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    1 Tcl Mac OS X README
    2 -------------------
    4 This is the README file for the Mac OS X/Darwin version of Tcl.
    7 1. Where to go for support
    8 --------------------------
   10 - The tcl-mac mailing list on sourceforge is the best place to ask questions
   11 specific to Tcl & Tk on Mac OS X:
   12 	http://lists.sourceforge.net/lists/listinfo/tcl-mac
   13 (this page also has a link to searchable archives of the list, please check them
   14 before asking on the list, many questions have already been answered).
   16 - For general Tcl/Tk questions, the newsgroup comp.lang.tcl is your best bet:
   17 	http://groups.google.com/group/comp.lang.tcl/
   19 - The Tcl'ers Wiki also has many pages dealing with Tcl & Tk on Mac OS X, see
   20 	http://wiki.tcl.tk/_/ref?N=3753
   21 	http://wiki.tcl.tk/_/ref?N=8361
   23 - Please report bugs with Tcl on Mac OS X to the tracker:
   24 	http://core.tcl.tk/tcl/reportlist
   26 2. Using Tcl on Mac OS X
   27 ------------------------
   29 - At a minimum, Mac OS X 10.3 is required to run Tcl.
   31 - Unless weak-linking is used, Tcl built on Mac OS X 10.x will not run on 10.y
   32 with y < x; on the other hand Tcl built on 10.y will always run on 10.x with
   33 y <= x (but without any of the fixes and optimizations that would be available
   34 in a binary built on 10.x).
   35 Weak-linking is available on OS X 10.2 or later, it additionally allows Tcl
   36 built on 10.x to run on any 10.y with x > y >= z (for a chosen z >= 2).
   38 - Tcl extensions can be installed in any of:
   39 	$HOME/Library/Tcl /Library/Tcl /System/Library/Tcl
   40 	$HOME/Library/Frameworks /Library/Frameworks /System/Library/Frameworks
   41 	(searched in that order).
   42 Given a potential package directory $pkg, Tcl on OSX checks for the file
   43 $pkg/Resources/Scripts/pkgIndex.tcl as well as the usual $pkg/pkgIndex.tcl.
   44 This allows building extensions as frameworks with all script files contained in
   45 the Resources/Scripts directory of the framework.
   47 - [load]able binary extensions can linked as either ordinary shared libraries
   48 (.dylib) or as MachO bundles (since 8.4.10/8.5a3); bundles have the advantage
   49 that they are [load]ed more efficiently from a tcl VFS (no temporary copy to the
   50 native filesystem required), and prior to Mac OS X 10.5, only bundles can be
   51 [unload]ed.
   53 - The 'deploy' target of macosx/GNUmakefile installs the html manpages into the
   54 standard documentation location in the Tcl framework:
   55 	Tcl.framework/Resources/Documentation/Reference/Tcl
   56 No nroff manpages are installed by default by the GNUmakefile.
   58 - The Tcl framework can be installed in any of the system's standard
   59 framework directories:
   60 	$HOME/Library/Frameworks /Library/Frameworks /System/Library/Frameworks
   63 3. Building Tcl on Mac OS X
   64 ---------------------------
   66 - At least Mac OS X 10.3 is required to build Tcl.
   67 Apple's Xcode Developer Tools need to be installed (only the most recent version
   68 matching your OS release is supported), the Xcode installer is available on Mac
   69 OS X install media or may be present in /Applications/Installers on Macs that
   70 came with OS X preinstalled. The most recent version can always be downloaded
   71 from the ADC website http://connect.apple.com (free ADC membership required).
   73 - Tcl is most easily built as a Mac OS X framework via GNUmakefile in tcl/macosx
   74 (see below for details), but can also be built with the standard unix configure
   75 and make buildsystem in tcl/unix as on any other unix platform (indeed, the
   76 GNUmakefile is just a wrapper around the unix buildsystem).
   77 The Mac OS X specific configure flags are --enable-framework and
   78 --disable-corefoundation (which disables CF and notably reverts to the standard
   79 select based notifier).
   81 - It is also possible to build with the Xcode IDE via the projects in
   82 tcl/macosx, take care to use the project matching your DevTools and OS version:
   83 	Tcl.xcode: 		    for Xcode 3.1 on 10.5
   84 	Tcl.xcodeproj:		    for Xcode 3.2 on 10.6
   85 These have the following targets:
   86 	Tcl:			    calls through to tcl/macosx/GNUMakefile.
   87 	tcltest:		    static build of tcltest for debugging.
   88 	tests:			    build tcltest target and run tcl testsuite.
   89 The following build configurations are available:
   90 	Debug:			    debug build for the active architecture,
   91 				    with Fix & Continue enabled.
