dnl Process this with autoconf to create configure AC_INIT(java/lang/System.java) dnl Can't be done in LIBGCJ_CONFIGURE because that confuses automake. AC_CONFIG_AUX_DIR(..) AC_CANONICAL_SYSTEM dnl We use these options to decide which functions to include. AC_ARG_WITH(target-subdir, [ --with-target-subdir=SUBDIR configuring in a subdirectory]) AC_ARG_WITH(cross-host, [ --with-cross-host=HOST configuring with a cross compiler]) LIBGCJ_CONFIGURE(.) AM_CONFIG_HEADER(include/config.h) # Only use libltdl for native builds. if test -z "${with_cross_host}"; then AC_LIBLTDL_CONVENIENCE AC_LIBTOOL_DLOPEN DIRLTDL=libltdl AC_DEFINE(USE_LTDL) # Sigh. Libtool's macro doesn't do the right thing. INCLTDL="-I\$(top_srcdir)/libltdl $INCLTDL" fi AC_SUBST(INCLTDL) AC_SUBST(LIBLTDL) AC_SUBST(DIRLTDL) AM_PROG_LIBTOOL AC_CONFIG_SUBDIRS($DIRLTDL) if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then COMPPATH=. else COMPPATH=.. fi AC_SUBST(COMPPATH) dnl The -no-testsuite modules omit the test subdir. AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite) dnl See whether the user prefers size or speed for Character. dnl The default is size. AC_ARG_ENABLE(fast-character, [ --enable-fast-character prefer speed over size for Character], # Nothing , AC_DEFINE(COMPACT_CHARACTER)) dnl Should the runtime set system properties by examining the dnl environment variable GCJ_PROPERTIES? AC_ARG_ENABLE(getenv-properties, [ --disable-getenv-properties don't set system properties from GCJ_PROPERTIES]) dnl Whether GCJ_PROPERTIES is used depends on the target. if test -n "$enable_getenv_properties"; then enable_getenv_properties=${enable_getenv_properties_default-yes} fi if test "$enable_getenv_properties" = no; then AC_DEFINE(DISABLE_GETENV_PROPERTIES) fi dnl See if the user has requested runtime debugging. AC_ARG_ENABLE(libgcj-debug, [ --enable-libgcj-debug enable runtime debugging code], if test "$enable_libgcj_debug" = yes; then AC_DEFINE(DEBUG) fi) dnl See if the user has the interpreter included. AC_ARG_ENABLE(interpreter, [ --enable-interpreter enable interpreter], if test "$enable_interpreter" = yes; then # This can also be set in configure.host. libgcj_interpreter=yes elif test "$enable_interpreter" = no; then libgcj_interpreter=no fi) if test "$libgcj_interpreter" = yes; then AC_DEFINE(INTERPRETER) fi EXCEPTIONSPEC= dnl See if we should use setjmp/longjmp exceptions AC_ARG_ENABLE(sjlj-exceptions, [ --enable-sjlj-exceptions use setjmp/longjmp exceptions], if test "$enable_sjlj_exceptions" = yes; then # This can be set in configure.host. libgcj_sjlj=yes fi) if test "$libgcj_sjlj" = yes; then EXCEPTIONSPEC="-fsjlj-exceptions" AC_DEFINE(SJLJ_EXCEPTIONS) fi FORCELIBGCCSPEC= dnl Work around libgcc design flaw. if test "$ac_cv_prog_gnu_ld" = yes; then FORCELIBGCCSPEC="-u __rethrow -u __frame_state_for -lgcc" fi AC_MSG_CHECKING([for data_start]) LIBDATASTARTSPEC= NEEDS_DATA_START= AC_TRY_LINK([extern int data_start;], [return ((int) &data_start);], [AC_MSG_RESULT(found it)], [LIBDATASTARTSPEC="-u data_start -lgcjdata" NEEDS_DATA_START=yes AC_MSG_RESULT(missing)]) AC_SUBST(LIBDATASTARTSPEC) dnl See if the user wants to disable java.net. This is the mildly dnl ugly way that we admit that target-side configuration sucks. AC_ARG_ENABLE(java-net, [ --disable-java-net disable java.net]) dnl Whether java.net is built by default can depend on the target. if test -n "$enable_java_net"; then enable_java_net=${enable_java_net_default-yes} fi if test "$enable_java_net" = no; then AC_DEFINE(DISABLE_JAVA_NET) fi