1 dnl Process this with autoconf to create configure
2 AC_INIT(java/lang/System.java)
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
8 ORIGINAL_LD_FOR_MULTILIBS=$LD
12 dnl We use these options to decide which functions to include.
13 AC_ARG_WITH(target-subdir,
14 [ --with-target-subdir=SUBDIR
15 configuring in a subdirectory])
16 AC_ARG_WITH(cross-host,
17 [ --with-cross-host=HOST configuring with a cross compiler])
20 [ --with-newlib Configuring with newlib])
24 AM_CONFIG_HEADER(include/config.h gcj/libgcj-config.h)
26 # Only use libltdl for non-newlib builds.
27 if test "x${with_newlib}" = "x" || test "x${with_newlib}" = "xno"; then
28 AC_LIBLTDL_CONVENIENCE
32 # Sigh. Libtool's macro doesn't do the right thing.
33 INCLTDL="-I\$(top_srcdir)/libltdl $INCLTDL"
34 # FIXME: this is a hack.
35 sub_auxdir="`cd $ac_aux_dir && ${PWDCMD-pwd}`"
36 ac_configure_args="$ac_configure_args --with-auxdir=$sub_auxdir"
42 AC_CONFIG_SUBDIRS($DIRLTDL)
44 if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
51 dnl The -no-testsuite modules omit the test subdir.
52 AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
54 dnl Should the runtime set system properties by examining the
55 dnl environment variable GCJ_PROPERTIES?
56 AC_ARG_ENABLE(getenv-properties,
57 [ --disable-getenv-properties
58 don't set system properties from GCJ_PROPERTIES])
60 dnl Whether GCJ_PROPERTIES is used depends on the target.
61 if test -z "$enable_getenv_properties"; then
62 enable_getenv_properties=${enable_getenv_properties_default-yes}
64 if test "$enable_getenv_properties" = no; then
65 AC_DEFINE(DISABLE_GETENV_PROPERTIES)
68 dnl Whether we should use arguments to main()
69 if test -z "$enable_main_args"; then
70 enable_main_args=${enable_main_args_default-yes}
72 if test "$enable_main_args" = no; then
73 AC_DEFINE(DISABLE_MAIN_ARGS)
77 dnl Should we use hashtable-based synchronization?
78 dnl Currently works only for Linux X86/ia64
79 dnl Typically faster and more space-efficient
80 AC_ARG_ENABLE(hash-synchronization,
81 [ --enable-hash-synchronization
82 Use global hash table for monitor locks])
84 if test -z "$enable_hash_synchronization"; then
85 enable_hash_synchronization=$enable_hash_synchronization_default
88 dnl configure.host sets slow_pthread_self if the synchronization code should
89 dnl try to avoid pthread_self calls by caching thread IDs in a hashtable.
90 if test "${slow_pthread_self}" = "yes"; then
91 AC_DEFINE(SLOW_PTHREAD_SELF)
95 dnl See if the user has requested runtime debugging.
98 AC_ARG_ENABLE(libgcj-debug,
99 [ --enable-libgcj-debug enable runtime debugging code],
100 if test "$enable_libgcj_debug" = yes; then
105 dnl See if the user has the interpreter included.
106 AC_ARG_ENABLE(interpreter,
107 [ --enable-interpreter enable interpreter],
108 if test "$enable_interpreter" = yes; then
109 # This can also be set in configure.host.
110 libgcj_interpreter=yes
111 elif test "$enable_interpreter" = no; then
112 libgcj_interpreter=no
115 if test "$libgcj_interpreter" = yes; then
116 AC_DEFINE(INTERPRETER)
118 INTERPRETER="$libgcj_interpreter"
119 AC_SUBST(INTERPRETER)
121 AC_MSG_CHECKING([for exception model to use])
124 AC_ARG_ENABLE(sjlj-exceptions,
125 [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
127 [dnl Botheration. Now we've got to detect the exception model.
128 dnl Link tests against libgcc.a are problematic since -- at least
129 dnl as of this writing -- we've not been given proper -L bits for
130 dnl single-tree newlib and libgloss.
132 dnl This is what AC_TRY_COMPILE would do if it didn't delete the
133 dnl conftest files before we got a change to grep them first.
134 cat > conftest.$ac_ext << EOF
135 [#]line __oline__ "configure"
144 old_CXXFLAGS="$CXXFLAGS"
146 if AC_TRY_EVAL(ac_compile); then
147 if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
148 enable_sjlj_exceptions=yes
149 elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
150 enable_sjlj_exceptions=no
153 CXXFLAGS="$old_CXXFLAGS"
155 if test x$enable_sjlj_exceptions = xyes; then
156 AC_DEFINE(SJLJ_EXCEPTIONS, 1,
157 [Define if the compiler is configured for setjmp/longjmp exceptions.])