   92 	Debug clang:		    use clang compiler.
   93 	Debug llvm-gcc:		    use llvm-gcc compiler.
   94 	Debug gcc40:		    use gcc 4.0 compiler.
   95 	DebugNoFixAndContinue:      disable Fix & Continue.
   96 	DebugUnthreaded:	    disable threading.
   97 	DebugNoCF:		    disable corefoundation.
   98 	DebugNoCFUnthreaded:	    disable corefoundation an threading.
   99 	DebugMemCompile:	    enable memory and bytecode debugging.
  100 	DebugLeaks:		    define PURIFY.
  101 	DebugGCov:		    enable generation of gcov data files.
  102 	Debug64bit:		    configure with --enable-64bit (requires
  103 				    building on a 64bit capable processor).
  104 	Release:		    release build for the active architecture.
  105 	ReleaseUniversal:	    32/64-bit universal build.
  106 	ReleaseUniversal clang:	    use clang compiler.
  107 	ReleaseUniversal llvm-gcc:  use llvm-gcc compiler.
  108 	ReleaseUniversal gcc40:	    use gcc 4.0 compiler.
  109 	ReleaseUniversal10.5SDK:    build against the 10.5 SDK (with 10.5
  110 				    deployment target).
  111 	Note that the non-SDK configurations have their deployment target set to
  112 	10.5 (Tcl.xcode) resp. 10.6 (Tcl.xcodeproj).
  113 The Xcode projects refer to the toplevel tcl source directory via the
  114 TCL_SRCROOT user build setting, by default this is set to the project-relative
  115 path '../../tcl', if your tcl source directory is named differently, e.g.
  116 '../../tcl8.6', you need to manually change the TCL_SRCROOT setting by editing
  117 your ${USER}.pbxuser file (located inside the Tcl.xcodeproj bundle directory)
  118 with a text editor.
  120 - To build universal binaries outside of the Xcode IDE, set CFLAGS as follows:
  121 	export CFLAGS="-arch i386 -arch x86_64 -arch ppc"
  122 This requires Mac OS X 10.4 and Xcode 2.4 (or Xcode 2.2 if -arch x86_64 is
  123 omitted, but _not_ Xcode 2.1) and will work on any architecture (on PowerPC
  124 Tiger you need to add "-isysroot /Developer/SDKs/MacOSX10.4u.sdk").
  125 Note that configure requires CFLAGS to contain a least one architecture that can
  126 be run on the build machine (i.e. ppc on G3/G4, ppc or ppc64 on G5, ppc or i386
  127 on Core and ppc, i386 or x86_64 on Core2/Xeon).
  128 Universal builds of Tcl TEA extensions are also possible with CFLAGS set as
  129 above, they will be [load]able by universal as well as thin binaries of Tcl.
  131 Detailed Instructions for building with macosx/GNUmakefile
  132 ----------------------------------------------------------
  134 - Unpack the Tcl source release archive.
  136 - The following instructions assume the Tcl source tree is named "tcl${ver}",
  137 (where ${ver} is a shell variable containing the Tcl version number e.g. '8.6').
  138 Setup this shell variable as follows:
  139 	ver="8.6"
  140 If you are building from CVS, omit this step (CVS source tree names usually do
  141 not contain a version number).
  143 - Setup environment variables as desired, e.g. for a universal build on 10.5:
  144 	CFLAGS="-arch i386 -arch x86_64 -arch ppc -mmacosx-version-min=10.5"
  145 	export CFLAGS
  147 - Change to the directory containing the Tcl source tree and build:
  148 	make -C tcl${ver}/macosx
  150 - Install Tcl onto the root volume (admin password required):
  151 	sudo make -C tcl${ver}/macosx install
  152 if you don't have an admin password, you can install into your home directory
  153 instead by passing an INSTALL_ROOT argument to make:
  154 	make -C tcl${ver}/macosx install INSTALL_ROOT="${HOME}/"
  156 - The default GNUmakefile targets will build _both_ debug and optimized versions
  157 of the Tcl framework with the standard convention of naming the debug library
  158 Tcl.framework/Tcl_debug.
  159 This allows switching to the debug libraries at runtime by setting
  160 	export DYLD_IMAGE_SUFFIX=_debug
  161 (c.f. man dyld for more details)
  163 If you only want to build and install the debug or optimized build, use the
  164 'develop' or 'deploy' target variants of the GNUmakefile, respectively.
  165 For example, to build and install only the optimized versions:
  166 	make -C tcl${ver}/macosx deploy
  167 	sudo make -C tcl${ver}/macosx install-deploy