Test repository to check push and ssh key
Find a file
2012-02-26 14:58:33 +01:00
accessibility WaE: ununsed variables 2012-02-20 12:20:59 +00:00
afms
android android: more libs corrections 2012-02-24 16:53:15 +00:00
animations Prefer equalsIgnoreAsciiCaseAsciiL(RTL_CONSTASCII_STRINGPARAM("...")) 2012-02-18 23:19:41 +09:00
apache-commons
apple_remote
autodoc Get rid of size() == 0 2012-02-19 17:07:46 +04:00
avmedia Removed unused code from avmedia. 2012-02-18 09:55:46 +00:00
basctl Prefer equalsIgnoreAsciiCaseAsciiL(RTL_CONSTASCII_STRINGPARAM("...")) 2012-02-18 23:19:41 +09:00
basebmp
basegfx definition was removed, remove declaration as well 2012-02-26 16:32:56 +04:00
basic basic: tolerate empty / missing dialog.xlc and script.xlc files 2012-02-24 16:46:47 +00:00
bean gb_JunitTest_JunitTest takes only one argument 2012-02-20 16:39:59 +01:00
beanshell
berkeleydb
bin
binaryurp Adapted Reader/Writer to safer-to-use salhelper::Thread 2012-02-23 10:47:36 +01:00
boost
bridges ARM bridge: fixes for passing double arguments on the stack 2012-02-21 01:15:02 +02:00
cairo Fix build of generic unix vcl plugin with older fontconfig 2012-02-21 09:51:18 +01:00
canvas Remove unused code 2012-02-25 20:33:57 +00:00
chart2 Get rid of CREATEVERSIONRESMGR[_NAME] 2012-02-23 17:05:10 +01:00
cli_ure remove extraneous qualifiers that break some compilers 2012-02-17 15:22:46 +00:00
clucene make this consistent 2012-02-25 13:10:42 +01:00
codemaker
comphelper add AddFilterNameCheckOwnFile back for WNT 2012-02-26 00:03:21 +01:00
configmgr Resolves fdo#46074: Fix Partial::contains for paths that go past a leaf node 2012-02-24 17:41:51 +01:00
connectivity Tabs to spaces, no code changed 2012-02-23 22:58:03 +07:00
cosv
cppcanvas Removed unused code from cppcanvas 2012-02-17 15:48:23 +00:00
cppu Some doxygen warnings cleanup 2012-02-23 22:58:06 +07:00
cppuhelper Some doxygen warnings cleanup 2012-02-23 22:58:06 +07:00
cppunit
cpputools
crashrep
cross_toolset Tentatively drop gettext from cross_toolset 2012-02-23 22:59:59 +02:00
ct2n
cui Adapted SearchThread/TakeThread to safer-to-use salhelper::Thread 2012-02-23 10:47:36 +01:00
curl
dbaccess Adapted AsyncEventNotifier to safer-to-use salhelper::Thread 2012-02-23 10:47:37 +01:00
desktop android: remove annoying & un-necessary dialog on start 2012-02-24 11:05:57 +00:00
distro-configs MinGW: Don't build PostgreSQL, not cross-compiling at the moment. 2012-02-24 18:54:37 +01:00
dmake later cygwins have a different locaton for process.h 2012-02-21 16:34:10 +01:00
drawinglayer Removed unused code from drawinlayer 2012-02-17 15:47:02 +00:00
dtrans Use emptiness check rather than size check for efficiency 2012-02-17 15:22:29 +00:00
editeng unusedcode.easy: remove unused code 2012-02-24 05:33:53 +01:00
embeddedobj
embedserv
epm
eventattacher
expat
extensions default conversion of sequences is now again SAFEARRAY of VARIANTs #fdo46165 2012-02-23 14:57:12 +00:00
external Bundle again C++ stdlibs with generic Linux build 2012-02-22 09:25:44 +01:00
