1 dnl Process this with autoconf to create configure
2 AC_INIT(java/lang/System.java)
4 dnl Can't be done in LIBGCJ_CONFIGURE because that confuses automake.
9 dnl We use these options to decide which functions to include.
10 AC_ARG_WITH(target-subdir,
11 [ --with-target-subdir=SUBDIR
12 configuring in a subdirectory])
13 AC_ARG_WITH(cross-host,
14 [ --with-cross-host=HOST configuring with a cross compiler])
18 AM_CONFIG_HEADER(include/config.h)
22 if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
29 dnl The -no-testsuite modules omit the test subdir.
30 AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
32 dnl See whether the user prefers size or speed for Character.
33 dnl The default is size.
34 AC_ARG_ENABLE(fast-character,
35 [ --enable-fast-character prefer speed over size for Character],
37 , AC_DEFINE(COMPACT_CHARACTER))
39 dnl Should the runtime set system properties by examining the
40 dnl environment variable GCJ_PROPERTIES?
41 AC_ARG_ENABLE(getenv-properties,
42 [ --disable-getenv-properties
43 don't set system properties from GCJ_PROPERTIES])
45 dnl Whether GCJ_PROPERTIES is used depends on the target.
46 if test -n "$enable_getenv_properties"; then
47 enable_getenv_properties=${enable_getenv_properties_default-yes}
49 if test "$enable_getenv_properties" = no; then
50 AC_DEFINE(DISABLE_GETENV_PROPERTIES)
53 dnl See if the user has requested runtime debugging.
54 AC_ARG_ENABLE(libgcj-debug,
55 [ --enable-libgcj-debug enable runtime debugging code],
56 if test "$enable_libgcj_debug" = yes; then
60 dnl See if the user has the enterpreter included.
61 AC_ARG_ENABLE(interpreter,
62 [ --enable-interpreter enable interpreter],
63 if test "$enable_interpreter" = yes; then
64 AC_DEFINE(INTERPRETER)
67 dnl See if the user wants to disable java.net. This is the mildly
68 dnl ugly way that we admit that target-side configuration sucks.
69 AC_ARG_ENABLE(java-net,
70 [ --disable-java-net disable java.net])
72 dnl Whether java.net is built by default can depend on the target.
73 if test -n "$enable_java_net"; then
74 enable_java_net=${enable_java_net_default-yes}
76 if test "$enable_java_net" = no; then
77 AC_DEFINE(DISABLE_JAVA_NET)
80 dnl If the target is an eCos system, use the appropriate eCos
82 dnl FIXME: this should not be a local option but a global target
83 dnl system; at present there is no eCos target.
86 [ --with-ecos enable runtime eCos target support],
87 TARGET_ECOS="$with_ecos"
90 case "$TARGET_ECOS" in
92 FILE_DESCRIPTOR=natFileDescriptorPosix.cc
93 PROCESS=${PROCESS-Posix}
96 FILE_DESCRIPTOR=natFileDescriptorEcos.cc
102 AC_EGREP_HEADER(uint32_t, stdint.h, AC_DEFINE(HAVE_INT32_DEFINED))
103 AC_EGREP_HEADER(uint32_t, inttypes.h, AC_DEFINE(HAVE_INT32_DEFINED))
104 AC_EGREP_HEADER(u_int32_t, sys/types.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
105 AC_EGREP_HEADER(u_int32_t, sys/config.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
108 dnl These may not be defined in a non-ANS conformant embedded system.
109 dnl FIXME: Should these case a runtime exception in that case?
110 AC_EGREP_HEADER(mktime, time.h, AC_DEFINE(HAVE_MKTIME))
111 AC_EGREP_HEADER(localtime, time.h, AC_DEFINE(HAVE_LOCALTIME))
113 dnl Create the subdirectory for natFileDescriptor.cc, or the attempt
114 dnl to create the link will fail.
