diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 91 |
1 files changed, 60 insertions, 31 deletions
diff --git a/configure.in b/configure.in index 1dc5c8e..5d60834 100644 --- a/configure.in +++ b/configure.in @@ -243,38 +243,67 @@ AC_MSG_RESULT($withval) LIBS="$withval $LIBS" ], AC_MSG_RESULT(no)) -AC_MSG_CHECKING(for --with-readline) -AC_ARG_WITH(readline, [--with-readline[=DIRECTORY] use GNU readline library], [ -AC_MSG_RESULT($withval) -AC_DEFINE(WITH_READLINE) -if test -d "$withval" -then LDFLAGS="$LDFLAGS -L$withval" +AC_MSG_CHECKING(for --with(out)-readline) +use_readline="yes" +AC_ARG_WITH(readline, +[--with-readline=DIRECTORY search GNU readline library in DIRECTORY +--without-readline do not use GNU readline library], +[AC_MSG_RESULT($withval); use_readline="$withval"], +[AC_MSG_RESULT((default) yes)]) +if test "$use_readline" != "no" +then + if test "$use_readline" != "yes" + then add_ldflags="-L$use_readline" + else add_ldflags="" + fi + # See where the termcap interface could be hiding... + AC_MSG_CHECKING(for readline and termcap libraries) + AC_CACHE_VAL(ac_cv_readline_termcap, + [ + AC_MSG_RESULT(have to find out) + save_libs="$LIBS" + save_ldflags="$LDFLAGS" + LDFLAGS="$save_ldflags $add_ldflags" + rl="-lreadline" + first="" + # Hack for SGI IRIX 5.x. + # Both termcap and gl have an entry point clear(). + # When linking with both shared libraries, we're in trouble. + # We don't need the one in termcap. + # By forcing a static link for termcap, we avoid + # linking its clear() entry point. + if test -f /usr/lib/libgl.so -a -f /usr/lib/libtermcap.a + then first="/usr/lib/libtermcap.a" + fi + for add_lib in \ + "$first" "-ltermcap" "-ltermlib" "-lcurses" "-lncurses" + do + AC_MSG_CHECKING(for $rl $add_lib) + LIBS="$save_libs $rl $add_lib" + AC_TRY_LINK([extern char *readline();], + [char *line=readline();], + [AC_MSG_RESULT(yes); + ac_cv_readline_termcap="$rl $add_lib"], + [AC_MSG_RESULT(no)]) + if test "$ac_cv_readline_termcap" != "" + then break + fi + done + LIBS="$save_libs" + LDFLAGS="$save_ldflags" + AC_MSG_CHECKING(result from check for readline and termcap) + ]) + if test "$ac_cv_readline_termcap" = "" + then + AC_MSG_RESULT(no) + AC_MSG_WARN(cannot link with GNU readline -- see config.log) + else + AC_MSG_RESULT($ac_cv_readline_termcap) + LIBS="$LIBS $ac_cv_readline_termcap" + LDFLAGS="$LDFLAGS $add_ldflags" + AC_DEFINE(WITH_READLINE) + fi fi -# first check if we can compile without lib termcap -AC_MSG_CHECKING(for -lreadline without -ltermcap) -# check if a libreadline exists -LIBS="$LIBS -lreadline" -AC_TRY_LINK(extern char *readline();,char *line=readline();,[ - AC_MSG_RESULT(yes)],[ - AC_MSG_RESULT(no) - AC_CHECKING(for -lreadline that needs -ltermcap) - termcap= - AC_CHECK_LIB(termcap, tgetent, [termcap=termcap], [ - AC_CHECK_LIB(termlib, tgetent, [termcap=termlib], [ - AC_ERROR(no working -ltermcap/termlib found -- do not use --with-readline)])]) - # Avoid possible conflict between shared libraries termcap and gl - # on IRIX 5: both contain a routine called clear. - if test -f /usr/lib/lib$termcap.a - then LIBS="$LIBS /usr/lib/lib$termcap.a" - else LIBS="$LIBS -l$termcap" - fi - AC_MSG_CHECKING(for -lreadline) - AC_TRY_LINK(extern char *readline();, char *line=readline();,[ - AC_MSG_RESULT(yes)],[ - AC_ERROR(no working GNU readline library found -- do not use --with-readline)]) - ]) -], -AC_MSG_RESULT(no)) AC_MSG_CHECKING(for --with-thread) AC_ARG_WITH(thread, [--with-thread[=DIRECTORY] make interpreter thread-safe], [ |