extras
fileaccess
filter Avoid temporary rtl::OUString 2012-02-26 14:16:34 +01:00
fontconfig
forms Adapted AsyncEventNotifier to safer-to-use salhelper::Thread 2012-02-23 10:47:37 +01:00
formula
fpicker Disable WaE in fpicker/source/unx/kde 2012-02-24 23:17:07 +01:00
framework Remove unused code as listed in unusedcode.easy 2012-02-23 13:41:59 +00:00
freetype
gdk-pixbuf
gettext
git-hooks
glib
graphite
guw
hsqldb
hunspell Use STDLIBCUIMT so that the sample executables link for Android 2012-02-18 01:49:26 +02:00
hwpfilter WaE: duplicateBranch 2012-02-21 20:56:59 +01:00
hyphen
i18npool fdo#46411 added [pjt-AU] Pitjantjatjara to language list 2012-02-23 12:27:00 +01:00
i18nutil
icc
icon-themes packimages: convert to gbuild 2012-02-17 20:02:45 +01:00
icu fix icu build on arm 2012-02-17 16:40:46 +01:00
idl
idlc
instsetoo_native remove unused parameter EVAL 2012-02-24 13:59:15 +01:00
io Fix typos in comments 2012-02-18 09:35:43 +00:00
javaunohelper
jfreereport
jpeg
jurt Fix typos in comments 2012-02-18 09:35:43 +00:00
jvmaccess We want gb_STDLIBS here surely? 2012-02-17 18:09:55 +02:00
jvmfwk Adapted AsynchReader to safer-to-use salhelper::Thread 2012-02-23 10:47:36 +01:00
l10ntools print what directory localize tool cannot open 2012-02-26 10:16:05 +01:00
languagetool
libcdr And silence warnings in libcdr too 2012-02-23 13:52:21 +01:00
libcmis
libcroco Tentative libcroco fix for Mac OS X --without-system-libxml 2012-02-23 16:29:05 +01:00
libexttextcat
libgsf
libpng
librsvg
libvisio Fix libvisio's makefile.mk 2012-02-20 10:41:03 +01:00
libwpd
libwpg
libwps
libxml2 set back rpath to ure/lib for libxml on MAC 2012-02-23 11:10:53 +01:00
libxmlsec
libxslt support using for libxml2 internal on MacOSX 2012-02-22 16:51:21 -06:00
lingucomponent
linguistic gb_JunitTest_JunitTest takes only one argument 2012-02-20 16:39:59 +01:00
lotuswordpro Get rid of size() == 0 2012-02-19 17:07:46 +04:00
lpsolve
lucene
m4 allow to pass default dll list 2012-02-21 14:01:01 +01:00
MathMLDTD
mdds
Mesa
migrationanalysis
more_fonts
moz Revert "Work around g++ -std=c++0x rejecting "typeof" keyword" 2012-02-24 14:06:19 +01:00
mysqlc
mysqlcppconn
mythes fix mingw build of mythes with system hunspell 2012-02-20 14:28:10 +01:00
neon
nlpsolver
np_sdk np_sdk: remove unused macros 2012-02-18 21:33:04 +01:00
nss nss unix/os_Linux_x86.s asterix as comment character 2012-02-20 16:32:51 +00:00
o3tl
odk remove cleanzip.pl 2012-02-20 20:39:01 +01:00
offapi Revert "offapi: remove obsolete XInplaceLayout" 2012-02-18 22:16:30 +01:00
officecfg fdo#46571 add Gurmukhi MT font for pa-IN 2012-02-24 23:17:01 +01:00
oovbaapi
oox fix oox debug build with DBG_UTIL guard for 'dump' usage 2012-02-24 11:22:29 +00:00
openssl
package WaE: unused variable 2012-02-17 16:36:04 +00:00
packimages use gb_Helper_PHONY here 2012-02-25 00:31:30 +01:00
padmin
pango
postgresql
postprocess just link to HelpIndexer 2012-02-23 10:31:20 +00:00
