1 dnl Process this with autoconf to create configure
2 AC_INIT(java/lang/System.java)
6 dnl We use these options to decide which functions to include.
7 AC_ARG_WITH(target-subdir,
8 [ --with-target-subdir=SUBDIR
9 configuring in a subdirectory])
10 AC_ARG_WITH(cross-host,
11 [ --with-cross-host=HOST configuring with a cross compiler])
15 AM_CONFIG_HEADER(include/config.h gcj/libgcj-config.h)
17 # Only use libltdl for native builds.
18 if test -z "${with_cross_host}"; then
19 AC_LIBLTDL_CONVENIENCE
23 # Sigh. Libtool's macro doesn't do the right thing.
24 INCLTDL="-I\$(top_srcdir)/libltdl $INCLTDL"
25 # FIXME: this is a hack.
26 sub_auxdir="`cd $ac_aux_dir && pwd`"
27 ac_configure_args="$ac_configure_args --with-auxdir=$sub_auxdir"
33 AC_CONFIG_SUBDIRS($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 $srcdir/testsuite)
45 dnl Should the runtime set system properties by examining the
46 dnl environment variable GCJ_PROPERTIES?
47 AC_ARG_ENABLE(getenv-properties,
48 [ --disable-getenv-properties
49 don't set system properties from GCJ_PROPERTIES])
51 dnl Whether GCJ_PROPERTIES is used depends on the target.
52 if test -z "$enable_getenv_properties"; then
53 enable_getenv_properties=${enable_getenv_properties_default-yes}
55 if test "$enable_getenv_properties" = no; then
56 AC_DEFINE(DISABLE_GETENV_PROPERTIES)
59 dnl Whether we should use arguments to main()
60 if test -z "$enable_main_args"; then
61 enable_main_args=${enable_main_args_default-yes}
63 if test "$enable_main_args" = no; then
64 AC_DEFINE(DISABLE_MAIN_ARGS)
68 dnl Should we use hashtable-based synchronization?
69 dnl Currently works only for Linux X86/ia64
70 dnl Typically faster and more space-efficient
71 AC_ARG_ENABLE(hash-synchronization,
72 [ --enable-hash-synchronization
73 Use global hash table for monitor locks])
75 if test -z "$enable_hash_synchronization"; then
76 enable_hash_synchronization=$enable_hash_synchronization_default
80 dnl See if the user has requested runtime debugging.
83 AC_ARG_ENABLE(libgcj-debug,
84 [ --enable-libgcj-debug enable runtime debugging code],
85 if test "$enable_libgcj_debug" = yes; then
90 dnl See if the user has the interpreter included.
91 AC_ARG_ENABLE(interpreter,
92 [ --enable-interpreter enable interpreter],
93 if test "$enable_interpreter" = yes; then
94 # This can also be set in configure.host.
95 libgcj_interpreter=yes
96 elif test "$enable_interpreter" = no; then
100 if test "$libgcj_interpreter" = yes; then
101 AC_DEFINE(INTERPRETER)
104 AC_MSG_CHECKING([for exception model to use])
107 AC_ARG_ENABLE(sjlj-exceptions,
108 [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
110 [dnl Botheration. Now we've got to detect the exception model.
111 dnl Link tests against libgcc.a are problematic since -- at least
112 dnl as of this writing -- we've not been given proper -L bits for
113 dnl single-tree newlib and libgloss.
115 dnl This is what AC_TRY_COMPILE would do if it didn't delete the
116 dnl conftest files before we got a change to grep them first.
117 cat > conftest.$ac_ext << EOF
118 [#]line __oline__ "configure"
127 old_CXXFLAGS="$CXXFLAGS"
129 if AC_TRY_EVAL(ac_compile); then
130 if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
131 enable_sjlj_exceptions=yes
132 elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
133 enable_sjlj_exceptions=no
136 CXXFLAGS="$old_CXXFLAGS"
138 if test x$enable_sjlj_exceptions = xyes; then
139 AC_DEFINE(SJLJ_EXCEPTIONS, 1,
140 [Define if the compiler is configured for setjmp/longjmp exceptions.])