158 ac_exception_model_name=sjlj
159 elif test x$enable_sjlj_exceptions = xno; then
160 ac_exception_model_name="call frame"
162 AC_MSG_ERROR([unable to detect exception model])
165 AC_MSG_RESULT($ac_exception_model_name)
167 # If we are non using SJLJ exceptions, and this host does not have support
168 # for unwinding from a signal handler, enable checked dereferences and divides.
169 if test $can_unwind_signal = no && test $enable_sjlj_exceptions = no; then
170 CHECKREFSPEC=-fcheck-references
171 DIVIDESPEC=-fuse-divide-subroutine
175 dnl See if the user wants to disable java.net. This is the mildly
176 dnl ugly way that we admit that target-side configuration sucks.
177 AC_ARG_ENABLE(java-net,
178 [ --disable-java-net disable java.net])
180 dnl Whether java.net is built by default can depend on the target.
181 if test -z "$enable_java_net"; then
182 enable_java_net=${enable_java_net_default-yes}
184 if test "$enable_java_net" = no; then
185 AC_DEFINE(DISABLE_JAVA_NET)
188 dnl See if the user wants to configure without libffi. Some
189 dnl architectures don't support it, and default values are set in
192 [ --without-libffi don't use libffi],,with_libffi=${with_libffi_default-yes})
196 if test "$with_libffi" != no; then
197 AC_DEFINE(USE_LIBFFI)
198 LIBFFI=../libffi/libffi_convenience.la
199 LIBFFIINCS='-I$(top_srcdir)/../libffi/include -I../libffi/include'
204 dnl See if the user wants to disable JVMPI support.
206 [ --disable-jvmpi disable JVMPI support])
208 if test "$enable_jvmpi" != no; then
209 AC_DEFINE(ENABLE_JVMPI)
212 dnl If the target is an eCos system, use the appropriate eCos
214 dnl FIXME: this should not be a local option but a global target
215 dnl system; at present there is no eCos target.
216 TARGET_ECOS=${PROCESS-"no"}
218 [ --with-ecos enable runtime eCos target support],
219 TARGET_ECOS="$with_ecos"
223 case "$TARGET_ECOS" in
228 PLATFORMOBJS=win32.lo
230 CHECK_FOR_BROKEN_MINGW_LD
235 PLATFORMOBJS=posix.lo
244 PLATFORMOBJS=posix.lo
248 AC_SUBST(PLATFORMOBJS)
249 AC_LINK_FILES(include/$PLATFORMH, include/platform.h)
251 AC_EGREP_HEADER(uint32_t, stdint.h, AC_DEFINE(HAVE_INT32_DEFINED))
252 AC_EGREP_HEADER(uint32_t, inttypes.h, AC_DEFINE(HAVE_INT32_DEFINED))
253 AC_EGREP_HEADER(u_int32_t, sys/types.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
254 AC_EGREP_HEADER(u_int32_t, sys/config.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
257 dnl These may not be defined in a non-ANS conformant embedded system.
258 dnl FIXME: Should these case a runtime exception in that case?
259 AC_EGREP_HEADER(mktime, time.h, AC_DEFINE(HAVE_MKTIME))
260 AC_EGREP_HEADER(localtime, time.h, AC_DEFINE(HAVE_LOCALTIME))
262 dnl Create the subdirectory for natFileDescriptor.cc, or the attempt
263 dnl to create the link will fail.
264 test -d java || mkdir java
265 test -d java/io || mkdir java/io
266 test -d gnu || mkdir gnu
267 AC_LINK_FILES(java/io/natFile${FILE-${PLATFORM}}.cc, java/io/natFile.cc)
268 AC_LINK_FILES(java/io/natFileDescriptor${FILE-${PLATFORM}}.cc, java/io/natFileDescriptor.cc)
270 dnl Likewise for ConcreteProcess.java and natConcreteProcess.cc.
