cc   -DIN_GCC      -DHAVE_CONFIG_H  -o cccp cccp.o cexp.o prefix.o \
   version.o obstack.o ` case "cc " in "cc") echo "alloca.o" ;; esac `
 undefined                       first referenced
  symbol                             in file
 alloca                              cccp.o
 ld fatal: Symbol referencing errors. No output written to cccp
 gmake: *** [cccp] Error 13

Bummer.

There is one solution and one workaround. The problem is in config/i386/x-sco5. Edit the line that looks like it reads "CC = cc" and remove the trailing space after the last lowercase c. After you've done this, you'll need to rerun configure so that it can rebuild all the Makefiles. If you look at the above compilation line more carefully you will see that there is an extra space and that is resulting in alloca.o not being linked into the resulting executable.

Alternately, you can just type "CC=/bin/cc make bootstrap" and not have to edit anything.
A patch to cure this was submitted to the GCC team on the day that GCC 2.8.0 was released.

robertlipe@usa.net