141 ac_exception_model_name=sjlj
142 elif test x$enable_sjlj_exceptions = xno; then
143 ac_exception_model_name="call frame"
145 AC_MSG_ERROR([unable to detect exception model])
148 AC_MSG_RESULT($ac_exception_model_name)
150 dnl See if the user wants to disable java.net. This is the mildly
151 dnl ugly way that we admit that target-side configuration sucks.
152 AC_ARG_ENABLE(java-net,
153 [ --disable-java-net disable java.net])
155 dnl Whether java.net is built by default can depend on the target.
156 if test -z "$enable_java_net"; then
157 enable_java_net=${enable_java_net_default-yes}
159 if test "$enable_java_net" = no; then
160 AC_DEFINE(DISABLE_JAVA_NET)
163 dnl See if the user wants to configure without libffi. Some
164 dnl architectures don't support it, and default values are set in
167 [ --without-libffi don't use libffi],,with_libffi=${with_libffi_default-yes})
171 if test "$with_libffi" != no; then
172 AC_DEFINE(USE_LIBFFI)
173 LIBFFI=../libffi/libfficonvenience.la
174 LIBFFIINCS='-I$(top_srcdir)/../libffi/include -I$(MULTIBUILDTOP)../libffi/include'
179 dnl See if the user wants to disable JVMPI support.
181 [ --disable-jvmpi disable JVMPI support])
183 if test "$enable_jvmpi" != no; then
184 AC_DEFINE(ENABLE_JVMPI)
187 dnl If the target is an eCos system, use the appropriate eCos
189 dnl FIXME: this should not be a local option but a global target
190 dnl system; at present there is no eCos target.
191 TARGET_ECOS=${PROCESS-"no"}
193 [ --with-ecos enable runtime eCos target support],
194 TARGET_ECOS="$with_ecos"
198 case "$TARGET_ECOS" in
202 PLATFORMOBJS=win32.lo
207 PLATFORMOBJS=posix.lo
215 PLATFORMOBJS=posix.lo
219 AC_SUBST(PLATFORMOBJS)
220 AC_LINK_FILES(include/$PLATFORMH, include/platform.h)
222 AC_EGREP_HEADER(uint32_t, stdint.h, AC_DEFINE(HAVE_INT32_DEFINED))
223 AC_EGREP_HEADER(uint32_t, inttypes.h, AC_DEFINE(HAVE_INT32_DEFINED))
224 AC_EGREP_HEADER(u_int32_t, sys/types.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
225 AC_EGREP_HEADER(u_int32_t, sys/config.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
228 dnl These may not be defined in a non-ANS conformant embedded system.
229 dnl FIXME: Should these case a runtime exception in that case?
230 AC_EGREP_HEADER(mktime, time.h, AC_DEFINE(HAVE_MKTIME))
231 AC_EGREP_HEADER(localtime, time.h, AC_DEFINE(HAVE_LOCALTIME))
233 dnl Create the subdirectory for natFileDescriptor.cc, or the attempt
234 dnl to create the link will fail.
235 test -d java || mkdir java
236 test -d java/io || mkdir java/io
237 test -d gnu || mkdir gnu
238 AC_LINK_FILES(java/io/natFile${PLATFORM}.cc, java/io/natFile.cc)
239 AC_LINK_FILES(java/io/natFileDescriptor${PLATFORM}.cc, java/io/natFileDescriptor.cc)
241 dnl Likewise for ConcreteProcess.java and natConcreteProcess.cc.
242 test -d java/lang || mkdir java/lang
243 AC_LINK_FILES(java/lang/${PLATFORM}Process.java, java/lang/ConcreteProcess.java)
244 AC_LINK_FILES(java/lang/nat${PLATFORM}Process.cc, java/lang/natConcreteProcess.cc)
248 SYSTEMSPEC="-lgdi32 -lwsock32 -lws2_32"
256 LIBGCJTESTSPEC="-L`pwd`/.libs -rpath `pwd`/.libs"
257 AC_SUBST(LIBGCJTESTSPEC)
259 AC_ARG_WITH(system-zlib,
260 [ --with-system-zlib use installed libz])
264 AC_SUBST(ZLIBTESTSPEC)
266 dnl FIXME: this should be _libs on some hosts.
269 dnl Allow the GC to be disabled. Can be useful when debugging.
