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

# SC_PATH_TCLCONFIG --

#

#	Locate the tclConfig.sh file and perform a sanity check on

#	the Tcl compile flags

#	Currently a no-op for Windows

#

# Arguments:

#	PATCH_LEVEL	The patch level for Tcl if any.

#

# Results:

#

#	Adds the following arguments to configure:

#		--with-tcl=...

#

#	Sets the following vars:

#		TCL_BIN_DIR	Full path to the tclConfig.sh file

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

AC_DEFUN([SC_PATH_TCLCONFIG], [

    AC_MSG_CHECKING([the location of tclConfig.sh])

    if test -d ../../tcl8.4$1/win;  then

	TCL_BIN_DIR_DEFAULT=../../tcl8.4$1/win

    elif test -d ../../tcl8.4/win;  then

	TCL_BIN_DIR_DEFAULT=../../tcl8.4/win

    else

	TCL_BIN_DIR_DEFAULT=../../tcl/win

    fi

    AC_ARG_WITH(tcl, [  --with-tcl=DIR          use Tcl 8.4 binaries from DIR],

	    TCL_BIN_DIR=$withval, TCL_BIN_DIR=`cd $TCL_BIN_DIR_DEFAULT; pwd`)

    if test ! -d $TCL_BIN_DIR; then

	AC_MSG_ERROR(Tcl directory $TCL_BIN_DIR does not exist)

    fi

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

	AC_MSG_ERROR(There is no tclConfig.sh in $TCL_BIN_DIR:  perhaps you did not specify the Tcl *build* directory (not the toplevel Tcl directory) or you forgot to configure Tcl?)

    fi

    AC_MSG_RESULT($TCL_BIN_DIR/tclConfig.sh)

])

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

# SC_PATH_TKCONFIG --

#

#	Locate the tkConfig.sh file

#	Currently a no-op for Windows

#

# Arguments:

#	none

#

# Results:

#

#	Adds the following arguments to configure:

#		--with-tk=...

#

#	Sets the following vars:

#		TK_BIN_DIR	Full path to the tkConfig.sh file

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

AC_DEFUN([SC_PATH_TKCONFIG], [

    AC_MSG_CHECKING([the location of tkConfig.sh])

    if test -d ../../tk8.4$1/win;  then

	TK_BIN_DIR_DEFAULT=../../tk8.4$1/win

    elif test -d ../../tk8.4/win;  then

	TK_BIN_DIR_DEFAULT=../../tk8.4/win

    else

	TK_BIN_DIR_DEFAULT=../../tk/win

    fi

    AC_ARG_WITH(tk, [  --with-tk=DIR          use Tk 8.4 binaries from DIR],

	    TK_BIN_DIR=$withval, TK_BIN_DIR=`cd $TK_BIN_DIR_DEFAULT; pwd`)

    if test ! -d $TK_BIN_DIR; then

	AC_MSG_ERROR(Tk directory $TK_BIN_DIR does not exist)

    fi

    if test ! -f $TK_BIN_DIR/tkConfig.sh; then

	AC_MSG_ERROR(There is no tkConfig.sh in $TK_BIN_DIR:  perhaps you did not specify the Tk *build* directory (not the toplevel Tk directory) or you forgot to configure Tk?)

    fi

    AC_MSG_RESULT([$TK_BIN_DIR/tkConfig.sh])

])

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

# SC_LOAD_TCLCONFIG --

#

#	Load the tclConfig.sh file.

#

# Arguments:

#	

#	Requires the following vars to be set:

#		TCL_BIN_DIR

#

# Results:

#

#	Subst the following vars:

#		TCL_BIN_DIR

#		TCL_SRC_DIR

#		TCL_LIB_FILE

#

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

AC_DEFUN([SC_LOAD_TCLCONFIG], [

    AC_MSG_CHECKING([for existence of $TCL_BIN_DIR/tclConfig.sh])

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

        AC_MSG_RESULT([loading])

