Test repository to check push and ssh key
Find a file
2011-12-27 00:31:47 +01:00
accessibility fix gbuildified accessibilty on windows 2011-12-24 10:32:03 -05:00
afms
android Add comment about how to use the lo-strace "extra" (option) 2011-12-22 15:45:33 +02:00
animations Link most libs and executables with gb_STDLIBS as presumably is intended 2011-12-20 01:12:23 +02:00
apache-commons
apple_remote
autodoc gcc-trunk: fix error: unable to find string literal operator 'operator"" FOO' 2011-12-16 21:20:08 +01:00
avmedia "*.*" is not "all files" (bnc#738021) 2011-12-22 19:32:53 +01:00
basctl String->OUString 2011-12-20 14:12:33 -05:00
basebmp unusedcode: remove various unused classes 2011-12-22 15:33:50 +01:00
basegfx unusedcode: remove various unused classes 2011-12-22 15:33:50 +01:00
basic tweak for pre language-defect #77 2011-12-21 13:44:52 +00:00
bean Link most libs and executables with gb_STDLIBS as presumably is intended 2011-12-20 01:12:23 +02:00
beanshell
berkeleydb
bin lo-pack-sources: do not duplicate the generated files in the archive dir 2011-12-19 18:06:11 +01:00
binaryurp Link most libs and executables with gb_STDLIBS as presumably is intended 2011-12-20 01:12:23 +02:00
boost
bridges only use posix_fallocate() if it's actually available 2011-12-21 16:17:45 +01:00
cairo Abandon attempt to use the debug CRT in a dbgutil build 2011-12-20 18:08:08 +02:00
canvas unusedcode: remove various unused classes 2011-12-22 15:33:50 +01:00
chart2 Remove unused header 2011-12-25 00:16:31 +01:00
cli_ure
codemaker callcatcher: remove unused typeToPrefix 2011-12-22 23:45:16 +00:00
comphelper remove some unused code 2011-12-22 10:46:58 +00:00
configmgr Fix for fdo43460 Part VIII getLength() to isEmpty() 2011-12-17 10:05:35 +04:00
connectivity clean-up remnant obsolete CALL_CDECL 2011-12-24 21:42:09 -06:00
cosv
cppcanvas Revert "callcatcher: Remove unused code" 2011-12-21 06:46:56 -05:00
cppu OSL_ASSERT -> assert 2011-12-23 18:56:18 +01:00
cppuhelper Fix for fdo43460 Part X getLength() to isEmpty() 2011-12-17 17:15:53 +04:00
cppunit
cpputools Fix for fdo43460 Part X getLength() to isEmpty() 2011-12-17 17:15:53 +04:00
crashrep
cross_toolset/prj
ct2n
cui "*.*" is not "all files" (bnc#738021) 2011-12-22 19:32:53 +01:00
curl Code modules no longer depend on stlport. 2011-12-16 17:45:10 +01:00
dbaccess missing icons in Index Design dialog fdo#38435 2011-12-26 22:38:05 +01:00
default_images use the same dir structure for images as sc and sw 2011-12-22 13:24:48 +01:00
desktop WaE: hInstance arg unused under mingw32 2011-12-21 15:55:43 +00:00
distro-configs remove obsolete (OxygenOffice-style) Lightproof integration 2011-12-18 19:23:24 +01:00
dmake
drawinglayer Fix for fdo43460 Part XIV getLength() to isEmpty() 2011-12-23 22:04:44 +04:00
dtrans Fix for fdo43460 Part XIV getLength() to isEmpty() 2011-12-23 22:04:44 +04:00
editeng resurrect autocorrection 2011-12-27 00:32:52 +04:00
embeddedobj Fix for fdo43460 Part XV getLength() to isEmpty() 2011-12-22 14:26:46 +00:00
embedserv
epm
eventattacher Link most libs and executables with gb_STDLIBS as presumably is intended 2011-12-20 01:12:23 +02:00
