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dnl This whole file is CYGNUS LOCAL

dnl     This file is an input file used by the GNU "autoconf" program to

dnl     generate the file "configure", which is run during [incr Tcl]

dnl installation to configure the system for the local environment.

AC_PREREQ(2.5)

AC_INIT(../generic/itcl.h)

AC_CONFIG_AUX_DIR(../../../)

AC_CANONICAL_HOST

AC_PROG_RANLIB

AC_PROG_CC

AC_OBJEXT

NM=${NM-nm}

AC_SUBST(NM)

AS=${AS-as}

AC_SUBST(AS)

LD=${LD-ld}

AC_SUBST(LD)

DLLTOOL=${DLLTOOL-dlltool}

AC_SUBST(DLLTOOL)

WINDRES=${WINDRES-windres}

AC_SUBST(WINDRES)

AC_PROG_INSTALL

# needed for the subtle differences between cygwin and mingw32

case "${host}" in

*-*-cygwin*)

        TCL_ALLOC_OBJ=

        DLL_LDLIBS=-lcygwin

        DLL_LDFLAGS='-nostartfiles -Wl,--dll'

        ;;

*-*-mingw32*)

        TCL_ALLOC_OBJ='$(TMPDIR)/tclAlloc.o'

        DLL_LDLIBS=

        DLL_LDFLAGS='-mdll'

        ;;

esac

AC_SUBST(DLL_LDFLAGS)

AC_SUBST(DLL_LDLIBS)

ITCL_VERSION=3.0

ITCL_MAJOR_VERSION=3

ITCL_MINOR_VERSION=0

VERSION=${ITCL_MAJOR_VERSION}${ITCL_MINOR_VERSION}

if test "${prefix}" = "NONE"; then

    prefix=/usr/local

fi

if test "${exec_prefix}" = "NONE"; then

    exec_prefix=$prefix

fi

# -----------------------------------------------------------------------

#   Set up a new default --prefix.  If a previous installation of

#   [incr Tcl] can be found searching $PATH use that directory.

# -----------------------------------------------------------------------

AC_PREFIX_DEFAULT(/usr/local)

AC_PREFIX_PROGRAM(itkwish)

if test "${prefix}" = "NONE"; then

    prefix=/usr/local

fi

if test "${exec_prefix}" = "NONE"; then

    exec_prefix=$prefix

fi

# -----------------------------------------------------------------------

BUILD_DIR=`pwd`

ITCL_SRC_DIR=`cd $srcdir/..; pwd`

if ! test "$GCC" = yes; then

    tmp="`cygpath --windows $ITCL_SRC_DIR`"

    ITCL_SRC_DIR="`echo $tmp | sed -e s#\\\\\\\\#/#g`"

fi

cd ${BUILD_DIR}

AC_ARG_ENABLE(gcc, [  --enable-gcc            allow use of gcc if available],

    [itcl_ok=$enableval], [itcl_ok=no])

if test "$itcl_ok" = "yes"; then

    AC_PROG_CC

else

    CC=${CC-cc}

AC_SUBST(CC)

fi

AC_HAVE_HEADERS(unistd.h limits.h)

#--------------------------------------------------------------------

#   See if there was a command-line option for where Tcl is;  if

#   not, assume that its top-level directory is a sibling of ours.

# CYGNUS LOCAL - Actually, tcl is one level higher - a sibling of the

# itcl directory that contains itcl proper, itk & iwidgets.

#--------------------------------------------------------------------

AC_ARG_WITH(tcl, [  --with-tcl=DIR          use Tcl 8.0 binaries from DIR],

        TCL_BIN_DIR=$withval, TCL_BIN_DIR=`cd ../../../tcl/win; pwd`)

if test ! -f $TCL_BIN_DIR/../unix/tclConfig.sh; then

    TCL_BIN_DIR=`cd ../../../tcl8.1/win;pwd`

fi

if test ! -f $TCL_BIN_DIR/../unix/tclConfig.sh; then

    AC_MSG_ERROR(There's no tclConfig.sh in $TCL_BIN_DIR;  perhaps you didn't specify the Tcl *build* directory (not the toplevel Tcl directory) or you forgot to configure Tcl?)

