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.
10 dnl We use these options to decide which functions to include.
11 AC_ARG_WITH(target-subdir,
12 [ --with-target-subdir=SUBDIR
13 configuring in a subdirectory])
14 AC_ARG_WITH(cross-host,
15 [ --with-cross-host=HOST configuring with a cross compiler])
19 AM_CONFIG_HEADER(include/config.h gcj/libgcj-config.h)
21 # Only use libltdl for native builds.
22 if test -z "${with_cross_host}"; then
23 AC_LIBLTDL_CONVENIENCE
27 # Sigh. Libtool's macro doesn't do the right thing.
28 INCLTDL="-I\$(top_srcdir)/libltdl $INCLTDL"
34 AC_CONFIG_SUBDIRS($DIRLTDL)
36 if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
43 dnl The -no-testsuite modules omit the test subdir.
44 AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
46 dnl See whether the user prefers size or speed for Character.
47 dnl The default is size.
48 AC_ARG_ENABLE(fast-character,
49 [ --enable-fast-character prefer speed over size for Character],
51 , AC_DEFINE(COMPACT_CHARACTER))
53 dnl Should the runtime set system properties by examining the
54 dnl environment variable GCJ_PROPERTIES?
55 AC_ARG_ENABLE(getenv-properties,
56 [ --disable-getenv-properties
57 don't set system properties from GCJ_PROPERTIES])
59 dnl Whether GCJ_PROPERTIES is used depends on the target.
60 if test -z "$enable_getenv_properties"; then
61 enable_getenv_properties=${enable_getenv_properties_default-yes}
63 if test "$enable_getenv_properties" = no; then
64 AC_DEFINE(DISABLE_GETENV_PROPERTIES)
68 dnl Should we use hashtable-based synchronization?
69 dnl Currently works only for Linux X86/ia64
70 dnl Typically faster and more space-efficient
71 AC_ARG_ENABLE(hash-synchronization,
72 [ --enable-hash-synchronization
73 Use global hash table for monitor locks])
75 if test -z "$enable_hash_synchronization"; then
76 enable_hash_synchronization=$enable_hash_synchronization_default
80 dnl See if the user has requested runtime debugging.
83 AC_ARG_ENABLE(libgcj-debug,
84 [ --enable-libgcj-debug enable runtime debugging code],
85 if test "$enable_libgcj_debug" = yes; then
90 dnl See if the user has the interpreter included.
91 AC_ARG_ENABLE(interpreter,
92 [ --enable-interpreter enable interpreter],
93 if test "$enable_interpreter" = yes; then
94 # This can also be set in configure.host.
95 libgcj_interpreter=yes
96 elif test "$enable_interpreter" = no; then
100 if test "$libgcj_interpreter" = yes; then
101 AC_DEFINE(INTERPRETER)
104 AC_MSG_CHECKING([for exception model to use])
107 AC_ARG_ENABLE(sjlj-exceptions,
108 [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
110 [dnl Botheration. Now we've got to detect the exception model.
111 dnl Link tests against libgcc.a are problematic since -- at least
112 dnl as of this writing -- we've not been given proper -L bits for
113 dnl single-tree newlib and libgloss.
115 dnl This is what AC_TRY_COMPILE would do if it didn't delete the
116 dnl conftest files before we got a change to grep them first.
117 cat > conftest.$ac_ext << EOF
118 [#]line __oline__ "configure"
127 old_CXXFLAGS="$CXXFLAGS"
129 if AC_TRY_EVAL(ac_compile); then
130 if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
131 enable_sjlj_exceptions=yes
132 elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
133 enable_sjlj_exceptions=no
136 CXXFLAGS="$old_CXXFLAGS"
138 if test x$enable_sjlj_exceptions = xyes; then
139 AC_DEFINE(SJLJ_EXCEPTIONS, 1,
140 [Define if the compiler is configured for setjmp/longjmp exceptions.])
141 ac_exception_model_name=sjlj
142 elif test x$enable_sjlj_exceptions = xno; then
143 ac_exception_model_name="call frame"
145 AC_MSG_ERROR([unable to detect exception model])
148 AC_MSG_RESULT($ac_exception_model_name)
150 dnl See if the user wants to disable java.net. This is the mildly
151 dnl ugly way that we admit that target-side configuration sucks.
152 AC_ARG_ENABLE(java-net,
153 [ --disable-java-net disable java.net])
155 dnl Whether java.net is built by default can depend on the target.