270 AC_MSG_CHECKING([for garbage collector to use])
271 AC_ARG_ENABLE(java-gc,
272 changequote(<<,>>)dnl
273 << --enable-java-gc=TYPE choose garbage collector [boehm]>>,
287 GCDEPS='$(top_builddir)/../boehm-gc/libgcjgc.la'
288 # We include the path to the boehm-gc build directory.
289 # See Makefile.am to understand why.
290 GCLIBS="$GCDEPS -L\$(here)/../boehm-gc/$libsubdir"
291 GCINCS='-I$(top_srcdir)/../boehm-gc/include'
293 JC1GCSPEC='-fuse-boehm-gc'
294 GCTESTSPEC="-L`pwd`/../boehm-gc/.libs -rpath `pwd`/../boehm-gc/.libs"
295 dnl We also want to pick up some cpp flags required when including
296 dnl boehm-config.h. Yuck.
297 GCINCS="$GCINCS `cat ../boehm-gc/boehm-cflags`"
300 dnl The POSIX thread support needs to know this.
301 AC_DEFINE(HAVE_BOEHM_GC)
309 AC_MSG_ERROR(unrecognized collector \"$GC\")
319 AC_LINK_FILES(include/$GCHDR, include/java-gc.h)
322 AC_MSG_CHECKING([for thread model used by GCC])
323 THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
324 AC_MSG_RESULT([$THREADS])
334 AC_DEFINE(LINUX_THREADS)
340 decosf1 | irix | mach | os2 | solaris | dce | vxworks)
341 AC_MSG_ERROR(thread package $THREADS not yet supported)
344 AC_MSG_ERROR($THREADS is an unknown thread package)
358 # Don't set THREADLIBS here. Cygwin doesn't have -lpthread.
363 # Before FreeBSD 5, it didn't have -lpthread (or any library which
364 # merely adds pthread_* functions) but it does have a -pthread switch
365 # which is required at link-time to select -lc_r *instead* of -lc.
367 # Don't set THREADSPEC here as might be expected since -pthread is
368 # not processed when found within a spec file, it must come from
369 # the command line. For now, the user must provide the -pthread
370 # switch to link code compiled with gcj. In future, consider adding
371 # support for weak references to pthread_* functions ala gthr.h API.
372 THREADSPEC='%{!pthread: %eUnder this configuration, the user must provide -pthread when linking.}'
375 # FreeBSD 5 implements a model much closer to other modern UNIX
376 # which support threads. However, it still does not support
386 THREADOBJS=posix-threads.lo
387 THREADH=posix-threads.h
388 # MIT pthreads doesn't seem to have the mutexattr functions.
389 # But for now we don't check for it. We just assume you aren't
390 # using MIT pthreads.
391 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
393 # If we're using the Boehm GC, then we happen to know that it
394 # defines _REENTRANT, so we don't bother. Eww.
395 if test "$GC" != boehm; then
396 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
398 AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1, [Required define if using POSIX threads])
402 THREADOBJS=win32-threads.lo
403 THREADH=win32-threads.h
407 THREADOBJS=no-threads.lo
411 AC_LINK_FILES(include/$THREADH, include/java-threads.h)
419 # Hash synchronization is only useful with posix threads right now.
420 if test "$enable_hash_synchronization" = yes && test "$THREADS" = "posix"; then
421 HASH_SYNC_SPEC=-fhash-synchronization
422 AC_DEFINE(JV_HASH_SYNCHRONIZATION, 1, [Define if hash synchronization is in use])
424 AC_SUBST(HASH_SYNC_SPEC)
427 AM_CONDITIONAL(USING_GCC, test "$GCC" = yes)
433 # We're in the tree with gcc, and need to include some of its headers.
434 GCC_UNWIND_INCLUDE='-I$(libgcj_basedir)/../gcc'
436 if test -n "${with_cross_host}"; then
437 # We are being configured with a cross compiler. AC_REPLACE_FUNCS
438 # may not work correctly, because the compiler may not be able to
441 # We assume newlib. This lets us hard-code the functions we know
443 AC_DEFINE(HAVE_MEMMOVE)
444 AC_DEFINE(HAVE_MEMCPY)
445 AC_DEFINE(HAVE_STRERROR)
446 AC_DEFINE(HAVE_GMTIME_R)
447 AC_DEFINE(HAVE_LOCALTIME_R)
448 dnl This is only for POSIX threads.
