[Openmcl-devel] ICU sketch
keke at gol.com
Sun Apr 22 09:06:51 EDT 2007
Gary Byers wrote:
> > ;;; About libicucore.dylib:
> > ;;;
> > ;;; ICU is preinstalled on Mac OSX Panther as
> > ;;; /usr/lib/libicucore.dylib (I don't know about Tiger or Leopard)
> It seems to be there in in later systems as well; I haven't looked
> extensively, but haven't been able to find any header files that
> describe what's there.
Header files are not installed on the system. Only libicucore.dylib
and /usr/share/icudt26b.dat are shipped with OS.
But they are available from darwin-source.
For instance, the OS X 10.4.9 Intel version is at:
I think it is better to use the official ICU version (for portablity).
I had a problem with it though. I wanted to create a framework
(e.g. icu.framework) so that I can use it from MCL. The straight build
creates serveral dylibs and they depend on each other and putting them
all into a framework folder did not work.
This is the dependency:
data library [ libicudata ]
common library [ libicuuc ]
i18n library Layout library
[libicui18n] [libicule and libiculx]
If I put them under non stardard location, open-shared-library fails
because the dylib cannot find the other lib it depends on.
> (open-shared-library "[...]/libicuuc.dylib")
--> error reporting libicudata.dylib.36 cannot be found.
$ otool -L libicuuc.dylib
I learned that I can use /usr/bin/install_name_tool together with
@executable_path to force a dylib to look for other dylib in a
non-standard location (relative to @executable_path). But it never
worked for MCL. It worked fine with OpenMCL.
There seems to be @load_path keyword (or something like that) to use
with install_name_tool, which tells a dylib to look for other lib
relative to its own path, but it is only available on Tiger or later.
It should be possible to build a standalone shared library like
apple does, but I don't know much about shared library and gave up.
> (defun icu-version ()
> (rlet ((version (:array :uint8_t 4)))
> (external-call "_u_getVersion" :address version :void)
> (list (paref version (:array :uint8_t) 0)
> (paref version (:array :uint8_t) 1)
> (paref version (:array :uint8_t) 2)
> (paref version (:array :uint8_t) 3))))
> The one machine I had that ran Panther got zapped by static electricity
> a few months ago. Could you please let me know what (ICU-VERSION) returns
> on Panther ?
(2 6 0 0)
> On OSX, CoreFoundation also offers a lot of utilities for dealing
> with Unicode.
I think many OSX API uses ICU internally.
"Do nothing for as long as possible."
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