fi

#--------------------------------------------------------------------

#   Read in configuration information generated by Tcl for shared

#   libraries, and arrange for it to be substituted into our

#   Makefile.

#--------------------------------------------------------------------

file=$TCL_BIN_DIR/../unix/tclConfig.sh

. $file

dnl CFLAGS=$TCL_CFLAGS

SHLIB_CFLAGS=$TCL_SHLIB_CFLAGS

SHLIB_LD=$TCL_SHLIB_LD

SHLIB_LD_LIBS=$TCL_SHLIB_LD_LIBS

SHLIB_SUFFIX=$TCL_SHLIB_SUFFIX

SHLIB_VERSION=$TCL_SHLIB_VERSION

DL_LIBS=$TCL_DL_LIBS

LD_FLAGS=$TCL_LD_FLAGS

ITCL_LD_SEARCH_FLAGS=$TCL_LD_SEARCH_FLAGS

AC_MSG_CHECKING([whether C compiler is gcc])

AC_CACHE_VAL(itcl_cv_prog_gcc, [

    AC_EGREP_CPP(_cc_is_gcc_, [

#ifdef __GNUC__

_cc_is_gcc_

#endif

],      [itcl_cv_prog_gcc=yes], [itcl_cv_prog_gcc=no])])

AC_MSG_RESULT([$itcl_cv_prog_gcc])

if test -z "$CFLAGS" ; then

    CFLAGS="-O"

fi

if test "$itcl_cv_prog_gcc" = "yes" ; then

    CFLAGS="$CFLAGS -Wshadow -Wtraditional -Wall"

fi

AC_MSG_CHECKING([default compiler flags])

AC_ARG_WITH(cflags, [  --with-cflags=FLAGS     set compiler flags to FLAGS],

    [CFLAGS="$with_cflags"])

AC_MSG_RESULT([$CFLAGS])

#--------------------------------------------------------------------

#   Supply a substitute for stdlib.h if it doesn't define strtol,

#   strtoul, or strtod (which it doesn't in some versions of SunOS).

#--------------------------------------------------------------------

AC_MSG_CHECKING(stdlib.h)

AC_HEADER_EGREP(strtol, stdlib.h, itcl_ok=yes, itcl_ok=no)

AC_HEADER_EGREP(strtoul, stdlib.h, , itcl_ok=no)

AC_HEADER_EGREP(strtod, stdlib.h, , itcl_ok=no)

if test $itcl_ok = no; then

    AC_DEFINE(NO_STDLIB_H)

fi

AC_MSG_RESULT($itcl_ok)

#--------------------------------------------------------------------

#   Check for various typedefs and provide substitutes if

#   they don't exist.

#--------------------------------------------------------------------

AC_MODE_T

AC_PID_T

AC_SIZE_T

AC_UID_T

#--------------------------------------------------------------------

#   Check for the existence of various libraries.  The order here

#   is important, so that then end up in the right order in the

#   command line generated by make.  The -lsocket and -lnsl libraries

#   require a couple of special tricks:

#   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.

#--------------------------------------------------------------------

itcl_checkBoth=0

AC_CHECK_FUNC(connect, itcl_checkSocket=0, itcl_checkSocket=1)

if test "$itcl_checkSocket" = 1; then

    AC_CHECK_LIB(socket, main, LIBS="$LIBS -lsocket", itcl_checkBoth=1)

fi

if test "$itcl_checkBoth" = 1; then

    itcl_oldLibs=$LIBS

    LIBS="$LIBS -lsocket -lnsl"

    AC_CHECK_FUNC(accept, itcl_checkNsl=0, [LIBS=$itcl_oldLibs])

fi

AC_CHECK_FUNC(gethostbyname, , AC_CHECK_LIB(nsl, main, [LIBS="$LIBS -lnsl"]))

#--------------------------------------------------------------------

#   On a few very rare systems, all of the libm.a stuff is

#   already in libc.a.  Set compiler flags accordingly.

#   Also, Linux requires the "ieee" library for math to

#   work right (and it must appear before "-lm").

#--------------------------------------------------------------------

MATH_LIBS=""

AC_CHECK_FUNC(sin, , MATH_LIBS="-lm")

AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"])

#--------------------------------------------------------------------

#   If this system doesn't have a memmove procedure, use memcpy

#   instead.

#--------------------------------------------------------------------

AC_CHECK_FUNC(memmove, , [AC_DEFINE(memmove, memcpy)])

#--------------------------------------------------------------------

#   Figure out whether "char" is unsigned.  If so, set a

#   #define for __CHAR_UNSIGNED__.

#--------------------------------------------------------------------

#AC_C_CHAR_UNSIGNED

#--------------------------------------------------------------------

#   Under Solaris 2.4, strtod returns the wrong value for the

#   terminating character under some conditions.  Check for this

#   and if the problem exists use a substitute procedure

#   "fixstrtod" (provided by Tcl) that corrects the error.

#--------------------------------------------------------------------

AC_CHECK_FUNC(strtod, itcl_strtod=1, itcl_strtod=0)

if test "$itcl_strtod" = 1; then

    AC_MSG_CHECKING([for Solaris 2.4 strtod bug])