	. $TCL_BIN_DIR/tclConfig.sh

    else

        AC_MSG_RESULT([file not found])

    fi

    #

    # If the TCL_BIN_DIR is the build directory (not the install directory),

    # then set the common variable name to the value of the build variables.

    # For example, the variable TCL_LIB_SPEC will be set to the value

    # of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC

    # instead of TCL_BUILD_LIB_SPEC since it will work with both an

    # installed and uninstalled version of Tcl.

    #

    if test -f $TCL_BIN_DIR/Makefile ; then

        TCL_LIB_SPEC=${TCL_BUILD_LIB_SPEC}

        TCL_STUB_LIB_SPEC=${TCL_BUILD_STUB_LIB_SPEC}

        TCL_STUB_LIB_PATH=${TCL_BUILD_STUB_LIB_PATH}

    fi

    #

    # eval is required to do the TCL_DBGX substitution

    #

    eval "TCL_LIB_FILE=\"${TCL_LIB_FILE}\""

    eval "TCL_LIB_FLAG=\"${TCL_LIB_FLAG}\""

    eval "TCL_LIB_SPEC=\"${TCL_LIB_SPEC}\""

    eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\""

    eval "TCL_STUB_LIB_FLAG=\"${TCL_STUB_LIB_FLAG}\""

    eval "TCL_STUB_LIB_SPEC=\"${TCL_STUB_LIB_SPEC}\""

    AC_SUBST(TCL_VERSION)

    AC_SUBST(TCL_BIN_DIR)

    AC_SUBST(TCL_SRC_DIR)

    AC_SUBST(TCL_LIB_FILE)

    AC_SUBST(TCL_LIB_FLAG)

    AC_SUBST(TCL_LIB_SPEC)

    AC_SUBST(TCL_STUB_LIB_FILE)

    AC_SUBST(TCL_STUB_LIB_FLAG)

    AC_SUBST(TCL_STUB_LIB_SPEC)

    AC_SUBST(TCL_DEFS)

])

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

# SC_LOAD_TKCONFIG --

#

#	Load the tkConfig.sh file

#	Currently a no-op for Windows

#

# Arguments:

#	

#	Requires the following vars to be set:

#		TK_BIN_DIR

#

# Results:

#

#	Sets the following vars that should be in tkConfig.sh:

#		TK_BIN_DIR

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

AC_DEFUN([SC_LOAD_TKCONFIG], [

    AC_MSG_CHECKING([for existence of $TK_BIN_DIR/tkConfig.sh])

    if test -f "$TK_BIN_DIR/tkConfig.sh" ; then

        AC_MSG_RESULT([loading])

	. $TK_BIN_DIR/tkConfig.sh

    else

        AC_MSG_RESULT([could not find $TK_BIN_DIR/tkConfig.sh])

    fi

    AC_SUBST(TK_BIN_DIR)

    AC_SUBST(TK_SRC_DIR)

    AC_SUBST(TK_LIB_FILE)

])

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

# SC_ENABLE_SHARED --

#

#	Allows the building of shared libraries

#

# Arguments:

#	none

#	

# Results:

#

#	Adds the following arguments to configure:

#		--enable-shared=yes|no

#

#	Defines the following vars:

#		STATIC_BUILD	Used for building import/export libraries

#				on Windows.

#

#	Sets the following vars:

#		SHARED_BUILD	Value of 1 or 0

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

AC_DEFUN([SC_ENABLE_SHARED], [

    AC_MSG_CHECKING([how to build libraries])

    AC_ARG_ENABLE(shared,

	[  --enable-shared         build and link with shared libraries [--enable-shared]],

    [tcl_ok=$enableval], [tcl_ok=yes])

    if test "${enable_shared+set}" = set; then

	enableval="$enable_shared"

	tcl_ok=$enableval

    else

	tcl_ok=yes

    fi

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

	AC_MSG_RESULT([shared])

	SHARED_BUILD=1

    else

	AC_MSG_RESULT([static])

	SHARED_BUILD=0

	AC_DEFINE(STATIC_BUILD)

    fi

])

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

# SC_ENABLE_THREADS --

#

#	Specify if thread support should be enabled

#

# Arguments:

#	none

#	

# Results:

#

#	Adds the following arguments to configure:

#		--enable-threads=yes|no

#

#	Defines the following vars:

#		TCL_THREADS

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

AC_DEFUN([SC_ENABLE_THREADS], [

    AC_MSG_CHECKING(for building with threads)

