47 AC_ARG_ENABLE(fast-character,
48 [ --enable-fast-character prefer speed over size for Character],
50 , AC_DEFINE(COMPACT_CHARACTER))
52 AC_ARG_ENABLE(java-awt,
53 [ --enable-java-awt enable AWT implementation],
55 , [# Default to enabled on native systems.
56 if test -z "${with_cross_host}"; then
62 AM_CONDITIONAL(AWT, test "$awt" = yes)
64 dnl Should the runtime set system properties by examining the
65 dnl environment variable GCJ_PROPERTIES?
66 AC_ARG_ENABLE(getenv-properties,
67 [ --disable-getenv-properties
68 don't set system properties from GCJ_PROPERTIES])
70 dnl Whether GCJ_PROPERTIES is used depends on the target.
71 if test -n "$enable_getenv_properties"; then
72 enable_getenv_properties=${enable_getenv_properties_default-yes}
74 if test "$enable_getenv_properties" = no; then
75 AC_DEFINE(DISABLE_GETENV_PROPERTIES)
78 dnl See if the user has requested runtime debugging.
79 AC_ARG_ENABLE(libgcj-debug,
80 [ --enable-libgcj-debug enable runtime debugging code],
81 if test "$enable_libgcj_debug" = yes; then
85 dnl See if the user has the interpreter included.
86 AC_ARG_ENABLE(interpreter,
87 [ --enable-interpreter enable interpreter],
88 if test "$enable_interpreter" = yes; then
89 # This can also be set in configure.host.
90 libgcj_interpreter=yes
91 elif test "$enable_interpreter" = no; then
95 if test "$libgcj_interpreter" = yes; then
96 AC_DEFINE(INTERPRETER)
100 dnl See if we should use setjmp/longjmp exceptions
101 AC_ARG_ENABLE(sjlj-exceptions,
102 [ --enable-sjlj-exceptions use setjmp/longjmp exceptions],
103 if test "$enable_sjlj_exceptions" = yes; then
104 # This can be set in configure.host.
108 if test "$libgcj_sjlj" = yes; then
109 EXCEPTIONSPEC="-fsjlj-exceptions"
110 AC_DEFINE(SJLJ_EXCEPTIONS)
114 dnl Work around libgcc design flaw.
115 if test "$ac_cv_prog_gnu_ld" = yes; then
116 FORCELIBGCCSPEC="-u __rethrow -u __frame_state_for -lgcc"
119 AC_MSG_CHECKING([for data_start])
122 AC_TRY_LINK([extern int data_start;], [return ((int) &data_start);],
123 [AC_MSG_RESULT(found it)],
124 [LIBDATASTARTSPEC="-u data_start -lgcjdata"
126 AC_MSG_RESULT(missing)])
127 AC_SUBST(LIBDATASTARTSPEC)
129 dnl See if the user wants to disable java.net. This is the mildly
130 dnl ugly way that we admit that target-side configuration sucks.
131 AC_ARG_ENABLE(java-net,
132 [ --disable-java-net disable java.net])
134 dnl Whether java.net is built by default can depend on the target.
135 if test -n "$enable_java_net"; then
136 enable_java_net=${enable_java_net_default-yes}
138 if test "$enable_java_net" = no; then
139 AC_DEFINE(DISABLE_JAVA_NET)
142 dnl See if the user wants to disable JVMPI support.
144 [ --disable-jvmpi disable JVMPI support])
146 if test "$enable_jvmpi" != no; then
147 AC_DEFINE(ENABLE_JVMPI)
150 dnl If the target is an eCos system, use the appropriate eCos
152 dnl FIXME: this should not be a local option but a global target
153 dnl system; at present there is no eCos target.
156 [ --with-ecos enable runtime eCos target support],
157 TARGET_ECOS="$with_ecos"
160 case "$TARGET_ECOS" in
162 FILE_DESCRIPTOR=natFileDescriptorPosix.cc
163 PROCESS=${PROCESS-Posix}
166 FILE_DESCRIPTOR=natFileDescriptorEcos.cc
172 AC_EGREP_HEADER(uint32_t, stdint.h, AC_DEFINE(HAVE_INT32_DEFINED))
173 AC_EGREP_HEADER(uint32_t, inttypes.h, AC_DEFINE(HAVE_INT32_DEFINED))
174 AC_EGREP_HEADER(u_int32_t, sys/types.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
175 AC_EGREP_HEADER(u_int32_t, sys/config.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
178 dnl These may not be defined in a non-ANS conformant embedded system.
179 dnl FIXME: Should these case a runtime exception in that case?