expat
extensions Fix for fdo43460 Part XVI getLength() to isEmpty() 2011-12-23 09:36:43 +01:00
external
extras
fileaccess Fix for fdo43460 Part XVII getLength() to isEmpty() 2011-12-26 14:05:06 +04:00
filter Fix for fdo43460 Part XVII getLength() to isEmpty() 2011-12-26 14:05:06 +04:00
fontconfig Mark fontconfig as depending on expat 2011-12-16 08:42:21 +02:00
forms Removed extra semicolons 2011-12-15 16:38:50 +00:00
formula Fix for fdo43460 Part XIX getLength() to isEmpty() 2011-12-26 14:26:08 +04:00
fpicker Fix for fdo43460 Part XIX getLength() to isEmpty() 2011-12-26 14:26:08 +04:00
framework Remove HelpAgentWindow 2011-12-21 22:34:54 -05:00
freetype
gdk-pixbuf
gettext
git-hooks
glib
graphite
guw
hsqldb
hunspell
hwpfilter
hyphen Recover fix for fdo#43931 2011-12-22 23:45:16 +00:00
i18npool point directly to http://www.validome.org/xml/ 2011-12-22 18:30:28 +01:00
i18nutil callcatcher: remove some unused code 2011-12-21 09:30:20 +00:00
icc
icu Abandon attempt to use the debug CRT in a dbgutil build 2011-12-20 18:08:08 +02:00
idl inheriting from ByteString is kind of weird 2011-12-22 09:07:47 +00:00
idlc catch exception by constant reference 2011-12-15 13:52:23 +09:00
instsetoo_native add version suffix (beta1) to about dialog 2011-12-16 14:29:13 +01:00
io catch exception by constant reference 2011-12-15 13:52:23 +09:00
javaunohelper catch exception by constant reference 2011-12-15 13:52:23 +09:00
jfreereport
jpeg
jurt
jvmaccess catch exception by constant reference 2011-12-15 13:52:23 +09:00
jvmfwk gcc-trunk: fix error: unable to find string literal operator 'operator"" FOO' 2011-12-16 21:20:08 +01:00
l10ntools reduce noise from FCFGMerge tool 2011-12-23 11:27:39 -06:00
languagetool
libcdr
libcmis
libcroco
libexttextcat
libgsf
libpng
librsvg
libvisio
libwpd
libwpg
libwps
libxml2
libxmlsec
libxslt
lingucomponent make this Makefile the same as all the others 2011-12-21 10:22:14 +00:00
linguistic ByteString->rtl::OString 2011-12-22 09:07:47 +00:00
lotuswordpro Removed extra semicolons 2011-12-15 16:38:50 +00:00
lpsolve
lucene
m4/mac
MathMLDTD
mdds
Mesa
migrationanalysis
more_fonts . is not a valid TARFILE_ROOTDIR 2011-12-14 15:11:31 +01:00
moz
mysqlc catch exception by constant reference 2011-12-20 12:07:50 +09:00
mysqlcppconn
mythes update delivering the correct version 2011-12-21 15:20:03 +00:00
neon
nlpsolver dos2unix 2011-12-14 16:04:04 +01:00
np_sdk
nss
o3tl Link most libs and executables with gb_STDLIBS as presumably is intended 2011-12-20 01:12:23 +02:00
odk "*.*" is not "all files" (bnc#738021) 2011-12-22 19:32:53 +01:00
offapi Revert "minor idl fixes" - no explicit license statement yet. 2011-12-20 17:46:59 +00:00
officecfg fdo#32936: Remove Tahoma from the Hebrew font list (except the UI list) 2011-12-25 22:27:02 +02:00
ooo_custom_images use the same dir structure for images as sc and sw 2011-12-22 13:24:48 +01:00
oovbaapi
oox unusedcode: oox: remove some unused code 2011-12-22 15:33:49 +01:00
openssl
package catch exception by constant reference 2011-12-21 21:57:54 +09:00