    AC_ARG_ENABLE(threads, [  --enable-threads        build with threads],

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

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

	AC_MSG_RESULT(yes)

	TCL_THREADS=1

	AC_DEFINE(TCL_THREADS)

	# USE_THREAD_ALLOC tells us to try the special thread-based

	# allocator that significantly reduces lock contention

	AC_DEFINE(USE_THREAD_ALLOC)

    else

	TCL_THREADS=0

	AC_MSG_RESULT([no (default)])

    fi

    AC_SUBST(TCL_THREADS)

])

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

# SC_ENABLE_SYMBOLS --

#

#	Specify if debugging symbols should be used

#	Memory (TCL_MEM_DEBUG) and compile (TCL_COMPILE_DEBUG) debugging

#	can also be enabled.

#

# Arguments:

#	none

#	

#	Requires the following vars to be set in the Makefile:

#		CFLAGS_DEBUG

#		CFLAGS_OPTIMIZE

#	

# Results:

#

#	Adds the following arguments to configure:

#		--enable-symbols

#

#	Defines the following vars:

#		CFLAGS_DEFAULT	Sets to $(CFLAGS_DEBUG) if true

#				Sets to $(CFLAGS_OPTIMIZE) if false

#		LDFLAGS_DEFAULT	Sets to $(LDFLAGS_DEBUG) if true

#				Sets to $(LDFLAGS_OPTIMIZE) if false

#		DBGX		Debug library extension

#

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

AC_DEFUN([SC_ENABLE_SYMBOLS], [

    AC_MSG_CHECKING([for build with symbols])

    AC_ARG_ENABLE(symbols, [  --enable-symbols        build with debugging symbols [--disable-symbols]],    [tcl_ok=$enableval], [tcl_ok=no])

# FIXME: Currently, LDFLAGS_DEFAULT is not used, it should work like CFLAGS_DEFAULT.

    if test "$tcl_ok" = "no"; then

	CFLAGS_DEFAULT='$(CFLAGS_OPTIMIZE)'

	LDFLAGS_DEFAULT='$(LDFLAGS_OPTIMIZE)'

	DBGX=""

	AC_MSG_RESULT([no])

    else

	CFLAGS_DEFAULT='$(CFLAGS_DEBUG)'

	LDFLAGS_DEFAULT='$(LDFLAGS_DEBUG)'

	DBGX=g

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

	    AC_MSG_RESULT([yes (standard debugging)])

	fi

    fi

    AC_SUBST(CFLAGS_DEFAULT)

    AC_SUBST(LDFLAGS_DEFAULT)

    if test "$tcl_ok" = "mem" -o "$tcl_ok" = "all"; then

	AC_DEFINE(TCL_MEM_DEBUG)

    fi

    if test "$tcl_ok" = "compile" -o "$tcl_ok" = "all"; then

	AC_DEFINE(TCL_COMPILE_DEBUG)

	AC_DEFINE(TCL_COMPILE_STATS)

    fi

    if test "$tcl_ok" != "yes" -a "$tcl_ok" != "no"; then

	if test "$tcl_ok" = "all"; then

	    AC_MSG_RESULT([enabled symbols mem compile debugging])

	else

	    AC_MSG_RESULT([enabled $tcl_ok debugging])

	fi

    fi

])

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

# SC_CONFIG_CFLAGS

#

#	Try to determine the proper flags to pass to the compiler

#	for building shared libraries and other such nonsense.

#

#	NOTE: The backslashes in quotes below are substituted twice

#	due to the fact that they are in a macro and then inlined

#	in the final configure script.

#

# Arguments:

#	none

#

# Results:

#

#	Can the following vars:

#		EXTRA_CFLAGS

#		CFLAGS_DEBUG

#		CFLAGS_OPTIMIZE

#		CFLAGS_WARNING

#		LDFLAGS_DEBUG

#		LDFLAGS_OPTIMIZE

#		LDFLAGS_CONSOLE

#		LDFLAGS_WINDOW

#		CC_OBJNAME

#		CC_EXENAME

#		CYGPATH

#		STLIB_LD

#		SHLIB_LD

#		SHLIB_LD_LIBS

#		LIBS

#		AR

#		RC

#		RES

#

#		MAKE_LIB

#		MAKE_EXE

#		MAKE_DLL

#

#		LIBSUFFIX

#		LIBPREFIX

#		LIBRARIES

#		EXESUFFIX

#		DLLSUFFIX

#

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

AC_DEFUN([SC_CONFIG_CFLAGS], [

    # Step 0: Enable 64 bit support?

    AC_MSG_CHECKING([if 64bit support is requested])