psprint_config Fix typos in comments 2012-02-18 09:35:43 +00:00
python Revert "add dylib to the list of native python modules for Mac (for pyuno.dylib)" 2012-02-22 10:51:32 +01:00
pyuno Adapted GCThread to safer-to-use salhelper::Thread 2012-02-23 10:47:35 +01:00
qadevOOo gb_JunitTest_JunitTest takes only one argument 2012-02-20 16:39:59 +01:00
rdbmaker
readlicense_oo fix mailing list addresses 2012-02-22 13:54:13 +01:00
redland Disable problematic reading of external entities in raptor 2012-02-22 17:00:25 +01:00
regexp
registry WaE: silence some documentation errors 2012-02-21 23:16:31 +01:00
remotebridges
reportbuilder reportbuilder: untested fix for WITH_LANG build 2012-02-23 12:40:43 +01:00
reportdesign fdo#44611 writer: paragraph background color picker with split button 2012-02-21 14:50:04 +00:00
rhino
ridljar Make ridljar JunitTests work 2012-02-20 12:10:39 +01:00
rsc
sal Avoid temporary rtl::OUString 2012-02-26 14:58:33 +01:00
salhelper salhelper::Thread::launch: check create() failure 2012-02-24 08:20:32 +01:00
sane
sax Avoid temporary rtl::OUString 2012-02-26 14:58:33 +01:00
saxon
sc Avoid temporary rtl::OUString 2012-02-25 23:18:57 +09:00
scaddins expand and remove CSS* macro 2012-02-21 14:02:45 +01:00
sccomp Get rid of CREATEVERSIONRESMGR[_NAME] 2012-02-23 17:05:10 +01:00
scp2 fdo#46377 BASISINSTALLLOCATION = INSTALLLOCATION 2012-02-24 11:46:39 +01:00
scripting expand and remove dcsssf macro 2012-02-21 20:56:57 +01:00
sd Avoid temporary rtl::OUString 2012-02-26 14:58:33 +01:00
sdext Avoid temporary rtl::OUString 2012-02-26 14:58:33 +01:00
setup_native Fix build of the optional stdlibs package on Linux 2012-02-22 15:12:44 +01:00
sfx2 Get rid of CREATEVERSIONRESMGR[_NAME] 2012-02-23 17:05:10 +01:00
shell Get rid of size() == 0 2012-02-19 17:07:46 +04:00
slideshow Prefer equalsIgnoreAsciiCaseAsciiL(RTL_CONSTASCII_STRINGPARAM("...")) 2012-02-21 01:07:21 +09:00
smoketest we do want also create library for smoketest and deliver it 2012-02-20 02:37:42 +01:00
solenv Fix typos 2012-02-26 09:17:05 +02:00
soltools ST_InfoListReader and ST_InfoListWriter seem to be unused 2012-02-19 16:57:31 +04:00
sot unusedcode.easy: OwnerLock includes this feature 2012-02-24 05:33:50 +01:00
starmath Avoid temporary rtl::OUString 2012-02-26 14:58:33 +01:00
stax
stlport stlport stl/_locale.h new operator unrecognized 2012-02-20 16:32:51 +00:00
stoc Avoid temporary rtl::OUString 2012-02-26 14:58:33 +01:00
store WaE: silence some documentation errors 2012-02-21 23:16:31 +01:00
svl Get rid of CREATEVERSIONRESMGR[_NAME] 2012-02-23 17:05:10 +01:00
svtools Get rid of CREATEVERSIONRESMGR[_NAME] 2012-02-23 17:05:10 +01:00
svx unusedcode.easy: remove unused code 2012-02-24 05:33:53 +01:00
sw Avoid temporary rtl::OUString 2012-02-26 14:58:33 +01:00
swext
sysui Get rid of CREATEVERSIONRESMGR[_NAME] 2012-02-23 17:05:10 +01:00
tail_build add configmgr to tail_build 2012-02-19 19:24:34 +01:00
test test: remove, now redundant dummy dialog.xlc / script.xlc 2012-02-24 16:46:49 +00:00
