configure.ac

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        # A classpath that includes . is needed to check for Java
	CLASSPATH=".:$CLASSPATH"
	export CLASSPATH
	AC_PROG_JAVAC
	AC_PROG_JAR
	AC_PROG_JAVA
	AC_JNI_INCLUDE_DIR

	AC_MSG_CHECKING(java version)
        case "$JAVA" in
	*kaffe* )
		JAVA_VERSION=`$JAVA -version 2>&1 |
			sed -e '/Java Version:/!d' -e 's/.*Java Version: \([[^ 	]]*\)[[ 	]]*/\1/'` ;;
	* )	JAVA_VERSION=`$JAVA -version 2>&1 |
        	       	sed -e '/ version /!d' -e 's/.*"\(.*\)".*/\1/'` ;;
	esac
	AC_MSG_RESULT($JAVA_VERSION)
	case "$JAVA_VERSION" in
	1.[[3456789]]* | 1.[[1-9]][[0-9]]* | [[23456789]]* ) ;;
	* )
		AC_MSG_ERROR([Java version 1.3 or higher required, got $JAVA_VERSION]) ;;
	esac

	for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS
	do
		CPPFLAGS="$CPPFLAGS -I$JNI_INCLUDE_DIR"
	done

	ADDITIONAL_LANG="$ADDITIONAL_LANG java"
	INSTALL_LIBS="$INSTALL_LIBS \$(libjso_target)"
else
	JAVAC=nojavac
fi

# MinGW support.
if test "$db_cv_mingw" = "yes"; then
	OSDIR=os_win32
	PATH_SEPARATOR="\\\\/:"

	AC_DEFINE(DB_WIN32)
	AC_DEFINE(STDC_HEADERS)
else
	OSDIR=os
	PATH_SEPARATOR="/"
fi

# Checks for include files, structures, C types.
AC_HEADER_STAT
AC_HEADER_TIME
AC_HEADER_DIRENT
AC_CHECK_HEADERS(sys/select.h sys/time.h sys/fcntl.h)
AC_CHECK_MEMBERS([struct stat.st_blksize])
AM_TYPES

AC_CACHE_CHECK([for ANSI C exit success/failure values], db_cv_exit_defines, [
AC_TRY_COMPILE([#include <stdlib.h>], return (EXIT_SUCCESS);,
    [db_cv_exit_defines=yes], [db_cv_exit_defines=no])])
if test "$db_cv_exit_defines" = "yes"; then
	AC_DEFINE(HAVE_EXIT_SUCCESS)
	AH_TEMPLATE(HAVE_EXIT_SUCCESS,
    [Define to 1 if you have EXIT_SUCCESS/EXIT_FAILURE #defines.])
fi

# Test for various functions/libraries -- do tests that change library values
# first.
#
# The Berkeley DB library calls fdatasync, and it's only available in -lrt on
# Solaris.  See if we can find it either without additional libraries or in
# -lrt.  If fdatasync is found in -lrt, add -lrt to the Java and Tcl shared
# library link lines.
AC_SEARCH_LIBS(fdatasync, rt, [dnl
    if test "$ac_cv_search_fdatasync" != "none required" ; then
        LIBJSO_LIBS="$LIBJSO_LIBS -lrt";
        LIBSO_LIBS="$LIBSO_LIBS -lrt";
        LIBTSO_LIBS="$LIBTSO_LIBS -lrt";
    fi])

# The test and example programs use the sched_yield function, taken from -lrt
# on Solaris.
AC_SEARCH_LIBS(sched_yield, rt)

# !!!
# We can't check for pthreads in the same way we did the test for sched_yield
# because the Solaris C library includes pthread interfaces which are not
# inter-process safe.  For that reason we always add -lpthread if we find a
# pthread library.
#
# We can't depend on any specific call existing (pthread_create, for example),
# as it may be #defined in an include file -- OSF/1 (Tru64) has this problem.
AC_HAVE_LIBRARY(pthread, TEST_LIBS="$TEST_LIBS -lpthread")

