Hi All, Further to the below mail from Peter Stephenson, this would give a broad overview of the changes to Zsh project during its migration onto Symbian OS. Let me know how can we move further on this activity. Symbian OS supports Zsh 1. Overview: The Open source Zsh was migrated onto Symbian OS using PIPS (PIPS is POSIX on Symbian OS) libraries, the Standard set of POSIX libraries on Symbian. None of the Zsh project defects have been fixed during this activity and all the changes are to support Zsh on Symbian OS. 2. Limitations: This section elaborates the features that were not supported due to the limitations in PIPS/Symbian. a. Signal related features are not supported - PIPS currently don?t support Signals, because of which features like stopping, terminating a process are not supported. Signals are being implemented and this can be supported soon. 3. Key modifications to open source Zsh: a. Make changes The build and the project specification files for Symbian reflect the .Makefile of Zsh project. The tools of Symbian will use these specifications to generate the binary. b. Source changes Most of the changes during the migration have been blocked under __SYMBIAN32__ which is defined by the tools. As Symbian doesn?t support two phase construction of a process, popen3() an API which creates a process with the image and gets three file descriptors corresponding to the stdio of the client process is used instead of fork() and exec (). Most of the changes done to Zsh project are specific to the usage of popen3 (). 4. Sourced from and version: http://linux.softpedia.com/get/Programming/Interpreters/Zsh-1183.shtml (4.2.6 version). Thanks, Karthik. Peter Stephenson 04/29/2008 03:41 PM To Karthikeyan.Balu@symbian.com cc Subject Re: Zsh migrated to Symbian OS - Contributing back details. Hi, Thanks for the note... we'd certainly be interested in integrating your changes back to zsh. This would have to be the latest development version (4.3) since there isn't any active development of older branches. As you no doubt know, most of the discussion about details goes on on the zsh-workers mailing list. We'd be happy to look at patches to allow compilation on Symbian. Putting appropriate #ifdef's in the code is probably the easy bit; setting up the configuration in the first place is perhaps more difficult. Are you using a cross-compiler? This probably makes things difficult, since zsh has to probe various bits of run-time behaviour when configure is run. We would probably need to look at other ways of providing the necessary information. Alternatively, I suppose we might be able to supply a library of pre-built configuration headers for special cases like this. Anyway, if you let the mailing list know the sort of changes you have we can start to think about the best way of integrating them. Regards, pws -- Peter Stephenson Software Engineer CSR PLC, Churchill House, Cambridge Business Park, Cowley Road Cambridge, CB4 0WZ, UK Tel: +44 (0)1223 692070 ********************************************************************** Symbian Software Ltd is a company registered in England and Wales with registered number 4190020 and registered office at 2-6 Boundary Row, Southwark, London, SE1 8HP, UK. This message is intended only for use by the named addressee and may contain privileged and/or confidential information. If you are not the named addressee you should not disseminate, copy or take any action in reliance on it. If you have received this message in error please notify postmaster@symbian.com and delete the message and any attachments accompanying it immediately. Neither Symbian nor any of its Affiliates accepts liability for any corruption, interception, amendment, tampering or viruses occurring to this message in transit or for any message sent by its employees which is not in compliance with Symbian corporate policy. **********************************************************************