dnl If the target is an eCos system, use the appropriate eCos dnl I/O routines. dnl FIXME: this should not be a local option but a global target dnl system; at present there is no eCos target. TARGET_ECOS="no" AC_ARG_WITH(ecos, [ --with-ecos enable runtime eCos target support], TARGET_ECOS="$with_ecos" ) case "$TARGET_ECOS" in no) FILE_DESCRIPTOR=natFileDescriptorPosix.cc PROCESS=${PROCESS-Posix} ;; *) FILE_DESCRIPTOR=natFileDescriptorEcos.cc PROCESS=Ecos AC_DEFINE(ECOS) ;; esac AC_EGREP_HEADER(uint32_t, stdint.h, AC_DEFINE(HAVE_INT32_DEFINED)) AC_EGREP_HEADER(uint32_t, inttypes.h, AC_DEFINE(HAVE_INT32_DEFINED)) AC_EGREP_HEADER(u_int32_t, sys/types.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED)) AC_EGREP_HEADER(u_int32_t, sys/config.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED)) dnl These may not be defined in a non-ANS conformant embedded system. dnl FIXME: Should these case a runtime exception in that case? AC_EGREP_HEADER(mktime, time.h, AC_DEFINE(HAVE_MKTIME)) AC_EGREP_HEADER(localtime, time.h, AC_DEFINE(HAVE_LOCALTIME)) dnl Create the subdirectory for natFileDescriptor.cc, or the attempt dnl to create the link will fail. test -d java || mkdir java test -d java/io || mkdir java/io AC_LINK_FILES(java/io/$FILE_DESCRIPTOR, java/io/natFileDescriptor.cc) dnl Likewise for ConcreteProcess.java and natConcreteProcess.cc. test -d java/lang || mkdir java/lang AC_LINK_FILES(java/lang/${PROCESS}Process.java, java/lang/ConcreteProcess.java) AC_LINK_FILES(java/lang/nat${PROCESS}Process.cc, java/lang/natConcreteProcess.cc) SYSTEMSPEC= AC_SUBST(SYSTEMSPEC) LIBGCJTESTSPEC="-L`pwd`/.libs -rpath `pwd`/.libs" AC_SUBST(LIBGCJTESTSPEC) AC_ARG_WITH(system-zlib, [ --with-system-zlib use installed libz]) ZLIBSPEC= AC_SUBST(ZLIBSPEC) ZLIBTESTSPEC= AC_SUBST(ZLIBTESTSPEC) dnl FIXME: this should be _libs on some hosts. libsubdir=.libs dnl Allow the GC to be disabled. Can be useful when debugging. AC_MSG_CHECKING([for garbage collector to use]) AC_ARG_ENABLE(java-gc, changequote(<<,>>)dnl << --enable-java-gc=TYPE choose garbage collector [boehm]>>, changequote([,]) GC=$enableval, GC=boehm) GCLIBS= GCINCS= GCDEPS= GCOBJS= GCSPEC= GCTESTSPEC= case "$GC" in boehm) AC_MSG_RESULT(boehm) GCDEPS='$(top_builddir)/../boehm-gc/libgcjgc.la' # We include the path to the boehm-gc build directory. # See Makefile.am to understand why. GCLIBS="$GCDEPS -L\$(here)/../boehm-gc/$libsubdir" GCINCS='-I$(top_srcdir)/../boehm-gc -I$(top_builddir)/../boehm-gc' GCSPEC='-lgcjgc' GCTESTSPEC="-L`pwd`/../boehm-gc/.libs -rpath `pwd`/../boehm-gc/.libs" dnl We also want to pick up some cpp flags required when including dnl boehm-config.h. Yuck. GCINCS="$GCINCS `cat ../boehm-gc/boehm-cflags`" GCOBJS=boehm.lo GCHDR=boehm-gc.h dnl The POSIX thread support needs to know this. AC_DEFINE(HAVE_BOEHM_GC) ;; no) AC_MSG_RESULT(none) GCOBJS=nogc.lo GCHDR=no-gc.h ;; *) AC_MSG_ERROR(unrecognized collector \"$GC\") ;; esac AC_SUBST(GCLIBS) AC_SUBST(GCINCS) AC_SUBST(GCDEPS) AC_SUBST(GCOBJS) AC_SUBST(GCSPEC) AC_SUBST(GCTESTSPEC) AC_LINK_FILES(include/$GCHDR, include/java-gc.h) dnl Note that this code is kept in sync with similar code in gcc/configure.in. dnl In particular both packages must make the same decision about which dnl thread package to use. AC_MSG_CHECKING([for threads package to use]) AC_ARG_ENABLE(threads, [ --enable-threads=TYPE choose threading package], THREADS=$enableval, dnl FIXME: figure out native threads to use here. THREADS=no) if test "$THREADS" = yes; then case "$host" in *-*-vxworks*) THREADS=vxworks ;; *-*-linux*) # FIXME: this isn't correct in all cases. THREADS=posix ;; *-*-win*) THREADS=win32 ;; *-*-irix*) # FIXME: for now, choose POSIX, because we implement that. # Later, choose irix threads. THREADS=posix ;; *-*-solaris*) # FIXME: for now, choose POSIX, because we implement that. # Later, choose solaris threads. THREADS=posix ;; *) # For now. THREADS=none ;; esac fi case "$THREADS" in no | none | single) THREADS=none ;; posix | pthreads) THREADS=posix case "$host" in *-*-linux*) AC_DEFINE(LINUX_THREADS) ;; esac ;; decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks) AC_MSG_ERROR(thread package $THREADS not yet supported) ;; *) AC_MSG_ERROR($THREADS is an unknown thread package) ;; esac AC_MSG_RESULT($THREADS) THREADLIBS= THREADINCS= THREADDEPS= THREADOBJS= THREADH= THREADSPEC= case "$THREADS" in posix) THREADLIBS=-lpthread THREADSPEC=-lpthread THREADOBJS=posix-threads.lo THREADH=posix-threads.h # MIT pthreads doesn't seem to have the mutexattr functions. # But for now we don't check for it. We just assume you aren't # using MIT pthreads. AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT) ;; none) THREADOBJS=no-threads.lo THREADH=no-threads.h ;; esac AC_LINK_FILES(include/$THREADH, include/java-threads.h) AC_SUBST(THREADLIBS) AC_SUBST(THREADINCS) AC_SUBST(THREADDEPS) AC_SUBST(THREADOBJS) AC_SUBST(THREADSPEC) AM_CONDITIONAL(USING_GCC, test "$GCC" = yes) CANADIAN=no NULL_TARGET=no NATIVE=yes # Find eh-common.h and support headers. If we're in the tree with # gcc, then look there. Otherwise look in compat-include. If all else # fails, just hope the user has set things up somehow. if test -r $srcdir/../gcc/eh-common.h; then EH_COMMON_INCLUDE='-I$(top_srcdir)/../gcc -I$(top_srcdir)/../include' else if test -d $srcdir/../compat-include; then EH_COMMON_INCLUDE='-I$(top_srcdir)/../compat-include' else EH_COMMON_INCLUDE= fi fi if test -n "${with_cross_host}"; then # We are being configured with a cross compiler. AC_REPLACE_FUNCS # may not work correctly, because the compiler may not be able to # link executables. # We assume newlib. This lets us hard-code the functions we know # we'll have. AC_DEFINE(HAVE_MEMMOVE) AC_DEFINE(HAVE_MEMCPY) AC_DEFINE(HAVE_STRERROR) AC_DEFINE(HAVE_GMTIME_R) AC_DEFINE(HAVE_LOCALTIME_R) dnl This is only for POSIX threads. AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT) dnl We also assume we are using gcc, which provides alloca. AC_DEFINE(HAVE_ALLOCA) dnl Assume we do not have getuid and friends. AC_DEFINE(NO_GETUID) ZLIBSPEC=-lzgcj ZLIBTESTSPEC="-L`pwd`/../zlib/.libs -rpath `pwd`/../zlib/.libs" # If Canadian cross, then don't pick up tools from the build # directory. if test "$build" != "$with_cross_host"; then CANADIAN=yes EH_COMMON_INCLUDE= GCJ="${target_alias}-gcj" else GCJ= fi NATIVE=no else AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep) AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r getcwd) AC_CHECK_FUNCS(access stat mkdir rename rmdir unlink realpath iconv) AC_CHECK_FUNCS(inet_aton inet_addr, break) AC_CHECK_FUNCS(inet_pton uname inet_ntoa) AC_CHECK_FUNCS(backtrace fork execvp pipe) AC_CHECK_HEADERS(execinfo.h unistd.h dlfcn.h) AC_CHECK_LIB(dl, dladdr, [ AC_DEFINE(HAVE_DLADDR)]) AC_CHECK_FILES(/proc/self/exe, [ AC_DEFINE(HAVE_PROC_SELF_EXE)]) AC_CHECK_FUNCS(gethostbyname_r, [ AC_DEFINE(HAVE_GETHOSTBYNAME_R) # There are two different kinds of gethostbyname_r. # We look for the one that returns `int'. # Hopefully this check is robust enough. AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [ AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT)]) case " $GCINCS " in *" -D_REENTRANT "*) ;; *) dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT], [libjava_cv_gethostbyname_r_needs_reentrant], [ AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([#include ], [gethostbyname_r("", 0, 0);], [libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl CPPFLAGS_SAVE="$CPPFLAGS" CPPFLAGS="$CPPFLAGS -D_REENTRANT" AC_TRY_COMPILE([#include ], [gethostbyname_r("", 0, 0);], [libjava_cv_gethostbyname_r_needs_reentrant=yes], [libjava_cv_gethostbyname_r_needs_reentrant=fail]) CPPFLAGS="$CPPFLAGS_SAVE" ]) AC_LANG_RESTORE ]) if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then AC_DEFINE(GETHOSTBYNAME_R_NEEDS_REENTRANT, 1, [Define if gethostbyname_r is only declared if _REENTRANT is defined]) fi ;; esac AC_CACHE_CHECK([for struct hostent_data], [libjava_cv_struct_hostent_data], [dnl AC_TRY_COMPILE([ #if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT) # define _REENTRANT 1 #endif #include ], [struct hostent_data data;], [libjava_cv_struct_hostent_data=yes], [libjava_cv_struct_hostent_data=no])]) if test "x$libjava_cv_struct_hostent_data" = xyes; then AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1, [Define if struct hostent_data is defined in netdb.h]) fi ]) AC_CHECK_FUNCS(gethostbyaddr_r, [ AC_DEFINE(HAVE_GETHOSTBYADDR_R) # There are two different kinds of gethostbyaddr_r. # We look for the one that returns `int'. # Hopefully this check is robust enough. AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [ AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT)])]) AC_CHECK_FUNCS(gethostname, [ AC_DEFINE(HAVE_GETHOSTNAME) AC_EGREP_HEADER(gethostname, unistd.h, [ AC_DEFINE(HAVE_GETHOSTNAME_DECL)])]) # Look for these functions in the thread library, but only bother # if using POSIX threads. if test "$THREADS" = posix; then save_LIBS="$LIBS" LIBS="$LIBS $THREADLIBS" # Some POSIX thread systems don't have pthread_mutexattr_settype. # E.g., Solaris. AC_CHECK_FUNCS(pthread_mutexattr_settype pthread_mutexattr_setkind_np) # Look for sched_yield. Up to Solaris 2.6, it is in libposix4, since # Solaris 7 the name librt is preferred. AC_CHECK_FUNCS(sched_yield, , [ AC_CHECK_LIB(rt, sched_yield, [ AC_DEFINE(HAVE_SCHED_YIELD) THREADLIBS="$THREADLIBS -lrt" THREADSPEC="$THREADSPEC -lrt"], [ AC_CHECK_LIB(posix4, sched_yield, [ AC_DEFINE(HAVE_SCHED_YIELD) THREADLIBS="$THREADLIBS -lposix4" THREADSPEC="$THREADSPEC -lposix4"])])]) LIBS="$save_LIBS" # We can save a little space at runtime if the mutex has m_count # or __m_count. This is a nice hack for Linux. AC_TRY_COMPILE([#include ], [ extern pthread_mutex_t *mutex; int q = mutex->m_count; ], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT), [ AC_TRY_COMPILE([#include ], [ extern pthread_mutex_t *mutex; int q = mutex->__m_count; ], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT))]) fi # We require a way to get the time. time_found=no AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes) if test "$time_found" = no; then AC_MSG_ERROR([no function found to get the time]) fi AC_CHECK_FUNCS(memmove) # We require memcpy. memcpy_found=no AC_CHECK_FUNCS(memcpy, memcpy_found=yes) if test "$memcpy_found" = no; then AC_MSG_ERROR([memcpy is required]) fi # Some library-finding code we stole from Tcl. #-------------------------------------------------------------------- # Check for the existence of the -lsocket and -lnsl libraries. # The order here is important, so that they