+This will result in an Qt library set for i386 and ppc applications.
+
+To build Qt with Tiger support run configure with:
+
+ CC=gcc-4.0 OBJC=gcc-4.0 CXX=g++-4.0 \
+ ./configure -opensource -silent -shared -release -universal -fast \
+ -sdk /Developer/SDKs/MacOSX10.4u.sdk \
+ -no-exceptions -no-webkit -no-qt3support -no-javascript-jit -no-dbus \
+ -nomake examples -nomake demos -nomake docs \
+ -nomake tools -no-framework \
+ -prefix /path/to/Qt4
+
+To build the libraries with 64bit architecture you have to replace the
+"-universal" option with "-arch x86_64". Note: you cannot build Qt with
+32bit and 64bit mixed architecture mode. (At least not with Qt4.6)
+And the build with 64bit has known problems - so it's not recommended.
+
+Furthermore Apples developer documentation states:
+"Although 64-bit executables make it easier for you to manage large
+data sets ..., the use of 64-bit executables may raise other issues.
+Therefore you should transition your software to a 64-bit executable
+format only when the 64-bit environment offers a compelling advantage
+for your specific purposes."
+
+
+2. [Needed only for developmental builds:] automake, version 1.10.1
+or higher (check with automake --version). Probably the easiest
+way to get this is to use MacPorts (from http://www.macports.org/)
+and install automake using
+
+ sudo port install automake
+
+
+3. [Needed only for developmental builds:] gettext version >= 0.18
+(check with gettext --version). If the installed version is
+insufficient the easiest way to obtain a later version is to use
+MacPorts (from http://www.macports.org/) and install gettext
+using:
+
+ sudo port install gettext
+
+
+4. pkg-config >= 0.9.0. Again, the simplest way is through MacPorts:
+
+ sudo port install pkgconfig
+
+
+5. To build with included spell checker (ASpell):
+The aspell library is GPL-licensed and can be downloaded from
+ftp://ftp.gnu.org/gnu/aspell or one of the mirrors.
+At the time of writing aspell-0.60.tar.gz is the current version.
+Unpack the tarball in the same directory where you placed the
+svn checkout or LyX tarball.
+
+BUILD INSTRUCTIONS
+
+In what follows, /path/to/LyX.app is the location where you want LyX
+to create the LyX binary. You should substitute something appropriate,
+like: ~/Desktop/LyX.app. Also, substitute the appropriate path to
+where you installed Qt for /path/to/Qt4 (as above).
+
+Dependent on the Qt-libraries you have and the build system you're using
+you have to tell configure the compiler and compiler options to use.
+If your Qt-libraries don't match your compiler defaults you may
+adjust some environment variables to do so.
+
+
+1. Environment
+
+(a) Qt-4.6 self compiled universal libs
+
+ Since MacOSX 10.6 the default is to compile 64bit applications.
+ We have to change the default if using that build system.
+
+ export CPPFLAGS="-arch i386"
+ export LDFLAGS="-arch i386"
+
+(b) Qt-4.6 libraries 64bit
+
+ You're at least on MacOSX 10.6 and don't have to change anything.
+ Note: Your LyX binary will run only on 10.6 64bit Intel machines.
+ Additionally you'll have to provide your Qt libraries somehow...
+ FIXME: actually this is a dream, 64bit LyX crashes on startup!
+
+(c) Qt-4.6 self compiled libraries with Tiger support
+
+ You have to choose the gcc4.0 compiler suite and the correct SDK:
+
+ export CC=gcc-4.0
+ export OBJC=gcc-4.0
+ export CXX=g++-4.0
+ export CPPFLAGS="-arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4"
+ export LDFLAGS="-arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4"
+
+(d) When working without pkgconfig or pkgconfig fails to detect Carbon and Appkit frameworks
+
+ Current pkgconfig from macports is able to detect the frameworks Qt4 is using.
+ The build of LyX succeeds because the frameworks are added automatically to the linker options.
+ If you need to add them yourself because of link errors, e. g.
+ lyx Undefined symbols: "_FSPathMakeRef"...
+ you have to verify the required frameworks with otool and add them to the LDFLAGS.
+
+ Check the output of
+ otool -L /path/to/QT4/lib/libQtGui.dylib
+ and look for lines with Frameworks.
+
+ Currently there are two different Qt4 builds available for download:
+ * with Tiger support it's with Carbon. You have to add
+ export LDFLAGS="$LDFLAGS -framework ApplicationServices -framework Carbon -framework AppKit"
+ * with Cocoa framework without Tiger support you have to add
+ export LDFLAGS="$LDFLAGS -framework ApplicationServices -framework Cocoa -framework AppKit"
+
+ Note: The latter is untested.
