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 and natNetworkInterface.cc.
276 test -d java/net || mkdir java/net
277 AC_LINK_FILES(java/net/natInetAddress${PLATFORMNET}.cc, java/net/natInetAddress.cc)
278 AC_LINK_FILES(java/net/natNetworkInterface${PLATFORMNET}.cc, java/net/natNetworkInterface.cc)
280 dnl Likewise for natPlainSocketImpl.cc and natPlainDatagramSocketImpl.ca.c
281 test -d gnu/java || mkdir gnu/java
282 test -d gnu/java/net || mkdir gnu/java/net
283 AC_LINK_FILES(gnu/java/net/natPlainSocketImpl${PLATFORMNET}.cc, gnu/java/net/natPlainSocketImpl.cc)
284 AC_LINK_FILES(gnu/java/net/natPlainDatagramSocketImpl${PLATFORMNET}.cc, gnu/java/net/natPlainDatagramSocketImpl.cc)
288 SYSTEMSPEC="-lgdi32 -lwsock32 -lws2_32"
296 LIBGCJTESTSPEC="-L`${PWDCMD-pwd}`/.libs -rpath `${PWDCMD-pwd}`/.libs"
297 AC_SUBST(LIBGCJTESTSPEC)
299 AC_ARG_WITH(system-zlib,
300 [ --with-system-zlib use installed libz])
304 AC_SUBST(ZLIBTESTSPEC)
308 dnl Determine which AWT peer libraries to build
309 AC_ARG_ENABLE(java-awt,
310 [ --enable-java-awt list of AWT peer implementations to be built])
312 peerlibs="`echo ${enable_java_awt} | tr ',' ' '`"
315 # The default toolkit to use is the first one specified.
319 for peer in $peerlibs ; do
322 if test "$no_x" = yes; then
323 echo "*** xlib peers requested but no X library available" 1>&2
327 if test -z "$TOOLKIT"; then
328 TOOLKIT=gnu.awt.xlib.XToolkit
333 if test "$no_x" = yes; then
334 echo "*** xlib peers requested but no X library available" 1>&2
338 if test -z "$TOOLKIT"; then
339 TOOLKIT=gnu.java.awt.peer.gtk.GtkToolkit
341 test -d jniinclude || mkdir jniinclude
350 echo "*** unrecognised argument \"${peer}\" for --enable-java-awt" 1>&2
355 AM_CONDITIONAL(XLIB_AWT, test "$use_xlib_awt" = yes)
356 AM_CONDITIONAL(GTK_AWT, test "$use_gtk_awt" = yes)
359 dnl FIXME: this should be _libs on some hosts.
362 dnl Allow the GC to be disabled. Can be useful when debugging.
363 AC_MSG_CHECKING([for garbage collector to use])
364 AC_ARG_ENABLE(java-gc,
365 changequote(<<,>>)dnl
366 << --enable-java-gc=TYPE choose garbage collector [boehm]>>,
380 GCLIBS=../boehm-gc/libgcjgc_convenience.la
381 JC1GCSPEC='-fuse-boehm-gc'
382 GCTESTSPEC="-L`${PWDCMD-pwd}`/../boehm-gc/.libs -rpath `${PWDCMD-pwd}`/../boehm-gc/.libs"
384 dnl We also want to pick up some cpp flags required when including
385 dnl boehm-config.h. Yuck.
386 GCINCS="`cat ../boehm-gc/boehm-cflags`"
389 dnl The POSIX thread support needs to know this.
390 AC_DEFINE(HAVE_BOEHM_GC)
398 AC_MSG_ERROR(unrecognized collector \"$GC\")
408 AC_LINK_FILES(include/$GCHDR, include/java-gc.h)
411 AC_MSG_CHECKING([for thread model used by GCC])
412 THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
413 AC_MSG_RESULT([$THREADS])
423 AC_DEFINE(LINUX_THREADS)
429 decosf1 | irix | mach | os2 | solaris | dce | vxworks)
430 AC_MSG_ERROR(thread package $THREADS not yet supported)
433 AC_MSG_ERROR($THREADS is an unknown thread package)
449 # Don't set THREADLIBS here. Cygwin doesn't have -lpthread.
