mkoctfile: Problems sometimes during linking of text file

[John W. Eaton]

On 19-Apr-2000, Stephen Eglen <address@hidden> wrote:

| Hi,
| 
| Sometimes when using mkoctfile, I get the followng error during the
| final link stage (I've put the \ continuation lines in myself):
| 
| c++ -c -I/home/data6/stephen/include -I/home/data6/stephen/include \
| -I/home/data6/stephen/include/octave-2.0.16 -mieee-with-inexact \
| -fno-rtti -fno-exceptions -fno-implicit-templates -g -O2 -Wall \
|  sjevor_wrap.cc -o sjevor_wrap.o
| c++ -shared -Xlinker -expect_unresolved -Xlinker '*' \
| -o sjevor_wrap.oct sjevor.o sjevor_wrap.o
| /usr/ucb/ld:
| Can't create output file (Text file busy)
| collect2: ld returned 1 exit status
| 
| It looks to me that it may be a ld problem rather than anything to do
| with Octave.  This happens about one time in four of running the
| compilation; normally when I get it, if I recompile then it all works
| okay.  I was just wondering if anyone else got this, and if I can do
| anything about it.
| 
| By the way, I don't call mkoctfile directly, but use the matwrap perl
| script to do the hard work.  This is on DEC OSF/1.

I believe `text file busy' can happen on some systems when you try to
write to an executable file that is running at the time, so I don't
think this is really a problem with mkoctfile, but maybe it can be
avoided.  Does the following change to mkoctfile.in help (for 2.1.x,
but should also work for the 2.0.x sources)?  If not, I'm not sure
what else can be done.

jwe

Index: mkoctfile.in
===================================================================
RCS file: /usr/local/cvsroot/octave/mkoctfile.in,v
retrieving revision 1.18
diff -c -r1.18 mkoctfile.in
*** mkoctfile.in        2000/02/08 19:19:18     1.18
--- mkoctfile.in        2000/04/19 15:37:49
***************
*** 187,192 ****
--- 187,195 ----
    done
  fi
  
+ $dbg "rm -f $octfile"
+ rm -f $octfile
+ 
  # Link all the object files.
  
  $dbg $SH_LD $SH_LDFLAGS -o $octfile $objfiles $ldflags



-----------------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.che.wisc.edu/octave/octave.html
How to fund new projects:  http://www.che.wisc.edu/octave/funding.html
Subscription information:  http://www.che.wisc.edu/octave/archive.html
-----------------------------------------------------------------------