tcl.m4

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	    else
	        SHLIB_LD="ld -non_shared"
	    fi
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	OSF1-V*)
	    # Digital OSF/1
	    SHLIB_CFLAGS=""
	    if test "$SHARED_BUILD" = "1" ; then
	        SHLIB_LD='ld -shared -expect_unresolved "*"'
	    else
	        SHLIB_LD='ld -non_shared -expect_unresolved "*"'
	    fi
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	    LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
	    if test "$GCC" = "yes" ; then
		CFLAGS="$CFLAGS -mieee"
            else
		CFLAGS="$CFLAGS -DHAVE_TZSET -std1 -ieee"
	    fi
	    # see pthread_intro(3) for pthread support on osf1, k.furukawa
	    if test "${TCL_THREADS}" = "1" ; then
		CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
		CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
		LIBS=`echo $LIBS | sed s/-lpthreads//`
		if test "$GCC" = "yes" ; then
		    LIBS="$LIBS -lpthread -lmach -lexc"
		else
		    CFLAGS="$CFLAGS -pthread"
		    LDFLAGS="$LDFLAGS -pthread"
		fi
	    fi

	    ;;
	QNX-6*)
	    # QNX RTP
	    # This may work for all QNX, but it was only reported for v6.
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_LD="ld -Bshareable -x"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    # dlopen is in -lc on QNX
	    DL_LIBS=""
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	SCO_SV-3.2*)
	    # Note, dlopen is available only on SCO 3.2.5 and greater. However,
	    # this test works, since "uname -s" was non-standard in 3.2.4 and
	    # below.
	    if test "$GCC" = "yes" ; then
	    	SHLIB_CFLAGS="-fPIC -melf"
	    	LDFLAGS="$LDFLAGS -melf -Wl,-Bexport"
	    else
	    	SHLIB_CFLAGS="-Kpic -belf"
	    	LDFLAGS="$LDFLAGS -belf -Wl,-Bexport"
	    fi
	    SHLIB_LD="ld -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	SINIX*5.4*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	SunOS-4*)
	    SHLIB_CFLAGS="-PIC"
	    SHLIB_LD="ld"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}

	    # SunOS can't handle version numbers with dots in them in library
	    # specs, like -ltcl7.5, so use -ltcl75 instead.  Also, it
	    # requires an extra version number at the end of .so file names.
	    # So, the library has to have a name like libtcl75.so.1.0

	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.1.0'
	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
	    TCL_LIB_VERSIONS_OK=nodots
	    ;;
	SunOS-5.[[0-6]])
	    # Careful to not let 5.10+ fall into this case

	    # Note: If _REENTRANT isn't defined, then Solaris
	    # won't define thread-safe library routines.

	    AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
		[Do we really want to follow the standard? Yes we do!])

	    SHLIB_CFLAGS="-KPIC"

	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
	    # symbols when dynamically loaded into tclsh.

	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    if test "$GCC" = "yes" ; then
		SHLIB_LD="$CC -shared"
		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	    else
		SHLIB_LD="/usr/ccs/bin/ld -G -z text"
		CC_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	    fi
	    ;;
	SunOS-5*)
	    # Note: If _REENTRANT isn't defined, then Solaris
	    # won't define thread-safe library routines.

	    AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
		[Do we really want to follow the standard? Yes we do!])

	    SHLIB_CFLAGS="-KPIC"