449 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
450 dnl We also assume we are using gcc, which provides alloca.
451 AC_DEFINE(HAVE_ALLOCA)
453 dnl Assume we do not have getuid and friends.
457 ZLIBTESTSPEC="-L`pwd`/../zlib/.libs -rpath `pwd`/../zlib/.libs"
459 # If Canadian cross, then don't pick up tools from the build
461 if test x"$build" != x"$with_cross_host" && x"$build" != x"$target"; then
464 GCJ="${target_alias}-gcj"
468 AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep opendir)
469 AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r getcwd)
470 AC_CHECK_FUNCS(access stat mkdir rename rmdir unlink realpath utime chmod)
471 AC_CHECK_FUNCS(nl_langinfo setlocale)
472 AC_CHECK_FUNCS(inet_aton inet_addr, break)
473 AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
474 AC_CHECK_FUNCS(backtrace fork execvp pipe sigaction)
475 AC_CHECK_HEADERS(execinfo.h unistd.h dlfcn.h)
476 AC_CHECK_LIB(dl, dladdr, [
477 AC_DEFINE(HAVE_DLADDR)])
478 AC_CHECK_FILES(/proc/self/exe, [
479 AC_DEFINE(HAVE_PROC_SELF_EXE)])
485 AC_CHECK_FUNCS(gethostbyname_r, [
486 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
487 # There are two different kinds of gethostbyname_r.
488 # We look for the one that returns `int'.
489 # Hopefully this check is robust enough.
490 AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [
491 AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT)])
494 *" -D_REENTRANT "*) ;;
496 dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT
497 AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT],
498 [libjava_cv_gethostbyname_r_needs_reentrant],
501 AC_TRY_COMPILE([#include <netdb.h>],
502 [gethostbyname_r("", 0, 0);],
503 [libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl
504 CPPFLAGS_SAVE="$CPPFLAGS"
505 CPPFLAGS="$CPPFLAGS -D_REENTRANT"
506 AC_TRY_COMPILE([#include <netdb.h>], [gethostbyname_r("", 0, 0);],
507 [libjava_cv_gethostbyname_r_needs_reentrant=yes],
508 [libjava_cv_gethostbyname_r_needs_reentrant=fail])
509 CPPFLAGS="$CPPFLAGS_SAVE"
513 if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then
514 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
519 AC_CACHE_CHECK([for struct hostent_data],
520 [libjava_cv_struct_hostent_data], [dnl
522 #if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
523 # define _REENTRANT 1
525 #include <netdb.h>], [struct hostent_data data;],
526 [libjava_cv_struct_hostent_data=yes],
527 [libjava_cv_struct_hostent_data=no])])
528 if test "x$libjava_cv_struct_hostent_data" = xyes; then
529 AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1,
530 [Define if struct hostent_data is defined in netdb.h])
534 # FIXME: libjava source code expects to find a prototype for
535 # gethostbyaddr_r in netdb.h. The outer check ensures that
536 # HAVE_GETHOSTBYADDR_R will not be defined if the prototype fails
537 # to exist where expected. (The root issue: AC_CHECK_FUNCS assumes C
538 # linkage check is enough, yet C++ code requires proper prototypes.)
539 AC_EGREP_HEADER(gethostbyaddr_r, netdb.h, [
540 AC_CHECK_FUNCS(gethostbyaddr_r, [
541 AC_DEFINE(HAVE_GETHOSTBYADDR_R)
542 # There are two different kinds of gethostbyaddr_r.
543 # We look for the one that returns `int'.
544 # Hopefully this check is robust enough.
545 AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [
546 AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT)])])])
548 AC_CHECK_FUNCS(gethostname, [
549 AC_DEFINE(HAVE_GETHOSTNAME)
550 AC_EGREP_HEADER(gethostname, unistd.h, [
551 AC_DEFINE(HAVE_GETHOSTNAME_DECL)])])
553 # Look for these functions in the thread library, but only bother
554 # if using POSIX threads.
555 if test "$THREADS" = posix; then
557 LIBS="$LIBS $THREADLIBS"
558 # Some POSIX thread systems don't have pthread_mutexattr_settype.