end up in the right # order in the command line generated by make. Here are some # special considerations: # 1. Use "connect" and "accept" to check for -lsocket, and # "gethostbyname" to check for -lnsl. # 2. Use each function name only once: can't redo a check because # autoconf caches the results of the last check and won't redo it. # 3. Use -lnsl and -lsocket only if they supply procedures that # aren't already present in the normal libraries. This is because # IRIX 5.2 has libraries, but they aren't needed and they're # bogus: they goof up name resolution if used. # 4. On some SVR4 systems, can't use -lsocket without -lnsl too. # To get around this problem, check for both libraries together # if -lsocket doesn't work by itself. #-------------------------------------------------------------------- AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets, [gcj_cv_lib_sockets= gcj_checkBoth=0 unset ac_cv_func_connect AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1) if test "$gcj_checkSocket" = 1; then unset ac_cv_func_connect AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket", gcj_checkBoth=1) fi if test "$gcj_checkBoth" = 1; then gcj_oldLibs=$LIBS LIBS="$LIBS -lsocket -lnsl" unset ac_cv_func_accept AC_CHECK_FUNC(accept, [gcj_checkNsl=0 gcj_cv_lib_sockets="-lsocket -lnsl"]) unset ac_cv_func_accept LIBS=$gcj_oldLibs fi unset ac_cv_func_gethostbyname gcj_oldLibs=$LIBS LIBS="$LIBS $gcj_cv_lib_sockets" AC_CHECK_FUNC(gethostbyname, , [AC_CHECK_LIB(nsl, main, [gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])]) unset ac_cv_func_gethostbyname LIBS=$gcj_oldLIBS ]) SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets" if test "$with_system_zlib" = yes; then AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=-lzgcj) else ZLIBSPEC=-lzgcj ZLIBTESTSPEC="-L`pwd`/../zlib/.libs -rpath `pwd`/../zlib/.libs" fi # On Solaris, and maybe other architectures, the Boehm collector # requires -ldl. if test "$GC" = boehm; then AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl") fi if test -d "$libgcj_basedir/../gcc/java"; then GCJ= else CANADIAN=yes NULL_TARGET=yes GCJ=gcj fi fi ZLIBS= ZDEPS= ZINCS= if test "x$ZLIBSPEC" = "x-lzgcj"; then # We include the path to the zlib build directory. # See Makefile.am to understand why. ZDEPS='$(top_builddir)/../zlib/libzgcj.la' ZLIBS="$ZDEPS -L\$(here)/../zlib/$libsubdir" ZINCS='-I$(top_srcdir)/../zlib' else ZLIBS="$ZLIBSPEC" fi AC_SUBST(ZLIBS) AC_SUBST(ZDEPS) AC_SUBST(ZINCS) AC_SUBST(DIVIDESPEC) AC_SUBST(EXCEPTIONSPEC) AC_SUBST(FORCELIBGCCSPEC) AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes) AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes) AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes) AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host") AM_CONDITIONAL(NEEDS_DATA_START, test "$NEEDS_DATA_START" = yes && test "$NATIVE" = yes) AC_SUBST(EH_COMMON_INCLUDE) # Determine gcj version number. if test "$GCJ" = ""; then if test -z "${with_multisubdir}"; then builddotdot=. else changequote(<<,>>) builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'` changequote([,]) fi dir="`cd ${builddotdot}/../../gcc && pwd`" GCJ="$dir/gcj -B$dir/" fi changequote(<<,>>) gcjvers="`$GCJ -v 2>&1 | sed -n 's/^.*version \([^ ]*\).