packimages
padmin catch exception by constant reference 2011-12-21 21:57:54 +09:00
pango
postgresql Introduce optional krb5&gssapi support for internal PostgreSQL 2011-12-15 18:40:59 +01:00
postprocess move UnoControls to tail_build 2011-12-25 20:39:49 +01:00
psprint_config
python Abandon attempt to use the debug CRT in a dbgutil build 2011-12-20 18:08:08 +02:00
pyuno catch exception by constant reference 2011-12-21 21:57:54 +09:00
qadevOOo Revert "gb_Jar_add_packagefiles only takes 2 args" 2011-12-23 17:39:52 +01:00
rdbmaker catch exception by constant reference 2011-12-24 01:55:56 +09:00
readlicense_oo
redland
regexp
registry Additional fix for EasyHack FDO43058, remove extra semicolons 2011-12-15 18:48:41 +00:00
remotebridges catch exception by constant reference 2011-12-24 01:55:56 +09:00
reportbuilder
reportdesign catch exception by constant reference 2011-12-24 01:55:56 +09:00
rhino
ridljar
rsc
sal Initial untested implementation of dirent style functions for the .apk 2011-12-22 15:45:34 +02:00
salhelper salhelper: s/hack/gb_Library_set_soversion_script/ 2011-12-15 22:14:27 +01:00
sane
sax catch exception by constant reference 2011-12-24 01:55:56 +09:00
saxon
sc missing pointer check in new multiline input code, fdo#43856 2011-12-26 15:18:45 +01:00
scaddins Link most libs and executables with gb_STDLIBS as presumably is intended 2011-12-20 01:12:23 +02:00
sccomp
scp2 The packaging was missing uno_cppuhelpergcc33.dll on MinGW. 2011-12-22 18:39:48 +01:00
scripting catch exception by constant reference 2011-12-25 15:09:58 +09:00
sd catch exception by constant reference 2011-12-25 15:09:58 +09:00
sdext catch exception by constant reference 2011-12-26 03:38:50 +09:00
setup_native remove obsolete (OxygenOffice-style) Lightproof integration 2011-12-18 19:23:24 +01:00
sfx2 catch exception by constant reference 2011-12-26 03:38:50 +09:00
shell catch exception by constant reference 2011-12-26 03:38:50 +09:00
slideshow Fix slideshow text animations - fdo#43837 2011-12-22 23:52:15 +01:00
smoketest
smoketestoo_native
solenv remove apparentely accidental addition of a linux binary module for make 2011-12-26 12:51:40 -06:00
soltools catch exception by constant reference 2011-12-26 03:38:50 +09:00
sot catch exception by constant reference 2011-12-26 03:38:50 +09:00
splitbuild
starmath catch exception by constant reference 2011-12-26 03:38:50 +09:00
stax
stlport
stoc msvc 2008 express won't link without explicit salhelper 2011-12-16 12:31:11 +00:00
store osl_unmapFile can't work for files bundled inside the .apk on Android 2011-12-21 14:08:48 +02:00
svl recognize arbitrary y-m-d format for editing as ISO 8601 yyyy-mm-dd 2011-12-22 19:04:30 +01:00
svtools Remove unneeded tests before delete 2011-12-25 00:16:31 +01:00
svx SV_DECL_VARARR->std::vector 2011-12-23 14:52:09 -05:00
sw Remove an unnecessary full stop 2011-12-27 00:11:45 +02:00
swext
sysui avoid the hardcoded 3.4 version 2011-12-20 19:47:58 +01:00
tail_build psprint_config moved to tail_build, its dep must be added to tail_build's 2011-12-24 20:12:23 -06:00
test
