I just downloaded the source (zcs-3.0.M1_21) on my MacOS X 10.4 system and noticed that there were no build instructions. At this point I have compiled all the java source and attempted to build the C/C++ code in the ZimbraNative directory, but failed with errors.
Just to document what I did, from the source base directory:
ant -f Ajax/build.xml
ant -f ZimbraCharset/build.xml
ant -f ZimbraServer/build.xml
ant -f ZimbraWebClient/build.xml
Are there any instructions? What is the minimum I need to build to get a working install?