    AC_TRY_RUN([

        extern double strtod();

        int main()

        {

            char *string = "NaN";

            char *term;

            strtod(string, &term);

            if ((term != string) && (term[-1] == 0)) {

                exit(1);

            }

            exit(0);

        }], itcl_ok=1, itcl_ok=0, itcl_ok=0)

    if test "$itcl_ok" = 1; then

        AC_MSG_RESULT(ok)

    else

        AC_MSG_RESULT(buggy)

        AC_DEFINE(strtod, fixstrtod)

    fi

fi

#--------------------------------------------------------------------

# If we are building with cygwin, we need one set of library names,

# otherwise, we need the Source-Navigator set.

#--------------------------------------------------------------------

if test "${TCL_LIB_VERSIONS_OK}" = "ok"; then

    CYGITCLLIBSPEC=itcl${VERSION}

else

    CYGITCLLIBSPEC="itcl`echo ${VERSION} | tr -d .`"

fi

CYGITCLLIB=lib${CYGITCLLIBSPEC}.a

CYGITCLDLL=cygitcl${VERSION}.dll

CYGITCLSH=cygitclsh${VERSION}.exe

CYGITCLDEF=itclcyg.def

CYGITCLTEST=cygitcltest.exe

CYGIMPORTLIB=cygitcl${VERSION}.lib

CYGITCLRES=cygitcl.o

CYGITCLSHRES=cygitclsh.o

SNITCLLIBSPEC=itcl30.lib

SNITCLLIB=${SNITCLLIBSPEC}

SNITCLDLL=snitcl30.dll

SNITCLSH=snitclsh30.exe

SNITCLDEF=itclsn.def

SNITCLTEST=snitcltest.exe

SNIMPORTLIB=snitcl30.lib

SNITCLRES=snitcl.obj

SNITCLSHRES=snitclsh.obj

if test "$GCC" = yes; then

ITCLLIBSPEC=${CYGITCLLIBSPEC}

ITCLLIB=${CYGITCLLIB}

ITCLDLL=${CYGITCLDLL}

ITCLSH=${CYGITCLSH}

ITCLDEF=${CYGITCLDEF}

ITCLTEST=${CYGITCLTEST}

ITCLIMPORTLIB=${CYGIMPORTLIB}

ITCLRES=${CYGITCLRES}

ITCLSHRES=${CYGITCLSHRES}

else

ITCLLIBSPEC=${SNITCLLIBSPEC}

ITCLLIB=${SNITCLLIB}

ITCLDLL=${SNITCLDLL}

ITCLSH=${SNITCLSH}

ITCLDEF=${SNITCLDEF}

ITCLTEST=${SNITCLTEST}

ITCLIMPORTLIB=${SNIMPORTLIB}

ITCLRES=${SNITCLRES}

ITCLSHRES=${SNITCLSHRES}

fi

ITCL_SH="`pwd`/${ITCLSH}"

if ! test "$GCC" = yes; then

    tmp="`cygpath --windows $ITCL_SH`"

    ITCL_SH="`echo $tmp | sed -e s#\\\\\\\\#/#g`"

fi

#--------------------------------------------------------------------

#   The statements below define a collection of symbols related to

#   building libitcl as a shared library instead of a static library.

#--------------------------------------------------------------------

AC_ARG_ENABLE(shared,

    [  --enable-shared         build libitcl as a shared library],

    [ok=$enableval], [ok=no])

if test "$ok" = "yes" -a "${SHLIB_SUFFIX}" != ""; then

    ITCL_SHLIB_CFLAGS="${SHLIB_CFLAGS}"

    eval "ITCL_LIB_FILE=libitcl${VERSION}${SHLIB_SUFFIX}"

    ITCL_PKG_FILE="[[file join [file dirname \$dir] ${ITCL_LIB_FILE}]]"

    MAKE_LIB="\${SHLIB_LD} -o ${ITCL_LIB_FILE} \${OBJS} ${SHLIB_LD_LIBS}"

    RANLIB=":"

else

    ITCL_SHLIB_CFLAGS=""

    eval "ITCL_LIB_FILE=libitcl${VERSION}.a"

    ITCL_PKG_FILE=""