    AC_ARG_ENABLE(64bit,[  --enable-64bit          enable 64bit support (where applicable = amd64|ia64)], [do64bit=$enableval], [do64bit=no])

    AC_MSG_RESULT($do64bit)

    # Set some defaults (may get changed below)

    EXTRA_CFLAGS=""

    AC_CHECK_PROG(CYGPATH, cygpath, cygpath -w, echo)

    SHLIB_SUFFIX=".dll"

    # MACHINE is IX86 for LINK, but this is used by the manifest,

    # which requires x86|amd64|ia64.

    MACHINE="X86"

    # Check for a bug in gcc's windres that causes the

    # compile to fail when a Windows native path is

    # passed into windres. The mingw toolchain requires

    # Windows native paths while Cygwin should work

    # with both. Avoid the bug by passing a POSIX

    # path when using the Cygwin toolchain.

    if test "$GCC" = "yes" && test "$CYGPATH" != "echo" ; then

	conftest=/tmp/conftest.rc

	echo "STRINGTABLE BEGIN" > $conftest

	echo "101 \"name\"" >> $conftest

	echo "END" >> $conftest

	AC_MSG_CHECKING([for Windows native path bug in windres])

	cyg_conftest=`$CYGPATH $conftest`

	if AC_TRY_COMMAND($RC -o conftest.res.o $cyg_conftest) ; then

	    AC_MSG_RESULT([no])

	else

	    AC_MSG_RESULT([yes])

	    CYGPATH=echo

	fi

	conftest=

	cyg_conftest=

    fi

    if test "$CYGPATH" = "echo" || test "$ac_cv_cygwin" = "yes"; then

        DEPARG='"$<"'

    else

        DEPARG='"$(shell $(CYGPATH) $<)"'

    fi

    # set various compiler flags depending on whether we are using gcc or cl

    AC_MSG_CHECKING([compiler flags])

    if test "${GCC}" = "yes" ; then

	if test "$do64bit" != "no" ; then

	    AC_MSG_WARN("64bit mode not supported with GCC on Windows")

	fi

	SHLIB_LD=""

	SHLIB_LD_LIBS=""

	LIBS=""

	LIBS_GUI="-lgdi32 -lcomdlg32 -limm32 -lcomctl32 -lshell32"

	STLIB_LD='${AR} cr'

	RC_OUT=-o

	RC_TYPE=

	RC_INCLUDE=--include

	RC_DEFINE=--define

	RES=res.o

	MAKE_LIB="\${STLIB_LD} \[$]@"

	POST_MAKE_LIB="\${RANLIB} \[$]@"

	MAKE_EXE="\${CC} -o \[$]@"

	LIBPREFIX="lib"

	#if test "$ac_cv_cygwin" = "yes"; then

	#    extra_cflags="-mno-cygwin"

	#    extra_ldflags="-mno-cygwin"

	#else

	#    extra_cflags=""

	#    extra_ldflags=""

	#fi

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

	  touch ac$$.c

	  if ${CC} -c -mwin32 ac$$.c >/dev/null 2>&1; then

	    case "$extra_cflags" in

	      *-mwin32*) ;;

	      *) extra_cflags="-mwin32 $extra_cflags" ;;

	    esac

	    case "$extra_ldflags" in

	      *-mwin32*) ;;

	      *) extra_ldflags="-mwin32 $extra_ldflags" ;;

	    esac

	  fi

	  rm -f ac$$.o ac$$.c

	else

	  extra_cflags=''

	  extra_ldflags=''

	fi

	if test "${SHARED_BUILD}" = "0" ; then

	    # static

            AC_MSG_RESULT([using static flags])

	    runtime=

	    MAKE_DLL="echo "

	    LIBSUFFIX="s\${DBGX}.a"

	    LIBFLAGSUFFIX="s\${DBGX}"

	    LIBRARIES="\${STATIC_LIBRARIES}"

	    EXESUFFIX="s\${DBGX}.exe"

	else

	    # dynamic

            AC_MSG_RESULT([using shared flags])

	    # ad-hoc check to see if CC supports -shared.

	    if "${CC}" -shared 2>&1 | egrep ': -shared not supported' >/dev/null; then

		AC_MSG_ERROR([${CC} does not support the -shared option.