560 AC_CHECK_FUNCS(pthread_mutexattr_settype pthread_mutexattr_setkind_np)
562 # Look for sched_yield. Up to Solaris 2.6, it is in libposix4, since
563 # Solaris 7 the name librt is preferred.
564 AC_CHECK_FUNCS(sched_yield, , [
565 AC_CHECK_LIB(rt, sched_yield, [
566 AC_DEFINE(HAVE_SCHED_YIELD)
567 THREADLIBS="$THREADLIBS -lrt"
568 THREADSPEC="$THREADSPEC -lrt"], [
569 AC_CHECK_LIB(posix4, sched_yield, [
570 AC_DEFINE(HAVE_SCHED_YIELD)
571 THREADLIBS="$THREADLIBS -lposix4"
572 THREADSPEC="$THREADSPEC -lposix4"])])])
575 # We can save a little space at runtime if the mutex has m_count
576 # or __m_count. This is a nice hack for Linux.
577 AC_TRY_COMPILE([#include <pthread.h>], [
578 extern pthread_mutex_t *mutex; int q = mutex->m_count;
579 ], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT), [
580 AC_TRY_COMPILE([#include <pthread.h>], [
581 extern pthread_mutex_t *mutex; int q = mutex->__m_count;
582 ], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT))])
585 # We require a way to get the time.
587 AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes)
588 if test "$time_found" = no; then
589 AC_MSG_ERROR([no function found to get the time])
592 AC_CHECK_FUNCS(memmove)
596 AC_CHECK_FUNCS(memcpy, memcpy_found=yes)
597 if test "$memcpy_found" = no; then
598 AC_MSG_ERROR([memcpy is required])
601 AC_CHECK_LIB(dl, dlopen, [
602 AC_DEFINE(HAVE_DLOPEN, 1, [Define if dlopen is available])])
604 # Some library-finding code we stole from Tcl.
605 #--------------------------------------------------------------------
606 # Check for the existence of the -lsocket and -lnsl libraries.
607 # The order here is important, so that they end up in the right
608 # order in the command line generated by make. Here are some
609 # special considerations:
610 # 1. Use "connect" and "accept" to check for -lsocket, and
611 # "gethostbyname" to check for -lnsl.
612 # 2. Use each function name only once: can't redo a check because
613 # autoconf caches the results of the last check and won't redo it.
614 # 3. Use -lnsl and -lsocket only if they supply procedures that
615 # aren't already present in the normal libraries. This is because
616 # IRIX 5.2 has libraries, but they aren't needed and they're
617 # bogus: they goof up name resolution if used.
618 # 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
619 # To get around this problem, check for both libraries together
620 # if -lsocket doesn't work by itself.
621 #--------------------------------------------------------------------
623 AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets,
626 unset ac_cv_func_connect
627 AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1)
628 if test "$gcj_checkSocket" = 1; then
629 unset ac_cv_func_connect
630 AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket",
633 if test "$gcj_checkBoth" = 1; then
635 LIBS="$LIBS -lsocket -lnsl"
636 unset ac_cv_func_accept
637 AC_CHECK_FUNC(accept,
639 gcj_cv_lib_sockets="-lsocket -lnsl"])
640 unset ac_cv_func_accept
643 unset ac_cv_func_gethostbyname
645 LIBS="$LIBS $gcj_cv_lib_sockets"
646 AC_CHECK_FUNC(gethostbyname, ,
647 [AC_CHECK_LIB(nsl, main,
648 [gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])])
649 unset ac_cv_func_gethostbyname
652 SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets"
654 if test "$with_system_zlib" = yes; then
655 AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=-lzgcj)
658 ZLIBTESTSPEC="-L`pwd`/../zlib/.libs -rpath `pwd`/../zlib/.libs"
661 # On Solaris, and maybe other architectures, the Boehm collector
663 if test "$GC" = boehm; then
664 AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl")
667 if test -z "${with_multisubdir}"; then
671 builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`
674 if test -x "${builddotdot}/../../gcc/gcj"; then
675 dir="`cd ${builddotdot}/../../gcc && pwd`"
676 GCJ="$dir/gcj -B`pwd`/ -B$dir/"
684 # Create it, so that compile/link tests don't fail
685 test -f libgcj.spec || touch libgcj.spec
687 # We must search the source tree for java.lang, since we still don't
688 # have libgcj.jar nor java/lang/*.class
689 GCJ_SAVE_CPPFLAGS=$CPPFLAGS
690 CPPFLAGS="$CPPFLAGS -I`pwd` -I`cd $srcdir && pwd`"
692 # Since some classes depend on this one, we need its source available
693 # before we can do any GCJ compilation test :-(
694 if test ! -f gnu/classpath/Configuration.java; then
695 test -d gnu || mkdir gnu
696 test -d gnu/classpath || mkdir gnu/classpath
697 sed 's,@LIBGCJDEBUG@,$LIBGCJDEBUG,' \
698 < $srcdir/gnu/classpath/Configuration.java.in \
699 > gnu/classpath/Configuration.java
700 # We do not want to redirect the output of the grep below to /dev/null,
701 # but we add /dev/null to the input list so that grep will print the
702 # filename of Configuration.java in case it finds any matches.