    MAKE_LIB="ar cr ${ITCL_LIB_FILE} \${OBJS}"

fi

# Note:  in the following variable, it's important to use the absolute

# path name of the Tcl directory rather than "..":  this is because

# AIX remembers this path and will attempt to use it at run-time to look

# up the Tcl library.

if test "$GCC" = yes; then

    ITCL_BUILD_LIB_SPEC="-L`pwd` -l${ITCLLIBSPEC}"

    ITCL_LIB_SPEC="-L${exec_prefix}/lib/itcl -l{ITCLLIBSPEC}"

    ITCL_LIB_FULL_PATH="`pwd`/${ITCLLIB}"

else

    tmp="`pwd`/${ITCLLIB}"

    tmp2="`cygpath --windows $tmp`"

    ITCL_BUILD_LIB_SPEC="`echo $tmp2 | sed -e s#\\\\\\\\#/#g`"

    ITCL_LIB_FULL_PATH=${ITCL_BUILD_LIB_SPEC}

    tmp="${exec_prefix}/lib/itcl/${ITCLLIB}"

    tmp2="`cygpath --windows $tmp`"

    ITCL_LIB_SPEC="`echo $tmp2 | sed -e s#\\\\\\\\#/#g`"

fi

#-------------------------------------------------------------------

# Set up the libraries to link with.

#-------------------------------------------------------------------

if test "$GCC" = yes; then

    BASELIBS="-lkernel32 $(optlibs) -ladvapi32 -luser32"

    WINLIBS="-lgdi32 -lcomdlg32 -lwinspool"

    LIBCDLL=

else

    BASELIBS="kernel32.lib advapi32.lib user32.lib"

    WINLIBS="gdi32.lib comdlg32.lib winspool.lib"

    LIBCDLL="msvcrt.lib oldnames.lib"

fi

AC_SUBST(CFLAGS)

AC_SUBST(DL_LIBS)

AC_SUBST(LD_FLAGS)

AC_SUBST(MATH_LIBS)

AC_SUBST(MAKE_LIB)

AC_SUBST(SHLIB_CFLAGS)

AC_SUBST(SHLIB_LD)

AC_SUBST(SHLIB_LD_LIBS)

AC_SUBST(SHLIB_SUFFIX)

AC_SUBST(SHLIB_VERSION)

AC_SUBST(TCL_BIN_DIR)

AC_SUBST(TCL_BUILD_LIB_SPEC)

AC_SUBST(TCL_SRC_DIR)

AC_SUBST(TCL_VERSION)

AC_SUBST(TCL_LIB_FILE)

AC_SUBST(TCL_LIB_FULL_PATH)

AC_SUBST(ITCL_BUILD_LIB_SPEC)

AC_SUBST(ITCL_LD_SEARCH_FLAGS)

AC_SUBST(ITCL_LIB_FILE)

AC_SUBST(ITCL_LIB_FULL_PATH)

AC_SUBST(ITCL_LIB_SPEC)

AC_SUBST(ITCL_MAJOR_VERSION)

AC_SUBST(ITCL_MINOR_VERSION)

AC_SUBST(ITCL_PKG_FILE)

AC_SUBST(ITCL_SHLIB_CFLAGS)

AC_SUBST(ITCL_SRC_DIR)

AC_SUBST(ITCL_VERSION)

AC_SUBST(CYGITCLLIB)

AC_SUBST(CYGITCLDLL)

AC_SUBST(CYGITCLSH)

AC_SUBST(CYGITCLDEF)

AC_SUBST(CYGITCLTEST)

AC_SUBST(CYGIMPORTLIB)

AC_SUBST(CYGITCLRES)

AC_SUBST(CYGITCLSHRES)

AC_SUBST(SNITCLLIB)

AC_SUBST(SNITCLDLL)

AC_SUBST(SNITCLSH)

AC_SUBST(SNITCLDEF)

AC_SUBST(SNITCLTEST)

AC_SUBST(SNIMPORTLIB)

AC_SUBST(SNITCLRES)

AC_SUBST(SNITCLSHRES)

AC_SUBST(ITCLLIB)

AC_SUBST(ITCLDLL)

AC_SUBST(ITCLSH)

AC_SUBST(ITCLDEF)

AC_SUBST(ITCLTEST)

AC_SUBST(ITCLIMPORTLIB)

AC_SUBST(ITCLRES)

AC_SUBST(ITCL_SH)

AC_SUBST(BASELIBS)

AC_SUBST(WINLIBS)

AC_SUBST(LIBCDLL)

AC_OUTPUT(Makefile ../unix/pkgIndex.tcl ../itclConfig.sh)