Hi!
Im want to check for the presence of the GNU Readline library in a
configure script. On some systems we need to link to another library
in addition to readline for some terminal functions (e.g. tgetent).
I tried this:
AC_CHECK_LIB(readline, readline,,
AC_SEARCH_LIBS(tgetent, ncurses curses tinfo termcap)
AC_CHECK_LIB(readline, readline,,
AC_MSG_ERROR([readline not available])
)
)
This correctly determines the additional library required if the
test program used by configure doesnt compile with -lreadline
alone. However the second test for readline does not get invoked
because the result of the first test is cached. How can I tell
autoconf to forget the result of the first test before doing it
the second time?
Regards
Matthias
