[take 2] Re: configuration patch for host_exeext != ""

[Jeffrey A Law]

  In message <199902122321.RAA19303@modi.xraylith.wisc.edu>you write:
  > Sigh. I was afraid you wouldn't go for my hack. Here's my current setup.
  > Need to be careful in handling cross vs canadian cross builds.
  > 
  > The following changes make is possible to configure and build egcs target
  > libraries in all the 3 modes -- native, cross and canadian cross.
  > 
  > Few notes:
  >   - I'm using AC_EXEEXT, which AFAIK appeared in autoconf 2.13. I don't
  >     know what's in 2.12.1, nor can I find it, so don't know if the PREREQ
  >     change is needed or not.
  >   - When building target libraries, host takes on the value of the target
  >     system, and there is no reliable way to get the program extension, if
  >     any, when doing cross-builds. It works for native and canadian cross
  >     however. That's why we need to check for compiler name using both
  >     without extension and with one.
  >   - libstdc++/libio changes are more fragile, since I didn't/couldn't use
  >     AC_EXEEXT which does a bit more. DJGPP and other ports should add
  >     their own to the case statement.
  >   - The change is really 1-3 liner, and the rest is really reformatting. I
  >     don't like those tabs that make lines really really long.
  >   - Even with this, libobjc cannot be built when doing canadian cross,
  >     thanks to the need to build runtime-info.h. I'll send a separate patch
  >     for that later.
  >   
  > libio/libstdc++:
  > 
  > Fri Feb 12 16:37:45 1999  Mumit Khan  <khan@xraylith.wisc.edu>
  > 
  > 	* configure.in (EXEEXT): Define.
  > 	(compiler_name): Use.
  > 
  > libchill/libf2c/libobjc:
  > 
  > Fri Feb 12 16:37:45 1999  Mumit Khan  <khan@xraylith.wisc.edu>
  > 
  > 	* configure.in (AC_PREREQ): Update to 2.13.
  > 	(AC_EXEEXT): Call to find possible file extension.
  > 	(compiler_name): Use.
  > 	* configure: Regenerate.
THanks.  Installed!  Sorry for the delay

Jeff

ps.  I changed "-o" to "|| test" in a variety of places since apparently
-o is not portable?!?