testtools WaE: arrayIndexOutOfBounds 2012-02-21 20:57:06 +01:00
tomcat
toolkit toolkit: fix module name for svt to 'merged' when using mergedlibs 2012-02-24 16:46:48 +00:00
tools don't point inline at non-existing method 2012-02-23 20:45:03 +00:00
twain
ucb remove all other deprecated header guards 2012-02-23 12:22:39 +01:00
ucbhelper Get rid of CREATEVERSIONRESMGR[_NAME] 2012-02-23 17:05:10 +01:00
udkapi
udm
unixODBC
UnoControls expand and remove CSS* macro 2012-02-21 14:02:45 +01:00
unodevtools unodevtools: remove dead code 2012-02-18 21:33:04 +01:00
unoil
unotest We want gb_STDLIBS here surely? 2012-02-17 18:09:55 +02:00
unotools expand and remove NS_* macro 2012-02-21 14:02:45 +01:00
unoxml gb_JunitTest_JunitTest takes only one argument 2012-02-20 16:39:59 +01:00
ure
uui Get rid of CREATEVERSIONRESMGR[_NAME] 2012-02-23 17:05:10 +01:00
vbahelper Fix "never read" reported by clang 2012-02-17 23:02:48 +01:00
vcl android: move DamageTracker concept into SvpSalFrame and try to use it 2012-02-25 14:17:57 +00:00
vigra
wizards fdo#46339: Fix Query Wizard by putting the right ElementName 2012-02-23 20:00:40 +01:00
writerfilter fdo#45187 revert "writerfilter import, fixed the shapes import" 2012-02-24 15:43:24 +01:00
writerperfect Improve (?) explanation 2012-02-20 13:38:46 +02:00
x11_extensions
xmerge WaE: unreadVariable 2012-02-21 20:57:05 +01:00
xml2cmp
xmlhelp remove all other deprecated header guards 2012-02-23 12:22:39 +01:00
xmloff unusedcode.easy: remove unused code 2012-02-24 05:33:53 +01:00
xmlreader
xmlscript
xmlsecurity Fix "pEncryptedData" not initialized 2012-02-18 08:04:53 +01:00
xpdf
xsltml
zlib
.gitattributes
.gitignore do not hide patch-related file (.orig .rej) 2012-02-18 18:41:03 -06:00
.src_root
autogen.sh add macro for extracting mingw dll names from libtool files 2012-02-17 15:53:58 +01:00
bootstrap
config.guess
config.sub
config_host.mk.in Removed unused --enable-ugly 2012-02-24 17:41:51 +01:00
configure.in Removed unused --enable-ugly 2012-02-24 17:41:51 +01:00
COPYING
COPYING.LGPL
COPYING.MPL
download
g
install-sh
Library_merged.mk add configmgr, ucb1, ucpfile1, xcr to libmerged 2012-02-19 19:24:34 +01:00
Makefile Make sure headers are "delivered" also for libs that are bypassed for iOS 2012-02-23 22:59:57 +02:00
Module_tail_build.mk add configmgr to tail_build 2012-02-19 19:24:34 +01:00
ooo.lst.in New release of libcdr 0.0.3, the best FOSS CDR converter ever 2012-02-23 13:34:24 +01:00
oowintool
post.Makefile
post_download.in
README.Android
README.cross Updates for iOS, and Xcode 4.3 2012-02-22 22:35:56 +02:00
Repository.mk jvmfwk is versioned 2012-02-22 11:01:34 +01:00
RepositoryExternal.mk
RepositoryFixes.mk More --disable-database-connectivity work, still experimental 2012-02-21 14:19:49 +02:00
RepositoryModule_ooo.mk gbuild'ize smoketest(oo_native) and merge them 2012-02-19 19:24:32 +01:00
TEMPLATE.SOURCECODE.HEADER
unusedcode.easy Remove unused code 2012-02-25 20:33:57 +00:00