156 if test -z "$enable_java_net"; then
157 enable_java_net=${enable_java_net_default-yes}
159 if test "$enable_java_net" = no; then
160 AC_DEFINE(DISABLE_JAVA_NET)
163 dnl See if the user wants to configure without libffi. Some
164 dnl architectures don't support it, and default values are set in
167 [ --without-libffi don't use libffi],,with_libffi=${with_libffi_default-yes})
171 if test "$with_libffi" != no; then
172 AC_DEFINE(USE_LIBFFI)
173 LIBFFI=../libffi/libfficonvenience.la
174 LIBFFIINCS="-I$(top_srcdir)/../libffi/include -I$(MULTIBUILDTOP)../libffi/include"
179 dnl See if the user wants to disable JVMPI support.
181 [ --disable-jvmpi disable JVMPI support])
183 if test "$enable_jvmpi" != no; then
184 AC_DEFINE(ENABLE_JVMPI)
187 dnl If the target is an eCos system, use the appropriate eCos
189 dnl FIXME: this should not be a local option but a global target
190 dnl system; at present there is no eCos target.
193 [ --with-ecos enable runtime eCos target support],
194 TARGET_ECOS="$with_ecos"
197 case "$TARGET_ECOS" in
199 FILE_DESCRIPTOR=natFileDescriptorPosix.cc
200 PROCESS=${PROCESS-Posix}
203 FILE_DESCRIPTOR=natFileDescriptorEcos.cc
209 AC_EGREP_HEADER(uint32_t, stdint.h, AC_DEFINE(HAVE_INT32_DEFINED))
210 AC_EGREP_HEADER(uint32_t, inttypes.h, AC_DEFINE(HAVE_INT32_DEFINED))
211 AC_EGREP_HEADER(u_int32_t, sys/types.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
212 AC_EGREP_HEADER(u_int32_t, sys/config.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
215 dnl These may not be defined in a non-ANS conformant embedded system.
216 dnl FIXME: Should these case a runtime exception in that case?
217 AC_EGREP_HEADER(mktime, time.h, AC_DEFINE(HAVE_MKTIME))
218 AC_EGREP_HEADER(localtime, time.h, AC_DEFINE(HAVE_LOCALTIME))
220 dnl Create the subdirectory for natFileDescriptor.cc, or the attempt
221 dnl to create the link will fail.
222 test -d java || mkdir java
223 test -d java/io || mkdir java/io
224 test -d gnu || mkdir gnu
225 AC_LINK_FILES(java/io/$FILE_DESCRIPTOR, java/io/natFileDescriptor.cc)
227 dnl Likewise for ConcreteProcess.java and natConcreteProcess.cc.
228 test -d java/lang || mkdir java/lang
229 AC_LINK_FILES(java/lang/${PROCESS}Process.java, java/lang/ConcreteProcess.java)
230 AC_LINK_FILES(java/lang/nat${PROCESS}Process.cc, java/lang/natConcreteProcess.cc)
235 LIBGCJTESTSPEC="-L`pwd`/.libs -rpath `pwd`/.libs"
236 AC_SUBST(LIBGCJTESTSPEC)
238 AC_ARG_WITH(system-zlib,
239 [ --with-system-zlib use installed libz])
243 AC_SUBST(ZLIBTESTSPEC)
245 dnl FIXME: this should be _libs on some hosts.
248 dnl Allow the GC to be disabled. Can be useful when debugging.
249 AC_MSG_CHECKING([for garbage collector to use])
250 AC_ARG_ENABLE(java-gc,
251 changequote(<<,>>)dnl
252 << --enable-java-gc=TYPE choose garbage collector [boehm]>>,
266 GCDEPS='$(top_builddir)/../boehm-gc/libgcjgc.la'
267 # We include the path to the boehm-gc build directory.
268 # See Makefile.am to understand why.
269 GCLIBS="$GCDEPS -L\$(here)/../boehm-gc/$libsubdir"
270 GCINCS='-I$(top_srcdir)/../boehm-gc/include'
272 JC1GCSPEC='-fuse-boehm-gc'
273 GCTESTSPEC="-L`pwd`/../boehm-gc/.libs -rpath `pwd`/../boehm-gc/.libs"
274 dnl We also want to pick up some cpp flags required when including
275 dnl boehm-config.h. Yuck.
276 GCINCS="$GCINCS `cat ../boehm-gc/boehm-cflags`"
279 dnl The POSIX thread support needs to know this.
