added ZERO check because bug in lapack-test
added ZERO check to zscal.c because bug in lapack-testing
bugfixes for ARM regarding lapack tests
Remove routines for making exports/linux.def

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Remove routines for generating exports/symbol.S

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Build import library for mingw

Signed-off-by: Timothy Gu <timothygu99@gmail.com>