+
+(e) When working with the Qt4 frameworks provided by Nokia
+
+ We have to help again with some environment variables to make configure work.
+
+ In case pkgconfig is installed... disable it.
+ The Qt4 frameworks come without the required .pc files.
+
+ export PKG_CONFIG=""
+
+ The required compiler flags to compile a Qt4 application has to be provided.
+
+ export QT4_CORE_CFLAGS="-FQtCore"
+ export QT4_CORE_LIBS="-framework QtCore"
+ export QT4_FRONTEND_CFLAGS="-FQtGui"
+ export QT4_FRONTEND_LIBS="-framework QtGui"
+
+ Depending on the architecture and target os add the compiler flags:
+
+ - for default SDK
+ export CPPFLAGS="-arch i386"
+ export CPPFLAGS="$CPPFLAGS -I/Library/Frameworks/QtCore.framework/Headers"
+ export CPPFLAGS="$CPPFLAGS -I/Library/Frameworks/QtGui.framework/Headers"
+ export LDFLAGS="-arch i386 -framework ApplicationServices -framework Carbon -framework AppKit"
+
+ - or to force 10.5 SDK
+
+ export CPPFLAGS="-arch i386 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.4"
+ export CPPFLAGS="$CPPFLAGS -I/Developer/SDKs/MacOSX10.5.sdk/Library/Frameworks/QtCore.framework/Headers"
+ export CPPFLAGS="$CPPFLAGS -I/Developer/SDKs/MacOSX10.5.sdk/Library/Frameworks/QtGui.framework/Headers"
+ export LDFLAGS="-arch i386 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.4"
+ export LDFLAGS="$LDFLAGS -framework ApplicationServices -framework Carbon -framework AppKit"
+
+ Note: it may depend on Qt4 frameworks what actually works.
+ The 4.6.2 frameworks has to be used with 10.5 SDK.
+
+
+2. Configure and build
+
+(a) Official Releases (compile from tar-ball)
+
+ cd to the top of the LyX source hierarchy, and enter:
+
+ ./configure \
+ --with-version-suffix=-2.0 \
+ --with-libiconv-prefix=/usr \
+ --with-x=no \
+ --prefix=/path/to/LyX.app \
+ --with-qt4-dir=/path/to/Qt4
+ make
+ make install-strip
+
+(Note that the --with-version-suffix=-2.0 option will result in LyX's
+user's directory being located at ~/Library/Application Support/LyX-2.0)
+
+
+(b) Developmental Versions (svn checkouts)
+
+Building LyX from developmental sources requires a few more steps.
+Instead of the instructions above, do the following:
+
+ cd to the top of the LyX source hierarchy, and enter:
+
+ ./autogen.sh
+ ./configure \
+ --with-version-suffix=-2.0 \
+ --with-libiconv-prefix=/usr \
+ --with-x=no \
+ --disable-stdlib-debug \
+ --prefix=/path/to/LyX.app \
+ --with-qt4-dir=/path/to/Qt4
+ make
+ make install-strip
+
+Note that by default svn versions use some extra debugging code that
+somewhat slows LyX down. If it is a real problem, you can pass the
+option --enable-build-type=release to configure.
+
+
+(c) Distribution build
+
+The distribution package build of LyX is supported by the shell script
+"LyX-Mac-binary-release.sh" in the development sub-directory of the
+LyX source hierarchy.
+
+Please read the script if you're about to make a distributable disk image.
+
+To use it, cd to the top of the LyX source hierarchy, and enter:
+
+ sh development/LyX-Mac-binary-release.sh --with-qt4-dir=/path/to/Qt4
+
+This script automates all steps of the build process.
+It detects the sources for Qt4, Aspell and Hunspell when placed in a
+sibling directory and builds them ready to use for LyX packaging.
+These libraries are then bundled with the LyX application as private
+frameworks. Therefore the Qt4 libraries are build as frameworks.
+Per default the resulting LyX application is build for ppc and i386
+to be usable on all systems from Tiger upwards.
+
+
+(d) Developmental Versions (svn checkouts and Qt4 frameworks)
+
+Instead of the instructions in (b), do the following:
+
+ cd to the top of the LyX source hierarchy, and enter:
+
+ ./autogen.sh
+ ./configure \
+ --with-version-suffix=-2.0 \
+ --with-libiconv-prefix=/usr \
+ --with-x=no \
+ --disable-stdlib-debug \
+ --prefix=/path/to/LyX.app
+ make
+ make install-strip
+
+ Note: The produced binary depends on the frameworks in location
+ /Library/Frameworks. These frameworks have to match the frameworks
+ you used on build.
+
+
+3. Disclaimer