280 AC_DEFINE(HAVE_BOEHM_GC)
288 AC_MSG_ERROR(unrecognized collector \"$GC\")
298 AC_LINK_FILES(include/$GCHDR, include/java-gc.h)
301 AC_MSG_CHECKING([for thread model used by GCC])
302 THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
303 AC_MSG_RESULT([$THREADS])
313 AC_DEFINE(LINUX_THREADS)
317 decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
318 AC_MSG_ERROR(thread package $THREADS not yet supported)
321 AC_MSG_ERROR($THREADS is an unknown thread package)
335 THREADOBJS=posix-threads.lo
336 THREADH=posix-threads.h
337 # MIT pthreads doesn't seem to have the mutexattr functions.
338 # But for now we don't check for it. We just assume you aren't
339 # using MIT pthreads.
340 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
342 # If we're using the Boehm GC, then we happen to know that it
343 # defines _REENTRANT, so we don't bother. Eww.
344 if test "$GC" != boehm; then
345 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
347 AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1, [Required define if using POSIX threads])
351 THREADOBJS=no-threads.lo
355 AC_LINK_FILES(include/$THREADH, include/java-threads.h)
363 # Hash synchronization is only useful with posix threads right now.
364 if test "$enable_hash_synchronization" = yes && test "$THREADS" = "posix"; then
365 HASH_SYNC_SPEC=-fhash-synchronization
366 AC_DEFINE(JV_HASH_SYNCHRONIZATION)
368 AC_SUBST(HASH_SYNC_SPEC)
371 AM_CONDITIONAL(USING_GCC, test "$GCC" = yes)
377 # We're in the tree with gcc, and need to include some of its headers.
378 GCC_UNWIND_INCLUDE='-I$(top_srcdir)/../gcc'
380 if test -n "${with_cross_host}"; then
381 # We are being configured with a cross compiler. AC_REPLACE_FUNCS
382 # may not work correctly, because the compiler may not be able to
385 # We assume newlib. This lets us hard-code the functions we know
387 AC_DEFINE(HAVE_MEMMOVE)
388 AC_DEFINE(HAVE_MEMCPY)
389 AC_DEFINE(HAVE_STRERROR)
390 AC_DEFINE(HAVE_GMTIME_R)
391 AC_DEFINE(HAVE_LOCALTIME_R)
392 dnl This is only for POSIX threads.
393 AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
394 dnl We also assume we are using gcc, which provides alloca.
395 AC_DEFINE(HAVE_ALLOCA)
397 dnl Assume we do not have getuid and friends.
401 ZLIBTESTSPEC="-L`pwd`/../zlib/.libs -rpath `pwd`/../zlib/.libs"
403 # If Canadian cross, then don't pick up tools from the build
405 if test x"$build" != x"$with_cross_host" && x"$build" != x"$target"; then
408 GCJ="${target_alias}-gcj"
412 AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep)
413 AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r getcwd)
414 AC_CHECK_FUNCS(access stat mkdir rename rmdir unlink realpath utime chmod)
415 AC_CHECK_FUNCS(iconv nl_langinfo setlocale)
416 AC_CHECK_FUNCS(inet_aton inet_addr, break)
417 AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
418 AC_CHECK_FUNCS(backtrace fork execvp pipe sigaction)
419 AC_CHECK_HEADERS(execinfo.h unistd.h dlfcn.h)
420 AC_CHECK_LIB(dl, dladdr, [
421 AC_DEFINE(HAVE_DLADDR)])
422 AC_CHECK_FILES(/proc/self/exe, [
423 AC_DEFINE(HAVE_PROC_SELF_EXE)])
425 AC_CHECK_FUNCS(gethostbyname_r, [
426 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
427 # There are two different kinds of gethostbyname_r.
428 # We look for the one that returns `int'.
429 # Hopefully this check is robust enough.
