Fresh installation is recommended.
Mac: use Cocoa 32 bit
Extract in Applications directory, for example:
/Applications/IDE/eclipse-jee-galileo-SR1-macosx-cocoa.tar.gz
Drag /Applications/IDE/eclipse/Eclipse.app to your dock to make a shortcut.
2) Download GWT SDK:
http://google-web-toolkit.googlecode.com/files/gwt-2.0.0-rc2.zip
Extract the zip in any location, example:
/opt/gwt/gwt-2.0.0-rc2.zip
/opt/gwt/gwt-2.0.0-rc2/gwt-dev.jar
Mac: use Cocoa 32 bit
Extract in Applications directory, for example:
/Applications/IDE/eclipse-jee-galileo-SR1-macosx-cocoa.tar.gz
Drag /Applications/IDE/eclipse/Eclipse.app to your dock to make a shortcut.
2) Download GWT SDK:
http://google-web-toolkit.googlecode.com/files/gwt-2.0.0-rc2.zip
Extract the zip in any location, example:
/opt/gwt/gwt-2.0.0-rc2.zip
/opt/gwt/gwt-2.0.0-rc2/gwt-dev.jar
3) Install Eclipse GWT Plugin:
download and extract into Eclipse dropins directory
http://dl.google.com/eclipse/plugin/3.5/zips/gpe-e35-latest.zip
You should have this, or newer:
/Applications/IDE/eclipse/dropins/eclipse/features/com.google.gdt.eclipse.suite.e35.feature_1.1.2.v200910131704
download and extract into Eclipse dropins directory
http://dl.google.com/eclipse/plugin/3.5/zips/gpe-e35-latest.zip
You should have this, or newer:
/Applications/IDE/eclipse/dropins/eclipse/features/com.google.gdt.eclipse.suite.e35.feature_1.1.2.v200910131704
Restart Eclipse, you should see the plugin.
If for any reason you don't see these 3 icons, delete Eclipse installation, and extract all again from the downloaded archives, take about 1 minute.
Following steps are optional depending on what you are using:
4) Install Eclipse SVN plugin: Menu.. Help.. Install new software...
http://subclipse.tigris.org/update_1.6.x
http://subclipse.tigris.org/update_1.6.x
You should be able to browse any SVN repositories by selecting..
and typing SVN in the search, then selecting "SVN repositories"
5) Install Eclipse Maven plugin: Menu.. Help.. Install New Software ...
http://m2eclipse.sonatype.org/update/
Please post comments and help tips