Compile ICU for [P]NaCl

README.chromium

 Name: icu
 URL: http://site.icu-project.org/
 Version: 4.6
 License: MIT
 Security Critical: yes
 
 Description:
 This directory contains the source code of ICU 4.6 for C/C++
 
 1. It was obtained with the following:
@@ skipping 16 matching lines @@
      In case the file has to be updated you can do:
      cd /home/ports/textproc/icu4c && make configure
 
    - Rename it to 'plinux.h', 'pfreebsd.h', 'popenbsd.h' and 'pmac.h'
 
    - Apply patches/pmach.h.patch on Mac to pmac.h
 
    - On Android, the pandroid.h was generated by copying plinux.h to
      pandroid.h and applying the patches/pandroid.h.patch.
 
+   - For NaCl (icu_untrusted), the pnacl.h was generated by copying plinux.h to
+     pnacl.h and applying the patches/pnacl.h.patch.

[Mark Mentovai, 2013/12/20 19:03:00]

So this happens to the original plinux.h, not the patched plinux.h that the next
line (https://codereview.chromium.org/15973007/) references?

[Sergey Ulanov, 2013/12/20 19:36:21]

Good point - I didn't notice there is another patch applied to plinux.h .
Updated pnacl.h.patch so now it applies to the original plinux.h, before
https://codereview.chromium.org/15973007/ 

+
    - Apply the CL at https://codereview.chromium.org/15973007/ to plinux.h
 
 3. The following directories were removed because they're not used by Chromium
    at the moment:
    as_is
    packaging
    source/extra
    source/sample
    source/layout
    source/layoutex
 
 
 4. The word breaking for Chinese and Japanese were modified to use a word
    frequency list with the following patch and cjdict.txt.
-  
+
    - patches/segmentation.patch :
        Adds a dictionary (word-frequency)-based word breaking for CJK
        (Korean is supported in the code, but it does not do anything
         because we don't have a Korean word-list.)
 
    - source/data/brkitr/cjdict.txt :
        Chinese and Japanese word frequency list.
        See the file for license/copyright notice
 
    - source/data/brkitr/cc_edict.txt :
@@ skipping 106 matching lines @@
     Because we removed layout and layoutex directories in step 3,
     'runConfigureICU Linux' will fail even with '--disable-layout'. A
     work-around is to have a copy of our icu tree in a separate build directory
     and add back directories we removed in step 3 before
     running 'runConfigure'.
 
     'make' will fail in the 1st pass. Copy source/data/in/coll/invuca.icu
     to {BUILD_DIR_ROOT}/data/out/build/icudt46l/coll and re-run 'make'
     in {BUILD_DIR_ROOT}/data.
 
-    'make' will fail again when pkgdata looks for css3transform.res. Edit 
+    'make' will fail again when pkgdata looks for css3transform.res. Edit
     data/out/tmp/icudata.lst to replace 'css3transform.res' with 'root.res'.
     (see http://bugs.icu-project.org/trac/ticket/10570 ) and run 'make' again.
 
 
     - source/data/in/icudt46l.dat : Built on Linux with all the patches
-      above applied. This file will be generated in 
+      above applied. This file will be generated in
       {BUILD_DIR_ROOT}/data/out/tmp.
 
     - windows/icudt.dll : With icudt46l.dat in place, all the patches applied
       and header files moved (#11 below), generated by building icudt_build
       project of build/icudt_build.sln on Windows. icudt46.dll is
       generated in bin/{Release,Debug} and copied to windows/icudt.dll
       and checked in. Note that we drop the version number ('46') from the
       dll name to avoind having to update our build scripts/configuration
       files everytime ICU is upgraded to a new version.
 
@@ skipping 53 matching lines @@
    - upstream bug: http://bugs.icu-project.org/trac/ticket/8290
 
 17. Fix a use of uninitialized memory bug in regular expression matching
    - patches/rematch.patch
    - upstream bug: http://bugs.icu-project.org/trac/ticket/8824
 
 18. Make it compile with -Werror on gcc 4.6
    - patches/gcc46.patch (ToT upstream does not have this code any more).
 
 19. Fix four out of bounds memory access error in common/uloc.c
-    and common/uresbund.c 
+    and common/uresbund.c
    - patches/uloc.patch
-   - upstream bug: 
+   - upstream bug:
      1. http://bugs.icu-project.org/trac/ticket/8984 (_canonicalize)
      2. http://bugs.icu-project.org/trac/ticket/9114 (_getKeywords)
      3. http://bugs.icu-project.org/trac/ticket/8812 (uresbund)
         http://bugs.icu-project.org/trac/ticket/8813 (uresbund)
      4. http://bugs.icu-project.org/trac/ticket/10250 (_getKeywords)
 
 20. Fix a null pointer error in ubrk_setText in ubrk.cpp.
     - patches/ubrk.patch
     - upstream bug : http://bugs.icu-project.org/trac/ticket/9115
 
@@ skipping 13 matching lines @@
 24. Fix compilation errors on VS2012 and above.
     - patches/vs2012.patch
 
 25. Fix a buffer overflow in UTF-16/32 detection.
     - patches/csetdet.patch
     - upstream bug: http://bugs.icu-project.org/trac/ticket/10318
 
 26. Add BreakIterator::getRuleStatus
     - patches/breakiterator.patch
     - Copy and paste BreakIterator::getRuleStatus API from ICU 52