180 AC_EGREP_HEADER(mktime, time.h, AC_DEFINE(HAVE_MKTIME))
181 AC_EGREP_HEADER(localtime, time.h, AC_DEFINE(HAVE_LOCALTIME))
183 dnl Create the subdirectory for natFileDescriptor.cc, or the attempt
184 dnl to create the link will fail.
185 test -d java || mkdir java
186 test -d java/io || mkdir java/io
187 AC_LINK_FILES(java/io/$FILE_DESCRIPTOR, java/io/natFileDescriptor.cc)
189 dnl Likewise for ConcreteProcess.java and natConcreteProcess.cc.
190 test -d java/lang || mkdir java/lang
191 AC_LINK_FILES(java/lang/${PROCESS}Process.java, java/lang/ConcreteProcess.java)
192 AC_LINK_FILES(java/lang/nat${PROCESS}Process.cc, java/lang/natConcreteProcess.cc)
197 LIBGCJTESTSPEC="-L`pwd`/.libs -rpath `pwd`/.libs"
198 AC_SUBST(LIBGCJTESTSPEC)
200 AC_ARG_WITH(system-zlib,
201 [ --with-system-zlib use installed libz])
205 AC_SUBST(ZLIBTESTSPEC)
207 dnl FIXME: this should be _libs on some hosts.
210 dnl Allow the GC to be disabled. Can be useful when debugging.
211 AC_MSG_CHECKING([for garbage collector to use])
212 AC_ARG_ENABLE(java-gc,
213 changequote(<<,>>)dnl
214 << --enable-java-gc=TYPE choose garbage collector [boehm]>>,
227 GCDEPS='$(top_builddir)/../boehm-gc/libgcjgc.la'
228 # We include the path to the boehm-gc build directory.
229 # See Makefile.am to understand why.
230 GCLIBS="$GCDEPS -L\$(here)/../boehm-gc/$libsubdir"
231 GCINCS='-I$(top_srcdir)/../boehm-gc -I$(top_builddir)/../boehm-gc'
233 GCTESTSPEC="-L`pwd`/../boehm-gc/.libs -rpath `pwd`/../boehm-gc/.libs"
234 dnl We also want to pick up some cpp flags required when including
235 dnl boehm-config.h. Yuck.
236 GCINCS="$GCINCS `cat ../boehm-gc/boehm-cflags`"
239 dnl The POSIX thread support needs to know this.
240 AC_DEFINE(HAVE_BOEHM_GC)
248 AC_MSG_ERROR(unrecognized collector \"$GC\")
257 AC_LINK_FILES(include/$GCHDR, include/java-gc.h)
260 dnl Note that this code is kept in sync with similar code in gcc/configure.in.
261 dnl In particular both packages must make the same decision about which
262 dnl thread package to use.
263 AC_MSG_CHECKING([for threads package to use])
264 AC_ARG_ENABLE(threads, [ --enable-threads=TYPE choose threading package],
266 dnl FIXME: figure out native threads to use here.
269 if test "$THREADS" = yes; then
275 # FIXME: this isn't correct in all cases.
282 # FIXME: for now, choose POSIX, because we implement that.
283 # Later, choose irix threads.
287 # FIXME: for now, choose POSIX, because we implement that.
288 # Later, choose solaris threads.
306 AC_DEFINE(LINUX_THREADS)
310 decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
311 AC_MSG_ERROR(thread package $THREADS not yet supported)
314 AC_MSG_ERROR($THREADS is an unknown thread package)
317 AC_MSG_RESULT($THREADS)
329 THREADOBJS=posix-threads.lo
330 THREADH=posix-threads.h
331 # MIT pthreads doesn't seem to have the mutexattr functions.
332 # But for now we don't check for it. We just assume you aren't
333 # using MIT pthreads.
334 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
336 # If we're using the Boehm GC, then we happen to know that it
337 # defines _REENTRANT, so we don't bother. Eww.
338 if test "$GC" != boehm; then
339 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
341 AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1, [Required define if using POSIX threads])
345 THREADOBJS=no-threads.lo
349 AC_LINK_FILES(include/$THREADH, include/java-threads.h)
356 AM_CONDITIONAL(USING_GCC, test "$GCC" = yes)
362 # Find eh-common.h and support headers. If we're in the tree with
363 # gcc, then look there. Otherwise look in compat-include. If all else
364 # fails, just hope the user has set things up somehow.