# !!!
# We could be more exact about whether these libraries are needed, but don't
# bother -- if they exist, we load them, it's only the test programs anyway.
AC_HAVE_LIBRARY(m, TEST_LIBS="$TEST_LIBS -lm")
AC_HAVE_LIBRARY(socket, TEST_LIBS="$TEST_LIBS -lsocket")
AC_HAVE_LIBRARY(nsl, TEST_LIBS="$TEST_LIBS -lnsl")

# Check for mutexes.
# We do this here because it changes $LIBS.
AM_DEFINE_MUTEXES

# Checks for system functions for which we have replacements.
#
# XXX
# The only portable getcwd call is getcwd(char *, size_t), where the
# buffer is non-NULL -- Solaris can't handle a NULL buffer, and they
# deleted getwd().
AC_REPLACE_FUNCS(getcwd getopt memcmp memcpy memmove raise)
AC_REPLACE_FUNCS(strcasecmp strdup strerror strtol strtoul)

# Check for system functions we optionally use.
AC_CHECK_FUNCS(_fstati64 clock_gettime directio fdatasync ftruncate getrusage)
AC_CHECK_FUNCS(gettimeofday getuid pstat_getdynamic rand sched_yield)
AC_CHECK_FUNCS(select snprintf srand sysconf vsnprintf yield)

# Pread/pwrite.
# HP-UX has pread/pwrite, but it doesn't work with largefile support.
# NCR's version of System V R 4.3 has pread/pwrite symbols, but no support.
case "$host_os-$host_vendor" in
hpux*|sysv4.3*-ncr)
	AC_MSG_WARN(
	    [pread/pwrite interfaces ignored on $host_os-$host_vendor.]);;
*)
	AC_CHECK_FUNCS(pread pwrite);;
esac

# Check for fcntl(2) to deny child process access to file descriptors.
AC_CACHE_CHECK([for fcntl/F_SETFD], db_cv_fcntl_f_setfd, [
AC_TRY_LINK([
#include <sys/types.h>
#include <fcntl.h>], [
	fcntl(1, F_SETFD, 1);
], [db_cv_fcntl_f_setfd=yes], [db_cv_fcntl_f_setfd=no])])
if test "$db_cv_fcntl_f_setfd" = "yes"; then
	AC_DEFINE(HAVE_FCNTL_F_SETFD)
	AH_TEMPLATE(HAVE_FCNTL_F_SETFD,
    [Define to 1 if fcntl/F_SETFD denies child access to file descriptors.])
fi

# A/UX has a broken getopt(3).
case "$host_os" in
aux*)	AC_LIBOBJ([getopt]);;
esac

# Linux has a broken O_DIRECT flag, but you can't detect it at configure time.
# Linux and SGI require buffer alignment we may not match, otherwise writes
# will fail.  Default to not using the O_DIRECT flag.
if test "$db_cv_o_direct" = "yes"; then
	AC_CACHE_CHECK([for open/O_DIRECT], db_cv_open_o_direct, [
	AC_TRY_LINK([
	#include <sys/types.h>
	#include <fcntl.h>], [
		open("a", O_RDONLY | O_DIRECT, 0);
	], [db_cv_open_o_direct=yes], [db_cv_open_o_direct=no])])
	if test \
	    "$db_cv_o_direct" = "yes" -a "$db_cv_open_o_direct" = "yes"; then
		AC_DEFINE(HAVE_O_DIRECT)
		AH_TEMPLATE(HAVE_O_DIRECT,
		    [Define to 1 if you have the O_DIRECT flag.])
	fi
fi

# Check for largefile support.
AC_SYS_LARGEFILE

# Figure out how to create shared regions.
#
# First, we look for mmap.
#
# BSD/OS has mlock(2), but it doesn't work until the 4.1 release.
#
# Nextstep (version 3.3) apparently supports mmap(2) (the mmap symbol
# is defined in the C library) but does not support munmap(2).  Don't
# try to use mmap if we can't find munmap.
#
# Ultrix has mmap(2), but it doesn't work.
mmap_ok=no
case "$host_os" in
bsdi3*|bsdi4.0)
	AC_MSG_WARN([mlock(2) interface ignored on $host_os-$host_vendor.])
	mmap_ok=yes
	AC_CHECK_FUNCS(mmap munmap, , mmap_ok=no);;
ultrix*)
	AC_MSG_WARN([mmap(2) interface ignored on $host_os-$host_vendor.]);;
*)
	mmap_ok=yes
	AC_CHECK_FUNCS(mlock munlock)
	AC_CHECK_FUNCS(mmap munmap, , mmap_ok=no);;
esac