115 test -d java || mkdir java
116 test -d java/io || mkdir java/io
117 AC_LINK_FILES(java/io/$FILE_DESCRIPTOR, java/io/natFileDescriptor.cc)
119 dnl Likewise for ConcreteProcess.java and natConcreteProcess.cc.
120 test -d java/lang || mkdir java/lang
121 AC_LINK_FILES(java/lang/${PROCESS}Process.java, java/lang/ConcreteProcess.java)
122 AC_LINK_FILES(java/lang/nat${PROCESS}Process.cc, java/lang/natConcreteProcess.cc)
127 AC_ARG_WITH(system-zlib,
128 [ --with-system-zlib use installed libz])
132 dnl FIXME: this should be _libs on some hosts.
135 dnl Allow the GC to be disabled. Can be useful when debugging.
136 AC_MSG_CHECKING([for garbage collector to use])
137 AC_ARG_ENABLE(java-gc,
138 changequote(<<,>>)dnl
139 << --enable-java-gc=TYPE choose garbage collector [boehm]>>,
151 GCDEPS='$(top_builddir)/../boehm-gc/libgcjgc.la'
152 # We include the path to the boehm-gc build directory.
153 # See Makefile.am to understand why.
154 GCLIBS="$GCDEPS -L\$(here)/../boehm-gc/$libsubdir"
155 GCINCS='-I$(top_srcdir)/../boehm-gc -I$(top_builddir)/../boehm-gc'
157 dnl We also want to pick up some cpp flags required when including
158 dnl boehm-config.h. Yuck.
159 GCINCS="$GCINCS `cat ../boehm-gc/boehm-cflags`"
162 dnl The POSIX thread support needs to know this.
163 AC_DEFINE(HAVE_BOEHM_GC)
171 AC_MSG_ERROR(unrecognized collector \"$GC\")
179 AC_LINK_FILES(include/$GCHDR, include/java-gc.h)
182 dnl Note that this code is kept in sync with similar code in gcc/configure.in.
183 dnl In particular both packages must make the same decision about which
184 dnl thread package to use.
185 AC_MSG_CHECKING([for threads package to use])
186 AC_ARG_ENABLE(threads, [ --enable-threads=TYPE choose threading package],
188 dnl FIXME: figure out native threads to use here.
191 if test "$THREADS" = yes; then
197 # FIXME: this isn't correct in all cases.
204 # FIXME: for now, choose POSIX, because we implement that.
205 # Later, choose irix threads.
209 # FIXME: for now, choose POSIX, because we implement that.
210 # Later, choose solaris threads.
228 AC_DEFINE(LINUX_THREADS)
232 decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
233 AC_MSG_ERROR(thread package $THREADS not yet supported)
236 AC_MSG_ERROR($THREADS is an unknown thread package)
239 AC_MSG_RESULT($THREADS)
251 THREADOBJS=posix-threads.lo
252 THREADH=posix-threads.h
253 # MIT pthreads doesn't seem to have the mutexattr functions.
254 # But for now we don't check for it. We just assume you aren't
255 # using MIT pthreads.
256 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
260 THREADOBJS=no-threads.lo
264 AC_LINK_FILES(include/$THREADH, include/java-threads.h)
271 AM_CONDITIONAL(USING_GCC, test "$GCC" = yes)
277 # Find eh-common.h and support headers. If we're in the tree with
278 # gcc, then look there. Otherwise look in compat-include. If all else
279 # fails, just hope the user has set things up somehow.
280 if test -r $srcdir/../gcc/eh-common.h; then
281 EH_COMMON_INCLUDE='-I$(top_srcdir)/../gcc -I$(top_srcdir)/../include'
283 if test -d $srcdir/../compat-include; then
284 EH_COMMON_INCLUDE='-I$(top_srcdir)/../compat-include'
290 if test -n "${with_cross_host}"; then
291 # We are being configured with a cross compiler. AC_REPLACE_FUNCS
292 # may not work correctly, because the compiler may not be able to
295 # We assume newlib. This lets us hard-code the functions we know
297 AC_DEFINE(HAVE_MEMMOVE)
298 AC_DEFINE(HAVE_MEMCPY)
299 AC_DEFINE(HAVE_STRERROR)
300 AC_DEFINE(HAVE_GMTIME_R)
301 AC_DEFINE(HAVE_LOCALTIME_R)
302 dnl This is only for POSIX threads.