454 # Before FreeBSD 5, it didn't have -lpthread (or any library which
455 # merely adds pthread_* functions) but it does have a -pthread switch
456 # which is required at link-time to select -lc_r *instead* of -lc.
457 THREADLDFLAGS=-pthread
458 # Don't set THREADSPEC here as might be expected since -pthread is
459 # not processed when found within a spec file, it must come from
460 # the command line. For now, the user must provide the -pthread
461 # switch to link code compiled with gcj. In future, consider adding
462 # support for weak references to pthread_* functions ala gthr.h API.
463 THREADSPEC='%{!pthread: %eUnder this configuration, the user must provide -pthread when linking.}'
466 # FreeBSD 5 implements a model much closer to other modern UNIX
467 # which support threads. However, it still does not support
469 THREADLDFLAGS=-pthread
473 THREADCXXFLAGS=-pthread
474 # boehm-gc needs some functions from librt, so link that too.
475 THREADLIBS='-lpthread -lrt'
476 THREADSPEC='-lpthread -lrt'
483 THREADOBJS=posix-threads.lo
484 THREADH=posix-threads.h
485 # MIT pthreads doesn't seem to have the mutexattr functions.
486 # But for now we don't check for it. We just assume you aren't
487 # using MIT pthreads.
488 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
490 # If we're using the Boehm GC, then we happen to know that it
491 # defines _REENTRANT, so we don't bother. Eww.
492 if test "$GC" != boehm; then
493 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
495 AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1, [Required define if using POSIX threads])
499 THREADOBJS=win32-threads.lo
500 THREADH=win32-threads.h
504 THREADOBJS=no-threads.lo
508 AC_LINK_FILES(include/$THREADH, include/java-threads.h)
514 AC_SUBST(THREADLDFLAGS)
515 AC_SUBST(THREADCXXFLAGS)
517 if test -d sysdep; then true; else mkdir sysdep; fi
518 AC_LINK_FILES(sysdep/$sysdeps_dir/locks.h, sysdep/locks.h)
521 # Hash synchronization is only useful with posix threads right now.
522 if test "$enable_hash_synchronization" = yes && test "$THREADS" != "none"; then
523 HASH_SYNC_SPEC=-fhash-synchronization
524 AC_DEFINE(JV_HASH_SYNCHRONIZATION, 1, [Define if hash synchronization is in use])
526 AC_SUBST(HASH_SYNC_SPEC)
529 AM_CONDITIONAL(USING_GCC, test "$GCC" = yes)
535 # We're in the tree with gcc, and need to include some of its headers.
536 GCC_UNWIND_INCLUDE='-I$(libgcj_basedir)/../gcc'
538 # Figure out where generated headers like libgcj-config.h get installed.
540 gcc_version_trigger=${libgcj_basedir}/../gcc/version.c
541 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
542 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
543 tool_include_dir='$(libdir)/gcc/$(target_alias)/'${gcc_version}/include
545 AC_SUBST(tool_include_dir)
546 AC_SUBST(gcc_version)
548 if test "x${with_newlib}" = "xyes"; then
549 # We are being configured with a cross compiler. AC_REPLACE_FUNCS
550 # may not work correctly, because the compiler may not be able to
553 # We assume newlib. This lets us hard-code the functions we know
555 AC_DEFINE(HAVE_MEMMOVE)
556 AC_DEFINE(HAVE_MEMCPY)
557 AC_DEFINE(HAVE_STRERROR)
559 AC_DEFINE(HAVE_GMTIME_R)
560 AC_DEFINE(HAVE_LOCALTIME_R)
561 dnl This is only for POSIX threads.
562 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
563 dnl We also assume we are using gcc, which provides alloca.
564 AC_DEFINE(HAVE_ALLOCA)
566 dnl Assume we do not have getuid and friends.