365 if test -r $srcdir/../gcc/eh-common.h; then
366 EH_COMMON_INCLUDE='-I$(top_srcdir)/../gcc -I$(top_srcdir)/../include'
368 if test -d $srcdir/../compat-include; then
369 EH_COMMON_INCLUDE='-I$(top_srcdir)/../compat-include'
375 if test -n "${with_cross_host}"; then
376 # We are being configured with a cross compiler. AC_REPLACE_FUNCS
377 # may not work correctly, because the compiler may not be able to
380 # We assume newlib. This lets us hard-code the functions we know
382 AC_DEFINE(HAVE_MEMMOVE)
383 AC_DEFINE(HAVE_MEMCPY)
384 AC_DEFINE(HAVE_STRERROR)
385 AC_DEFINE(HAVE_GMTIME_R)
386 AC_DEFINE(HAVE_LOCALTIME_R)
387 dnl This is only for POSIX threads.
388 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
389 dnl We also assume we are using gcc, which provides alloca.
390 AC_DEFINE(HAVE_ALLOCA)
392 dnl Assume we do not have getuid and friends.
396 ZLIBTESTSPEC="-L`pwd`/../zlib/.libs -rpath `pwd`/../zlib/.libs"
398 # If Canadian cross, then don't pick up tools from the build
400 if test "$build" != "$with_cross_host"; then
403 GCJ="${target_alias}-gcj"
409 AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep)
410 AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r getcwd)
411 AC_CHECK_FUNCS(access stat mkdir rename rmdir unlink realpath iconv)
412 AC_CHECK_FUNCS(inet_aton inet_addr, break)
413 AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
414 AC_CHECK_FUNCS(backtrace fork execvp pipe)
415 AC_CHECK_HEADERS(execinfo.h unistd.h dlfcn.h)
416 AC_CHECK_LIB(dl, dladdr, [
417 AC_DEFINE(HAVE_DLADDR)])
418 AC_CHECK_FILES(/proc/self/exe, [
419 AC_DEFINE(HAVE_PROC_SELF_EXE)])
421 AC_CHECK_FUNCS(gethostbyname_r, [
422 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
423 # There are two different kinds of gethostbyname_r.
424 # We look for the one that returns `int'.
425 # Hopefully this check is robust enough.
426 AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [
427 AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT)])
430 *" -D_REENTRANT "*) ;;
432 dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT
433 AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT],
434 [libjava_cv_gethostbyname_r_needs_reentrant],
437 AC_TRY_COMPILE([#include <netdb.h>],
438 [gethostbyname_r("", 0, 0);],
439 [libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl
440 CPPFLAGS_SAVE="$CPPFLAGS"
441 CPPFLAGS="$CPPFLAGS -D_REENTRANT"
442 AC_TRY_COMPILE([#include <netdb.h>], [gethostbyname_r("", 0, 0);],
443 [libjava_cv_gethostbyname_r_needs_reentrant=yes],
444 [libjava_cv_gethostbyname_r_needs_reentrant=fail])
445 CPPFLAGS="$CPPFLAGS_SAVE"
449 if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then
450 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
455 AC_CACHE_CHECK([for struct hostent_data],
456 [libjava_cv_struct_hostent_data], [dnl
458 #if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
459 # define _REENTRANT 1
461 #include <netdb.h>], [struct hostent_data data;],
462 [libjava_cv_struct_hostent_data=yes],
463 [libjava_cv_struct_hostent_data=no])])
464 if test "x$libjava_cv_struct_hostent_data" = xyes; then
465 AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1,
466 [Define if struct hostent_data is defined in netdb.h])
470 AC_CHECK_FUNCS(gethostbyaddr_r, [
471 AC_DEFINE(HAVE_GETHOSTBYADDR_R)
472 # There are two different kinds of gethostbyaddr_r.
473 # We look for the one that returns `int'.
474 # Hopefully this check is robust enough.
475 AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [
476 AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT)])])
478 AC_CHECK_FUNCS(gethostname, [
479 AC_DEFINE(HAVE_GETHOSTNAME)
480 AC_EGREP_HEADER(gethostname, unistd.h, [
481 AC_DEFINE(HAVE_GETHOSTNAME_DECL)])])
483 # Look for these functions in the thread library, but only bother
484 # if using POSIX threads.
485 if test "$THREADS" = posix; then
487 LIBS="$LIBS $THREADLIBS"
488 # Some POSIX thread systems don't have pthread_mutexattr_settype.
490 AC_CHECK_FUNCS(pthread_mutexattr_settype pthread_mutexattr_setkind_np)
492 # Look for sched_yield. Up to Solaris 2.6, it is in libposix4, since
493 # Solaris 7 the name librt is preferred.