303 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
304 dnl We also assume we are using gcc, which provides alloca.
305 AC_DEFINE(HAVE_ALLOCA)
309 # If Canadian cross, then don't pick up tools from the build
311 if test "$build" != "$with_cross_host"; then
314 GCJ="${target_alias}-gcj"
320 AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep)
321 AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r)
322 AC_CHECK_FUNCS(access stat mkdir rename rmdir unlink realpath)
323 AC_CHECK_FUNCS(inet_aton inet_addr, break)
324 AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
326 AC_CHECK_FUNCS(gethostbyname_r, [
327 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
328 # There are two different kinds of gethostbyname_r.
329 # We look for the one that returns `int'.
330 # Hopefully this check is robust enough.
331 AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [
332 AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT)])
335 *" -D_REENTRANT "*) ;;
337 dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT
338 AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT],
339 [libjava_cv_gethostbyname_r_needs_reentrant],
342 AC_TRY_COMPILE([#include <netdb.h>],
343 [gethostbyname_r("", 0, 0);],
344 [libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl
345 CPPFLAGS_SAVE="$CPPFLAGS"
346 CPPFLAGS="$CPPFLAGS -D_REENTRANT"
347 AC_TRY_COMPILE([#include <netdb.h>], [gethostbyname_r("", 0, 0);],
348 [libjava_cv_gethostbyname_r_needs_reentrant=yes],
349 [libjava_cv_gethostbyname_r_needs_reentrant=fail])
350 CPPFLAGS="$CPPFLAGS_SAVE"
354 if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then
355 AC_DEFINE(GETHOSTBYNAME_R_NEEDS_REENTRANT, 1, [Define if gethostbyname_r is only declared if _REENTRANT is defined])
360 AC_CACHE_CHECK([for struct hostent_data],
361 [libjava_cv_struct_hostent_data], [dnl
363 #if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
364 # define _REENTRANT 1
366 #include <netdb.h>], [struct hostent_data data;],
367 [libjava_cv_struct_hostent_data=yes],
368 [libjava_cv_struct_hostent_data=no])])
369 if test "x$libjava_cv_struct_hostent_data" = xyes; then
370 AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1,
371 [Define if struct hostent_data is defined in netdb.h])
375 AC_CHECK_FUNCS(gethostbyaddr_r, [
376 AC_DEFINE(HAVE_GETHOSTBYADDR_R)
377 # There are two different kinds of gethostbyaddr_r.
378 # We look for the one that returns `int'.
379 # Hopefully this check is robust enough.
380 AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [
381 AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT)])])
383 AC_CHECK_FUNCS(gethostname, [
384 AC_DEFINE(HAVE_GETHOSTNAME)
385 AC_EGREP_HEADER(gethostname, unistd.h, [
386 AC_DEFINE(HAVE_GETHOSTNAME_DECL)])])
388 # Look for these functions in the thread library, but only bother
389 # if using POSIX threads.
390 if test "$THREADS" = posix; then
392 LIBS="$LIBS $THREADLIBS"
393 # Some POSIX thread systems don't have pthread_mutexattr_settype.
395 AC_CHECK_FUNCS(pthread_mutexattr_settype pthread_mutexattr_setkind_np)
397 # Look for sched_yield. Up to Solaris 2.6, it is in libposix4, since
398 # Solaris 7 the name librt is preferred.