                You will need to upgrade to a newer version of the toolchain.])

	    fi

	    runtime=

	    # Link with gcc since ld does not link to default libs like

	    # -luser32 and -lmsvcrt by default. Make sure CFLAGS is

	    # included so -mno-cygwin passed the correct libs to the linker.

	    SHLIB_LD='${CC} -shared ${CFLAGS}'

	    SHLIB_LD_LIBS='${LIBS}'

	    # Add SHLIB_LD_LIBS to the Make rule, not here.

	    MAKE_DLL="\${SHLIB_LD} \$(LDFLAGS) -o \[$]@ ${extra_ldflags} \

	        -Wl,--out-implib,\$(patsubst %.dll,lib%.a,\[$]@)"

	    LIBSUFFIX="\${DBGX}.a"

	    LIBFLAGSUFFIX="\${DBGX}"

	    EXESUFFIX="\${DBGX}.exe"

	    LIBRARIES="\${SHARED_LIBRARIES}"

	fi

	# DLLSUFFIX is separate because it is the building block for

	# users of tclConfig.sh that may build shared or static.

	DLLSUFFIX="\${DBGX}.dll"

	SHLIB_SUFFIX=.dll

	EXTRA_CFLAGS="${extra_cflags}"

	CFLAGS_DEBUG=-g

	CFLAGS_OPTIMIZE="-O2 -fomit-frame-pointer"

	CFLAGS_WARNING="-Wall -Wconversion"

	LDFLAGS_DEBUG=

	LDFLAGS_OPTIMIZE=

	# Specify the CC output file names based on the target name

	CC_OBJNAME="-o \[$]@"

	CC_EXENAME="-o \[$]@"

	# Specify linker flags depending on the type of app being 

	# built -- Console vs. Window.

	#

	# ORIGINAL COMMENT:

	# We need to pass -e _WinMain@16 so that ld will use

	# WinMain() instead of main() as the entry point. We can't

	# use autoconf to check for this case since it would need

	# to run an executable and that does not work when

	# cross compiling. Remove this -e workaround once we

	# require a gcc that does not have this bug.

	#

	# MK NOTE: Tk should use a different mechanism. This causes 

	# interesting problems, such as wish dying at startup.

	#LDFLAGS_WINDOW="-mwindows -e _WinMain@16 ${extra_ldflags}"

	LDFLAGS_CONSOLE="-mconsole ${extra_ldflags}"

	LDFLAGS_WINDOW="-mwindows ${extra_ldflags}"

    else

	if test "${SHARED_BUILD}" = "0" ; then

	    # static

            AC_MSG_RESULT([using static flags])

	    runtime=-MT

	    MAKE_DLL="echo "

	    LIBSUFFIX="s\${DBGX}.lib"

	    LIBFLAGSUFFIX="s\${DBGX}"

	    LIBRARIES="\${STATIC_LIBRARIES}"

	    EXESUFFIX="s\${DBGX}.exe"

	    SHLIB_LD_LIBS=""

	else

	    # dynamic

            AC_MSG_RESULT([using shared flags])

	    runtime=-MD

	    # Add SHLIB_LD_LIBS to the Make rule, not here.

	    MAKE_DLL="\${SHLIB_LD} \$(LDFLAGS) -out:\[$]@"

	    LIBSUFFIX="\${DBGX}.lib"

	    LIBFLAGSUFFIX="\${DBGX}"

	    EXESUFFIX="\${DBGX}.exe"

	    LIBRARIES="\${SHARED_LIBRARIES}"

	    SHLIB_LD_LIBS='${LIBS}'

	fi

	# DLLSUFFIX is separate because it is the building block for

	# users of tclConfig.sh that may build shared or static.

	DLLSUFFIX="\${DBGX}.dll"