570 AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep opendir)
571 AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r getcwd)
572 AC_CHECK_FUNCS(access stat mkdir rename rmdir unlink realpath utime chmod)
573 AC_CHECK_FUNCS(nl_langinfo setlocale)
574 AC_CHECK_FUNCS(inet_aton inet_addr, break)
575 AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
576 AC_CHECK_FUNCS(fork execvp pipe sigaction ftruncate)
577 AC_CHECK_HEADERS(execinfo.h unistd.h dlfcn.h)
578 AC_CHECK_FUNC(backtrace, [
581 # Has broken backtrace()
584 AC_DEFINE(HAVE_BACKTRACE)
590 # Has backtrace() defined in libgcj itself
591 AC_DEFINE(HAVE_BACKTRACE)
596 AC_CHECK_LIB(dl, dladdr, [
597 AC_DEFINE(HAVE_DLADDR)])
598 if test x"$build" = x"$host"; then
599 AC_CHECK_FILES(/proc/self/exe, [
600 AC_DEFINE(HAVE_PROC_SELF_EXE)])
604 AC_DEFINE(HAVE_PROC_SELF_EXE)
613 AC_CHECK_FUNCS(gethostbyname_r, [
614 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
615 # There are two different kinds of gethostbyname_r.
616 # We look for the one that returns `int'.
617 # Hopefully this check is robust enough.
618 AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [
619 AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT)])
622 *" -D_REENTRANT "*) ;;
624 dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT
625 AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT],
626 [libjava_cv_gethostbyname_r_needs_reentrant],
629 AC_TRY_COMPILE([#include <netdb.h>],
630 [gethostbyname_r("", 0, 0);],
631 [libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl
632 CPPFLAGS_SAVE="$CPPFLAGS"
633 CPPFLAGS="$CPPFLAGS -D_REENTRANT"
634 AC_TRY_COMPILE([#include <netdb.h>], [gethostbyname_r("", 0, 0);],
635 [libjava_cv_gethostbyname_r_needs_reentrant=yes],
636 [libjava_cv_gethostbyname_r_needs_reentrant=fail])
637 CPPFLAGS="$CPPFLAGS_SAVE"
641 if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then
642 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
647 AC_CACHE_CHECK([for struct hostent_data],
648 [libjava_cv_struct_hostent_data], [dnl
650 #if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
651 # define _REENTRANT 1
653 #include <netdb.h>], [struct hostent_data data;],
654 [libjava_cv_struct_hostent_data=yes],
655 [libjava_cv_struct_hostent_data=no])])
656 if test "x$libjava_cv_struct_hostent_data" = xyes; then
657 AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1,
658 [Define if struct hostent_data is defined in netdb.h])
662 # FIXME: libjava source code expects to find a prototype for
663 # gethostbyaddr_r in netdb.h. The outer check ensures that
664 # HAVE_GETHOSTBYADDR_R will not be defined if the prototype fails
665 # to exist where expected. (The root issue: AC_CHECK_FUNCS assumes C
666 # linkage check is enough, yet C++ code requires proper prototypes.)
667 AC_EGREP_HEADER(gethostbyaddr_r, netdb.h, [
668 AC_CHECK_FUNCS(gethostbyaddr_r, [
669 AC_DEFINE(HAVE_GETHOSTBYADDR_R)
670 # There are two different kinds of gethostbyaddr_r.
671 # We look for the one that returns `int'.
672 # Hopefully this check is robust enough.
673 AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [
674 AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT)])])])
676 AC_CHECK_FUNCS(gethostname, [
677 AC_DEFINE(HAVE_GETHOSTNAME)
678 AC_EGREP_HEADER(gethostname, unistd.h, [
679 AC_DEFINE(HAVE_GETHOSTNAME_DECL)])])
681 AC_CHECK_FUNCS(usleep, [
682 AC_EGREP_HEADER(usleep, unistd.h, [
683 AC_DEFINE(HAVE_USLEEP_DECL)])])
685 # Look for these functions in the thread library, but only bother
686 # if using POSIX threads.
