math: fix a regression in powl and do some cleanups
tree4a860dae892a57c8c2cf75d82371a915ebf3af3b
-rw-r--r-- 87 .gitignore
-rw-r--r-- 26428 COPYING
-rw-r--r-- 2512 COPYRIGHT
-rw-r--r-- 5415 INSTALL
-rw-r--r-- 2924 Makefile
-rw-r--r-- 2014 README
-rw-r--r-- 14796 WHATSNEW
drwxr-xr-x - arch
drwxr-xr-x - crt
drwxr-xr-x - dist
drwxr-xr-x - include
drwxr-xr-x - lib
drwxr-xr-x - src
drwxr-xr-x - tools