Re: [libvirt] [PATCH v2 5/7] m4: readline: Drop extra_LIBS machinery

The first implementation of this logic was introduced with commit 2ec759fc58fe all the way back in 2007; looking at the build logs from our CI environment, however, it's apparent that none of the platforms we currently target are actually using it, so we can assume whatever issue it was working around has been fixed at some point in the last 12 years.

Signed-off-by: Andrea Bolognani <abologna(a)redhat.com&gt; --- m4/virt-readline.m4 | 22 ---------------------- 1 file changed, 22 deletions(-)

diff --git a/m4/virt-readline.m4 b/m4/virt-readline.m4 index 998b891d53..6f0090056a 100644 --- a/m4/virt-readline.m4 +++ b/m4/virt-readline.m4 @@ -22,20 +22,6 @@ AC_DEFUN([LIBVIRT_ARG_READLINE],[ ]) AC_DEFUN([LIBVIRT_CHECK_READLINE],[ - extra_LIBS= - lv_saved_libs=$LIBS - if test "x$with_readline" != xno; then - # Linking with -lreadline may require some termcap-related code, e.g., - # from one of the following libraries. Add it to LIBS before using - # canned library checks; then verify later if it was needed. - LIBS= - AC_SEARCH_LIBS([tgetent], [ncurses curses termcap termlib]) - case $LIBS in - no*) ;; # handle "no" and "none required" - *) extra_LIBS=$LIBS ;; # anything else is a -lLIBRARY - esac - LIBS="$lv_saved_libs $extra_LIBS" - fi # This function is present in all reasonable (5.0+) readline versions; # however, the macOS base system contains a library called libedit which @@ -59,14 +45,6 @@ AC_DEFUN([LIBVIRT_CHECK_READLINE],[ # The normal library check... LIBVIRT_CHECK_LIB([READLINE], [readline], [readline], [readline/readline.h]) - # Touch things up to avoid $extra_LIBS, if possible. Test a second - # function, to ensure we aren't being confused by caching. - LIBS=$lv_saved_libs - AC_CHECK_LIB([readline], [rl_initialize], - [], - [READLINE_LIBS="$READLINE_LIBS $extra_LIBS"]) - LIBS=$lv_saved_libs - # We need this to avoid compilation issues with modern compilers. # See 9ea3424a178 for a more detailed explanation if test "$with_readline" = "yes" ; then -- 2.20.1 -- libvir-list mailing list libvir-list(a)redhat.com https://www.redhat.com/mailman/listinfo/libvir-list