SAS/C 7 ran fine under MorphOS on my PowerBook last time I tried (circa 2013) .
C or C++?
Compiling C with SAS on an 68030 was just fine in 199x.
Compiling C++ with Storm on an 68030 was just fine in 199x.
Compiling C++ with SAS on an 68030 was just useless in 199x.
SAS C++ isn't really a compiler but a preprocessor taking ages to create oversized C code.
SAS C then compiled that code into bloated object code (again taking ages).