	    # Check to enable 64-bit flags for compiler/linker
	    if test "$do64bit" = "yes" ; then
		arch=`isainfo`
		if test "$arch" = "sparcv9 sparc" ; then
			if test "$GCC" = "yes" ; then
			    if test "`gcc -dumpversion | awk -F. '{print [$]1}'`" -lt "3" ; then
				AC_MSG_WARN([64bit mode not supported with GCC < 3.2 on $system])
			    else
				do64bit_ok=yes
				CFLAGS="$CFLAGS -m64 -mcpu=v9"
				LDFLAGS="$LDFLAGS -m64 -mcpu=v9"
				SHLIB_CFLAGS="-fPIC"
			    fi
			else
			    do64bit_ok=yes
			    if test "$do64bitVIS" = "yes" ; then
				CFLAGS="$CFLAGS -xarch=v9a"
			    	LDFLAGS_ARCH="-xarch=v9a"
			    else
				CFLAGS="$CFLAGS -xarch=v9"
			    	LDFLAGS_ARCH="-xarch=v9"
			    fi
			    # Solaris 64 uses this as well
			    #LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH_64"
			fi
		elif test "$arch" = "amd64 i386" ; then
		    if test "$GCC" = "yes" ; then
			AC_MSG_WARN([64bit mode not supported with GCC on $system])
		    else
			do64bit_ok=yes
			CFLAGS="$CFLAGS -xarch=amd64"
			LDFLAGS="$LDFLAGS -xarch=amd64"
		    fi
		else
		    AC_MSG_WARN([64bit mode not supported for $arch])
		fi
	    fi
	    
	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
	    # symbols when dynamically loaded into tclsh.

	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    if test "$GCC" = "yes" ; then
		SHLIB_LD="$CC -shared"
		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
		if test "$do64bit_ok" = "yes" ; then
		    # We need to specify -static-libgcc or we need to
		    # add the path to the sparv9 libgcc.
		    # JH: static-libgcc is necessary for core Tcl, but may
		    # not be necessary for extensions.
		    SHLIB_LD="$SHLIB_LD -m64 -mcpu=v9 -static-libgcc"
		    # for finding sparcv9 libgcc, get the regular libgcc
		    # path, remove so name and append 'sparcv9'
		    #v9gcclibdir="`gcc -print-file-name=libgcc_s.so` | ..."
		    #CC_SEARCH_FLAGS="${CC_SEARCH_FLAGS},-R,$v9gcclibdir"
		fi
	    else
		SHLIB_LD="/usr/ccs/bin/ld -G -z text"
		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
	    fi
	    ;;
	UNIX_SV* | UnixWare-5*)
	    SHLIB_CFLAGS="-KPIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    # Some UNIX_SV* systems (unixware 1.1.2 for example) have linkers
	    # that don't grok the -Bexport option.  Test that it does.
	    AC_CACHE_CHECK([for ld accepts -Bexport flag], tcl_cv_ld_Bexport, [
		hold_ldflags=$LDFLAGS
		LDFLAGS="$LDFLAGS -Wl,-Bexport"
		AC_TRY_LINK(, [int i;], tcl_cv_ld_Bexport=yes, tcl_cv_ld_Bexport=no)
	        LDFLAGS=$hold_ldflags])
	    if test $tcl_cv_ld_Bexport = yes; then
		LDFLAGS="$LDFLAGS -Wl,-Bexport"
	    fi
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
    esac

    if test "$do64bit" = "yes" -a "$do64bit_ok" = "no" ; then
	AC_MSG_WARN([64bit support being disabled -- don't know magic for this platform])
    fi

    # Step 4: disable dynamic loading if requested via a command-line switch.

    AC_ARG_ENABLE(load,
	AC_HELP_STRING([--disable-load],
	    [disallow dynamic loading and "load" command (default: enabled)]),
	[tcl_ok=$enableval], [tcl_ok=yes])
    if test "$tcl_ok" = "no"; then
	DL_OBJS=""
    fi

    if test "x$DL_OBJS" != "x" ; then
	BUILD_DLTEST="\$(DLTEST_TARGETS)"
    else
	echo "Can't figure out how to do dynamic loading or shared libraries"
	echo "on this system."
	SHLIB_CFLAGS=""
	SHLIB_LD=""
	SHLIB_SUFFIX=""
	DL_OBJS="tclLoadNone.o"
	DL_LIBS=""
	LDFLAGS="$LDFLAGS_ORIG"
	CC_SEARCH_FLAGS=""
	LD_SEARCH_FLAGS=""
	BUILD_DLTEST=""
    fi
    LDFLAGS="$LDFLAGS $LDFLAGS_ARCH"

    # If we're running gcc, then change the C flags for compiling shared
    # libraries to the right flags for gcc, instead of those for the
    # standard manufacturer compiler.

