[Bug modula2/107612] plugin/m2rte doesn't build on Mac OS X 10.7

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107612

--- Comment #1 from Rainer Orth <ro at gcc dot gnu.org> ---
Besides, the m2rte plugin is incorrectly named on Darwin, thus unusable:

cc1gm2: fatal error: inaccessible plugin file
/var/gcc/modula-2/10.7-gcc/./gcc/plugin/m2rte.dylib expanded from short plugin
name m2rte: No such file or directory
compilation terminated.

There's code in gcc/jit/Make-lang.in handling the same situation.

To get further along, I've just manually added a symlink for now.