Bill, This is getting ridiculous. I really appreciate your patience and expertise, but it seems that what is supposed to be there just isn't. Now I can run rebaseall from dash.exe but not as /bin/rebaseall, but as rebaseall. In addition rebaseall errors out saying it can't find 'lib'. I am also having to substitute mingw32 for mingw because there is no mingw in JTSDK.
A long time ago I set up and maintained a Slackware Linux mail server, so I am familiar with but by no means an expert with UNIX. Still, I appreciate the 'fork' explanation. I didn't know there was a difference between UNIX and Windows in how they share libraries. What to do? Since I have the MinGW Installation Manager I guess I could install everything it offers, but it may be installed in the wrong place to do any good. Thinking of our email exchanges it seems you expect a lot of utilities to be available and available in a particular place. Is it possible that something went missing during my initial package installation? Several months ago when I first installed JTSDK, it all just worked.....until it all of sudden didn't. Uninstalled and deleted the JTSDK directory, and started over. The problem didn't change. You've seen my list of installed packages. Did I miss something? Should I wipe it out and start over? Should I install all of MinGW? Fortunately the one thing I do have is plenty of HD space with a 1TB SSD and more than half empty. I really appreciate your time and advice _____________________________ Dan Malcolm CFI/II K4SHQ -----Original Message----- From: Bill Somerville [mailto:g4...@classdesign.com] Sent: Monday, March 06, 2017 5:54 AM To: wsjt-devel@lists.sourceforge.net Subject: Re: [wsjt-devel] Hamlib3 compile error On 06/03/2017 03:50, Dan Malcolm wrote: > Got that and installed it. MIngw-get still failed but a search found > the program under C:\JTSDK\mingw32\bin so I used the full path from > the JTSDK MYS prompt. That ran and seemed to install a few pages. > Closed all JTSDK windows and then found dash.exe right where you said > it would be. It opened a window and /bin/rebaseall gave me this error: > $ /bin/rebaseall > /bin/rebaseall: 207: find: not found > /bin/rebaseall: 207: grep: not found > /bin/rebaseall: 207: find: not found > /bin/rebaseall: 207: grep: not found Hi Dan, Hmmm, this may become a bit lengthy. Let me try and explain why rebaseall is needed. Unix like systems use a system call named fork() to create all new processes by exactly copying the memory content of the current process to make a new child process, this is fundamental to how shells run programs. Because msys is the MinGW (GNU gcc compilers on Windows) shell and is based on Unix principles it needs an emulation of fork() for Windows. Windows has a different way of creating processes with the CreateProcess[Ex]() system call which does something very different. One behaviour of Unix like systems is that in a forked child process any references shared libraries (like DLLs) are loaded at exactly the same virtual address in the new process as the old one. This is an oversimplification as Unix like systems really use a technique called position independent code but it amounts to the same thing. This means that code pre-compiled to call shared library routines will continue to work in the child process. In Windows this can go wrong as DLL code can appear at different addresses in different processes. The rebase action fixes up the msys and MinGW DLLs so that does not happen. So what to do? I suspect that you can install enough of the msys system to allow the rebseall command to work but it might take a few attempts. At least you have the mingw-get tool available now to install new packages. Try this from a JTSDK msys prompt: mingw-get install msys-base and if it works try the procedure to run rebaseall from a dash shell again. 73 Bill G4WJS. ---------------------------------------------------------------------------- -- Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