    if test "$DL_OBJS" != "tclLoadNone.o" ; then
	if test "$GCC" = "yes" ; then
	    case $system in
		AIX-*)
		    ;;
		BSD/OS*)
		    ;;
		IRIX*)
		    ;;
		NetBSD-*|FreeBSD-*)
		    ;;
		Darwin-*)
		    ;;
		SCO_SV-3.2*)
		    ;;
		windows)
		    ;;
		*)
		    SHLIB_CFLAGS="-fPIC"
		    ;;
	    esac
	fi
    fi

    if test "$SHARED_LIB_SUFFIX" = "" ; then
	SHARED_LIB_SUFFIX='${PACKAGE_VERSION}${SHLIB_SUFFIX}'
    fi
    if test "$UNSHARED_LIB_SUFFIX" = "" ; then
	UNSHARED_LIB_SUFFIX='${PACKAGE_VERSION}.a'
    fi

    AC_SUBST(DL_LIBS)

    AC_SUBST(CFLAGS_DEBUG)
    AC_SUBST(CFLAGS_OPTIMIZE)
    AC_SUBST(CFLAGS_WARNING)

    AC_SUBST(STLIB_LD)
    AC_SUBST(SHLIB_LD)

    AC_SUBST(SHLIB_LD_LIBS)
    AC_SUBST(SHLIB_CFLAGS)

    AC_SUBST(LD_LIBRARY_PATH_VAR)

    # These must be called after we do the basic CFLAGS checks and
    # verify any possible 64-bit or similar switches are necessary
    TEA_TCL_EARLY_FLAGS
    TEA_TCL_64BIT_FLAGS
])

#--------------------------------------------------------------------
# TEA_SERIAL_PORT
#
#	Determine which interface to use to talk to the serial port.
#	Note that #include lines must begin in leftmost column for
#	some compilers to recognize them as preprocessor directives,
#	and some build environments have stdin not pointing at a
#	pseudo-terminal (usually /dev/null instead.)
#
# Arguments:
#	none
#	
# Results:
#
#	Defines only one of the following vars:
#		HAVE_SYS_MODEM_H
#		USE_TERMIOS
#		USE_TERMIO
#		USE_SGTTY
#
#--------------------------------------------------------------------

AC_DEFUN(TEA_SERIAL_PORT, [
    AC_CHECK_HEADERS(sys/modem.h)
    AC_CACHE_CHECK([termios vs. termio vs. sgtty], tcl_cv_api_serial, [
    AC_TRY_RUN([
#include <termios.h>

int main() {
    struct termios t;
    if (tcgetattr(0, &t) == 0) {
	cfsetospeed(&t, 0);
	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
    if test $tcl_cv_api_serial = no ; then
	AC_TRY_RUN([
#include <termio.h>

int main() {
    struct termio t;
    if (ioctl(0, TCGETA, &t) == 0) {
	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
}], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
    fi
    if test $tcl_cv_api_serial = no ; then
	AC_TRY_RUN([
#include <sgtty.h>

int main() {
    struct sgttyb t;
    if (ioctl(0, TIOCGETP, &t) == 0) {
	t.sg_ospeed = 0;
	t.sg_flags |= ODDP | EVENP | RAW;
	return 0;
    }
    return 1;
}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
    fi
    if test $tcl_cv_api_serial = no ; then
	AC_TRY_RUN([
#include <termios.h>
#include <errno.h>

int main() {
    struct termios t;
    if (tcgetattr(0, &t) == 0
	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
	cfsetospeed(&t, 0);
	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
    fi
    if test $tcl_cv_api_serial = no; then
	AC_TRY_RUN([
#include <termio.h>
#include <errno.h>

int main() {
    struct termio t;
    if (ioctl(0, TCGETA, &t) == 0
	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
    }], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
    fi
    if test $tcl_cv_api_serial = no; then
	AC_TRY_RUN([
#include <sgtty.h>
#include <errno.h>

int main() {
    struct sgttyb t;
    if (ioctl(0, TIOCGETP, &t) == 0