# Second, we look for shmget.
#
# SunOS has the shmget(2) interfaces, but there appears to be a missing
# #include <debug/debug.h> file, so we ignore them.
shmget_ok=no
case "$host_os" in
sunos*)
	AC_MSG_WARN([shmget(2) interface ignored on $host_os-$host_vendor.]);;
*)
	shmget_ok=yes
	AC_CHECK_FUNCS(shmget, , shmget_ok=no);;
esac

# We require either mmap/munmap(2) or shmget(2).
if test "$mmap_ok" = "no" -a "$shmget_ok" = "no"; then
	AC_MSG_WARN([Neither mmap/munmap(2) or shmget(2) library functions.])
fi

# Optional RPC client/server.
if test "$db_cv_rpc" = "yes"; then
	AM_RPC_CONFIGURE
fi

# Optional Tcl support.
if test "$db_cv_tcl" = "yes"; then
	AM_TCL_LOAD
fi

# Optional sequence code.
AM_SEQUENCE_CONFIGURE

# Optional DB 1.85 compatibility API.
if test "$db_cv_compat185" = "yes"; then
	ADDITIONAL_INCS="db_185.h $ADDITIONAL_INCS"

	ADDITIONAL_OBJS="db185${o} $ADDITIONAL_OBJS"
fi

# Optional utilities.
if test "$db_cv_dump185" = "yes"; then
	ADDITIONAL_PROGS="db_dump185 $ADDITIONAL_PROGS"
fi

# You can disable pieces of functionality to save space.
#
# Btree is always configured: it is the standard method, and Hash off-page
# duplicates require it.
ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(BTREE_OBJS)"

# Hash can be disabled.
if test "$db_cv_build_hash" = "yes"; then
	AC_DEFINE(HAVE_HASH)
	AH_TEMPLATE(HAVE_HASH, [Define to 1 if building Hash access method.])
	ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(HASH_OBJS)"
	if test "$db_cv_build_verify" = "yes"; then
		ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(HASH_VRFY_OBJS)"
	fi
else
	ADDITIONAL_OBJS="$ADDITIONAL_OBJS hash_stub${o}"
fi

# Queue can be disabled.
if test "$db_cv_build_queue" = "yes"; then
	AC_DEFINE(HAVE_QUEUE)
	AH_TEMPLATE(HAVE_QUEUE, [Define to 1 if building Queue access method.])
	ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(QUEUE_OBJS)"
	if test "$db_cv_build_verify" = "yes"; then
		ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(QUEUE_VRFY_OBJS)"
	fi
else
	ADDITIONAL_OBJS="$ADDITIONAL_OBJS qam_stub${o}"
fi

# Replication can be disabled.
if test "$db_cv_build_replication" = "yes"; then
	AC_DEFINE(HAVE_REPLICATION)
	AH_TEMPLATE(HAVE_REPLICATION,
	    [Define to 1 if building replication support.])
	ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(REP_OBJS)"
else
	ADDITIONAL_OBJS="$ADDITIONAL_OBJS rep_stub${o}"
fi

# The statistics code can be disabled.
if test "$db_cv_build_statistics" = "yes"; then
	AC_DEFINE(HAVE_STATISTICS)
	AH_TEMPLATE(HAVE_STATISTICS,
	    [Define to 1 if building statistics support.])
fi

# The verification code can be disabled.
if test "$db_cv_build_verify" = "yes"; then
	AC_DEFINE(HAVE_VERIFY)
	AH_TEMPLATE(HAVE_VERIFY,
	    [Define to 1 if building access method verification support.])
	ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(BTREE_VRFY_OBJS)"
else
	ADDITIONAL_OBJS="$ADDITIONAL_OBJS db_vrfy_stub${o}"
fi

# The crypto code can be disabled.
if test -d "$srcdir/../crypto" -a "$db_cv_build_cryptography" = "yes"; then
	AC_DEFINE(HAVE_CRYPTO)
	AH_TEMPLATE(HAVE_CRYPTO,
    [Define to 1 if Berkeley DB release includes strong cryptography.])

