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.
+
    - 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/icudtl.dat : Built on Linux with all the patches
-      above applied. icudt46l.dat is generated in 
+      above applied. icudt46l.dat is generated in
       {BUILD_DIR_ROOT}/data/out/tmp and copied to the above location with a
       version number (46) dropped.
 
     - 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.
 
     - {mac,linux}/icudt46l_dat.S : Built on Linux with all the
       patches above (except android/brkitr.patch) applied and checked in.
       This file will be generated in {BUILD_DIR_ROOT}/data/out/tmp.
 
       mac/icudt46l_dat.S is identical to linux/icudt46l_dat.S. It's made
       by changing the header portion of the Linux version to read as following
-      (no leading whitespace) : 
+      (no leading whitespace) :
 
           .globl _icudt46_dat
           #ifdef U_HIDE_DATA_SYMBOL
                  .private_extern _icudt46_dat
           #endif
                  .data
                  .const
                  .align 4
           _icudt46_dat:
 
 
     - android/icudt46l_dat.S : Built on Linux with all the patches above and
       android/brkitr.patch applied and android/patch_locale.sh executed, and
       checked in.
-    - android/icudtl.dat : Generated as icudt46l.dat in 
-      {BUILD_DIR_ROOT}/data/out/tmp along with icudt46l_dat.S and 
+    - android/icudtl.dat : Generated as icudt46l.dat in
+      {BUILD_DIR_ROOT}/data/out/tmp along with icudt46l_dat.S and
       copied to the above location with '46' dropped in its name.
 
 
 12. Apply the fix found with static analysis tools such as PSV and coverity
 
   - patches/static.analysis.patch
   - upstream trunk/4.8 do not have this code any more.
 
 13. Fix for msvs2010 applied:
 --- D:/src/ent/src/third_party/icu/source/common/stringpiece.cpp
@@ skipping 24 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