Cross-compiling LibreOffice
===========================

The cross-compilation experimentation is going on for four platforms:
Windows, iOS, Android and PowerPC Mac OS X. It happens in the master
branch of LibreOffice. Some people have talked about setting up a
separate branch for Android work, or even separate clones at github,
but that is not necessary.

Cross-compilation of LibreOffice completely is not possible yet. Much
work has been done, "baby steps" for some platforms, much more for
others, but a lot remains. For iOS and Android this work is highly
experimental, originally done in spare time just for the hacking
pleasure. No promise, explicit or implied, is given that it will ever
be finished.

Searching for information about cross-compilation of OpenOffice.org
(the predecessor of LibreOffice) you will find information about what
actually was not cross-compilation, but using QEMU.


General
-------

In GNU Autoconf terminology, "build" is the platform on which you are
running a build on some software and "host" is the platform on which
the software you are building will run. Only in the specific case of
building compilers and other programming tools is the term "target"
used to indicate the platform for which the tools your are building
will produce code. As LibreOffice is not a compiler, the "target" term
should not be used in the context of cross-compilation.

(For a case where all three of "build", "host" and "target" are
different: consider a gcc cross-compiler running on Windows, producing
code for Android, where the cross-compiler itself was built on
Linux. (This is a real case.) An interesting tidbit is that such
configurations are called "Canadian Cross".)

Even though the LibreOffice build mechanism is highly unorthodox, the
configure script takes the normal --build and --host options like any
GNU Autoconf -based configure script. To cross-compile, you basically
need just to specify a suitable --host option and things should work
out nicely. In practise, many details needed to be handled. See
examples below.


What is so hard, then?
----------------------

Despite the fact that the configure script takes normal --build and
--host options, that is just the beginning. In practise a lot of work
was necessary to separate tests for "host" and "build" platforms in
the configure script. See the git log for details. And the reasonably
"standard" configure.in is just the top level; when we get down to the
actual makefilery used to build the bits of LibreOffice, it gets much
worse.


Windows
-------

There is some support in LibreOffice already (from OpenOffice.org) for
building it locally on Windows with the GNU tool-chain
(MinGW). Apparently, that work has never attempted cross-compilation.

This OOo-originated MinGW support attempts to support both running
Cygwin gcc in its -mno-cygwin mode, and a native MinGW compiler. The
-mno-cygwin mechanism in the Cygwin gcc is rapidly being obsoleted, if
it isn't already, and we have not attempted to try to keep it working;
in fact we have activly cleaned out mechanisms related to this. Ditto
for native MinGW. If one compiles natively on Windows, just use
Microsoft's compiler. OOo/LO has been built for Windows all the time
using that.

The only case where it makes sense to use MinGW is for
cross-compilation. There is just too much crack on Windows anyway, and
it is a semi-miracle (well, make that the result of years of work)
that the MSVC build under Cygwin works as nicely as it does.

MinGW is available as cross-build toolchains pre-packaged in more or
less official packages for many Linux distros including Debian,
Fedora, openSUSE and SLE. For instance the mingw32 packages in the
Open Build Service, running on openSUSE:

http://download.opensuse.org/repositories/windows:/mingw:/win32/

For example, you can install it like this:

zypper ar http://download.opensuse.org/repositories/windows:/mingw:/win32/<your_os>/windows:mingw:win32.repo

where <your_os> is one of SLE_11, SLE_11_SP1, openSUSE_11.3, openSUSE_11.4 or
openSUSE_Factory.

zypper in mingw32-cross-gcc mingw32-cross-gcc-c++ mingw32-python-devel \
    mingw32-libexpat-devel mingw32-libexpat mingw32-boost-devel \
    mingw32-libhyphen-devel mingw32-libhyphen mingw32-hyphen-en \
    mingw32-liblpsolve mingw32-liblpsolve-devel \
    mingw32-libxml2-devel mingw32-libxslt-devel mingw32-libicu \
    mingw32-libicu-devel mingw32-libgraphite2 mingw32-libgraphite2-devel \
    mingw32-libcairo2 mingw32-cairo-devel mingw32-librsvg mingw32-librsvg-devel \
    mingw32-hunspell mingw32-hunspell-devel mingw32-libcurl \
    mingw32-libcurl-devel mingw32-libneon mingw32-libneon-devel \
    mingw32-libopenssl mingw32-libopenssl-devel mingw32-libexttextcat \
    mingw32-libexttextcat-devel mingw32-libdb mingw32-libdb-devel \
    mingw32-cross-pkg-config mingw32-pkg-config mingw32-libcppunit \
    mingw32-libcppunit-devel mingw32-libredland mingw32-libredland-devel \
    mingw32-libmythes mingw32-libmythes-devel

There might be more that are missing, please read carefully what autogen.sh
tells you, and either remove one of the --with-system-*, or install the
missing dependency.

It also looks like graphite2.pc needs tweaking in order to work right; but
that's likely to be fixed in the openSUSE project.