	# This is a 2-stage check to make sure we have the 64-bit SDK

	# We have to know where the SDK is installed.

	# This magic is based on MS Platform SDK for Win2003 SP1 - hobbs

	if test "$do64bit" != "no" ; then

	    if test "x${MSSDK}x" = "xx" ; then

		MSSDK="C:/Progra~1/Microsoft Platform SDK"

	    fi

	    MSSDK=`echo "$MSSDK" | sed -e 's!\\\!/!g'`

	    PATH64=""

	    case "$do64bit" in

		amd64|x64|yes)

		    MACHINE="AMD64" ; # default to AMD64 64-bit build

		    PATH64="${MSSDK}/Bin/Win64/x86/AMD64"

		    ;;

		ia64)

		    MACHINE="IA64"

		    PATH64="${MSSDK}/Bin/Win64"

		    ;;

	    esac

	    if test ! -d "${PATH64}" ; then

		AC_MSG_WARN([Could not find 64-bit $MACHINE SDK to enable 64bit mode])

		AC_MSG_WARN([Ensure latest Platform SDK is installed])

		do64bit="no"

	    else

		AC_MSG_RESULT([   Using 64-bit $MACHINE mode])

	    fi

	fi

	if test "$do64bit" != "no" ; then

	    # The space-based-path will work for the Makefile, but will

	    # not work if AC_TRY_COMPILE is called.

	    CC="\"${PATH64}/cl.exe\" -I\"${MSSDK}/Include\" \

		-I\"${MSSDK}/Include/crt\" -I\"${MSSDK}/Include/crt/sys\""

	    RC="\"${MSSDK}/bin/rc.exe\""

	    CFLAGS_DEBUG="-nologo -Zi -Od ${runtime}d"

	    # Do not use -O2 for Win64 - this has proved buggy in code gen.

	    CFLAGS_OPTIMIZE="-nologo -O1 ${runtime}"

	    lflags="-nologo -MACHINE:${MACHINE} -LIBPATH:\"${MSSDK}/Lib/${MACHINE}\""

	    LINKBIN="\"${PATH64}/link.exe\""

	    # Avoid 'unresolved external symbol __security_cookie' errors.

	    # c.f. http://support.microsoft.com/?id=894573

	    LIBS="user32.lib advapi32.lib bufferoverflowU.lib"

	else

	    RC="rc"

	    # -Od - no optimization

	    # -WX - warnings as errors

	    CFLAGS_DEBUG="-nologo -Z7 -Od -WX ${runtime}d"

	    # -O2 - create fast code (/Og /Oi /Ot /Oy /Ob2 /Gs /GF /Gy)

	    CFLAGS_OPTIMIZE="-nologo -O2 ${runtime}"

	    lflags="-nologo"

	    LINKBIN="link"

	    LIBS="user32.lib advapi32.lib"

	fi

	LIBS_GUI="gdi32.lib comdlg32.lib imm32.lib comctl32.lib shell32.lib"

	SHLIB_LD="${LINKBIN} -dll -incremental:no ${lflags}"

	# link -lib only works when -lib is the first arg

	STLIB_LD="${LINKBIN} -lib ${lflags}"

	RC_OUT=-fo

	RC_TYPE=-r

	RC_INCLUDE=-i

	RC_DEFINE=-d

	RES=res

	MAKE_LIB="\${STLIB_LD} -out:\[$]@"

	POST_MAKE_LIB=

	MAKE_EXE="\${CC} -Fe\[$]@"

	LIBPREFIX=""

	EXTRA_CFLAGS=""

	CFLAGS_WARNING="-W3"

	LDFLAGS_DEBUG="-debug:full"

	LDFLAGS_OPTIMIZE="-release"

	# Specify the CC output file names based on the target name

	CC_OBJNAME="-Fo\[$]@"

	CC_EXENAME="-Fe\"\$(shell \$(CYGPATH) '\[$]@')\""

	# Specify linker flags depending on the type of app being 

	# built -- Console vs. Window.

	LDFLAGS_CONSOLE="-link -subsystem:console ${lflags}"

	LDFLAGS_WINDOW="-link -subsystem:windows ${lflags}"

    fi

    # DL_LIBS is empty, but then we match the Unix version

    AC_SUBST(DL_LIBS)