399 AC_CHECK_FUNCS(sched_yield, , [
400 AC_CHECK_LIB(rt, sched_yield, [
401 AC_DEFINE(HAVE_SCHED_YIELD)
402 THREADLIBS="$THREADLIBS -lrt"
403 THREADSPEC="$THREADSPEC -lrt"], [
404 AC_CHECK_LIB(posix4, sched_yield, [
405 AC_DEFINE(HAVE_SCHED_YIELD)
406 THREADLIBS="$THREADLIBS -lposix4"
407 THREADSPEC="$THREADSPEC -lposix4"])])])
410 # We can save a little space at runtime if the mutex has m_count
411 # or __m_count. This is a nice hack for Linux.
412 AC_TRY_COMPILE([#include <pthread.h>], [
413 extern pthread_mutex_t *mutex; int q = mutex->m_count;
414 ], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT), [
415 AC_TRY_COMPILE([#include <pthread.h>], [
416 extern pthread_mutex_t *mutex; int q = mutex->__m_count;
417 ], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT))])
420 # We require a way to get the time.
422 AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes)
423 if test "$time_found" = no; then
424 AC_MSG_ERROR([no function found to get the time])
427 AC_CHECK_FUNCS(memmove)
431 AC_CHECK_FUNCS(memcpy, memcpy_found=yes)
432 if test "$memcpy_found" = no; then
433 AC_MSG_ERROR([memcpy is required])
436 # Some library-finding code we stole from Tcl.
437 #--------------------------------------------------------------------
438 # Check for the existence of the -lsocket and -lnsl libraries.
439 # The order here is important, so that they end up in the right
440 # order in the command line generated by make. Here are some
441 # special considerations:
442 # 1. Use "connect" and "accept" to check for -lsocket, and
443 # "gethostbyname" to check for -lnsl.
444 # 2. Use each function name only once: can't redo a check because
445 # autoconf caches the results of the last check and won't redo it.
446 # 3. Use -lnsl and -lsocket only if they supply procedures that
447 # aren't already present in the normal libraries. This is because
448 # IRIX 5.2 has libraries, but they aren't needed and they're
449 # bogus: they goof up name resolution if used.
450 # 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
451 # To get around this problem, check for both libraries together
452 # if -lsocket doesn't work by itself.
453 #--------------------------------------------------------------------
455 AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets,
458 unset ac_cv_func_connect
459 AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1)
460 if test "$gcj_checkSocket" = 1; then
461 unset ac_cv_func_connect
462 AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket",
465 if test "$gcj_checkBoth" = 1; then
467 LIBS="$LIBS -lsocket -lnsl"
468 unset ac_cv_func_accept
469 AC_CHECK_FUNC(accept,
471 gcj_cv_lib_sockets="-lsocket -lnsl"])
472 unset ac_cv_func_accept
475 unset ac_cv_func_gethostbyname
477 LIBS="$LIBS $gcj_cv_lib_sockets"
478 AC_CHECK_FUNC(gethostbyname, ,
479 [AC_CHECK_LIB(nsl, main,
480 [gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])])
481 unset ac_cv_func_gethostbyname
484 SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets"
486 if test "$with_system_zlib" = yes; then
487 AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=-lzgcj)
492 # On Solaris, and maybe other architectures, the Boehm collector
494 if test "$GC" = boehm; then
495 AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl")
498 if test -d "$libgcj_basedir/../gcc/java"; then
510 if test "x$ZLIBSPEC" = "x-lzgcj"; then
511 # We include the path to the zlib build directory.
512 # See Makefile.am to understand why.
513 ZDEPS='$(top_builddir)/../zlib/libzgcj.la'
514 ZLIBS="$ZDEPS -L\$(here)/../zlib/$libsubdir"
515 ZINCS='-I$(top_srcdir)/../zlib'
524 AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
525 AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
526 AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
527 AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
528 AC_SUBST(EH_COMMON_INCLUDE)
530 # Determine gcj version number.