It is somewhat unclear how well thought-out the conditionals and code
for MinGW inside the OOo-originated code in LibreOffice actually
are. It often seems a bit randomish, with copy-pasting having been
preferred to factoring out differences.

Most of the configuration settings are maintained in the
distro-configs/LibreOfficeMinGW.conf file, so in your autogen.lastrun,
you can use:

CC=ccache i686-w64-mingw32-gcc
CXX=ccache i686-w64-mingw32-g++
CC_FOR_BUILD=ccache gcc
CXX_FOR_BUILD=ccache g++
--with-distro=LibreOfficeMinGW

Alternatively, you can use something like the following; but the
preferred way is to keep the LibreOfficeMinGW.conf file up-to-date.

CC=ccache i686-w64-mingw32-gcc
CXX=ccache i686-w64-mingw32-g++
CC_FOR_BUILD=ccache gcc
CXX_FOR_BUILD=ccache g++
--build=x86_64-unknown-linux-gnu
--host=i686-w64-mingw32
--with-distro=LibreOfficeWin32
--disable-activex
--disable-binfilter
--disable-build-mozilla
--disable-directx
--disable-ext-nlpsolver
--disable-ext-pdfimport
--disable-ext-presenter-console
--disable-ext-presenter-minimizer
--disable-ext-report-builder
--disable-ext-scripting-beanshell
--disable-ext-scripting-javascript
--disable-ext-wiki-publisher
--disable-ext-wiki-publisher
--disable-mozilla
--disable-nss-module
--disable-zenity
--enable-python=system
--with-external-tar=/mnt/hemulen/ooo/git/master/src
--with-num-cpus=1
--with-max-jobs=1
--with-system-altlinuxhyph
--with-system-boost
--with-system-cairo
--with-system-cppunit
--with-system-curl
--with-system-db
--with-system-expat
--with-system-gettext
--with-system-hunspell
--with-system-icu
--with-system-libpng
--with-system-libwpd
--with-system-libwpg
--with-system-libwps
--with-system-libxml
--with-system-lpsolve
--with-system-mythes
--with-system-neon
--with-system-openssl
--with-system-redland
--with-vendor=no
--without-help
--without-helppack-integration
--without-myspell-dicts

Once you have compiled it, you may want to try to run it:

$ cd /tmp
$ tar xf <your-build-dir>/instsetoo_native/wntgcci.pro/LibreOffice_Dev/archive/install/en-US/LibO-Dev_3.6.0alpha0_Win_x86_install-arc_en-US.tar.gz
$ cd LibO-Dev_3.6.0alpha0_Win_x86_install-arc_en-US/LOdev\ 3.6/program
$ wine soffice.exe

NB. it is important to unpack somewhere low in the hierarchy structure (like
in /tmp as advised above), otherwise you'll get BerkeleyDB errors on startup.

And if you are brave enough, you can even debug it.  First you have to add the
URE dll's to the wine's PATH using 'wine regedit' - see
http://www.winehq.org/docs/wineusr-guide/environment-variables, and add
Z:\tmp\LibO-Dev_3.6.0alpha0_Win_x86_install-arc_en-US\LOdev 3.6\URE\bin
to "Path" in My Computer->HKEY_CURRENT_USER->Environment.

Then run linkoo, so that when you rebuild something, you can directly see the
changes the next time you run it:

solenv/bin/linkoo '/tmp/LibO-Dev_3.6.0alpha0_Win_x86_install-arc_en-US/LOdev 3.6' <your_clone_dir>

And start debugging:

$ winedbg soffice.bin

Would be great to be able to use winedbg --gdb, but it was crashing here :-( -
but maybe you'll be more lucky.

