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How To Use Patch Files
ICU may distribute small change files called 'patch' files. Patch is a standard format which describes the difference between two files.
Getting Patch
-
Unix-like systems
Many UNIX systems already have patch installed. If you experience problems with your vendors' patch program, look for a distribution of the GNU patch program for your platform. The GNU-patch homepage is http://www.gnu.org/software/patch/
-
Win32
A port of GNU-Patch is available from a number of places, here are a few:- patc25w.zip (112k) contains only patch.exe (part of the programmers toolbox, http://hp.vector.co.jp/authors/VA010446/toolbox1/) (Japanese)
- http://unxutils.sourceforge.net/ - collection of GNU utilities
- http://www.braindonors.net/home/jalifrangis/UnxUtils.asp - Windows installer for the unxutils package
- The Cygwin project (www.cygwin.com) includes a patch command.
Using Patch
- Download the patch file as a text file
- Place the patch file in the 'icu' directory (at the same level as 'source')
- Run the command: patch -p0 < patchfile.txt
- If you are using a GNU patch, there is an option '--dry-run' which can be used to test whether a patch will work or not, without actually applying it.