Maxima gets overflow with latest snapshot 2021-01
Building maxima with the latest snapshot-2021-01 works fine, but running the testsuite produces 3 errors that didn't happen with snapshot 2020-04. The overflow comes from `airy_ai(2.0)`, which calls `slatec::daie`. The error is ``` Arithmetic error FLOATING-POINT-OVERFLOW signalled. Operation was *, operands (1.7976931348623157e308 NIL). [Condition of type FLOATING-POINT-OVERFLOW] Restarts: 0: [MACSYMA-QUIT] Maxima top-level ``` The backtrace points to ``` (EXPT (F2CL-LIB:D1MACH 2) 0.6666) ``` This can be reproduced by: ``` (require :f2cl) (make-package "SLATEC") (setf *read-default-float-format* 'double-float) (dolist (f '("initds" "dcsevl" "d9aimp" "daie")) (compile-file f :load t)) (slatec::daie 2d0) ``` The listed files come from the `src/numerical/slatec` directory from maxima's sources. A disassemble of`slatec::daie` appears to be essentially the same between snapshot 2020-04 and 2021-01. The differences are the address of the static vars for allocation, and the addresses of the code constants. 2021-01 removed some static symbols so the address changes are expected. I have no idea what the problem could be; there weren't that many changes between 2020-04 and 2021-01.
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