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 $srcdir/testsuite)
32 dnl See whether the user prefers size or speed for Character.
33 dnl The default is size.
34 AC_ARG_ENABLE(fast-character,
35 [ --enable-fast-character prefer speed over size for Character],
37 , AC_DEFINE(COMPACT_CHARACTER))
39 dnl See if the user has requested runtime debugging.
40 AC_ARG_ENABLE(libgcj-debug,
41 [ --enable-libgcj-debug enable runtime debugging code],
42 if test "$enable_libgcj_debug" = yes; then
46 dnl See if the user has the enterpreter included.
47 AC_ARG_ENABLE(interpreter,
48 [ --enable-interpreter enable interpreter],
49 if test "$enable_interpreter" = yes; then
50 AC_DEFINE(INTERPRETER)
53 dnl See if the user wants to disable java.net. This is the mildly
54 dnl ugly way that we admit that target-side configuration sucks.
55 AC_ARG_ENABLE(java-net,
56 [ --disable-java-net disable java.net])
58 dnl Whether java.net is built by default can depend on the target.
59 if test -n "$enable_java_net"; then
60 enable_java_net=${enable_java_net_default-yes}
62 if test "$enable_java_net" != yes; then
63 AC_DEFINE(DISABLE_JAVA_NET)
66 dnl If the target is an eCos system, use the appropriate eCos
68 dnl FIXME: this should not be a local option but a global target
69 dnl system; at present there is no eCos target.
72 [ --with-ecos enable runtime eCos target support],
73 TARGET_ECOS="$with_ecos"
76 case "$TARGET_ECOS" in
78 FILE_DESCRIPTOR=natFileDescriptorPosix.cc
79 PROCESS=${PROCESS-Posix}
82 FILE_DESCRIPTOR=natFileDescriptorEcos.cc
88 AC_EGREP_HEADER(uint32_t, stdint.h, AC_DEFINE(HAVE_INT32_DEFINED))
89 AC_EGREP_HEADER(uint32_t, inttypes.h, AC_DEFINE(HAVE_INT32_DEFINED))
90 AC_EGREP_HEADER(u_int32_t, sys/types.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
91 AC_EGREP_HEADER(u_int32_t, sys/config.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
94 dnl These may not be defined in a non-ANS conformant embedded system.
95 dnl FIXME: Should these case a runtime exception in that case?
96 AC_EGREP_HEADER(mktime, time.h, AC_DEFINE(HAVE_MKTIME))
97 AC_EGREP_HEADER(localtime, time.h, AC_DEFINE(HAVE_LOCALTIME))
99 dnl Create the subdirectory for natFileDescriptor.cc, or the attempt
100 dnl to create the link will fail.
101 test -d java || mkdir java
102 test -d java/io || mkdir java/io
103 AC_LINK_FILES(java/io/$FILE_DESCRIPTOR, java/io/natFileDescriptor.cc)
105 dnl Likewise for ConcreteProcess.java and natConcreteProcess.cc.
106 test -d java/lang || mkdir java/lang
107 AC_LINK_FILES(java/lang/${PROCESS}Process.java, java/lang/ConcreteProcess.java)
108 AC_LINK_FILES(java/lang/nat${PROCESS}Process.cc, java/lang/natConcreteProcess.cc)
113 AC_ARG_WITH(system-zlib,
114 [ --with-system-zlib use installed libz])
118 dnl FIXME: this should be _libs on some hosts.
121 dnl Allow the GC to be disabled. Can be useful when debugging.
122 AC_MSG_CHECKING([for garbage collector to use])
123 AC_ARG_ENABLE(java-gc,
124 changequote(<<,>>)dnl
125 << --enable-java-gc=TYPE choose garbage collector [boehm]>>,
137 GCDEPS='$(top_builddir)/../boehm-gc/libgcjgc.la'
138 # We include the path to the boehm-gc build directory.
139 # See Makefile.am to understand why.
140 GCLIBS="$GCDEPS -L\$(here)/../boehm-gc/$libsubdir"
141 GCINCS='-I$(top_srcdir)/../boehm-gc -I$(top_builddir)/../boehm-gc'
143 dnl We also want to pick up some cpp flags required when including
144 dnl boehm-config.h. Yuck.
145 GCINCS="$GCINCS `cat ../boehm-gc/boehm-cflags`"
148 dnl The POSIX thread support needs to know this.
149 AC_DEFINE(HAVE_BOEHM_GC)
157 AC_MSG_ERROR(unrecognized collector \"$GC\")
165 AC_LINK_FILES(include/$GCHDR, include/java-gc.h)
168 dnl Note that this code is kept in sync with similar code in gcc/configure.in.
169 dnl In particular both packages must make the same decision about which
170 dnl thread package to use.