271 test -d java/lang || mkdir java/lang
272 AC_LINK_FILES(java/lang/${PLATFORM}Process.java, java/lang/ConcreteProcess.java)
273 AC_LINK_FILES(java/lang/nat${PLATFORM}Process.cc, java/lang/natConcreteProcess.cc)
275 dnl Likewise for natInetAddress.cc, natNetworkInterface.cc, natPlainSocketImpl.cc
276 dnl and natPlainDatagramSocketImpl.cc
277 test -d java/net || mkdir java/net
278 AC_LINK_FILES(java/net/natInetAddress${PLATFORMNET}.cc, java/net/natInetAddress.cc)
279 AC_LINK_FILES(java/net/natNetworkInterface${PLATFORMNET}.cc, java/net/natNetworkInterface.cc)
280 AC_LINK_FILES(java/net/natPlainSocketImpl${PLATFORMNET}.cc, java/net/natPlainSocketImpl.cc)
281 AC_LINK_FILES(java/net/natPlainDatagramSocketImpl${PLATFORMNET}.cc, java/net/natPlainDatagramSocketImpl.cc)
285 SYSTEMSPEC="-lgdi32 -lwsock32 -lws2_32"
293 LIBGCJTESTSPEC="-L`${PWDCMD-pwd}`/.libs -rpath `${PWDCMD-pwd}`/.libs"
294 AC_SUBST(LIBGCJTESTSPEC)
296 AC_ARG_WITH(system-zlib,
297 [ --with-system-zlib use installed libz])
301 AC_SUBST(ZLIBTESTSPEC)
305 dnl Determine which AWT peer libraries to build
306 AC_ARG_ENABLE(java-awt,
307 [ --enable-java-awt list of AWT peer implementations to be built])
309 peerlibs="`echo ${enable_java_awt} | tr ',' ' '`"
312 # The default toolkit to use is the first one specified.
316 for peer in $peerlibs ; do
319 if test "$no_x" = yes; then
320 echo "*** xlib peers requested but no X library available" 1>&2
324 if test -z "$TOOLKIT"; then
325 TOOLKIT=gnu.awt.xlib.XToolkit
330 if test "$no_x" = yes; then
331 echo "*** xlib peers requested but no X library available" 1>&2
335 if test -z "$TOOLKIT"; then
336 TOOLKIT=gnu.java.awt.peer.gtk.GtkToolkit
338 test -d jniinclude || mkdir jniinclude
347 echo "*** unrecognised argument \"${peer}\" for --enable-java-awt" 1>&2
352 AM_CONDITIONAL(XLIB_AWT, test "$use_xlib_awt" = yes)
353 AM_CONDITIONAL(GTK_AWT, test "$use_gtk_awt" = yes)
356 dnl FIXME: this should be _libs on some hosts.
359 dnl Allow the GC to be disabled. Can be useful when debugging.
360 AC_MSG_CHECKING([for garbage collector to use])
361 AC_ARG_ENABLE(java-gc,
362 changequote(<<,>>)dnl
363 << --enable-java-gc=TYPE choose garbage collector [boehm]>>,
377 GCLIBS=../boehm-gc/libgcjgc_convenience.la
378 JC1GCSPEC='-fuse-boehm-gc'
379 GCTESTSPEC="-L`${PWDCMD-pwd}`/../boehm-gc/.libs -rpath `${PWDCMD-pwd}`/../boehm-gc/.libs"
381 dnl We also want to pick up some cpp flags required when including
382 dnl boehm-config.h. Yuck.
383 GCINCS="`cat ../boehm-gc/boehm-cflags`"
386 dnl The POSIX thread support needs to know this.
387 AC_DEFINE(HAVE_BOEHM_GC)
395 AC_MSG_ERROR(unrecognized collector \"$GC\")
405 AC_LINK_FILES(include/$GCHDR, include/java-gc.h)
408 AC_MSG_CHECKING([for thread model used by GCC])
409 THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
410 AC_MSG_RESULT([$THREADS])
420 AC_DEFINE(LINUX_THREADS)
426 decosf1 | irix | mach | os2 | solaris | dce | vxworks)
427 AC_MSG_ERROR(thread package $THREADS not yet supported)
430 AC_MSG_ERROR($THREADS is an unknown thread package)
446 # Don't set THREADLIBS here. Cygwin doesn't have -lpthread.
451 # Before FreeBSD 5, it didn't have -lpthread (or any library which
452 # merely adds pthread_* functions) but it does have a -pthread switch
453 # which is required at link-time to select -lc_r *instead* of -lc.
454 THREADLDFLAGS=-pthread
455 # Don't set THREADSPEC here as might be expected since -pthread is
456 # not processed when found within a spec file, it must come from
457 # the command line. For now, the user must provide the -pthread
458 # switch to link code compiled with gcj. In future, consider adding
459 # support for weak references to pthread_* functions ala gthr.h API.
460 THREADSPEC='%{!pthread: %eUnder this configuration, the user must provide -pthread when linking.}'
463 # FreeBSD 5 implements a model much closer to other modern UNIX
464 # which support threads. However, it still does not support
466 THREADLDFLAGS=-pthread
470 THREADCXXFLAGS=-pthread
471 # boehm-gc needs some functions from librt, so link that too.
