Re: init_buffer PWD fix

["Keiichiro Nagano" <knagano@sodan.org>]

At Mon, 22 Apr 2002 11:01:27 +0300 (IDT),
Eli Zaretskii wrote:
> Thanks for the explanation.  But I still don't see how this would cause a 
> specific failure in Emacs in some situation.  Can you describe such a 
> specific failure, complete with the commands to type outside and inside 
> Emacs, and with analysis of what happens inside init_buffer in that case?

For instance,

0. in bash shell...
1. gunzip and untar emacs-21.2.tar.gz and leim-21.2.tar.gz
2. cd to emacs-21.2/nt, and run ./configure.bat.  If you have MSVC,
   configure.bat detects it and configure to use MSVC for compiling
   Emacs.
3. type nmake.  After you have done temacs.exe and emacs.exe, You
   will get an error like this:

        "C:\home\tmp\emacs-21.2\leim/../src/obj-spd/i386/emacs.exe" -batch --no-init-file --no-site-file --multibyte -l C:/home/tmp/emacs-21.2/leim/../lisp/international/titdic-cnv  --eval "(batch-titdic-convert t)"  -dir quail ./CXTERM-DIC

Warning: arch-dependent data dir (c:/emacs/bin/) does not exist.
Warning: arch-independent data dir (c:/emacs/etc/) does not exist.
Converting c:/home/tmp/emacs-21.2/nt/CXTERM-DIC to quail-package...
Opening input file: no such file or directory, c:/home/tmp/emacs-21.2/nt/CXTERM-DIC
NMAKE : fatal error U1077: '"C:\home\tmp\emacs-21.2\leim/../src/obj-spd/i386/emacs.exe"' : return code '0xffffffff'
Stop.
NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual Studio\VC98\bin\nmake.exe"' : return code '0x2'
Stop.

Why c:/home/tmp/emacs-21.2/nt/CXTERM-DIC?  CXTERM-DIC is at
c:/home/tmp/emacs-21.2/leim.  Because chdir ../leim is done in
makefile, and Emacs uses wrong PWD c:/home/tmp/emacs-21.2/nt to open
./CXTERM-DIC.  With the patch I post, this error will never happen.

Same problems happen quite often with Emacs Lisp products, for
example, T-gnus
(http://lists.airs.net/semi-gnus/archive/200101/msg00057.html if you
can read Japanese), whose 'Makefile's do chdir before try to invoke
Emacs to byte-compile '*.el's,

-- 
Keiichiro Nagano