687 if test "$THREADS" = posix; then
689 LIBS="$LIBS $THREADLIBS"
690 # Some POSIX thread systems don't have pthread_mutexattr_settype.
692 AC_CHECK_FUNCS(pthread_mutexattr_settype pthread_mutexattr_setkind_np)
694 # Look for sched_yield. Up to Solaris 2.6, it is in libposix4, since
695 # Solaris 7 the name librt is preferred.
696 AC_CHECK_FUNCS(sched_yield, , [
697 AC_CHECK_LIB(rt, sched_yield, [
698 AC_DEFINE(HAVE_SCHED_YIELD)
699 THREADLIBS="$THREADLIBS -lrt"
700 THREADSPEC="$THREADSPEC -lrt"], [
701 AC_CHECK_LIB(posix4, sched_yield, [
702 AC_DEFINE(HAVE_SCHED_YIELD)
703 THREADLIBS="$THREADLIBS -lposix4"
704 THREADSPEC="$THREADSPEC -lposix4"])])])
707 # We can save a little space at runtime if the mutex has m_count
708 # or __m_count. This is a nice hack for Linux.
709 AC_TRY_COMPILE([#include <pthread.h>], [
710 extern pthread_mutex_t *mutex; int q = mutex->m_count;
711 ], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT), [
712 AC_TRY_COMPILE([#include <pthread.h>], [
713 extern pthread_mutex_t *mutex; int q = mutex->__m_count;
714 ], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT))])
717 # We require a way to get the time.
719 AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes)
720 if test "$time_found" = no; then
721 AC_MSG_ERROR([no function found to get the time])
724 AC_CHECK_FUNCS(memmove)
728 AC_CHECK_FUNCS(memcpy, memcpy_found=yes)
729 if test "$memcpy_found" = no; then
730 AC_MSG_ERROR([memcpy is required])
733 AC_CHECK_LIB(dl, dlopen, [
734 AC_DEFINE(HAVE_DLOPEN, 1, [Define if dlopen is available])])
736 # Some library-finding code we stole from Tcl.
737 #--------------------------------------------------------------------
738 # Check for the existence of the -lsocket and -lnsl libraries.
739 # The order here is important, so that they end up in the right
740 # order in the command line generated by make. Here are some
741 # special considerations:
742 # 1. Use "connect" and "accept" to check for -lsocket, and
743 # "gethostbyname" to check for -lnsl.
744 # 2. Use each function name only once: can't redo a check because
745 # autoconf caches the results of the last check and won't redo it.
746 # 3. Use -lnsl and -lsocket only if they supply procedures that
747 # aren't already present in the normal libraries. This is because
748 # IRIX 5.2 has libraries, but they aren't needed and they're
749 # bogus: they goof up name resolution if used.
750 # 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
751 # To get around this problem, check for both libraries together
752 # if -lsocket doesn't work by itself.
753 #--------------------------------------------------------------------
755 AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets,
758 unset ac_cv_func_connect
759 AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1)
760 if test "$gcj_checkSocket" = 1; then
761 unset ac_cv_func_connect
762 AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket",
765 if test "$gcj_checkBoth" = 1; then
767 LIBS="$LIBS -lsocket -lnsl"
768 unset ac_cv_func_accept
769 AC_CHECK_FUNC(accept,
771 gcj_cv_lib_sockets="-lsocket -lnsl"])
772 unset ac_cv_func_accept
775 unset ac_cv_func_gethostbyname
777 LIBS="$LIBS $gcj_cv_lib_sockets"
778 AC_CHECK_FUNC(gethostbyname, ,
779 [AC_CHECK_LIB(nsl, main,
780 [gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])])
781 unset ac_cv_func_gethostbyname
784 SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets"
786 if test "$with_system_zlib" = yes; then
787 AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=)
790 # Test for Gtk stuff, if asked for.