430 AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [
431 AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT)])
434 *" -D_REENTRANT "*) ;;
436 dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT
437 AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT],
438 [libjava_cv_gethostbyname_r_needs_reentrant],
441 AC_TRY_COMPILE([#include <netdb.h>],
442 [gethostbyname_r("", 0, 0);],
443 [libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl
444 CPPFLAGS_SAVE="$CPPFLAGS"
445 CPPFLAGS="$CPPFLAGS -D_REENTRANT"
446 AC_TRY_COMPILE([#include <netdb.h>], [gethostbyname_r("", 0, 0);],
447 [libjava_cv_gethostbyname_r_needs_reentrant=yes],
448 [libjava_cv_gethostbyname_r_needs_reentrant=fail])
449 CPPFLAGS="$CPPFLAGS_SAVE"
453 if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then
454 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
459 AC_CACHE_CHECK([for struct hostent_data],
460 [libjava_cv_struct_hostent_data], [dnl
462 #if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
463 # define _REENTRANT 1
465 #include <netdb.h>], [struct hostent_data data;],
466 [libjava_cv_struct_hostent_data=yes],
467 [libjava_cv_struct_hostent_data=no])])
468 if test "x$libjava_cv_struct_hostent_data" = xyes; then
469 AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1,
470 [Define if struct hostent_data is defined in netdb.h])
474 AC_CHECK_FUNCS(gethostbyaddr_r, [
475 AC_DEFINE(HAVE_GETHOSTBYADDR_R)
476 # There are two different kinds of gethostbyaddr_r.
477 # We look for the one that returns `int'.
478 # Hopefully this check is robust enough.
479 AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [
480 AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT)])])
482 AC_CHECK_FUNCS(gethostname, [
483 AC_DEFINE(HAVE_GETHOSTNAME)
484 AC_EGREP_HEADER(gethostname, unistd.h, [
485 AC_DEFINE(HAVE_GETHOSTNAME_DECL)])])
487 # Look for these functions in the thread library, but only bother
488 # if using POSIX threads.
489 if test "$THREADS" = posix; then
491 LIBS="$LIBS $THREADLIBS"
492 # Some POSIX thread systems don't have pthread_mutexattr_settype.
494 AC_CHECK_FUNCS(pthread_mutexattr_settype pthread_mutexattr_setkind_np)
496 # Look for sched_yield. Up to Solaris 2.6, it is in libposix4, since
497 # Solaris 7 the name librt is preferred.
498 AC_CHECK_FUNCS(sched_yield, , [
499 AC_CHECK_LIB(rt, sched_yield, [
500 AC_DEFINE(HAVE_SCHED_YIELD)
501 THREADLIBS="$THREADLIBS -lrt"
502 THREADSPEC="$THREADSPEC -lrt"], [
503 AC_CHECK_LIB(posix4, sched_yield, [
504 AC_DEFINE(HAVE_SCHED_YIELD)
505 THREADLIBS="$THREADLIBS -lposix4"
506 THREADSPEC="$THREADSPEC -lposix4"])])])
509 # We can save a little space at runtime if the mutex has m_count
510 # or __m_count. This is a nice hack for Linux.
511 AC_TRY_COMPILE([#include <pthread.h>], [
512 extern pthread_mutex_t *mutex; int q = mutex->m_count;
513 ], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT), [
514 AC_TRY_COMPILE([#include <pthread.h>], [
515 extern pthread_mutex_t *mutex; int q = mutex->__m_count;
516 ], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT))])
519 # We require a way to get the time.
521 AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes)
522 if test "$time_found" = no; then
523 AC_MSG_ERROR([no function found to get the time])
526 AC_CHECK_FUNCS(memmove)
530 AC_CHECK_FUNCS(memcpy, memcpy_found=yes)
531 if test "$memcpy_found" = no; then
532 AC_MSG_ERROR([memcpy is required])
535 # Some library-finding code we stole from Tcl.
536 #--------------------------------------------------------------------
537 # Check for the existence of the -lsocket and -lnsl libraries.
538 # The order here is important, so that they end up in the right
539 # order in the command line generated by make. Here are some
540 # special considerations:
541 # 1. Use "connect" and "accept" to check for -lsocket, and
542 # "gethostbyname" to check for -lnsl.
543 # 2. Use each function name only once: can't redo a check because
544 # autoconf caches the results of the last check and won't redo it.
545 # 3. Use -lnsl and -lsocket only if they supply procedures that
546 # aren't already present in the normal libraries. This is because
547 # IRIX 5.2 has libraries, but they aren't needed and they're
548 # bogus: they goof up name resolution if used.
549 # 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
550 # To get around this problem, check for both libraries together
551 # if -lsocket doesn't work by itself.