171 AC_MSG_CHECKING([for threads package to use])
172 AC_ARG_ENABLE(threads, [ --enable-threads=TYPE choose threading package],
174 dnl FIXME: figure out native threads to use here.
177 if test "$THREADS" = yes; then
183 # FIXME: this isn't correct in all cases.
190 # FIXME: for now, choose POSIX, because we implement that.
191 # Later, choose irix threads.
195 # FIXME: for now, choose POSIX, because we implement that.
196 # Later, choose solaris threads.
214 AC_DEFINE(LINUX_THREADS)
220 decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
221 AC_MSG_ERROR(thread package $THREADS not yet supported)
224 AC_MSG_ERROR($THREADS is an unknown thread package)
227 AC_MSG_RESULT($THREADS)
239 THREADOBJS=posix-threads.lo
240 THREADH=posix-threads.h
241 # MIT pthreads doesn't seem to have the mutexattr functions.
242 # But for now we don't check for it. We just assume you aren't
243 # using MIT pthreads.
244 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
248 THREADDEPS='$(top_builddir)/../qthreads/libgcjcoop.la'
249 # We include the path to the qthreads build directory.
250 # See Makefile.am to understand why.
251 THREADLIBS="$THREADDEPS -L\$(here)/../qthreads/$libsubdir"
252 THREADSPEC='-lgcjcoop'
253 THREADOBJS=quick-threads.lo
254 THREADINCS='-I$(top_srcdir)/../qthreads'
255 THREADH=quick-threads.h
259 THREADOBJS=no-threads.lo
263 AC_LINK_FILES(include/$THREADH, include/java-threads.h)
270 AM_CONDITIONAL(USING_GCC, test "$GCC" = yes)
275 # Find eh-common.h and support headers. If we're in the tree with
276 # gcc, then look there. Otherwise look in compat-include. If all else
277 # fails, just hope the user has set things up somehow.
278 if test -r $srcdir/../gcc/eh-common.h; then
279 EH_COMMON_INCLUDE='-I$(top_srcdir)/../gcc -I$(top_srcdir)/../include'
281 if test -d $srcdir/../compat-include; then
282 EH_COMMON_INCLUDE='-I$(top_srcdir)/../compat-include'
288 if test -n "${with_cross_host}"; then
289 # We are being configured with a cross compiler. AC_REPLACE_FUNCS
290 # may not work correctly, because the compiler may not be able to
293 # We assume newlib. This lets us hard-code the functions we know
295 AC_DEFINE(HAVE_MEMMOVE)
296 AC_DEFINE(HAVE_MEMCPY)
297 AC_DEFINE(HAVE_STRERROR)
298 AC_DEFINE(HAVE_GMTIME_R)
299 AC_DEFINE(HAVE_LOCALTIME_R)
300 dnl This is only for POSIX threads.
301 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
302 dnl We also assume we are using gcc, which provides alloca.
303 AC_DEFINE(HAVE_ALLOCA)
307 # If Canadian cross, then don't pick up tools from the build
309 if test "$build" != "$with_cross_host"; then
312 GCJ="${target_alias}/gcj"
317 AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep)
318 AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r)
319 AC_CHECK_FUNCS(access stat mkdir rename rmdir unlink realpath)
320 AC_CHECK_FUNCS(inet_aton inet_addr, break)
321 AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
323 AC_CHECK_FUNCS(gethostbyname_r, [
324 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
325 # There are two different kinds of gethostbyname_r.
326 # We look for the one that returns `int'.
327 # Hopefully this check is robust enough.
328 AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [
329 AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT)])
332 *" -D_REENTRANT "*) ;;
334 dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT
335 AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT],
336 [libjava_cv_gethostbyname_r_needs_reentrant],
339 AC_TRY_COMPILE([#include <netdb.h>],
340 [gethostbyname_r("", 0, 0);],
341 [libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl
342 CPPFLAGS_SAVE="$CPPFLAGS"
343 CPPFLAGS="$CPPFLAGS -D_REENTRANT"
344 AC_TRY_COMPILE([#include <netdb.h>], [gethostbyname_r("", 0, 0);],
345 [libjava_cv_gethostbyname_r_needs_reentrant=yes],
346 [libjava_cv_gethostbyname_r_needs_reentrant=fail])
347 CPPFLAGS="$CPPFLAGS_SAVE"
351 if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then
352 AC_DEFINE(GETHOSTBYNAME_R_NEEDS_REENTRANT, 1, [Define if gethostbyname_r is only declared if _REENTRANT is defined])
357 AC_CACHE_CHECK([for struct hostent_data],
358 [libjava_cv_struct_hostent_data], [dnl
360 #if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
361 # define _REENTRANT 1
363 #include <netdb.h>], [struct hostent_data data;],
364 [libjava_cv_struct_hostent_data=yes],
365 [libjava_cv_struct_hostent_data=no])])
366 if test "x$libjava_cv_struct_hostent_data" = xyes; then
367 AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1,
368 [Define if struct hostent_data is defined in netdb.h])
372 AC_CHECK_FUNCS(gethostbyaddr_r, [
373 AC_DEFINE(HAVE_GETHOSTBYADDR_R)
374 # There are two different kinds of gethostbyaddr_r.
