For BBOX_LIB_LIST="crypt m" trylink ... with just applet true, we pulled in
libm because in this case we tried to use invalid flags (plain "-l" without
a lib) which of course failed, thus the script thought that -lm was needed.
The fix is not to pass "-l" without a lib if we are about to check if any
or the last remaining lib is really needed.
trylink: explain how to modify link and drastically decrease amount
of padding (unfortunately, needs hand editing ATM).
*: add ALIGN1 / ALIGN2 to global strings and arrays of bytes and shorts
size saving: 0.5k
specified libs, and if it succeeds, we try to remove them
one-by-one. If link succeeds, then library is thrown out.
Should solve the problem with SELinux linking in libsepol
even when not needed.