472 THREADLIBS='-lpthread -lrt'
473 THREADSPEC='-lpthread -lrt'
480 THREADOBJS=posix-threads.lo
481 THREADH=posix-threads.h
482 # MIT pthreads doesn't seem to have the mutexattr functions.
483 # But for now we don't check for it. We just assume you aren't
484 # using MIT pthreads.
485 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
487 # If we're using the Boehm GC, then we happen to know that it
488 # defines _REENTRANT, so we don't bother. Eww.
489 if test "$GC" != boehm; then
490 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
492 AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1, [Required define if using POSIX threads])
496 THREADOBJS=win32-threads.lo
497 THREADH=win32-threads.h
501 THREADOBJS=no-threads.lo
505 AC_LINK_FILES(include/$THREADH, include/java-threads.h)
511 AC_SUBST(THREADLDFLAGS)
512 AC_SUBST(THREADCXXFLAGS)
514 if test -d sysdep; then true; else mkdir sysdep; fi
515 AC_LINK_FILES(sysdep/$sysdeps_dir/locks.h, sysdep/locks.h)
518 # Hash synchronization is only useful with posix threads right now.
519 if test "$enable_hash_synchronization" = yes && test "$THREADS" != "none"; then
520 HASH_SYNC_SPEC=-fhash-synchronization
521 AC_DEFINE(JV_HASH_SYNCHRONIZATION, 1, [Define if hash synchronization is in use])
523 AC_SUBST(HASH_SYNC_SPEC)
526 AM_CONDITIONAL(USING_GCC, test "$GCC" = yes)
532 # We're in the tree with gcc, and need to include some of its headers.
533 GCC_UNWIND_INCLUDE='-I$(libgcj_basedir)/../gcc'
535 # Figure out where generated headers like libgcj-config.h get installed.
537 gcc_version_trigger=${libgcj_basedir}/../gcc/version.c
538 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
539 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
540 tool_include_dir='$(libdir)/gcc/$(target_alias)/'${gcc_version}/include
542 AC_SUBST(tool_include_dir)
543 AC_SUBST(gcc_version)
545 if test "x${with_newlib}" = "xyes"; then
546 # We are being configured with a cross compiler. AC_REPLACE_FUNCS
547 # may not work correctly, because the compiler may not be able to
550 # We assume newlib. This lets us hard-code the functions we know
552 AC_DEFINE(HAVE_MEMMOVE)
553 AC_DEFINE(HAVE_MEMCPY)
554 AC_DEFINE(HAVE_STRERROR)
556 AC_DEFINE(HAVE_GMTIME_R)
557 AC_DEFINE(HAVE_LOCALTIME_R)
558 dnl This is only for POSIX threads.
559 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
560 dnl We also assume we are using gcc, which provides alloca.
561 AC_DEFINE(HAVE_ALLOCA)
563 dnl Assume we do not have getuid and friends.
567 AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep opendir)
568 AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r getcwd)
569 AC_CHECK_FUNCS(access stat mkdir rename rmdir unlink realpath utime chmod)
570 AC_CHECK_FUNCS(nl_langinfo setlocale)
571 AC_CHECK_FUNCS(inet_aton inet_addr, break)
572 AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
573 AC_CHECK_FUNCS(fork execvp pipe sigaction ftruncate)
574 AC_CHECK_HEADERS(execinfo.h unistd.h dlfcn.h)
575 AC_CHECK_FUNC(backtrace, [
578 # Has broken backtrace()
581 AC_DEFINE(HAVE_BACKTRACE)
587 # Has backtrace() defined in libgcj itself
588 AC_DEFINE(HAVE_BACKTRACE)
593 AC_CHECK_LIB(dl, dladdr, [
594 AC_DEFINE(HAVE_DLADDR)])
595 if test x"$build" = x"$host"; then
596 AC_CHECK_FILES(/proc/self/exe, [
597 AC_DEFINE(HAVE_PROC_SELF_EXE)])
601 AC_DEFINE(HAVE_PROC_SELF_EXE)
610 AC_CHECK_FUNCS(gethostbyname_r, [
611 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
612 # There are two different kinds of gethostbyname_r.
613 # We look for the one that returns `int'.
614 # Hopefully this check is robust enough.
