Markus Armbruster
55ff9cce09
MY_LIB_READLINE tries each readline-compatible library with a sequence
of additional libraries, starting with none. If the check with none
fails, all the others checks reuse the cached result, and also fail.
Broken in commit 1cbda2c7d "client: Rewrite readline configuration",
v4.4.0.
Avoid the unwanted chaching.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
52 lines
1.5 KiB
Text
52 lines
1.5 KiB
Text
AC_DEFUN([MY_LIB_READLINE], [
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AC_CACHE_CHECK([for a readline compatible library],
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my_cv_lib_readline, [
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my_lib_readline_save_LIBS="$LIBS"
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for readline_lib in readline edit editline; do
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for termcap_lib in "" termlib termcap curses ncurses; do
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if test -z "$termcap_lib"; then
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my_cv_lib_readline="-l$readline_lib"
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else
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my_cv_lib_readline="-l$readline_lib -l$termcap_lib"
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fi
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LIBS="$my_cv_lib_readline $my_lib_readline_save_LIBS"
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AC_LINK_IFELSE([AC_LANG_CALL([], [add_history])],
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[break 2], [my_cv_lib_readline=no])
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done
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done
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])
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if test "$my_cv_lib_readline" != no; then
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AC_CHECK_HEADER([readline/readline.h], [], [my_cv_lib_readline=no],
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[AC_INCLUDES_DEFAULT])
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fi
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if test "$my_cv_lib_readline" != no; then
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AC_CHECK_HEADER([readline/history.h], [], [my_cv_lib_readline=no],
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[AC_INCLUDES_DEFAULT])
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fi
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if test "$my_cv_lib_readline" = no; then
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LIBS="$my_lib_readline_save_LIBS"
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else
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AC_DEFINE([HAVE_LIBREADLINE], [1],
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[Define if you have libreadline])
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fi
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])
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AC_DEFUN([MY_WITH_READLINE], [
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AC_ARG_WITH([readline],
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[AS_HELP_STRING([--with-readline],
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[support fancy command line editing @<:@default=check@:>@])],
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[],
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[with_readline=check])
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if test "x$with_readline" != xno; then
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MY_LIB_READLINE
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if test "x$my_cv_lib_readline$with_readline" = xnoyes; then
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AC_MSG_FAILURE([--with-readline was given, but test for readline failed])
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fi
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if test "$my_cv_lib_readline" = no; then
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with_readline=no
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else
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with_readline=yes
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fi
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fi])
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