	CRYPTO_OBJS="\$(CRYPTO_OBJS)"
else
	CRYPTO_OBJS="crypto_stub${o}"
fi

# We need to add the additional object files into the Makefile with the correct
# suffix.  We can't use $LTLIBOBJS itself, because that variable has $U encoded
# in it for automake, and that's not what we want.  See SR #7227 for additional
# information.
#
# XXX: I'm not sure this is correct.
REPLACEMENT_OBJS=`echo "$LIB@&t@OBJS" |
		 sed "s,\.[[^.]]* ,$o ,g;s,\.[[^.]]*$,$o,"`

# This is necessary so that .o files in LIBOBJS are also built via
# the ANSI2KNR-filtering rules.
LIB@&t@OBJS=`echo "$LIB@&t@OBJS" |
	     sed 's,\.[[^.]]* ,$U&,g;s,\.[[^.]]*$,$U&,'`
LTLIBOBJS=`echo "$LIB@&t@OBJS" |
	   sed 's,\.[[^.]]* ,.lo ,g;s,\.[[^.]]*$,.lo,'`
AC_SUBST(LTLIBOBJS)

# Initial output file list.
CREATE_LIST="Makefile
    db_cxx.h:$srcdir/../dbinc/db_cxx.in
    db_int.h:$srcdir/../dbinc/db_int.in
    include.tcl:$srcdir/../test/include.tcl"

# MinGW needs win_db.h.
if test "$db_cv_mingw" = "yes"; then
CREATE_LIST="$CREATE_LIST
    win_db.h:$srcdir/win_db.in"
fi

# Create the db.h file from a source file, a list of global function
# prototypes, and, if configured for unique names, a list of #defines
# to do DB_VERSION_UNIQUE_NAME substitution.
if test "$db_cv_uniquename" = "yes"; then
	CREATE_LIST="$CREATE_LIST
	db.h:$srcdir/../dbinc/db.in:$srcdir/../dbinc_auto/ext_def.in:$srcdir/../dbinc_auto/ext_prot.in"
else
	CREATE_LIST="$CREATE_LIST
	db.h:$srcdir/../dbinc/db.in:$srcdir/../dbinc_auto/ext_prot.in"
fi

# If configured for unique names, create the db_int_uext.h file (which
# does the DB_VERSION_UNIQUE_NAME substitution), which is included by
# the db_int.h file.
if test "$db_cv_uniquename" = "yes"; then
	CREATE_LIST="$CREATE_LIST
	db_int_def.h:$srcdir/../dbinc_auto/int_def.in"
	db_int_def='#include "db_int_def.h"'
fi

# Create the db_185.h and db185_int.h files from source files, a list of
# global function prototypes, and, if configured for unique names, a list
# of #defines to do DB_VERSION_UNIQUE_NAME substitution.
if test "$db_cv_compat185" = "yes"; then
	if test "$db_cv_uniquename" = "yes"; then
		CREATE_LIST="$CREATE_LIST
		db_185.h:$srcdir/../dbinc/db_185.in:$srcdir/../dbinc_auto/ext_185_def.in:$srcdir/../dbinc_auto/ext_185_prot.in
		db185_int.h:$srcdir/../db185/db185_int.in:$srcdir/../dbinc_auto/ext_185_def.in:$srcdir/../dbinc_auto/ext_185_prot.in"
	else
		CREATE_LIST="$CREATE_LIST
		db_185.h:$srcdir/../dbinc/db_185.in:$srcdir/../dbinc_auto/ext_185_prot.in
		db185_int.h:$srcdir/../db185/db185_int.in:$srcdir/../dbinc_auto/ext_185_prot.in"
	fi
fi

AC_CONFIG_FILES($CREATE_LIST)
AC_OUTPUT