    AC_SUBST(CFLAGS_DEBUG)

    AC_SUBST(CFLAGS_OPTIMIZE)

    AC_SUBST(CFLAGS_WARNING)

])

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

# SC_WITH_TCL --

#

#	Location of the Tcl build directory.

#

# Arguments:

#	none

#

# Results:

#

#	Adds the following arguments to configure:

#		--with-tcl=...

#

#	Defines the following vars:

#		TCL_BIN_DIR	Full path to the tcl build dir.

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

AC_DEFUN([SC_WITH_TCL], [

    if test -d ../../tcl8.4$1/win;  then

	TCL_BIN_DEFAULT=../../tcl8.4$1/win

    else

	TCL_BIN_DEFAULT=../../tcl8.4/win

    fi

    AC_ARG_WITH(tcl, [  --with-tcl=DIR          use Tcl 8.4 binaries from DIR],

	    TCL_BIN_DIR=$withval, TCL_BIN_DIR=`cd $TCL_BIN_DEFAULT; pwd`)

    if test ! -d $TCL_BIN_DIR; then

	AC_MSG_ERROR(Tcl directory $TCL_BIN_DIR does not exist)

    fi

    if test ! -f $TCL_BIN_DIR/Makefile; then

	AC_MSG_ERROR(There is no Makefile in $TCL_BIN_DIR:  perhaps you did not specify the Tcl *build* directory (not the toplevel Tcl directory) or you forgot to configure Tcl?)

    else

	echo "building against Tcl binaries in: $TCL_BIN_DIR"

    fi

    AC_SUBST(TCL_BIN_DIR)

])

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

# SC_PROG_TCLSH

#	Locate a tclsh shell installed on the system path. This macro

#	will only find a Tcl shell that already exists on the system.

#	It will not find a Tcl shell in the Tcl build directory or

#	a Tcl shell that has been installed from the Tcl build directory.

#	If a Tcl shell can't be located on the PATH, then TCLSH_PROG will

#	be set to "". Extensions should take care not to create Makefile

#	rules that are run by default and depend on TCLSH_PROG. An

#	extension can't assume that an executable Tcl shell exists at

#	build time.

#

# Arguments

#	none

#

# Results

#	Subst's the following values:

#		TCLSH_PROG

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

AC_DEFUN([SC_PROG_TCLSH], [

    AC_MSG_CHECKING([for tclsh])

    AC_CACHE_VAL(ac_cv_path_tclsh, [

	search_path=`echo ${PATH} | sed -e 's/:/ /g'`

	for dir in $search_path ; do

	    for j in `ls -r $dir/tclsh[[8-9]]*.exe 2> /dev/null` \

		    `ls -r $dir/tclsh* 2> /dev/null` ; do

		if test x"$ac_cv_path_tclsh" = x ; then

		    if test -f "$j" ; then

			ac_cv_path_tclsh=$j

			break

		    fi

		fi

	    done

	done

    ])

    if test -f "$ac_cv_path_tclsh" ; then

	TCLSH_PROG="$ac_cv_path_tclsh"

	AC_MSG_RESULT($TCLSH_PROG)

    else

	# It is not an error if an installed version of Tcl can't be located.

	TCLSH_PROG=""

	AC_MSG_RESULT([No tclsh found on PATH])

    fi

    AC_SUBST(TCLSH_PROG)

])

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

# SC_BUILD_TCLSH

#	Determine the fully qualified path name of the tclsh executable

#	in the Tcl build directory. This macro will correctly determine

#	the name of the tclsh executable even if tclsh has not yet

#	been built in the build directory. The build tclsh must be used

#	when running tests from an extension build directory. It is not

#	correct to use the TCLSH_PROG in cases like this.

#

# Arguments

#	none

#

# Results

#	Subst's the following values:

#		BUILD_TCLSH

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

AC_DEFUN([SC_BUILD_TCLSH], [

    AC_MSG_CHECKING([for tclsh in Tcl build directory])

    BUILD_TCLSH=${TCL_BIN_DIR}/tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}${TCL_DBGX}${EXEEXT}

    AC_MSG_RESULT($BUILD_TCLSH)

    AC_SUBST(BUILD_TCLSH)

])