703 if grep @ gnu/classpath/Configuration.java /dev/null; then
704 AC_MSG_ERROR([configure.in is missing the substitutions above])
710 CPPFLAGS=$GCJ_SAVE_CPPFLAGS
712 AC_COMPILE_CHECK_SIZEOF(void *)
717 if test "x$ZLIBSPEC" = "x-lzgcj"; then
718 # We include the path to the zlib build directory.
719 # See Makefile.am to understand why.
720 ZDEPS='$(top_builddir)/../zlib/libzgcj.la'
721 ZLIBS="$ZDEPS -L\$(here)/../zlib/$libsubdir"
722 ZINCS='-I$(top_srcdir)/../zlib'
730 AC_SUBST(EXCEPTIONSPEC)
732 AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
733 AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
734 AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
735 AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
736 AM_CONDITIONAL(NEEDS_DATA_START, test "$NEEDS_DATA_START" = yes && test "$NATIVE" = yes)
737 AC_SUBST(GCC_UNWIND_INCLUDE)
739 AC_SUBST(AM_RUNTESTFLAGS)
741 dnl Work around a g++ bug. Reported to gcc-bugs@gcc.gnu.org on Jan 22, 2000.
742 AC_MSG_CHECKING([for g++ -ffloat-store bug])
743 save_CFLAGS="$CFLAGS"
744 CFLAGS="-x c++ -O2 -ffloat-store"
745 AC_TRY_COMPILE([#include <math.h>], ,
747 [AC_DEFINE(__NO_MATH_INLINES)
749 CFLAGS="$save_CFLAGS"
751 dnl We check for sys/filio.h because Solaris 2.5 defines FIONREAD there.
752 dnl On that system, sys/ioctl.h will not include sys/filio.h unless
753 dnl BSD_COMP is defined; just including sys/filio.h is simpler.
754 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 stdint.h langinfo.h locale.h)
755 dnl We avoid AC_HEADER_DIRENT since we really only care about dirent.h
756 dnl for now. If you change this, you also must update natFile.cc.