791 if test "$use_gtk_awt" = yes; then
792 AM_PATH_GTK_2_0(2.0.0,,exit 1)
793 AM_PATH_GLIB_2_0(2.0.0,,exit 1,gthread)
794 dnl XXX Fix me when libart.m4 has the compile test fixed!
796 AM_PATH_LIBART(2.1.0,,exit 1)
799 # On Solaris, and maybe other architectures, the Boehm collector
801 if test "$GC" = boehm; then
802 AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl")
806 if test -z "${with_multisubdir}"; then
810 builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`
814 # Which gcj do we use?
816 built_gcc_dir="`cd ${builddotdot}/../../gcc && ${PWDCMD-pwd}`"
817 if test -n "${with_cross_host}"; then
818 # We are being configured with a cross compiler. We can't
819 # use ac_exeext, because that is for the target platform.
822 case "${with_cross_host}" in
824 cross_host_exeext=.exe
827 if test -x "${built_gcc_dir}/gcj${cross_host_exeext}"; then
828 if test x"$build_alias" = x"$with_cross_host"; then
829 # Ordinary cross (host!=target and host=build)
832 # Canadian cross (host!=target and host!=build)
839 # We are being configured with a native or crossed-native compiler
840 if test -x "${built_gcc_dir}/gcj${ac_exeext}"; then
841 if test x"$build" = x"$host"; then
842 # True native build (host=target and host=build)
845 # Crossed-native build (host=target and host!=build)
852 case "${which_gcj}" in
854 GCJ="$built_gcc_dir/gcj -B`${PWDCMD-pwd}`/ -B$built_gcc_dir/"
857 # See the comment in Makefile.am about CANADIAN being a misnomer
860 if test "x${with_newlib}" = "xyes"; then
861 # FIXME (comment): Why is this needed?
863 GCJ="${target_alias}-gcj"
865 GCJ="${target_alias}-gcj -B`${PWDCMD-pwd}`/"
869 # See the comment in Makefile.am about CANADIAN being a misnomer
872 GCJ="gcj -B`${PWDCMD-pwd}`/"
876 # Create it, so that compile/link tests don't fail
877 test -f libgcj.spec || touch libgcj.spec
879 # We must search the source tree for java.lang, since we still don't
880 # have libgcj.jar nor java/lang/*.class
881 GCJ_SAVE_CPPFLAGS=$CPPFLAGS
882 CPPFLAGS="$CPPFLAGS -I`${PWDCMD-pwd}` -I`cd $srcdir && ${PWDCMD-pwd}`"
884 # Since some classes depend on this one, we need its source available
885 # before we can do any GCJ compilation test :-(
886 if test ! -f gnu/classpath/Configuration.java; then
887 test -d gnu || mkdir gnu
888 test -d gnu/classpath || mkdir gnu/classpath
889 sed -e 's,@LIBGCJDEBUG@,$LIBGCJDEBUG,' \
890 -e 's,@TOOLKIT@,$TOOLKIT,' \
891 < $srcdir/gnu/classpath/Configuration.java.in \
892 > gnu/classpath/Configuration.java
893 # We do not want to redirect the output of the grep below to /dev/null,
894 # but we add /dev/null to the input list so that grep will print the
895 # filename of Configuration.java in case it finds any matches.
896 if grep @ gnu/classpath/Configuration.java /dev/null; then
897 AC_MSG_ERROR([configure.in is missing the substitutions above])
903 CPPFLAGS=$GCJ_SAVE_CPPFLAGS
905 AC_COMPILE_CHECK_SIZEOF(void *)
911 if test -z "$ZLIBSPEC"; then
912 # Use zlib from the GCC tree.
