You can run the compiler GCC without recompiling, even if you
install the distribution in an alternate location, by first setting the
environment variable GCC_EXEC_PREFIX. This variable specifies
where to find the executables, libraries, and data files used by the
compiler. Its value will be different depending on which set of
binaries you need to run. For example, if you install the tape
distribution under `/local' (instead of the default
`/usr/cygnus'), and you wish to run GCC as a native compiler,
you could set GCC_EXEC_PREFIX as follows.
(Note: The sample shows a GCC_EXEC_PREFIX which is split
across two lines only to fit on the printed page; it is meant to be
typed on one line.)
For shells compatible with Bourne shell (/bin/sh,
bash, or Korn shell):
eg$ GCC_EXEC_PREFIX=/local/progressive-95q4/\
H-hosttype/lib/gcc-lib/
eg$ export GCC_EXEC_PREFIX
For C shell:
eg% setenv GCC_EXEC_PREFIX /local/progressive-95q4/\
H-hosttype/lib/gcc-lib/
Note: The trailing slash `/' is important. The gcc
program uses GCC_EXEC_PREFIX simply as a prefix. If you omit the
slash (or make any other mistakes in specifying the prefix), gcc
fails with a message beginning `installation problem, cannot
exec...'.