552 #--------------------------------------------------------------------
554 AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets,
557 unset ac_cv_func_connect
558 AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1)
559 if test "$gcj_checkSocket" = 1; then
560 unset ac_cv_func_connect
561 AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket",
564 if test "$gcj_checkBoth" = 1; then
566 LIBS="$LIBS -lsocket -lnsl"
567 unset ac_cv_func_accept
568 AC_CHECK_FUNC(accept,
570 gcj_cv_lib_sockets="-lsocket -lnsl"])
571 unset ac_cv_func_accept
574 unset ac_cv_func_gethostbyname
576 LIBS="$LIBS $gcj_cv_lib_sockets"
577 AC_CHECK_FUNC(gethostbyname, ,
578 [AC_CHECK_LIB(nsl, main,
579 [gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])])
580 unset ac_cv_func_gethostbyname
583 SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets"
585 if test "$with_system_zlib" = yes; then
586 AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=-lzgcj)
589 ZLIBTESTSPEC="-L`pwd`/../zlib/.libs -rpath `pwd`/../zlib/.libs"
592 # On Solaris, and maybe other architectures, the Boehm collector
594 if test "$GC" = boehm; then
595 AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl")
598 if test -z "${with_multisubdir}"; then
602 builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`
605 if test -x "${builddotdot}/../../gcc/gcj"; then
606 dir="`cd ${builddotdot}/../../gcc && pwd`"
607 GCJ="$dir/gcj -B`pwd`/ -B$dir/"
615 # Create it, so that compile/link tests don't fail
616 test -f libgcj.spec || touch libgcj.spec
618 # We must search the source tree for java.lang, since we still don't
619 # have libgcj.jar nor java/lang/*.class
620 GCJ_SAVE_CPPFLAGS=$CPPFLAGS
621 CPPFLAGS="$CPPFLAGS -I`pwd` -I`cd $srcdir && pwd`"
623 # Since some classes depend on this one, we need its source available
624 # before we can do any GCJ compilation test :-(
625 if test ! -f gnu/classpath/Configuration.java; then
626 test -d gnu || mkdir gnu
627 test -d gnu/classpath || mkdir gnu/classpath
628 sed 's,@LIBGCJDEBUG@,$LIBGCJDEBUG,' \
629 < $srcdir/gnu/classpath/Configuration.java.in \
630 > gnu/classpath/Configuration.java
631 # We do not want to redirect the output of the grep below to /dev/null,
632 # but we add /dev/null to the input list so that grep will print the
633 # filename of Configuration.java in case it finds any matches.
634 if grep @ gnu/classpath/Configuration.java /dev/null; then
635 AC_MSG_ERROR([configure.in is missing the substitutions above])
641 CPPFLAGS=$GCJ_SAVE_CPPFLAGS
643 dnl FIXME: cross compilation
644 AC_CHECK_SIZEOF(void *)
649 if test "x$ZLIBSPEC" = "x-lzgcj"; then
650 # We include the path to the zlib build directory.
651 # See Makefile.am to understand why.
652 ZDEPS='$(top_builddir)/../zlib/libzgcj.la'
653 ZLIBS="$ZDEPS -L\$(here)/../zlib/$libsubdir"
654 ZINCS='-I$(top_srcdir)/../zlib'
662 AC_SUBST(EXCEPTIONSPEC)
664 AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
665 AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
666 AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
667 AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
668 AM_CONDITIONAL(NEEDS_DATA_START, test "$NEEDS_DATA_START" = yes && test "$NATIVE" = yes)
669 AC_SUBST(GCC_UNWIND_INCLUDE)
671 # Determine gcj version number.
673 gcjvers="`$GCJ -v 2>&1 | sed -n 's/^.*version \([^ ]*\).*$/\1/p'`"
675 AC_DEFINE_UNQUOTED(GCJVERSION, "$gcjvers")
678 AC_SUBST(AM_RUNTESTFLAGS)
680 dnl Work around a g++ bug. Reported to gcc-bugs@gcc.gnu.org on Jan 22, 2000.
681 AC_MSG_CHECKING([for g++ -ffloat-store bug])
682 save_CFLAGS="$CFLAGS"
683 CFLAGS="-x c++ -O2 -ffloat-store"
684 AC_TRY_COMPILE([#include <math.h>], ,
686 [AC_DEFINE(__NO_MATH_INLINES)
688 CFLAGS="$save_CFLAGS"
690 dnl We check for sys/filio.h because Solaris 2.5 defines FIONREAD there.
691 dnl On that system, sys/ioctl.h will not include sys/filio.h unless
692 dnl BSD_COMP is defined; just including sys/filio.h is simpler.
693 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 langinfo.h locale.h)
694 dnl We avoid AC_HEADER_DIRENT since we really only care about dirent.h
695 dnl for now. If you change this, you also must update natFile.cc.