*$/\1/p'`" changequote([,]) AC_DEFINE_UNQUOTED(GCJVERSION, "$gcjvers") # See if gcj supports -fuse-divide-subroutine. gcc 2.95 does not, and # we want to continue to support that version. AC_MSG_CHECKING([whether gcj supports -fuse-divide-subroutine]) cat > conftest.java << 'END' public class conftest { } END use_fuse=yes $GCJ -classpath $srcdir -fuse-divide-subroutine -fsyntax-only \ conftest.java > /dev/null 2>&1 \ || use_fuse=no rm -f conftest.java if test "$use_fuse" = no; then DIVIDESPEC= fi AC_MSG_RESULT($use_fuse) AC_SUBST(AM_RUNTESTFLAGS) dnl Work around a g++ bug. Reported to gcc-bugs@gcc.gnu.org on Jan 22, 2000. AC_MSG_CHECKING([for g++ -ffloat-store bug]) save_CFLAGS="$CFLAGS" CFLAGS="-x c++ -O2 -ffloat-store" AC_TRY_COMPILE([#include ], , [AC_MSG_RESULT(no)], [AC_DEFINE(__NO_MATH_INLINES) AC_MSG_RESULT(yes)]) CFLAGS="$save_CFLAGS" dnl We check for sys/filio.h because Solaris 2.5 defines FIONREAD there. dnl On that system, sys/ioctl.h will not include sys/filio.h unless dnl BSD_COMP is defined; just including sys/filio.h is simpler. AC_CHECK_HEADERS(unistd.h bstring.h sys/time.h sys/types.h fcntl.h sys/ioctl.h sys/filio.h sys/stat.h sys/select.h sys/socket.h netinet/in.h arpa/inet.h netdb.h pwd.h sys/config.h inttypes.h stdint.h) dnl We avoid AC_HEADER_DIRENT since we really only care about dirent.h dnl for now. If you change this, you also must update natFile.cc. AC_CHECK_HEADERS(dirent.h) AC_CHECK_TYPE([ssize_t], [int]) AC_MSG_CHECKING([for in_addr_t]) AC_TRY_COMPILE([#include #if STDC_HEADERS #include #include #endif #if HAVE_NETINET_IN_H #include #endif], [in_addr_t foo;], [AC_DEFINE([HAVE_IN_ADDR_T]) AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)]) AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h]) AC_TRY_COMPILE([#include ], [struct ip_mreq mreq;], [AC_DEFINE(HAVE_STRUCT_IP_MREQ) AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)]) AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h]) AC_TRY_COMPILE([#include ], [struct sockaddr_in6 addr6;], [AC_DEFINE(HAVE_INET6) AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)]) AC_MSG_CHECKING([for socklen_t in sys/socket.h]) AC_TRY_COMPILE([#include ], [socklen_t x = 5;], [AC_DEFINE(HAVE_SOCKLEN_T) AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)]) AC_MSG_CHECKING([for tm_gmtoff in struct tm]) AC_TRY_COMPILE([#include ], [struct tm tim; tim.tm_gmtoff = 0;], [AC_DEFINE(STRUCT_TM_HAS_GMTOFF) AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_MSG_CHECKING([for global timezone variable]) dnl FIXME: we don't want a link check here because that won't work dnl when cross-compiling. So instead we make an assumption that dnl the header file will mention timezone if it exists. AC_TRY_COMPILE([#include ], [long z2 = timezone;], [AC_DEFINE(HAVE_TIMEZONE) AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)])]) AC_FUNC_ALLOCA AC_CHECK_PROGS(PERL, perl, false) if test "$enable_sjlj_exceptions" = yes; then SIGNAL_HANDLER=include/default-signal.h else case "${host}" in i?86-*-linux*) SIGNAL_HANDLER=include/i386-signal.h ;; sparc-sun-solaris*) SIGNAL_HANDLER=include/sparc-signal.h ;; *) SIGNAL_HANDLER=include/default-signal.h ;; esac fi AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h) if test "${multilib}" = "yes"; then multilib_arg="--enable-multilib" else multilib_arg= fi here=`pwd` AC_SUBST(here) AC_OUTPUT(Makefile libgcj.spec libgcj-test.spec gcj/Makefile include/Makefile testsuite/Makefile, [if test -n "$CONFIG_FILES"; then ac_file=Makefile . ${libgcj_basedir}/../config-ml.in fi], srcdir=${srcdir} host=${host} target=${target} with_multisubdir=${with_multisubdir} ac_configure_args="${multilib_arg} ${ac_configure_args}" CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} libgcj_basedir=${libgcj_basedir} CC="${CC}" CXX="${CXX}" )