757 AC_CHECK_HEADERS(dirent.h)
758 AC_CHECK_HEADERS(inttypes.h, [
759 AC_DEFINE(HAVE_INTTYPES_H, 1, [Define if <inttypes.h> is available])
760 AC_DEFINE(JV_HAVE_INTTYPES_H, 1, [Define if <inttypes.h> is available])
764 AC_CHECK_TYPE([ssize_t], [int])
766 AC_MSG_CHECKING([for in_addr_t])
767 AC_TRY_COMPILE([#include <sys/types.h>
772 #if HAVE_NETINET_IN_H
773 #include <netinet/in.h>
774 #endif], [in_addr_t foo;],
775 [AC_DEFINE([HAVE_IN_ADDR_T])
779 AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h])
780 AC_TRY_COMPILE([#include <netinet/in.h>], [struct ip_mreq mreq;],
781 [AC_DEFINE(HAVE_STRUCT_IP_MREQ)
785 AC_MSG_CHECKING([whether struct ipv6_mreq is in netinet/in.h])
786 AC_TRY_COMPILE([#include <netinet/in.h>], [struct ipv6_mreq mreq6;],
787 [AC_DEFINE(HAVE_STRUCT_IPV6_MREQ)
791 AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h])
792 AC_TRY_COMPILE([#include <netinet/in.h>], [struct sockaddr_in6 addr6;],
793 [AC_DEFINE(HAVE_INET6)
797 AC_MSG_CHECKING([for socklen_t in sys/socket.h])
798 AC_TRY_COMPILE([#define _POSIX_PII_SOCKET
799 #include <sys/types.h>
800 #include <sys/socket.h>], [socklen_t x = 5;],
801 [AC_DEFINE(HAVE_SOCKLEN_T)
805 AC_MSG_CHECKING([for tm_gmtoff in struct tm])
806 AC_TRY_COMPILE([#include <time.h>], [struct tm tim; tim.tm_gmtoff = 0;],
807 [AC_DEFINE(STRUCT_TM_HAS_GMTOFF)
810 AC_MSG_CHECKING([for global timezone variable])
811 dnl FIXME: we don't want a link check here because that won't work
812 dnl when cross-compiling. So instead we make an assumption that
813 dnl the header file will mention timezone if it exists.
814 AC_TRY_COMPILE([#include <time.h>], [long z2 = timezone;],
815 [AC_DEFINE(HAVE_TIMEZONE)
817 [AC_MSG_RESULT(no)])])
821 AC_CHECK_PROGS(PERL, perl, false)
827 SIGNAL_HANDLER=include/i386-signal.h
830 SIGNAL_HANDLER=include/sparc-signal.h
833 # SYSDEP_SOURCES=sysdep/ia64.c
834 # test -d sysdep || mkdir sysdep
837 SIGNAL_HANDLER=include/dwarf2-signal.h
840 SIGNAL_HANDLER=include/dwarf2-signal.h
843 SIGNAL_HANDLER=include/win32-signal.h
846 SIGNAL_HANDLER=include/default-signal.h
850 # If we're using sjlj exceptions, forget what we just learned.
851 if test "$enable_sjlj_exceptions" = yes; then
852 SIGNAL_HANDLER=include/default-signal.h
855 AC_SUBST(SYSDEP_SOURCES)
857 AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h)
859 if test "${multilib}" = "yes"; then
860 multilib_arg="--enable-multilib"
867 dnl Determine which AWT peer libraries to build
868 AC_ARG_ENABLE(java-awt,
869 [ --enable-java-awt list of AWT peer implementations to be built])
871 peerlibs="`echo ${enable_java_awt} | tr ',' ' '`"
875 for peer in $peerlibs ; do
878 if [test "$no_x" = yes]; then
879 echo "*** xlib peers requested but no X library available" 1>&2
894 echo "*** unrecognised argument \"${peer}\" for --enable-java-awt" 1>&2
899 AM_CONDITIONAL(XLIB_AWT, test "$use_xlib_awt" = yes)
900 AM_CONDITIONAL(GTK_AWT, test "$use_gtk_awt" = yes)
906 # We get this from the environment.
909 AC_OUTPUT(Makefile libgcj.spec libgcj-test.spec gnu/classpath/Configuration.java gcj/Makefile include/Makefile testsuite/Makefile,
910 [# Only add multilib support code if we just rebuilt top-level Makefile.
911 case " $CONFIG_FILES " in
913 ac_file=Makefile . ${libgcj_basedir}/../config-ml.in
917 # Make subdirectories and `.d' files. Look in both srcdir and
918 # builddir for the .java files.
921 ( (cd $srcdir && find . \( -name '*.java' -o -name '*.cc' \) -print) ;
922 find . \( -name '*.java' -o -name '*.cc' \) -print) | \
923 fgrep -v testsuite | \
924 sed -e 's/\.java/.d/'\;'s/\.cc/.d/' | \
926 echo "include $f" >> deps.mk
929 d=`echo $f | sed -e 's,/[^/]*$,,'`
931 if test ! -d $d; then
932 $libgcj_basedir/../mkinstalldirs $d
941 with_multisubdir=${with_multisubdir}
942 ac_configure_args="${multilib_arg} ${ac_configure_args}"
943 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
944 libgcj_basedir=${libgcj_basedir}