375 # We look for the one that returns `int'.
376 # Hopefully this check is robust enough.
377 AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [
378 AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT)])])
380 AC_CHECK_FUNCS(gethostname, [
381 AC_DEFINE(HAVE_GETHOSTNAME)
382 AC_EGREP_HEADER(gethostname, unistd.h, [
383 AC_DEFINE(HAVE_GETHOSTNAME_DECL)])])
385 # Look for these functions in the thread library, but only bother
386 # if using POSIX threads.
387 if test "$THREADS" = posix; then
389 LIBS="$LIBS $THREADLIBS"
390 # Some POSIX thread systems don't have pthread_mutexattr_settype.
392 AC_CHECK_FUNCS(pthread_mutexattr_settype pthread_mutexattr_setkind_np)
394 # Look for sched_yield. Up to Solaris 2.6, it is in libposix4, since
395 # Solaris 7 the name librt is preferred.
396 AC_CHECK_FUNCS(sched_yield, , [
397 AC_CHECK_LIB(rt, sched_yield, [
398 AC_DEFINE(HAVE_SCHED_YIELD)
399 THREADLIBS="$THREADLIBS -lrt"
400 THREADSPEC="$THREADSPEC -lrt"], [
401 AC_CHECK_LIB(posix4, sched_yield, [
402 AC_DEFINE(HAVE_SCHED_YIELD)
403 THREADLIBS="$THREADLIBS -lposix4"
404 THREADSPEC="$THREADSPEC -lposix4"])])])
407 # We can save a little space at runtime if the mutex has m_count
408 # or __m_count. This is a nice hack for Linux.
409 AC_TRY_COMPILE([#include <pthread.h>], [
410 extern pthread_mutex_t *mutex; int q = mutex->m_count;
411 ], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT), [
412 AC_TRY_COMPILE([#include <pthread.h>], [
413 extern pthread_mutex_t *mutex; int q = mutex->__m_count;
414 ], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT))])
417 # We require a way to get the time.
419 AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes)
420 if test "$time_found" = no; then
421 AC_MSG_ERROR([no function found to get the time])
424 AC_CHECK_FUNCS(memmove)
428 AC_CHECK_FUNCS(memcpy, memcpy_found=yes)
429 if test "$memcpy_found" = no; then
430 AC_MSG_ERROR([memcpy is required])
433 # Some library-finding code we stole from Tcl.
434 #--------------------------------------------------------------------
435 # Check for the existence of the -lsocket and -lnsl libraries.
436 # The order here is important, so that they end up in the right
437 # order in the command line generated by make. Here are some
438 # special considerations:
439 # 1. Use "connect" and "accept" to check for -lsocket, and
440 # "gethostbyname" to check for -lnsl.
441 # 2. Use each function name only once: can't redo a check because
442 # autoconf caches the results of the last check and won't redo it.
443 # 3. Use -lnsl and -lsocket only if they supply procedures that
444 # aren't already present in the normal libraries. This is because
445 # IRIX 5.2 has libraries, but they aren't needed and they're
446 # bogus: they goof up name resolution if used.
447 # 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
448 # To get around this problem, check for both libraries together
449 # if -lsocket doesn't work by itself.
450 #--------------------------------------------------------------------
452 AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets,
455 unset ac_cv_func_connect
456 AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1)
457 if test "$gcj_checkSocket" = 1; then
458 unset ac_cv_func_connect
459 AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket",
462 if test "$gcj_checkBoth" = 1; then
464 LIBS="$LIBS -lsocket -lnsl"
465 unset ac_cv_func_accept
466 AC_CHECK_FUNC(accept,
468 gcj_cv_lib_sockets="-lsocket -lnsl"])
469 unset ac_cv_func_accept
472 unset ac_cv_func_gethostbyname
474 LIBS="$LIBS $gcj_cv_lib_sockets"
475 AC_CHECK_FUNC(gethostbyname, ,
476 [AC_CHECK_LIB(nsl, main,
477 [gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])])
478 unset ac_cv_func_gethostbyname
481 SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets"
483 if test "$with_system_zlib" = yes; then
484 AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=-lzgcj)
489 # On Solaris, and maybe other architectures, the Boehm collector
491 if test "$GC" = boehm; then
492 AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl")
495 if test -d "$libgcj_basedir/../gcc/java"; then
507 if test "x$ZLIBSPEC" = "x-lzgcj"; then
508 # We include the path to the zlib build directory.
