* generic/tclIntDecls.h (TclIntStubs): Do not include definitions

    * generic/tclIntDecls.h (TclIntStubs): Do not include definitions
        for tclpAlloc, tclpFree, or pRealloc on cygwin.

        * win/tcl.hpj.in: Copied here from tools/tcl.hpj.in.

        * win/tcl.m4 (SC_CONFIG_CFLAGS): Add TCL_DLL_BASE, DDE_DLL_BASE,
        and REG_DLL_BASE variables to define DLL image bases on cygwin.
        Do not link with "-e _WinMain@16" on cygwin.
        * win/configure.in (TCL_DLL_BASE): Substitute into makefile.
        (DDE_DLL_BASE): Likewise.
        (REG_DLL_BASE): Likewise.
        * win/configure: Regenerated.
        * win/Makefile.in: Use TCL_DLL_BASE, DDE_DLL_BASE, and
        REG_DLL_BASE to build DLLs.