diff options
Diffstat (limited to 'conf/m4/plptools/PLP_CHECK_READLINE.m4')
| -rw-r--r-- | conf/m4/plptools/PLP_CHECK_READLINE.m4 | 61 |
1 files changed, 36 insertions, 25 deletions
diff --git a/conf/m4/plptools/PLP_CHECK_READLINE.m4 b/conf/m4/plptools/PLP_CHECK_READLINE.m4 index 3df8b5b..7f832ac 100644 --- a/conf/m4/plptools/PLP_CHECK_READLINE.m4 +++ b/conf/m4/plptools/PLP_CHECK_READLINE.m4 @@ -10,36 +10,51 @@ dnl AC_DEFUN(PLP_CHECK_READLINE, [ AC_MSG_CHECKING(for readline in -lreadline) - ac_cv_addcurses=false - ac_cv_have_libreadline=false + ac_cv_readline_libs="" + rl_desc="Define this, if you have libreadline" saved_libs=$LIBS LIBS="$LIBS -lreadline" - link1ok=0 - link2ok=0 - AC_TRY_LINK(,[extern char *readline(void); readline();],link1ok=1) - LIBS="$LIBS -lreadline -lcurses" - AC_TRY_LINK(,[extern char *readline(void); readline();],link2ok=1) + l1ok=0 + l2ok=0 + l3ok=0 + l4ok=0 + AC_TRY_LINK(,[extern char *readline(void); readline();],l1ok=1) + LIBS="$saved_LIBS -lreadline -ltermcap" + AC_TRY_LINK(,[extern char *readline(void); readline();],l2ok=1) + LIBS="$saved_LIBS -lreadline -lcurses" + AC_TRY_LINK(,[extern char *readline(void); readline();],l3ok=1) + LIBS="$saved_LIBS -lreadline -lncurses" + AC_TRY_LINK(,[extern char *readline(void); readline();],l4ok=1) LIBS="$saved_LIBS" - case "$link1ok$link2ok" in - 00) + case "$l1ok$l2ok$l3ok$l4ok" in + 0000) AC_MSG_RESULT(no) ;; - 01) - ac_cv_have_libreadline=true; - ac_cv_addcurses=true - AC_DEFINE_UNQUOTED(HAVE_LIBREADLINE) + 01*) + dnl We prefer libtermcap cause it's smaller + ac_cv_readline_libs="-lreadline -ltermcap" + AC_MSG_RESULT([yes, and needs libtermcap]) + ;; + 001*) + dnl Prefer libcurses over libncurses + ac_cv_readline_libs="-lreadline -lcurses" AC_MSG_RESULT([yes, and needs libcurses]) - PLP_READLINE_402 + ;; + 0001) + ac_cv_readline_libs="-lreadline -lncurses" + AC_MSG_RESULT([yes, and needs libncurses]) ;; 1*) - ac_cv_have_libreadline=true; - AC_DEFINE_UNQUOTED(HAVE_LIBREADLINE) + ac_cv_readline_libs="-lreadline" AC_MSG_RESULT(yes) - PLP_READLINE_402 ;; esac - AM_CONDITIONAL(HAVE_LIBREADLINE, test x$ac_cv_have_libreadline = xtrue) - AM_CONDITIONAL(ADD_LIBCURSES, test x$ac_cv_addcurses = xtrue) + LIBREADLINE="${ac_cv_readline_libs}" + AC_SUBST(LIBREADLINE) + if test "${ac_cv_readline_libs}" != "" ; then + AC_DEFINE_UNQUOTED(HAVE_LIBREADLINE,1,$rl_desc) + PLP_READLINE_VERSION + fi ]) dnl @@ -47,15 +62,11 @@ dnl Check for readline version. dnl Those readline developers change their API too frequently dnl and don't provide a version number in the headers :-( dnl -AC_DEFUN(PLP_READLINE_402, +AC_DEFUN(PLP_READLINE_VERSION, [ AC_MSG_CHECKING(for readline version) saved_libs=$LIBS - if $ac_cv_addcurses ; then - LIBS="$LIBS -lreadline -lcurses" - else - LIBS="$LIBS -lreadline" - fi + LIBS="$LIBS $LIBREADLINE" rl42=false AC_TRY_LINK(,[extern void rl_set_prompt(void); rl_set_prompt();],rl42=true) LIBS="$saved_LIBS" |