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bpo-13501: allow choosing between readline and libedit (GH-24189) 

In contrast to macOS, libedit is available as its own include file and
library on Linux systems to prevent file name clashes. So if both
libraries are available on the system, readline is currently chosen by
default; and if only libedit is available, it is not found at all. This
patch adds a way to link against libedit by adding the following
arguments to configure:

  --with-readline           link against libreadline (the default)
  --with-readline=editline  link against libeditline
  --with-readline=no        disable building the readline module
  --without-readline        (same)

The runtime detection of libedit vs. readline was already done in commit
7105319ada (2019-12-04, serge-sans-paille: "bpo-38634: Allow
non-apple build to cope with libedit (GH-16986)").

Fixes: GH-12076 ("bpo-13501 Build or disable readline with Editline")
Fixes: bpo-13501 ("Make libedit support more generic; port readline / libedit to FreeBSD")
Co-authored-by: Enji Cooper (ngie-eign)
Co-authored-by: Martin Panter (vadmium)
Co-authored-by: Robert Marshall (kellinm)
This commit is contained in:
Roland Hieber 2021-02-09 02:05:25 +01:00 committed by GitHub
parent bf2e7e55d7
commit e1f7769513
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 275 additions and 207 deletions
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2
Misc/NEWS.d/next/Build/2021-01-10-22-25-23.bpo-13501.g4L-6R.rst Normal file
View File

@ -0,0 +1,2 @@
The configure script can now use *libedit* instead of *readline* with the
command line option ``--with-readline=editline``.

10
Modules/readline.c
View File

@ -26,10 +26,14 @@
# define RESTORE_LOCALE(sl)
#endif
#ifdef WITH_EDITLINE
# include <editline/readline.h>
#else
/* GNU readline definitions */
#undef HAVE_CONFIG_H /* Else readline/chardefs.h includes strings.h */
#include <readline/readline.h>
#include <readline/history.h>
# undef HAVE_CONFIG_H /* Else readline/chardefs.h includes strings.h */
# include <readline/readline.h>
# include <readline/history.h>
#endif
#ifdef HAVE_RL_COMPLETION_MATCHES
#define completion_matches(x, y) \