509 # See Makefile.am to understand why.
510 ZDEPS='$(top_builddir)/../zlib/libzgcj.la'
511 ZLIBS="$ZDEPS -L\$(here)/../zlib/$libsubdir"
512 ZINCS='-I$(top_srcdir)/../zlib'
521 AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
522 AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
523 AM_CONDITIONAL(NATIVE, test "$CANADIAN" = no || test "$NULL_TARGET" = yes)
524 AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
525 AC_SUBST(EH_COMMON_INCLUDE)
527 # Determine gcj version number.
528 if test "$GCJ" = ""; then
529 if test -z "${with_multisubdir}"; then
533 builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`
536 dir="`cd ${builddotdot}/../../gcc && pwd`"
537 GCJ="$dir/gcj -B$dir/"
540 gcjvers="`$GCJ -v 2>&1 | sed -n 's/^.*version \([^ ]*\).*$/\1/p'`"
542 AC_DEFINE_UNQUOTED(GCJVERSION, "$gcjvers")
544 # See if gcj supports -fuse-divide-subroutine. gcc 2.95 does not, and
545 # we want to continue to support that version.
546 AC_MSG_CHECKING([whether gcj supports -fuse-divide-subroutine])
547 cat > conftest.java << 'END'
548 public class conftest { }
551 $GCJ -classpath $srcdir -fuse-divide-subroutine -fsyntax-only \
552 conftest.java > /dev/null 2>&1 \
555 if test "$use_fuse" = no; then
558 AC_MSG_RESULT($use_fuse)
560 AC_SUBST(AM_RUNTESTFLAGS)
562 dnl We check for sys/filio.h because Solaris 2.5 defines FIONREAD there.
563 dnl On that system, sys/ioctl.h will not include sys/filio.h unless
564 dnl BSD_COMP is defined; just including sys/filio.h is simpler.
565 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)
566 dnl We avoid AC_HEADER_DIRENT since we really only care about dirent.h
567 dnl for now. If you change this, you also must update natFile.cc.
568 AC_CHECK_HEADERS(dirent.h)
570 AC_CHECK_TYPE([ssize_t], [int])
572 AC_MSG_CHECKING([for in_addr_t])
573 AC_TRY_COMPILE([#include <sys/types.h>
578 #if HAVE_NETINET_IN_H
579 #include <netinet/in.h>
580 #endif], [in_addr_t foo;],
581 [AC_DEFINE([HAVE_IN_ADDR_T])
585 AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h])
586 AC_TRY_COMPILE([#include <netinet/in.h>], [struct ip_mreq mreq;],
587 [AC_DEFINE(HAVE_STRUCT_IP_MREQ)
591 AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h])
592 AC_TRY_COMPILE([#include <netinet/in.h>], [struct sockaddr_in6 addr6;],
593 [AC_DEFINE(HAVE_INET6)
597 AC_MSG_CHECKING([for socklen_t in sys/socket.h])
598 AC_TRY_COMPILE([#include <sys/socket.h>], [socklen_t x = 5;],
599 [AC_DEFINE(HAVE_SOCKLEN_T)
603 AC_MSG_CHECKING([for tm_gmtoff in struct tm])
604 AC_TRY_COMPILE([#include <time.h>], [struct tm tim; tim.tm_gmtoff = 0;],
605 [AC_DEFINE(STRUCT_TM_HAS_GMTOFF)
608 AC_MSG_CHECKING([for global timezone variable])
609 dnl FIXME: we don't want a link check here because that won't work
610 dnl when cross-compiling. So instead we make an assumption that
611 dnl the header file will mention timezone if it exists.
612 AC_TRY_COMPILE([#include <time.h>], [long z2 = timezone;],
613 [AC_DEFINE(HAVE_TIMEZONE)
615 [AC_MSG_RESULT(no)])])
619 AC_CHECK_PROGS(PERL, perl, false)
623 SIGNAL_HANDLER=include/i386-signal.h
626 SIGNAL_HANDLER=include/sparc-signal.h
629 SIGNAL_HANDLER=include/default-signal.h
633 AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h)
635 if test "${multilib}" = "yes"; then
636 multilib_arg="--enable-multilib"
644 AC_OUTPUT(Makefile libgcj.spec gcj/Makefile include/Makefile testsuite/Makefile,
645 [if test -n "$CONFIG_FILES"; then
646 ac_file=Makefile . ${libgcj_basedir}/../config-ml.in
651 with_multisubdir=${with_multisubdir}
652 ac_configure_args="${multilib_arg} ${ac_configure_args}"
653 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
654 libgcj_basedir=${libgcj_basedir}