TODO:

- installation
  - so far the make_installer.pl calls makecab.exe, uuidgen.exe, and
    others; would be best to avoid that if at all possible (using a free
    cab implementation, part of Wine or something)
  - MSI generation
  - if at all possible, the make dev-install installation (with links
    back to the build) should be done so that it would be directly
    executable via wine after doing make dev-install :-)

- runtime
  - no idea if the entire thing works after the installation at all; I
    suppose there will be runtime problems to look at too

- cleanup
  - enable & fix pieces that are currently disabled
    - --without-myspell-dicts
    - --disable-directx
    - --disable-activex
    - --disable-mozilla
  - much of the stuff currently relies on --with-system-*, and
    consequently on the mingw32-* openSUSE packages; might be good to be
    able to build with as few dependencies as possible - but that is low
    prio

- profiling
  - when all the above is sorted out, we should look at the speed of
    this vs. the speed of the MSVC version


iOS
---

iOS is the operating system of Apple's mobile devices. Clearly for a
device like the iPad it would be totally unacceptable to run a normal
LibreOffice application with a overlapping windows and mouse-oriented
GUI widgets. No work has been done (at least publicly) by others to
design a touch GUI for LibreOffice, so that is something that needs to
be done.

Obviously it will make sense to use only a part of LibreOffice's code
for iOS. Most likely lots of the GUI-oriented code should be left out,
and some iOS app(s) that eventually wants to use the remaining bits
will handle all its GUI in a platform-dependent manner. How well it
will be possible to do such a split remains to be seen.

Technically, one important special aspect of iOS is that apps are not
allowed to load own dynamic libraries. (System libraries are used in
the form of dynamic libraries, just like on Mac OS X, of which iOS is a
variant.) So all the libraries in LibreOffice that normally are shared
libraries (DLLs on Windows, shared objects (.so) on Linux, dynamic
libraries on Mac OS X (.dylib)) need to be built as static archives
instead. Obviously this will have some interesting consequences for
how UNO is implemented and used. None of that has been spared much
thought yet.

The Apple tool-chain for iOS cross-building is available only for
Mac OS X.

Here is an autogen.lastrun for iOS (device):
CXX=ccache /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/g++ -arch armv7 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk
CC=ccache /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -arch armv7 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk
CC_FOR_BUILD=ccache /Xcode3/usr/bin/gcc-4.0 -mmacosx-version-min=10.4
CXX_FOR_BUILD=ccache /Xcode3/usr/bin/g++-4.0 -mmacosx-version-min=10.4
--with-distro=LibreOfficeiOS
--with-external-tar=/Volumes/ooo/git/master/src
--with-system-nss
--without-help
--without-helppack-integration
--without-myspell-dicts

And here for the iOS simulator, using Xcode 4.2:
CXX=ccache /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/g++ -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk
CC=ccache /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk
CC_FOR_BUILD=ccache /Xcode3/usr/bin/gcc-4.0 -mmacosx-version-min=10.4
CXX_FOR_BUILD=ccache /Xcode3/usr/bin/g++-4.0 -mmacosx-version-min=10.4
--with-distro=LibreOfficeiOS
--with-external-tar=/Volumes/ooo/git/master/src
--with-system-nss
--enable-debug
--without-help
--without-helppack-integration
--without-myspell-dicts

It seems that with the latest iOS SDK one has to do:
sudo ln -s i686-apple-darwin10 /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/usr/include/c++/4.2.1/i686-apple-darwin11
or g++ won't find its headers like <bits/c++config.h>

The --with-system-nss doesn't mean that any Mozilla NSS would be used,
it's just a trick to bypass some tests in the configure script.

For the iOS simulator, using Xcode 4.3:

CXX=ccache /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/g++ -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk
CC=ccache /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk
CC_FOR_BUILD=ccache /Xcode3/usr/bin/gcc-4.0 -mmacosx-version-min=10.4
CXX_FOR_BUILD=ccache /Xcode3/usr/bin/g++-4.0 -mmacosx-version-min=10.4
--enable-werror
--with-distro=LibreOfficeiOS
--with-external-tar=/Users/tml/lo/10.4/src
--with-system-nss
--without-help
--without-helppack-integration
--without-myspell-dicts

Note that you will have to install autoconf and automake yourself
before running autogen.sh. They are no longer included in Xcode 4.3
(not even in the add-on "command line tools").


Android
-------

From a technical point of view the core Android OS is Linux, but
everything else is different. Unlike iOS, an Android app can use
shared objects just fine, so that aspect of UNO doesn't need special
handling.

As for the GUI, the same holds as said above for iOS.