testtools Removed extra semicolons 2011-12-15 16:38:50 +00:00
tomcat
toolkit
tools Revert "callcatcher: Remove unused code" 2011-12-22 20:29:18 -05:00
twain Add TWAIN License text 2011-12-20 01:12:24 +02:00
ucb Remove nonsense line (causing debug-mode glibc to report an error). 2011-12-16 15:00:12 +01:00
ucbhelper Removed extra semicolons 2011-12-15 16:38:50 +00:00
udkapi Revert "minor idl fixes" - no explicit license statement yet. 2011-12-20 17:46:59 +00:00
udm
unixODBC
UnoControls gbuildize UnoControls 2011-12-25 20:37:10 +01:00
unodevtools
unoil
unotest Use / as SRC_ROOT and OUTDIR_FOR_BUILD on Android 2011-12-19 01:28:02 +02:00
unotools callcatcher: remove some unused code 2011-12-21 09:30:20 +00:00
unoxml unordf: tweak SPARQL unit test: 2011-12-20 18:31:57 +01:00
ure gbuildize ure 2011-12-26 17:40:26 +01:00
uui
vbahelper SfxObjectShell may not have a medium 2011-12-21 09:30:18 +00:00
vcl fix assertion error in GtkFolderPicker during recovery dialog 2011-12-26 15:18:45 +01:00
vigra
wizards fix syntactic error 2011-12-16 06:53:23 +01:00
writerfilter Related: fdo#43380 fix parsing of the \cf RTF token 2011-12-27 00:00:33 +01:00
writerperfect Some cppcheck cleaning 2011-12-25 13:58:55 +01:00
x11_extensions
xmerge
xml2cmp Removed extra semicolons 2011-12-15 16:38:50 +00:00
xmlhelp
xmloff fdo#44082: fix hyphenation attributes: 2011-12-22 23:57:45 +01:00
xmlreader osl_unmapFile can't work for files bundled inside the .apk on Android 2011-12-21 14:08:48 +02:00
xmlscript
xmlsecurity gcc-trunk: fix error: unable to find string literal operator 'operator"" FOO' 2011-12-16 21:20:08 +01:00
xpdf
xsltml
zlib
.gitattributes
.gitignore prep work to eliminated Env.*.sh, introduce config_{host,build}.mk 2011-12-24 21:42:08 -06:00
.src_root
autogen.sh
bootstrap prep work to eliminated Env.*.sh, introduce config_{host,build}.mk 2011-12-24 21:42:08 -06:00
build_env.in
config.guess
config.sub
config_host.mk.in migrate most SYSTEM_* config from set_soenv.in to config_host.mk.in 2011-12-25 00:11:21 -06:00
configure.in do not export SUNTEMPLATE_LANG. Not used anywhere 2011-12-24 21:42:09 -06:00
COPYING
COPYING.LGPL
COPYING.MPL
download prep work to eliminated Env.*.sh, introduce config_{host,build}.mk 2011-12-24 21:42:08 -06:00
g
install-sh
Library_merged.mk
Makefile
Module_tail_build.mk move UnoControls to tail_build 2011-12-25 20:39:49 +01:00
ooo.lst.in bump hyphen to 2.8.3 2011-12-22 10:47:26 +00:00
oowintool
post_download.in
README.Android
README.cross Add autogen.lastrun sample for cross-compiling to Android from Mac OS X 2011-12-15 23:56:52 +02:00
Repository.mk gbuildize UnoControls 2011-12-25 20:37:10 +01:00
RepositoryExternal.mk register hunspell as static library 2011-12-27 00:31:47 +01:00
RepositoryFixes.mk Repository: fix Windows name for internal libexttextcat 2011-12-24 16:10:44 +01:00
RepositoryModule_ooo.mk gbuildize ure 2011-12-26 17:40:26 +01:00
set_soenv.in migrate most SYSTEM_* config from set_soenv.in to config_host.mk.in 2011-12-25 00:11:21 -06:00
TEMPLATE.SOURCECODE.HEADER
unusedcode.easy callcatcher: remove unused typeToPrefix 2011-12-22 23:45:16 +00:00