615 AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [
616 AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT)])
619 *" -D_REENTRANT "*) ;;
621 dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT
622 AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT],
623 [libjava_cv_gethostbyname_r_needs_reentrant],
626 AC_TRY_COMPILE([#include <netdb.h>],
627 [gethostbyname_r("", 0, 0);],
628 [libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl
629 CPPFLAGS_SAVE="$CPPFLAGS"
630 CPPFLAGS="$CPPFLAGS -D_REENTRANT"
631 AC_TRY_COMPILE([#include <netdb.h>], [gethostbyname_r("", 0, 0);],
632 [libjava_cv_gethostbyname_r_needs_reentrant=yes],
633 [libjava_cv_gethostbyname_r_needs_reentrant=fail])
634 CPPFLAGS="$CPPFLAGS_SAVE"
638 if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then
639 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
644 AC_CACHE_CHECK([for struct hostent_data],
645 [libjava_cv_struct_hostent_data], [dnl
647 #if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
648 # define _REENTRANT 1
650 #include <netdb.h>], [struct hostent_data data;],
651 [libjava_cv_struct_hostent_data=yes],
652 [libjava_cv_struct_hostent_data=no])])
653 if test "x$libjava_cv_struct_hostent_data" = xyes; then
654 AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1,
655 [Define if struct hostent_data is defined in netdb.h])
659 # FIXME: libjava source code expects to find a prototype for
660 # gethostbyaddr_r in netdb.h. The outer check ensures that
661 # HAVE_GETHOSTBYADDR_R will not be defined if the prototype fails
662 # to exist where expected. (The root issue: AC_CHECK_FUNCS assumes C
663 # linkage check is enough, yet C++ code requires proper prototypes.)
664 AC_EGREP_HEADER(gethostbyaddr_r, netdb.h, [
665 AC_CHECK_FUNCS(gethostbyaddr_r, [
666 AC_DEFINE(HAVE_GETHOSTBYADDR_R)
667 # There are two different kinds of gethostbyaddr_r.
668 # We look for the one that returns `int'.
669 # Hopefully this check is robust enough.
670 AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [
671 AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT)])])])
673 AC_CHECK_FUNCS(gethostname, [
674 AC_DEFINE(HAVE_GETHOSTNAME)
675 AC_EGREP_HEADER(gethostname, unistd.h, [
676 AC_DEFINE(HAVE_GETHOSTNAME_DECL)])])
678 AC_CHECK_FUNCS(usleep, [
679 AC_EGREP_HEADER(usleep, unistd.h, [
680 AC_DEFINE(HAVE_USLEEP_DECL)])])
682 # Look for these functions in the thread library, but only bother
683 # if using POSIX threads.
684 if test "$THREADS" = posix; then
686 LIBS="$LIBS $THREADLIBS"
687 # Some POSIX thread systems don't have pthread_mutexattr_settype.
689 AC_CHECK_FUNCS(pthread_mutexattr_settype pthread_mutexattr_setkind_np)
691 # Look for sched_yield. Up to Solaris 2.6, it is in libposix4, since
692 # Solaris 7 the name librt is preferred.
693 AC_CHECK_FUNCS(sched_yield, , [
694 AC_CHECK_LIB(rt, sched_yield, [
695 AC_DEFINE(HAVE_SCHED_YIELD)
696 THREADLIBS="$THREADLIBS -lrt"
697 THREADSPEC="$THREADSPEC -lrt"], [
698 AC_CHECK_LIB(posix4, sched_yield, [
699 AC_DEFINE(HAVE_SCHED_YIELD)
700 THREADLIBS="$THREADLIBS -lposix4"
701 THREADSPEC="$THREADSPEC -lposix4"])])])
704 # We can save a little space at runtime if the mutex has m_count
705 # or __m_count. This is a nice hack for Linux.
706 AC_TRY_COMPILE([#include <pthread.h>], [
707 extern pthread_mutex_t *mutex; int q = mutex->m_count;
708 ], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT), [
709 AC_TRY_COMPILE([#include <pthread.h>], [
710 extern pthread_mutex_t *mutex; int q = mutex->__m_count;
711 ], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT))])
714 # We require a way to get the time.
716 AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes)
717 if test "$time_found" = no; then
718 AC_MSG_ERROR([no function found to get the time])
721 AC_CHECK_FUNCS(memmove)
725 AC_CHECK_FUNCS(memcpy, memcpy_found=yes)
726 if test "$memcpy_found" = no; then
727 AC_MSG_ERROR([memcpy is required])
730 AC_CHECK_LIB(dl, dlopen, [
731 AC_DEFINE(HAVE_DLOPEN, 1, [Define if dlopen is available])])
733 # Some library-finding code we stole from Tcl.
734 #--------------------------------------------------------------------
735 # Check for the existence of the -lsocket and -lnsl libraries.
736 # The order here is important, so that they end up in the right
737 # order in the command line generated by make. Here are some
738 # special considerations:
739 # 1. Use "connect" and "accept" to check for -lsocket, and
740 # "gethostbyname" to check for -lnsl.
741 # 2. Use each function name only once: can't redo a check because
742 # autoconf caches the results of the last check and won't redo it.
