AIX build: xlc confusion

[Jeffrey A Law]

  In message <199709181848.LAA07960@telaviv.tmai.com>you write:
  > 
  > When building on AIX, without explicit setting of envirnment
  > variable CC=cc, the configure script picks (or _may_ pick) 'xlc'
  > which cause a failure when linking cccp.
  > 
  > This happens since in  egcs-970917/gcc/Makefile
  >   USE_ALLOCA= ` case "${CC}" in "${OLDCC}") echo "${ALLOCA}" ;; esac `
  > becomes:
  >   USE_ALLOCA= ` case "xlc" in "cc") echo alloca.o ;; esac `
  > which echos nothing.
BTW -- this problem should have been fixed a little while ago.

jeff