531 if test "$GCJ" = ""; then
532 if test -z "${with_multisubdir}"; then
536 builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`
539 dir="`cd ${builddotdot}/../../gcc && pwd`"
540 GCJ="$dir/gcj -B$dir/"
543 gcjvers="`$GCJ -v 2>&1 | sed -n 's/^.*version \([^ ]*\).*$/\1/p'`"
545 AC_DEFINE_UNQUOTED(GCJVERSION, "$gcjvers")
547 # See if gcj supports -fuse-divide-subroutine. gcc 2.95 does not, and
548 # we want to continue to support that version.
549 AC_MSG_CHECKING([whether gcj supports -fuse-divide-subroutine])
550 cat > conftest.java << 'END'
551 public class conftest { }
554 $GCJ -classpath $srcdir -fuse-divide-subroutine -fsyntax-only \
555 conftest.java > /dev/null 2>&1 \
558 if test "$use_fuse" = no; then
561 AC_MSG_RESULT($use_fuse)
563 AC_SUBST(AM_RUNTESTFLAGS)
565 dnl We check for sys/filio.h because Solaris 2.5 defines FIONREAD there.
566 dnl On that system, sys/ioctl.h will not include sys/filio.h unless
567 dnl BSD_COMP is defined; just including sys/filio.h is simpler.
568 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)
569 dnl We avoid AC_HEADER_DIRENT since we really only care about dirent.h
570 dnl for now. If you change this, you also must update natFile.cc.
571 AC_CHECK_HEADERS(dirent.h)
573 AC_CHECK_TYPE([ssize_t], [int])
575 AC_MSG_CHECKING([for in_addr_t])
576 AC_TRY_COMPILE([#include <sys/types.h>
581 #if HAVE_NETINET_IN_H
582 #include <netinet/in.h>
583 #endif], [in_addr_t foo;],
584 [AC_DEFINE([HAVE_IN_ADDR_T])
588 AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h])
589 AC_TRY_COMPILE([#include <netinet/in.h>], [struct ip_mreq mreq;],
590 [AC_DEFINE(HAVE_STRUCT_IP_MREQ)
594 AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h])
595 AC_TRY_COMPILE([#include <netinet/in.h>], [struct sockaddr_in6 addr6;],
596 [AC_DEFINE(HAVE_INET6)
600 AC_MSG_CHECKING([for socklen_t in sys/socket.h])
601 AC_TRY_COMPILE([#include <sys/socket.h>], [socklen_t x = 5;],
602 [AC_DEFINE(HAVE_SOCKLEN_T)
606 AC_MSG_CHECKING([for tm_gmtoff in struct tm])
607 AC_TRY_COMPILE([#include <time.h>], [struct tm tim; tim.tm_gmtoff = 0;],
608 [AC_DEFINE(STRUCT_TM_HAS_GMTOFF)
611 AC_MSG_CHECKING([for global timezone variable])
612 dnl FIXME: we don't want a link check here because that won't work
613 dnl when cross-compiling. So instead we make an assumption that
614 dnl the header file will mention timezone if it exists.
615 AC_TRY_COMPILE([#include <time.h>], [long z2 = timezone;],
616 [AC_DEFINE(HAVE_TIMEZONE)
618 [AC_MSG_RESULT(no)])])
622 AC_CHECK_PROGS(PERL, perl, false)
626 SIGNAL_HANDLER=include/i386-signal.h
629 SIGNAL_HANDLER=include/sparc-signal.h
632 SIGNAL_HANDLER=include/default-signal.h
636 AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h)
638 if test "${multilib}" = "yes"; then
639 multilib_arg="--enable-multilib"
647 AC_OUTPUT(Makefile libgcj.spec gcj/Makefile include/Makefile testsuite/Makefile,
648 [if test -n "$CONFIG_FILES"; then
649 ac_file=Makefile . ${libgcj_basedir}/../config-ml.in
654 with_multisubdir=${with_multisubdir}
655 ac_configure_args="${multilib_arg} ${ac_configure_args}"
656 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
657 libgcj_basedir=${libgcj_basedir}