743 # 3. Use -lnsl and -lsocket only if they supply procedures that
744 # aren't already present in the normal libraries. This is because
745 # IRIX 5.2 has libraries, but they aren't needed and they're
746 # bogus: they goof up name resolution if used.
747 # 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
748 # To get around this problem, check for both libraries together
749 # if -lsocket doesn't work by itself.
750 #--------------------------------------------------------------------
752 AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets,
755 unset ac_cv_func_connect
756 AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1)
757 if test "$gcj_checkSocket" = 1; then
758 unset ac_cv_func_connect
759 AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket",
762 if test "$gcj_checkBoth" = 1; then
764 LIBS="$LIBS -lsocket -lnsl"
765 unset ac_cv_func_accept
766 AC_CHECK_FUNC(accept,
768 gcj_cv_lib_sockets="-lsocket -lnsl"])
769 unset ac_cv_func_accept
772 unset ac_cv_func_gethostbyname
774 LIBS="$LIBS $gcj_cv_lib_sockets"
775 AC_CHECK_FUNC(gethostbyname, ,
776 [AC_CHECK_LIB(nsl, main,
777 [gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])])
778 unset ac_cv_func_gethostbyname
781 SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets"
783 if test "$with_system_zlib" = yes; then
784 AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=)
787 # Test for Gtk stuff, if asked for.
788 if test "$use_gtk_awt" = yes; then
789 AM_PATH_GTK_2_0(2.0.0,,exit 1)
790 AM_PATH_GLIB_2_0(2.0.0,,exit 1,gthread)
791 dnl XXX Fix me when libart.m4 has the compile test fixed!
793 AM_PATH_LIBART(2.1.0,,exit 1)
796 # On Solaris, and maybe other architectures, the Boehm collector
798 if test "$GC" = boehm; then
799 AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl")
803 if test -z "${with_multisubdir}"; then
807 builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`
811 # Which gcj do we use?
813 built_gcc_dir="`cd ${builddotdot}/../../gcc && ${PWDCMD-pwd}`"
814 if test -n "${with_cross_host}"; then
815 # We are being configured with a cross compiler. We can't
816 # use ac_exeext, because that is for the target platform.
819 case "${with_cross_host}" in
821 cross_host_exeext=.exe
824 if test -x "${built_gcc_dir}/gcj${cross_host_exeext}"; then
825 if test x"$build_alias" = x"$with_cross_host"; then
826 # Ordinary cross (host!=target and host=build)
829 # Canadian cross (host!=target and host!=build)
836 # We are being configured with a native or crossed-native compiler
837 if test -x "${built_gcc_dir}/gcj${ac_exeext}"; then
838 if test x"$build" = x"$host"; then
839 # True native build (host=target and host=build)
842 # Crossed-native build (host=target and host!=build)
849 case "${which_gcj}" in
851 GCJ="$built_gcc_dir/gcj -B`${PWDCMD-pwd}`/ -B$built_gcc_dir/"
854 # See the comment in Makefile.am about CANADIAN being a misnomer
857 if test "x${with_newlib}" = "xyes"; then
858 # FIXME (comment): Why is this needed?
860 GCJ="${target_alias}-gcj"
862 GCJ="${target_alias}-gcj -B`${PWDCMD-pwd}`/"
866 # See the comment in Makefile.am about CANADIAN being a misnomer
869 GCJ="gcj -B`${PWDCMD-pwd}`/"
873 # Create it, so that compile/link tests don't fail
874 test -f libgcj.spec || touch libgcj.spec
876 # We must search the source tree for java.lang, since we still don't
877 # have libgcj.jar nor java/lang/*.class
878 GCJ_SAVE_CPPFLAGS=$CPPFLAGS
879 CPPFLAGS="$CPPFLAGS -I`${PWDCMD-pwd}` -I`cd $srcdir && ${PWDCMD-pwd}`"
881 # Since some classes depend on this one, we need its source available
882 # before we can do any GCJ compilation test :-(
883 if test ! -f gnu/classpath/Configuration.java; then
884 test -d gnu || mkdir gnu
885 test -d gnu/classpath || mkdir gnu/classpath
886 sed -e 's,@LIBGCJDEBUG@,$LIBGCJDEBUG,' \
887 -e 's,@TOOLKIT@,$TOOLKIT,' \
888 < $srcdir/gnu/classpath/Configuration.java.in \
889 > gnu/classpath/Configuration.java
890 # We do not want to redirect the output of the grep below to /dev/null,
891 # but we add /dev/null to the input list so that grep will print the
892 # filename of Configuration.java in case it finds any matches.
