comint-run can't send signals to subjob

[Robert Andersson]

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In GNU Emacs 21.1.1 (sparc-sun-solaris2.8, X toolkit)
 of 2001-10-22 on mozart
configured using `configure  --with-xpm --with-jpeg --with-tiff=/usr/local 
--with-gif --with-png'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: iso_8859_1
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

when running a programme in comint-run it will not accept any signals
from this buffer, though it will accept something like

     pkill -INT -U $USER programme

from a external shell. note though that we have recently upgraded our
system from sun os 5.8 to 5.9 without recompiling emacs. this can not
be done because of another compile bug:

In file included from /usr/openwin/include/X11/Xos.h:79,
                 from xfaces.c:279:
/usr/include/strings.h:25: conflicting types for `memmove'
/usr/include/iso/string_iso.h:62: previous declaration of `memmove'
/usr/include/strings.h:26: parse error before `0'
/usr/include/strings.h:26: warning: conflicting types for built-in function 
`memset'
gcc -c  -Demacs -DHAVE_CONFIG_H -DUSE_LUCID  -I. 
-I/usr/local/src/installed/emacs-21.1/src       -I/usr/openwin/include    
-I/usr/dt/include  -O3 -mcpu=v8 -mtune=v9 xfns.c
In file included from /usr/openwin/include/X11/Xos.h:79,
                 from xfns.c:74:
/usr/include/strings.h:25: conflicting types for `memmove'
/usr/include/iso/string_iso.h:62: previous declaration of `memmove'
/usr/include/strings.h:26: parse error before `0'
/usr/include/strings.h:26: warning: conflicting types for built-in function 
`memset'
gmake[1]: *** [xfaces.o] Error 1
gmake[1]: *** Waiting for unfinished jobs....
gmake[1]: *** [xfns.o] Error 1
gmake[1]: Leaving directory `/usr/local/src/installed/emacs-21.1/src'
gmake: *** [src] Error 2

Recent input:
<escape> x c o m i n <tab> r u <tab> <return> s i c 
s t s u <backspace> <backspace> u s <return> C-c C-c 
<return> <escape> x c o m i n <tab> r u <tab> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> r e 
o p <tab> <backspace> <backspace> p o <tab> t <backspace> 
r <tab> <return>

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