Android cross-compilation work has been done on Linux (openSUSE in
particular) and Mac OS X. The Android cross-buld tool-chain (the
"Native Development Kit", or NDK) is available for Linux, Mac OS X and
Windows. (Trying to cross-compile from Windows will probably drive you
insane.)

Here is an autogen.lastrun for Android, when cross-compiling from Mac OS X:

CC_FOR_BUILD=ccache /Xcode3/usr/bin/gcc-4.0 -mmacosx-version-min=10.4
CXX_FOR_BUILD=ccache /Xcode3/usr/bin/g++-4.0 -mmacosx-version-min=10.4
--with-android-ndk=/Users/tml/android-ndk-r7b
--with-android-sdk=/Users/tml/android-sdk-macosx
--build=x86_64-apple-darwin11
--disable-zenity
--enable-werror
--with-distro=LibreOfficeAndroid
--with-external-tar=/Volumes/ooo/git/master/src
--disable-python
--without-helppack-integration
--without-myspell-dicts
--with-java

And here is an autogen.lastrun for Android when cross-compiling from Linux:

CC_FOR_BUILD=ccache gcc
CXX_FOR_BUILD=ccache g++
--with-android-ndk=/home/tml/android-ndk-r7b
--with-android-sdk=/home/tml/android-sdk-linux_x86
--with-ant-home=/opt/apache-ant-1.8.2
--build=x86_64-unknown-linux-gnu
--disable-zenity
--with-distro=LibreOfficeAndroid
--with-external-tar=/mnt/hemulen/ooo/git/master/src
--disable-python
--with-num-cpus=1
--with-max-jobs=1
--without-helppack-integration
--without-myspell-dicts

There is no interactive end-user "app" you could run yet that would
use LibreOffice code, but you can build some non-interactive unit
tests and run them on the emulator (or, presumably, on a device,
although that hasn't been tested as nobody with an actual Android
device has worked on it yet...)  The simple unit tests will succeed,
the complex one still fails.

These unit tests *are* proper "apps" from Android'd point of view, but
they don't have any GUI and thus don't take part in the normal Android
message passing and Android thinks they are stuck and offers to kill
them...

The activity used for these apps is in android/Bootstrap. See
README.Android.

To build the complex unit test (for Calc functionality; invokes the
"ucalc" unit test code from sc) source the environment (. Env.Host.sh)
and cd to android/qa/sc and run a "make". The Makefile here is
completely manually written, this stuff is so experimental it doesn't
make sense yet to try to integrate with the normal gbuild
mechanism.

Then to run the unit test, do "make install" followed by "make
run". You most likely want to have an "adb logcat" running in another
window, and you probably also want to have set the stdout and stderr
of app processes to be redirected to logcat ("adb shell stop; adb
shell setprop log.redirect-stdio true; adb shell start").

To debug, do manually what "make run" would do, adding args "-e
lo-main-delay 20" to the command line, and when the app has started,
run ndk-gdb. Unfortunately the gdb in NDK r7 is broken, use the one in
the NDK build with newer versions of gcc and gdb from
http://code.google.com/p/mingw-and-ndk/ instead.

Running strace on the unit test in progress is often useful to find
out what is going wrong. Pass something like -e lo-strace '-tt -f -e
trace=file,process,network -o /system/sc/strace.out' to the am start
command line.


PowerPC Mac OS X
----------------

Cross-compiling for PowerPC Mac OS X from Intel Mac OS X will probably
be easy. The APIs available should after all be closely identical to
those on Intel Mac OS X, and LibreOffice builds fine natively on
PowerPC Mac already. Only a little experimenting has been done with
it. An autogen.lastrun looks like this:

CC=ccache /Xcode3/usr/bin/gcc-4.0 -arch ppc
CXX=ccache /Xcode3/usr/bin/g++-4.0 -arch ppc
CC_FOR_BUILD=ccache /Xcode3/usr/bin/gcc-4.0
CXX_FOR_BUILD=ccache /Xcode3/usr/bin/g++-4.0
--build=i386-apple-darwin10.7.0
--host=powerpc-apple-darwin10
--disable-mozilla
--disable-build-mozilla
--with-external-tar=/Volumes/ooo/git/master/src