494 AC_CHECK_FUNCS(sched_yield, , [
495 AC_CHECK_LIB(rt, sched_yield, [
496 AC_DEFINE(HAVE_SCHED_YIELD)
497 THREADLIBS="$THREADLIBS -lrt"
498 THREADSPEC="$THREADSPEC -lrt"], [
499 AC_CHECK_LIB(posix4, sched_yield, [
500 AC_DEFINE(HAVE_SCHED_YIELD)
501 THREADLIBS="$THREADLIBS -lposix4"
502 THREADSPEC="$THREADSPEC -lposix4"])])])
505 # We can save a little space at runtime if the mutex has m_count
506 # or __m_count. This is a nice hack for Linux.
507 AC_TRY_COMPILE([#include <pthread.h>], [
508 extern pthread_mutex_t *mutex; int q = mutex->m_count;
509 ], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT), [
510 AC_TRY_COMPILE([#include <pthread.h>], [
511 extern pthread_mutex_t *mutex; int q = mutex->__m_count;
512 ], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT))])
515 # We require a way to get the time.
517 AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes)
518 if test "$time_found" = no; then
519 AC_MSG_ERROR([no function found to get the time])
522 AC_CHECK_FUNCS(memmove)
526 AC_CHECK_FUNCS(memcpy, memcpy_found=yes)
527 if test "$memcpy_found" = no; then
528 AC_MSG_ERROR([memcpy is required])
531 # Some library-finding code we stole from Tcl.
532 #--------------------------------------------------------------------
533 # Check for the existence of the -lsocket and -lnsl libraries.
534 # The order here is important, so that they end up in the right
535 # order in the command line generated by make. Here are some
536 # special considerations:
537 # 1. Use "connect" and "accept" to check for -lsocket, and
538 # "gethostbyname" to check for -lnsl.
539 # 2. Use each function name only once: can't redo a check because
540 # autoconf caches the results of the last check and won't redo it.
541 # 3. Use -lnsl and -lsocket only if they supply procedures that
542 # aren't already present in the normal libraries. This is because
543 # IRIX 5.2 has libraries, but they aren't needed and they're
544 # bogus: they goof up name resolution if used.
545 # 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
546 # To get around this problem, check for both libraries together
547 # if -lsocket doesn't work by itself.
548 #--------------------------------------------------------------------
550 AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets,
553 unset ac_cv_func_connect
554 AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1)
555 if test "$gcj_checkSocket" = 1; then
556 unset ac_cv_func_connect
557 AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket",
560 if test "$gcj_checkBoth" = 1; then
562 LIBS="$LIBS -lsocket -lnsl"
563 unset ac_cv_func_accept
564 AC_CHECK_FUNC(accept,
566 gcj_cv_lib_sockets="-lsocket -lnsl"])
567 unset ac_cv_func_accept
570 unset ac_cv_func_gethostbyname
572 LIBS="$LIBS $gcj_cv_lib_sockets"
573 AC_CHECK_FUNC(gethostbyname, ,
574 [AC_CHECK_LIB(nsl, main,
575 [gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])])
576 unset ac_cv_func_gethostbyname
579 SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets"
581 if test "$with_system_zlib" = yes; then
582 AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=-lzgcj)
585 ZLIBTESTSPEC="-L`pwd`/../zlib/.libs -rpath `pwd`/../zlib/.libs"
588 # On Solaris, and maybe other architectures, the Boehm collector
590 if test "$GC" = boehm; then
591 AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl")
594 if test -d "$libgcj_basedir/../gcc/java"; then
603 dnl FIXME: cross compilation
604 AC_CHECK_SIZEOF(void *)
609 if test "x$ZLIBSPEC" = "x-lzgcj"; then
610 # We include the path to the zlib build directory.
611 # See Makefile.am to understand why.
612 ZDEPS='$(top_builddir)/../zlib/libzgcj.la'
613 ZLIBS="$ZDEPS -L\$(here)/../zlib/$libsubdir"
614 ZINCS='-I$(top_srcdir)/../zlib'
622 AC_SUBST(EXCEPTIONSPEC)
623 AC_SUBST(FORCELIBGCCSPEC)
625 AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
626 AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
627 AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
628 AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
629 AM_CONDITIONAL(NEEDS_DATA_START, test "$NEEDS_DATA_START" = yes && test "$NATIVE" = yes)
630 AC_SUBST(EH_COMMON_INCLUDE)
632 # Determine gcj version number.
633 if test "$GCJ" = ""; then
634 if test -z "${with_multisubdir}"; then
638 builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`
641 dir="`cd ${builddotdot}/../../gcc && pwd`"
642 GCJ="$dir/gcj -B$dir/"
645 gcjvers="`$GCJ -v 2>&1 | sed -n 's/^.*version \([^ ]*\).*$/\1/p'`"
647 AC_DEFINE_UNQUOTED(GCJVERSION, "$gcjvers")
649 # See if gcj supports -fuse-divide-subroutine. gcc 2.95 does not, and
650 # we want to continue to support that version.
