Fixing sqrt for builds with bignums but no complex.
sexp_bignum_sqrt is only needed if SEXP_USE_MATH is enabled.
Speeding up build tests with CFLAGS and parallel make.
Now all combinations complete in half a minute.
Guarding @import expressions from the repl.
Fixing warnings inside modules with no current-error-port defined.
Adding warning to remind people to (import (scheme base)).
Reducing primitive errors to warnings.
Should add an option to escalate all warnings to errors.
Aligning line wrap in nested test groups.
string-split on the empty string is null, on a single space is two empty strings