893 if grep @ gnu/classpath/Configuration.java /dev/null; then
894 AC_MSG_ERROR([configure.in is missing the substitutions above])
900 CPPFLAGS=$GCJ_SAVE_CPPFLAGS
902 AC_COMPILE_CHECK_SIZEOF(void *)
908 if test -z "$ZLIBSPEC"; then
909 # Use zlib from the GCC tree.
910 ZINCS='-I$(top_srcdir)/../zlib'
911 ZLIBS=../zlib/libzgcj_convenience.la
914 SYS_ZLIBS="$ZLIBSPEC"
920 AC_SUBST(CHECKREFSPEC)
921 AC_SUBST(EXCEPTIONSPEC)
924 AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
925 AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
926 AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
927 AM_CONDITIONAL(NEEDS_DATA_START, test "$NEEDS_DATA_START" = yes && test "$NATIVE" = yes)
928 AC_SUBST(GCC_UNWIND_INCLUDE)
930 if test -n "$with_cross_host" &&
931 test x"$with_cross_host" != x"no"; then
932 toolexecdir='$(exec_prefix)/$(target_alias)'
933 toolexecmainlibdir='$(toolexecdir)/lib'
935 toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
936 toolexecmainlibdir='$(libdir)'
938 multi_os_directory=`$CC -print-multi-os-directory`
939 case $multi_os_directory in
940 .) toolexeclibdir=$toolexecmainlibdir ;; # Avoid trailing /.
941 *) toolexeclibdir=$toolexecmainlibdir/$multi_os_directory ;;
943 AC_SUBST(toolexecdir)
944 AC_SUBST(toolexecmainlibdir)
945 AC_SUBST(toolexeclibdir)
947 # Determine gcj version number.
949 gcjversion=`$GCJ -v 2>&1 | sed -n 's/^.*version \([^ ]*\).*$/\1/p'`
951 GCJVERSION=$gcjversion
953 AC_DEFINE_UNQUOTED(GCJVERSION, "$GCJVERSION", [Short GCJ version ID])
955 dnl Work around a g++ bug. Reported to gcc-bugs@gcc.gnu.org on Jan 22, 2000.
956 AC_MSG_CHECKING([for g++ -ffloat-store bug])
957 save_CFLAGS="$CFLAGS"
958 CFLAGS="-x c++ -O2 -ffloat-store"
959 AC_TRY_COMPILE([#include <math.h>], ,
961 [AC_DEFINE(__NO_MATH_INLINES)
963 CFLAGS="$save_CFLAGS"
965 dnl We check for sys/filio.h because Solaris 2.5 defines FIONREAD there.
966 dnl On that system, sys/ioctl.h will not include sys/filio.h unless
967 dnl BSD_COMP is defined; just including sys/filio.h is simpler.
968 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 net/if.h pwd.h sys/config.h stdint.h langinfo.h locale.h)
969 dnl We avoid AC_HEADER_DIRENT since we really only care about dirent.h
970 dnl for now. If you change this, you also must update natFile.cc.
971 AC_CHECK_HEADERS(dirent.h)
972 AC_CHECK_HEADERS(inttypes.h, [
973 AC_DEFINE(HAVE_INTTYPES_H, 1, [Define if <inttypes.h> is available])
974 AC_DEFINE(JV_HAVE_INTTYPES_H, 1, [Define if <inttypes.h> is available])
978 AC_CHECK_TYPE([ssize_t], [int])
980 AC_MSG_CHECKING([for in_addr_t])
981 AC_TRY_COMPILE([#include <sys/types.h>
986 #if HAVE_NETINET_IN_H
987 #include <netinet/in.h>
988 #endif], [in_addr_t foo;],
989 [AC_DEFINE([HAVE_IN_ADDR_T])
993 AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h])
994 AC_TRY_COMPILE([#include <netinet/in.h>], [struct ip_mreq mreq;],
995 [AC_DEFINE(HAVE_STRUCT_IP_MREQ)
999 AC_MSG_CHECKING([whether struct ipv6_mreq is in netinet/in.h])
1000 AC_TRY_COMPILE([#include <netinet/in.h>], [struct ipv6_mreq mreq6;],
1001 [AC_DEFINE(HAVE_STRUCT_IPV6_MREQ)
1002 AC_MSG_RESULT(yes)],
1003 [AC_MSG_RESULT(no)])
1005 AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h])
1006 AC_TRY_COMPILE([#include <netinet/in.h>], [struct sockaddr_in6 addr6;],
1007 [AC_DEFINE(HAVE_INET6)
1008 AC_MSG_RESULT(yes)],
1009 [AC_MSG_RESULT(no)])
1011 AC_MSG_CHECKING([for socklen_t in sys/socket.h])
1012 AC_TRY_COMPILE([#define _POSIX_PII_SOCKET
1013 #include <sys/types.h>
1014 #include <sys/socket.h>], [socklen_t x = 5;],
1015 [AC_DEFINE(HAVE_SOCKLEN_T)
1016 AC_MSG_RESULT(yes)],
1017 [AC_MSG_RESULT(no)])
1019 AC_MSG_CHECKING([for tm_gmtoff in struct tm])
1020 AC_TRY_COMPILE([#include <time.h>], [struct tm tim; tim.tm_gmtoff = 0;],
1021 [AC_DEFINE(STRUCT_TM_HAS_GMTOFF)
1022 AC_MSG_RESULT(yes)],
1024 AC_MSG_CHECKING([for global timezone variable])
1025 dnl FIXME: we don't want a link check here because that won't work
1026 dnl when cross-compiling. So instead we make an assumption that
1027 dnl the header file will mention timezone if it exists.