651 AC_MSG_CHECKING([whether gcj supports -fuse-divide-subroutine])
652 cat > conftest.java << 'END'
653 public class conftest { }
656 $GCJ -classpath $srcdir -fuse-divide-subroutine -fsyntax-only \
657 conftest.java > /dev/null 2>&1 \
660 if test "$use_fuse" = no; then
663 AC_MSG_RESULT($use_fuse)
665 AC_SUBST(AM_RUNTESTFLAGS)
667 dnl Work around a g++ bug. Reported to gcc-bugs@gcc.gnu.org on Jan 22, 2000.
668 AC_MSG_CHECKING([for g++ -ffloat-store bug])
669 save_CFLAGS="$CFLAGS"
670 CFLAGS="-x c++ -O2 -ffloat-store"
671 AC_TRY_COMPILE([#include <math.h>], ,
673 [AC_DEFINE(__NO_MATH_INLINES)
675 CFLAGS="$save_CFLAGS"
677 dnl We check for sys/filio.h because Solaris 2.5 defines FIONREAD there.
678 dnl On that system, sys/ioctl.h will not include sys/filio.h unless
679 dnl BSD_COMP is defined; just including sys/filio.h is simpler.
680 AC_CHECK_HEADERS(unistd.h bstring.h sys/time.h sys/types.h fcntl.h sys/ioctl.h sys/filio.h sys/stat.h sys/select.h sys/socket.h netinet/in.h arpa/inet.h netdb.h pwd.h sys/config.h inttypes.h stdint.h)
681 dnl We avoid AC_HEADER_DIRENT since we really only care about dirent.h
682 dnl for now. If you change this, you also must update natFile.cc.
683 AC_CHECK_HEADERS(dirent.h)
685 AC_CHECK_TYPE([ssize_t], [int])
687 AC_MSG_CHECKING([for in_addr_t])
688 AC_TRY_COMPILE([#include <sys/types.h>
693 #if HAVE_NETINET_IN_H
694 #include <netinet/in.h>
695 #endif], [in_addr_t foo;],
696 [AC_DEFINE([HAVE_IN_ADDR_T])
700 AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h])
701 AC_TRY_COMPILE([#include <netinet/in.h>], [struct ip_mreq mreq;],
702 [AC_DEFINE(HAVE_STRUCT_IP_MREQ)
706 AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h])
707 AC_TRY_COMPILE([#include <netinet/in.h>], [struct sockaddr_in6 addr6;],
708 [AC_DEFINE(HAVE_INET6)
712 AC_MSG_CHECKING([for socklen_t in sys/socket.h])
713 AC_TRY_COMPILE([#include <sys/socket.h>], [socklen_t x = 5;],
714 [AC_DEFINE(HAVE_SOCKLEN_T)
718 AC_MSG_CHECKING([for tm_gmtoff in struct tm])
719 AC_TRY_COMPILE([#include <time.h>], [struct tm tim; tim.tm_gmtoff = 0;],
720 [AC_DEFINE(STRUCT_TM_HAS_GMTOFF)
723 AC_MSG_CHECKING([for global timezone variable])
724 dnl FIXME: we don't want a link check here because that won't work
725 dnl when cross-compiling. So instead we make an assumption that
726 dnl the header file will mention timezone if it exists.
727 AC_TRY_COMPILE([#include <time.h>], [long z2 = timezone;],
728 [AC_DEFINE(HAVE_TIMEZONE)
730 [AC_MSG_RESULT(no)])])
734 AC_CHECK_PROGS(PERL, perl, false)
736 if test "$enable_sjlj_exceptions" = yes; then
737 SIGNAL_HANDLER=include/default-signal.h
741 SIGNAL_HANDLER=include/i386-signal.h
744 SIGNAL_HANDLER=include/sparc-signal.h
747 SIGNAL_HANDLER=include/default-signal.h
752 AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h)
754 if test "${multilib}" = "yes"; then
755 multilib_arg="--enable-multilib"
763 AC_OUTPUT(Makefile libgcj.spec libgcj-test.spec gcj/Makefile include/Makefile testsuite/Makefile,
764 [if test -n "$CONFIG_FILES"; then
765 ac_file=Makefile . ${libgcj_basedir}/../config-ml.in
770 with_multisubdir=${with_multisubdir}
771 ac_configure_args="${multilib_arg} ${ac_configure_args}"
772 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
773 libgcj_basedir=${libgcj_basedir}