AC_INIT(otcl.c)

#XXX
V_PROG="otclsh"
V_ALL="$V_PROG"
V_SHM="-DUSE_SHM"

builtin(include, ./conf/configure.in.fns)

builtin(include, ./conf/configure.in.head)
builtin(include, ./conf/configure.in.tcl)
builtin(include, ./conf/configure.in.tk)
builtin(include, ./conf/configure.in.x11)

# These must follow configure.in.head because they mess
# with $*.
AC_PROG_RANLIB
AC_PROG_INSTALL

#
# deal with dynamic loading, code snarfed from tcl distribution
#

AC_MSG_CHECKING([system version (for dynamic loading)])
system=`uname -s`-`uname -r`
if test "$status" = 1 ; then
    AC_MSG_RESULT([unknown (can't find uname command)])
    system=unknown
else
    # Special check for weird MP-RAS system (uname returns weird
    # results, and the version is kept in special file).

    if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then
        system=MP-RAS-`awk '{print $3}' /etc/.relid'`
    fi
    AC_MSG_RESULT($system)
fi

case $system in
    Darwin-5.*|Darwin-6.*)
	SHLIB_CFLAGS="-fno-common -fPIC -pipe"
	SHLIB_LD="cc -dynamiclib -flat_namespace -undefined suppress"
	SHLIB_SUFFIX=".dylib"
	DL_LIBS=""
	SHLD_FLAGS="-Wl,-bind_at_load -Wl,-multiply_defined -Wl,suppress"
	;;
    Darwin-7.*|Darwin-8.*) # Remove `-mcpu=7450' for G5 (PPC970) optimization:
	SHLIB_CFLAGS="-fno-common -fPIC -pipe"
	SHLIB_LD="cc -dynamiclib -flat_namespace -undefined suppress"
	SHLIB_SUFFIX=".dylib"
	DL_LIBS=""
	SHLD_FLAGS="-Wl,-bind_at_load -Wl,-multiply_defined -Wl,suppress"
	;;
    HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*)
        SHLIB_CFLAGS="+z"
        SHLIB_LD="ld -b"
        SHLIB_SUFFIX=".sl"
        DL_LIBS="-ldld"
        SHLD_FLAGS="-Wl,-E"
        ;;
    IRIX-4.*)
        SHLIB_CFLAGS="-G0"
        SHLIB_LD="echo tclLdAout | tclsh -r -G 0"
        SHLIB_SUFFIX="..o"
        DL_LIBS=""
        SHLD_FLAGS="-D 08000000"
        ;;
    IRIX-5.*)
        SHLIB_CFLAGS=""
        SHLIB_LD="ld -shared -rdata_shared"
        SHLIB_SUFFIX=".so"
        DL_LIBS=""
        SHLD_FLAGS=""
        ;;
    Linux*)
        SHLIB_CFLAGS="-fpic"
        SHLIB_LD="ld -shared"
        SHLIB_SUFFIX=".so"
        DL_LIBS="-ldl"
        SHLD_FLAGS=""
        ;;
    MP-RAS-02*)
        SHLIB_CFLAGS="-K PIC"
        SHLIB_LD="cc -G"
        SHLIB_SUFFIX=".so"
        DL_LIBS="-ldl"
        SHLD_FLAGS=""
        ;;
    MP-RAS-*)
        SHLIB_CFLAGS="-K PIC"
        SHLIB_LD="cc -G"
        SHLIB_SUFFIX=".so"
        DL_LIBS="-ldl"
        SHLD_FLAGS="-Wl,-Bexport"
        ;;
    NetBSD-*|FreeBSD-*)
        # Not available on all versions:  check for include file.
        if test -e /usr/include/dlfcn.h; then
            SHLIB_CFLAGS="-fpic"
            SHLIB_LD="ld -Bshareable"
            SHLIB_SUFFIX=".so"
            DL_LIBS=""
            SHLD_FLAGS=""
        else
            echo "NetBSD/FreeBSD with no support for dynamic loading"
            echo " or shared libraries on this system."
            SHLIB_CFLAGS=""
            SHLIB_LD=":  Skipping shared libaries"
            SHLIB_SUFFIX=".so"
            DL_LIBS=""
            SHLD_FLAGS=""
        fi
        ;;
    OSF-1.*)
        SHLIB_CFLAGS="-fpic"
        SHLIB_LD='ld -shared -expect_unresolved "*"'
        SHLIB_SUFFIX=".so"
        DL_LIBS=""
        SHLD_FLAGS=""
        ;;
    OSF1-V*)
        SHLIB_CFLAGS=""
        SHLIB_LD='ld -shared -expect_unresolved "*"'
        SHLIB_SUFFIX=".so"
        DL_LIBS=""
        SHLD_FLAGS=""
        ;;
    RISCos-*)
        SHLIB_CFLAGS="-G0"
        SHLIB_LD="echo tclLdAout | tclsh -r -G 0"
        SHLIB_SUFFIX="..o"
        DL_LIBS=""
        SHLD_FLAGS="-D 08000000"
        ;;
    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.
        SHLIB_CFLAGS="-Kpic -belf"
        SHLIB_LD="ld -G -z text"
        SHLIB_SUFFIX=".so"
        DL_LIBS=""
        SHLD_FLAGS="-belf -Wl,-Bexport"
        ;;
    SunOS-4*)
        SHLIB_CFLAGS="-pic"
        SHLIB_LD="ld -assert pure-text"
        SHLIB_SUFFIX=".so"
        DL_LIBS="-ldl"
        SHLD_FLAGS=""
        ;;
    SunOS-5*)
        SHLIB_CFLAGS="-K pic"
        SHLIB_LD="/usr/ccs/bin/ld -G -z text"
        SHLIB_SUFFIX=".so"
        DL_LIBS="-ldl"
        SHLD_FLAGS=""
        ;;
    ULTRIX-4.*)
        SHLIB_CFLAGS="-G0"
        SHLIB_LD="echo tclLdAout | tclsh -r -G 0"
        SHLIB_SUFFIX="..o"
        DL_LIBS=""
        SHLD_FLAGS="-D 08000000"
        ;;
    UNIX_SV*)
        SHLIB_CFLAGS="-K PIC"
        SHLIB_LD="cc -G"
        SHLIB_SUFFIX=".so"
        DL_LIBS="-ldl"
        SHLD_FLAGS="-Wl,-Bexport"
        ;;
    *)
        echo "Can't figure out how to do dynamic loading or shared libraries"
        echo "on this system."
        SHLIB_CFLAGS=""
        SHLIB_LD=":  Skipping shared libaries"
        SHLIB_SUFFIX=".so"
        DL_LIBS="" 
        SHLD_FLAGS=""
        ;;
esac

if test "$CC" = "gcc" -a "X$SHLIB_CFLAGS" = "X"; then
    SHLIB_CFLAGS="-fpic"
fi

AC_SUBST(SHLIB_CFLAGS)
AC_SUBST(SHLIB_LD)
AC_SUBST(SHLIB_SUFFIX)
AC_SUBST(SHLD_FLAGS)
AC_SUBST(DL_LIBS)

#
# decide where to install the shared library
#

INST_OLIBSH="${prefix}/lib"
if test -d ${prefix}/shlib ; then
  INST_OLIBSH="${prefix}/shlib"
fi
AC_SUBST(INST_OLIBSH)

NS_FNS_TAIL
builtin(include, ./conf/configure.in.tail)