1028 dnl Don't find the win32 function timezone
1029 AC_TRY_COMPILE([#include <time.h>], [void i(){long z2 = 2*timezone;}],
1030 [AC_DEFINE(HAVE_TIMEZONE)
1031 AC_MSG_RESULT(yes)],
1033 AC_MSG_CHECKING([for global _timezone variable])
1034 dnl FIXME: As above, don't want link check
1035 AC_TRY_COMPILE([#include <time.h>], [long z2 = _timezone;],
1036 [AC_DEFINE(HAVE_UNDERSCORE_TIMEZONE)
1037 AC_MSG_RESULT(yes)],
1038 [AC_MSG_RESULT(no)])])])
1043 AC_CHECK_PROGS(PERL, perl, false)
1049 SIGNAL_HANDLER=include/i386-signal.h
1051 sparc*-sun-solaris*)
1052 SIGNAL_HANDLER=include/sparc-signal.h
1055 # SYSDEP_SOURCES=sysdep/ia64.c
1056 # test -d sysdep || mkdir sysdep
1059 SIGNAL_HANDLER=include/dwarf2-signal.h
1062 SIGNAL_HANDLER=include/powerpc-signal.h
1065 SIGNAL_HANDLER=include/dwarf2-signal.h
1068 SIGNAL_HANDLER=include/s390-signal.h
1071 SIGNAL_HANDLER=include/x86_64-signal.h
1074 SIGNAL_HANDLER=include/dwarf2-signal.h
1076 sh-*-linux* | sh[[34]]*-*-linux*)
1077 SIGNAL_HANDLER=include/dwarf2-signal.h
1080 SIGNAL_HANDLER=include/win32-signal.h
1083 SIGNAL_HANDLER=include/default-signal.h
1087 # If we're using sjlj exceptions, forget what we just learned.
1088 if test "$enable_sjlj_exceptions" = yes; then
1089 SIGNAL_HANDLER=include/default-signal.h
1092 # Define here any compiler flags that you need in order to make backtrace() work.
1096 BACKTRACESPEC=-fno-omit-frame-pointer
1099 AC_SUBST(BACKTRACESPEC)
1101 AC_SUBST(SYSDEP_SOURCES)
1103 AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h)
1105 if test "${multilib}" = "yes"; then
1106 multilib_arg="--enable-multilib"
1113 here=`${PWDCMD-pwd}`
1116 # We get this from the environment.
1119 AC_OUTPUT(Makefile libgcj.pc libgcj.spec libgcj-test.spec gnu/classpath/Configuration.java gcj/Makefile include/Makefile testsuite/Makefile,
1120 [# Only add multilib support code if we just rebuilt top-level Makefile.
1121 case " $CONFIG_FILES " in
1123 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
1124 ac_file=Makefile . ${libgcj_basedir}/../config-ml.in
1128 # Make subdirectories and `.d' files. Look in both srcdir and
1129 # builddir for the .java files.
1132 ( (cd $srcdir && find . \( -name '*.java' -o -name '*.cc' -o -name '*.c' \) -print) ;
1133 find . \( -name '*.java' -o -name '*.cc' -o -name '*.c' \) -print) | \
1134 fgrep -v testsuite | \
1135 sed -e 's/\.java/.d/'\;'s/\.cc/.d/'\;'s/\.c/.d/' | \
1137 echo "include $f" >> deps.mk
1140 d=`echo $f | sed -e 's,/[^/]*$,,'`
1142 if test ! -d $d; then
1143 $libgcj_basedir/../mkinstalldirs $d
1152 with_multisubdir=${with_multisubdir}
1153 ac_configure_args="${multilib_arg} ${ac_configure_args}"
1154 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
1155 libgcj_basedir=${libgcj_basedir}
1158 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"