testing consistency

[Jeffrey A Law]

  In message < 199709190442.VAA17154@kankakee.wrs.com >you write:
  > I think it is reasonable to consider comparing as part of the checking
  > process.
I strongly disagree.  The GCC installation instructions have always said
to 3-stage and compare the compiler -- by using a series of make targets ie.

make LANGUAGES=c
make stage1
make CC="stage1/xgcc -O2 -g -Bstage1" 
make stage2
etc etc


What we're doing is making that basic build simpler and less error
prone (how many remember when different CFLAGS were in the instructions
for the stage2 and stage3 build?)

  > Right now, make doesn't imply make check.  I can envision a
  > change in make, so that check is in fact implied.  make && make
  > install then has neat interesting semantics.
I'd recommend against that until we see how many people are actually
interested in sucking down and running the testsuite.

Jeff