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Diffstat (limited to 'macosx/README')
| -rw-r--r-- | macosx/README | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/macosx/README b/macosx/README index 8fad1a0..ff002ca 100644 --- a/macosx/README +++ b/macosx/README @@ -1,7 +1,7 @@ Tcl/Tk Mac OS X README ---------------------- -RCS: @(#) $Id: README,v 1.6.2.10 2005/11/27 06:44:16 das Exp $ +RCS: @(#) $Id: README,v 1.6.2.11 2006/07/20 06:27:34 das Exp $ This is the README file for the Mac OS X/Darwin version of Tcl/Tk. @@ -43,9 +43,12 @@ TkAqua and TkX11 can be distinguished at runtime via [tk windowingsystem]. required to run TkAqua. However OS X 10.3 or higher is recommended (certain [file] operations behave incorrectly on earlier releases). -- Tcl/Tk built on Mac OS X 10.x will not run on 10.y for y < x, on the other -hand Tcl/Tk built on 10.y will run on 10.x for y < x (but without any of the -fixes and optimizations that would be available in a binary built on 10.x). +- Unless weak-linking is used, Tcl/Tk built on Mac OS X 10.x will not run on +10.y with y < x; on the other hand Tcl/Tk built on 10.y will always run on 10.x +with y <= x (but without any of the fixes and optimizations that would be +available in a binary built on 10.x). +Weak-linking is available on OS X 10.2 or later, it additionally allows Tcl/Tk +built on 10.x to run on any 10.y with x > y >= z (for a chosen z >= 2). - Wish checks the Resources/Scripts directory in its application bundle for a file called AppMain.tcl, if found it is used as the startup script and the @@ -151,11 +154,10 @@ tcl/macosx and tk/macosx (see below for details), but can also be built with the standard unix configure and make buildsystem in tcl/unix resp. tk/unix as on any other unix platform (indeed, the GNUmakefiles are just wrappers around the unix buildsystem). -The Mac OS X specifc configure flags are --enable-aqua, --enable-framework and +The Mac OS X specific configure flags are --enable-aqua, --enable-framework and --disable-corefoundation (which disables CF and notably reverts to the standard -select based notifier, you will only need this if your require use of naked fork -(i.e. not followed by execve) in an unthreaded core). Note that --enable-aqua is -incompatible with --disable-corefoundation (for both Tcl and Tk configure). +select based notifier). Note that --enable-aqua is incompatible with +--disable-corefoundation (for both Tcl and Tk configure). - It is also possible to build with Apple's IDE via the tk/macosx/Wish.pbproj project, this simply calls through to the tk/macosx/GNUMakefile. It requires a @@ -165,7 +167,7 @@ build of the tcl/macosx/Tcl.pbproj project. export CFLAGS="-arch ppc -arch i386 \ -isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4" This requires Mac OS X 10.4 and Xcode 2.2 (_not_ Xcode 2.1) and will work on -any of the architectures (on i386 DTKs, the -isysroot is not required). +any of the architectures (on intel Macs, the -isysroot is not required). Note that it is not possible to configure correctly if the current architecture is not present in CFLAGS (i.e. -arch `arch` must always be there). Universal builds of Tk TEA extensions are also possible with CFLAGS set as @@ -175,7 +177,18 @@ TkX11 can be built with -arch ppc64 as the corresponding GUI libraries are not available for 64bit at present. However, linking a universal 'ppc i386' Tk binary against a universal 'ppc ppc64 i386' Tcl binary works just fine. The Tk configure script automatically removes '-arch ppc64' from CFLAGS to -facilitate universal building of both Tcl and Tk with the same CFLAGS setting. +facilitate universal building of both Tcl and Tk with the same CFLAGS setting; +the same happens with configure in Tk extensions based on TEA 3.5 or later. + +- To enable weak-linking, set the MACOSX_DEPLOYMENT_TARGET environment variable +to the minimal OS version (>= 10.2) the binaries should be able to run on, e.g: + export MACOSX_DEPLOYMENT_TARGET=10.2 +This requires Mac OS X 10.2 and gcc 3.1; if you have gcc 4 or later you can set +CFLAGS instead: + export CFLAGS="-mmacosx-version-min=10.2" +The Wish.xcodeproj is setup to produce binaires that can run on 10.2 or later, +except for the 'ReleaseUniversal'configuration, where they require 10.4. +Support for weak-linking was added to the code for 8.4.14/8.5a5. Detailed Instructions for building with macosx/GNUmakefile ---------------------------------------------------------- @@ -216,8 +229,8 @@ instead by passing an INSTALL_ROOT argument to make: - The default Makefile targets will build _both_ debug and optimized versions of the Tcl and Tk frameworks with the standard convention of naming the debug library Tcl.framework/Tcl_debug resp. Tk.framework/Tk_debug. -This allows you to dynamically link to the debug libraries at runtime by setting - setenv DYLD_IMAGE_SUFFIX _debug +This allows switching to the debug libraries at runtime by setting + export DYLD_IMAGE_SUFFIX=_debug (c.f. man dyld for more details) If you only want to build and install the debug or optimized build, use the |