* configure.ac: Add -fno-omit-frame-pointer after -Os in default
cflags, just to be sure.
Fedora's readline library does not itself link to termcap, hence
we must pass the result of termcap tests in via OTHER-LIBRARIES
argument, otherwise the test of main in readline will fail due to
missing termcap systems. On systems like Debian, -ltermcap
is not needed for the readline test, because libreadline already
links to it.