913 ZINCS='-I$(top_srcdir)/../zlib'
914 ZLIBS=../zlib/libzgcj_convenience.la
917 SYS_ZLIBS="$ZLIBSPEC"
923 AC_SUBST(CHECKREFSPEC)
924 AC_SUBST(EXCEPTIONSPEC)
927 AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
928 AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
929 AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
930 AM_CONDITIONAL(NEEDS_DATA_START, test "$NEEDS_DATA_START" = yes && test "$NATIVE" = yes)
931 AC_SUBST(GCC_UNWIND_INCLUDE)
933 if test -n "$with_cross_host" &&
934 test x"$with_cross_host" != x"no"; then
935 toolexecdir='$(exec_prefix)/$(target_alias)'
936 toolexecmainlibdir='$(toolexecdir)/lib'
938 toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
939 toolexecmainlibdir='$(libdir)'
941 multi_os_directory=`$CC -print-multi-os-directory`
942 case $multi_os_directory in
943 .) toolexeclibdir=$toolexecmainlibdir ;; # Avoid trailing /.
944 *) toolexeclibdir=$toolexecmainlibdir/$multi_os_directory ;;
946 AC_SUBST(toolexecdir)
947 AC_SUBST(toolexecmainlibdir)
948 AC_SUBST(toolexeclibdir)
950 # Determine gcj version number.
952 gcjversion=`$GCJ -v 2>&1 | sed -n 's/^.*version \([^ ]*\).*$/\1/p'`
954 GCJVERSION=$gcjversion
956 AC_DEFINE_UNQUOTED(GCJVERSION, "$GCJVERSION", [Short GCJ version ID])
958 dnl We check for sys/filio.h because Solaris 2.5 defines FIONREAD there.
959 dnl On that system, sys/ioctl.h will not include sys/filio.h unless
960 dnl BSD_COMP is defined; just including sys/filio.h is simpler.
961 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)
962 dnl We avoid AC_HEADER_DIRENT since we really only care about dirent.h
963 dnl for now. If you change this, you also must update natFile.cc.
964 AC_CHECK_HEADERS(dirent.h)
965 AC_CHECK_HEADERS(inttypes.h, [
966 AC_DEFINE(HAVE_INTTYPES_H, 1, [Define if <inttypes.h> is available])
967 AC_DEFINE(JV_HAVE_INTTYPES_H, 1, [Define if <inttypes.h> is available])
971 AC_CHECK_TYPE([ssize_t], [int])
973 AC_MSG_CHECKING([for in_addr_t])
974 AC_TRY_COMPILE([#include <sys/types.h>
979 #if HAVE_NETINET_IN_H
980 #include <netinet/in.h>
981 #endif], [in_addr_t foo;],
982 [AC_DEFINE([HAVE_IN_ADDR_T])
986 AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h])
987 AC_TRY_COMPILE([#include <netinet/in.h>], [struct ip_mreq mreq;],
988 [AC_DEFINE(HAVE_STRUCT_IP_MREQ)
992 AC_MSG_CHECKING([whether struct ipv6_mreq is in netinet/in.h])
993 AC_TRY_COMPILE([#include <netinet/in.h>], [struct ipv6_mreq mreq6;],
994 [AC_DEFINE(HAVE_STRUCT_IPV6_MREQ)
998 AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h])
999 AC_TRY_COMPILE([#include <netinet/in.h>], [struct sockaddr_in6 addr6;],
1000 [AC_DEFINE(HAVE_INET6)
1001 AC_MSG_RESULT(yes)],
1002 [AC_MSG_RESULT(no)])
1004 AC_MSG_CHECKING([for socklen_t in sys/socket.h])
1005 AC_TRY_COMPILE([#define _POSIX_PII_SOCKET
1006 #include <sys/types.h>
1007 #include <sys/socket.h>], [socklen_t x = 5;],
1008 [AC_DEFINE(HAVE_SOCKLEN_T)
1009 AC_MSG_RESULT(yes)],
1010 [AC_MSG_RESULT(no)])
1012 AC_MSG_CHECKING([for tm_gmtoff in struct tm])
1013 AC_TRY_COMPILE([#include <time.h>], [struct tm tim; tim.tm_gmtoff = 0;],
1014 [AC_DEFINE(STRUCT_TM_HAS_GMTOFF)
1015 AC_MSG_RESULT(yes)],
1017 AC_MSG_CHECKING([for global timezone variable])
1018 dnl FIXME: we don't want a link check here because that won't work
1019 dnl when cross-compiling. So instead we make an assumption that
1020 dnl the header file will mention timezone if it exists.
