A few pages exist on the wiki dealing with similar topics:

• Building Tcl DLL's for Windows
• Common problems when linking Tcl or Tk related applications
• Compiling Tcl on a Mac
• How to compile Tcl and related C extensions on Windows covers that specific platform.
• I cannot get Tcl (or an extension) to compile provides some info.
• Notes on compiling tcl with icc
• Optimized compilation of tcl
• Solaris covers some build information for that platform.
• TEA and TEA2 cover some of the issues.

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