1) fix_tools_exports.pl need only be run on Windows hosts; was run unnecessarily on Linux too.
2) Need to export modload.pm on Linux as well as Windows hosts.
# A1.var
VARIANT A1
EXTENDS groupA
VIRTUAL
BUILD_INCLUDE append /epoc32/include/A1/build
BUILD_INCLUDE prepend /prepend/include/A1
ROM_INCLUDE prepend /epoc32/include/A1/rom
VARIANT_HRH /epoc32/include/e32std.h