1021 dnl Don't find the win32 function timezone
1022 AC_TRY_COMPILE([#include <time.h>], [void i(){long z2 = 2*timezone;}],
1023 [AC_DEFINE(HAVE_TIMEZONE)
1024 AC_MSG_RESULT(yes)],
1026 AC_MSG_CHECKING([for global _timezone variable])
1027 dnl FIXME: As above, don't want link check
1028 AC_TRY_COMPILE([#include <time.h>], [long z2 = _timezone;],
1029 [AC_DEFINE(HAVE_UNDERSCORE_TIMEZONE)
1030 AC_MSG_RESULT(yes)],
1031 [AC_MSG_RESULT(no)])])])
1036 AC_CHECK_PROGS(PERL, perl, false)
1042 SIGNAL_HANDLER=include/i386-signal.h
1044 sparc*-sun-solaris*)
1045 SIGNAL_HANDLER=include/sparc-signal.h
1048 # SYSDEP_SOURCES=sysdep/ia64.c
1049 # test -d sysdep || mkdir sysdep
1052 SIGNAL_HANDLER=include/dwarf2-signal.h
1055 SIGNAL_HANDLER=include/powerpc-signal.h
1058 SIGNAL_HANDLER=include/dwarf2-signal.h
1061 SIGNAL_HANDLER=include/s390-signal.h
1064 SIGNAL_HANDLER=include/x86_64-signal.h
1067 SIGNAL_HANDLER=include/dwarf2-signal.h
1069 sh-*-linux* | sh[[34]]*-*-linux*)
1070 SIGNAL_HANDLER=include/dwarf2-signal.h
1073 SIGNAL_HANDLER=include/win32-signal.h
1076 SIGNAL_HANDLER=include/default-signal.h
1080 # If we're using sjlj exceptions, forget what we just learned.
1081 if test "$enable_sjlj_exceptions" = yes; then
1082 SIGNAL_HANDLER=include/default-signal.h
1085 # Define here any compiler flags that you need in order to make backtrace() work.
1089 BACKTRACESPEC=-fno-omit-frame-pointer
1092 AC_SUBST(BACKTRACESPEC)
1094 AC_SUBST(SYSDEP_SOURCES)
1096 AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h)
1098 if test "${multilib}" = "yes"; then
1099 multilib_arg="--enable-multilib"
1106 here=`${PWDCMD-pwd}`
1109 # We get this from the environment.
1112 AC_OUTPUT(Makefile libgcj.pc libgcj.spec libgcj-test.spec gnu/classpath/Configuration.java gcj/Makefile include/Makefile testsuite/Makefile,
1113 [# Only add multilib support code if we just rebuilt top-level Makefile.
1114 case " $CONFIG_FILES " in
1116 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
1117 ac_file=Makefile . ${libgcj_basedir}/../config-ml.in
1121 # Make subdirectories and `.d' files. Look in both srcdir and
1122 # builddir for the .java files.
1125 ( (cd $srcdir && find . \( -name '*.java' -o -name '*.cc' -o -name '*.c' \) -print) ;
1126 find . \( -name '*.java' -o -name '*.cc' -o -name '*.c' \) -print) | \
1127 fgrep -v testsuite | \
1128 sed -e 's/\.java/.d/'\;'s/\.cc/.d/'\;'s/\.c/.d/' | \
1130 echo "include $f" >> deps.mk
1133 d=`echo $f | sed -e 's,/[^/]*$,,'`
1135 if test ! -d $d; then
1136 $libgcj_basedir/../mkinstalldirs $d
1145 with_multisubdir=${with_multisubdir}
1146 ac_configure_args="${multilib_arg} ${ac_configure_args}"
1147 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
1148 libgcj_basedir=${libgcj_basedir}
1151 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"