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

Notes on cross-compiling LibreOffice, originally written by Tor
Lillqvist <tlillqvist@novell.com> <tml@iki.fi> in May, 2011, for later
history see git log.

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

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 and done mostly in my own 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, some more details might be needed. 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). But as
far as I know, 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 I have not attempted to try to keep it working;
in fact I 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.

In my opinion, 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. Personally I use 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. What I have noticed of it seems a bit randomish, with
copy-pasting having been preferred to factoring out differences.

Most of the configuration settings are maintained in the LibreOfficeMinGW
distro-config, 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 LibreOfficeMinGW distro 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_OOO350m1_Win_x86_install-arc_en-US.tar.gz
$ cd LibO-Dev_OOO350m1_Win_x86_install-arc_en-US/LibO-dev\ 3.5/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_OOO350m1_Win_x86_install-arc_en-US\LibO-dev 3.5\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_OOO350m1_Win_x86_install-arc_en-US/LibO-dev 3.5' <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 I think

- 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) to design a
touch GUI for LibreOffice, so the work on cross-compiling LibreOffice
for iOS is extremely experimental, and of course partly pointless;)
But it is interesting and fun nonetheless.

Obviously it will make sense to build only a part of LibreOffice's
code for iOS. Most likely all GUI-oriented code should be left out,
and some iOS app 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. As I said, this is
highly experimental and just in its baby steps phase.

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, so that is where I have been doing it.

Here is my 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-num-cpus=1
--with-max-jobs=1
--without-help
--without-helppack-integration
--without-myspell-dicts

And here for the iOS simulator:
CXX=ccache /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/g++ -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk
CC=ccache /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc -arch i386 -isysroot /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-num-cpus=1
--with-max-jobs=1
--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>

Android
-------

I don't know much about Android, but from a technical point of view it
is a kind of Linux, of course. As far as I know it is allowed for an
Android app to use shared objects, but if it isn't, then just the same
approach as used on iOS will need to be used.

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

I have done my Android cross-compilation work 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 my autogen.lastrun for Android, when cross-compiling from Mac OS X:
SYSBASE=/Users/tml/android-ndk-r7/platforms/android-9/arch-arm
CC=ccache /Users/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86/bin/arm-linux-androideabi-gcc -march=armv7-a -mfloat-abi=softfp -mthumb -mfpu=neon -Wl,--fix-cortex-a8 --sysroot /Users/tml/android-ndk-r7/platforms/android-9/arch-arm -L/Users/tml/android-ndk-r7/sources/cxx-stl/gnu-libstdc++/libs/armeabi-v7a
CXX=ccache /Users/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86/bin/arm-linux-androideabi-g++ -march=armv7-a -mfloat-abi=softfp -mthumb -mfpu=neon -Wl,--fix-cortex-a8 --sysroot /Users/tml/android-ndk-r7/platforms/android-9/arch-arm -I /Users/tml/android-ndk-r7/sources/cxx-stl/gnu-libstdc++/include -I/Users/tml/android-ndk-r7/sources/cxx-stl/gnu-libstdc++/libs/armeabi-v7a/include -L/Users/tml/android-ndk-r7/sources/cxx-stl/gnu-libstdc++/libs/armeabi-v7a -fexceptions -frtti
AR=/Users/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86/bin/arm-linux-androideabi-ar
NM=/Users/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86/bin/arm-linux-androideabi-nm
OBJDUMP=/Users/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86/bin/arm-linux-androideabi-objdump
RANLIB=/Users/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86/bin/arm-linux-androideabi-ranlib
STRIP=/Users/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86/bin/arm-linux-androideabi-strip
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
--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 the autogen.lastrun for Android when cross-compiling from Linux:
SYSBASE=/home/tml/android-ndk-r7/platforms/android-9/arch-arm
CC=ccache /home/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc -march=armv7-a -mfloat-abi=softfp -mthumb -mfpu=neon -Wl,--fix-cortex-a8 --sysroot /home/tml/android-ndk-r7/platforms/android-9/arch-arm -L/home/tml/android-ndk-r7/sources/cxx-stl/gnu-libstdc++/libs/armeabi-v7a
CXX=ccache /home/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-g++ -march=armv7-a -mfloat-abi=softfp -mthumb -mfpu=neon -Wl,--fix-cortex-a8 --sysroot /home/tml/android-ndk-r7/platforms/android-9/arch-arm -I /home/tml/android-ndk-r7/sources/cxx-stl/gnu-libstdc++/include -I/home/tml/android-ndk-r7/sources/cxx-stl/gnu-libstdc++/libs/armeabi-v7a/include -L/home/tml/android-ndk-r7/sources/cxx-stl/gnu-libstdc++/libs/armeabi-v7a -fexceptions -frtti
AR=/home/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-ar
NM=/home/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-nm
OBJDUMP=/home/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-objdump
RANLIB=/home/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-ranlib
STRIP=/home/tml/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-strip
CC_FOR_BUILD=ccache gcc
CXX_FOR_BUILD=ccache g++
--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


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. I have just started experimenting with it. My
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



That's all, thank you, and have a nice day. People with commit access,
feel free to edit this document, and add yourself below. Sorry for
writing now initially from such a personal point of view.

--Tor Lillqvist <tlillqvist@novell.com>, <tml@iki.fi>