696 AC_CHECK_HEADERS(dirent.h)
698 AC_CHECK_TYPE([ssize_t], [int])
700 AC_MSG_CHECKING([for in_addr_t])
701 AC_TRY_COMPILE([#include <sys/types.h>
706 #if HAVE_NETINET_IN_H
707 #include <netinet/in.h>
708 #endif], [in_addr_t foo;],
709 [AC_DEFINE([HAVE_IN_ADDR_T])
713 AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h])
714 AC_TRY_COMPILE([#include <netinet/in.h>], [struct ip_mreq mreq;],
715 [AC_DEFINE(HAVE_STRUCT_IP_MREQ)
719 AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h])
720 AC_TRY_COMPILE([#include <netinet/in.h>], [struct sockaddr_in6 addr6;],
721 [AC_DEFINE(HAVE_INET6)
725 AC_MSG_CHECKING([for socklen_t in sys/socket.h])
726 AC_TRY_COMPILE([#include <sys/types.h>
727 #include <sys/socket.h>], [socklen_t x = 5;],
728 [AC_DEFINE(HAVE_SOCKLEN_T)
732 AC_MSG_CHECKING([for tm_gmtoff in struct tm])
733 AC_TRY_COMPILE([#include <time.h>], [struct tm tim; tim.tm_gmtoff = 0;],
734 [AC_DEFINE(STRUCT_TM_HAS_GMTOFF)
737 AC_MSG_CHECKING([for global timezone variable])
738 dnl FIXME: we don't want a link check here because that won't work
739 dnl when cross-compiling. So instead we make an assumption that
740 dnl the header file will mention timezone if it exists.
741 AC_TRY_COMPILE([#include <time.h>], [long z2 = timezone;],
742 [AC_DEFINE(HAVE_TIMEZONE)
744 [AC_MSG_RESULT(no)])])
748 AC_CHECK_PROGS(PERL, perl, false)
754 SIGNAL_HANDLER=include/i386-signal.h
757 SIGNAL_HANDLER=include/sparc-signal.h
760 # SYSDEP_SOURCES=sysdep/ia64.c
761 # test -d sysdep || mkdir sysdep
764 SIGNAL_HANDLER=include/dwarf2-signal.h
767 SIGNAL_HANDLER=include/dwarf2-signal.h
770 SIGNAL_HANDLER=include/default-signal.h
774 # If we're using sjlj exceptions, forget what we just learned.
775 if test "$enable_sjlj_exceptions" = yes; then
776 SIGNAL_HANDLER=include/default-signal.h
779 AC_SUBST(SYSDEP_SOURCES)
781 AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h)
783 if test "${multilib}" = "yes"; then
784 multilib_arg="--enable-multilib"
791 dnl Determine which AWT peer libraries to build
792 AC_ARG_ENABLE(java-awt,
793 [ --enable-java-awt list of AWT peer implementations to be built])
795 peerlibs="`echo ${enable_java_awt} | tr ',' ' '`"
799 for peer in $peerlibs ; do
802 if [test "$no_x" = yes]; then
803 echo "*** xlib peers requested but no X library available" 1>&2
813 echo "*** unrecognised argument \"${peer}\" for --enable-java-awt" 1>&2
818 AM_CONDITIONAL(XLIB_AWT, test "$use_xlib_awt" = yes)
819 AM_CONDITIONAL(GTK_AWT, test "$use_gtk_awt" = yes)
825 # We get this from the environment.
828 AC_OUTPUT(Makefile libgcj.spec libgcj-test.spec gnu/classpath/Configuration.java gcj/Makefile include/Makefile testsuite/Makefile,
829 [# Only add multilib support code if we just rebuilt top-level Makefile.
830 case " $CONFIG_FILES " in
832 ac_file=Makefile . ${libgcj_basedir}/../config-ml.in
836 # Make subdirectories and `.d' files. Look in both srcdir and
837 # builddir for the .java files.
840 ( (cd $srcdir && find . -name '*.java' -print) ;
841 find . -name '*.java' -print) | \
842 fgrep -v testsuite | \
843 sed -e 's/\.java/.d/' | \
845 echo "include $f" >> deps.mk
848 d=`echo $f | sed -e 's,/[^/]*$,,'`
850 $srcdir/../mkinstalldirs $d
858 with_multisubdir=${with_multisubdir}
859 ac_configure_args="${multilib_arg} ${ac_configure_args}"
860 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
861 libgcj_basedir=${libgcj_basedir}