266
configure vendored
View File

@ -849,6 +849,7 @@ with_libc
enable_big_digits
with_platlibdir
with_wheel_pkg_dir
with_readline
with_computed_gotos
with_ensurepip
with_openssl
@ -1581,6 +1582,8 @@ Optional Packages:
--with-wheel-pkg-dir=PATH
Directory of wheel packages used by ensurepip
(default: none)
--with(out)-readline[=editline]
use Editline for backend or disable readline module
--with-computed-gotos enable computed gotos in evaluation loop (enabled by
default on supported compilers)
--with-ensurepip[=install|upgrade|no]
@ -15602,24 +15605,49 @@ $as_echo "#define HAVE_GETC_UNLOCKED 1" >>confdefs.h
fi
# Check whether --with-readline was given.
if test "${with_readline+set}" = set; then :
withval=$with_readline;
else
with_readline=yes
fi
# check where readline lives
py_cv_lib_readline=no
# save the value of LIBS so we don't actually link Python with readline
LIBS_no_readline=$LIBS
# On some systems we need to link readline to a termcap compatible
# library. NOTE: Keep the precedence of listed libraries synchronised
# with setup.py.
py_cv_lib_readline=no
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link readline libs" >&5
if test "$with_readline" != no; then
case "$with_readline" in
editline|edit)
LIBREADLINE=edit
$as_echo "#define WITH_EDITLINE 1" >>confdefs.h
;;
yes|readline)
LIBREADLINE=readline
;;
*)
as_fn_error $? "proper usage is --with(out)-readline[=editline]" "$LINENO" 5
;;
esac
# On some systems we need to link readline to a termcap compatible
# library. NOTE: Keep the precedence of listed libraries synchronised
# with setup.py.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link readline libs" >&5
$as_echo_n "checking how to link readline libs... " >&6; }
for py_libtermcap in "" tinfo ncursesw ncurses curses termcap; do
if test -z "$py_libtermcap"; then
READLINE_LIBS="-lreadline"
else
READLINE_LIBS="-lreadline -l$py_libtermcap"
fi
LIBS="$READLINE_LIBS $LIBS_no_readline"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
for py_libtermcap in "" tinfo ncursesw ncurses curses termcap; do
if test -z "$py_libtermcap"; then
READLINE_LIBS="-l$LIBREADLINE"
else
READLINE_LIBS="-l$LIBREADLINE -l$py_libtermcap"
fi
LIBS="$READLINE_LIBS $LIBS_no_readline"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
@ -15642,73 +15670,67 @@ if ac_fn_c_try_link "$LINENO"; then :
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
if test $py_cv_lib_readline = yes; then
break
fi
done
# Uncomment this line if you want to use READINE_LIBS in Makefile or scripts
#AC_SUBST([READLINE_LIBS])
if test $py_cv_lib_readline = no; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
if test $py_cv_lib_readline = yes; then
break
fi
done
# Uncomment this line if you want to use READLINE_LIBS in Makefile or scripts
#AC_SUBST([READLINE_LIBS])
if test $py_cv_lib_readline = no; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
$as_echo "none" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $READLINE_LIBS" >&5
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $READLINE_LIBS" >&5
$as_echo "$READLINE_LIBS" >&6; }
$as_echo "#define HAVE_LIBREADLINE 1" >>confdefs.h
fi
fi
# check for readline 2.2
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <readline/readline.h>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :
have_readline=yes
else
have_readline=no
if test "$py_cv_lib_readline" = yes; then
# check for readline 2.2
ac_fn_c_check_decl "$LINENO" "rl_completion_append_character" "ac_cv_have_decl_rl_completion_append_character" "
#include <stdio.h> /* Must be first for Gnu Readline */
#ifdef WITH_EDITLINE
# include <editline/readline.h>
#else
# include <readline/readline.h>
#endif
fi
rm -f conftest.err conftest.i conftest.$ac_ext
if test $have_readline = yes
then
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <readline/readline.h>
_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
$EGREP "extern int rl_completion_append_character;" >/dev/null 2>&1; then :
"
if test "x$ac_cv_have_decl_rl_completion_append_character" = xyes; then :
$as_echo "#define HAVE_RL_COMPLETION_APPEND_CHARACTER 1" >>confdefs.h
fi
rm -f conftest*
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <readline/readline.h>
ac_fn_c_check_decl "$LINENO" "rl_completion_suppress_append" "ac_cv_have_decl_rl_completion_suppress_append" "
#include <stdio.h> /* Must be first for Gnu Readline */
#ifdef WITH_EDITLINE
# include <editline/readline.h>
#else
# include <readline/readline.h>
#endif
_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
$EGREP "extern int rl_completion_suppress_append;" >/dev/null 2>&1; then :
"
if test "x$ac_cv_have_decl_rl_completion_suppress_append" = xyes; then :
$as_echo "#define HAVE_RL_COMPLETION_SUPPRESS_APPEND 1" >>confdefs.h
fi
rm -f conftest*
fi
# check for readline 4.0
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for rl_pre_input_hook in -lreadline" >&5
$as_echo_n "checking for rl_pre_input_hook in -lreadline... " >&6; }
if ${ac_cv_lib_readline_rl_pre_input_hook+:} false; then :
# check for readline 4.0
as_ac_Lib=`$as_echo "ac_cv_lib_$LIBREADLINE''_rl_pre_input_hook" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for rl_pre_input_hook in -l$LIBREADLINE" >&5
$as_echo_n "checking for rl_pre_input_hook in -l$LIBREADLINE... " >&6; }
if eval \${$as_ac_Lib+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lreadline $READLINE_LIBS $LIBS"
LIBS="-l$LIBREADLINE $READLINE_LIBS $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@ -15728,31 +15750,33 @@ return rl_pre_input_hook ();
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_lib_readline_rl_pre_input_hook=yes
eval "$as_ac_Lib=yes"
else
ac_cv_lib_readline_rl_pre_input_hook=no
eval "$as_ac_Lib=no"
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_rl_pre_input_hook" >&5
$as_echo "$ac_cv_lib_readline_rl_pre_input_hook" >&6; }
if test "x$ac_cv_lib_readline_rl_pre_input_hook" = xyes; then :
eval ac_res=\$$as_ac_Lib
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if eval test \"x\$"$as_ac_Lib"\" = x"yes"; then :
$as_echo "#define HAVE_RL_PRE_INPUT_HOOK 1" >>confdefs.h
fi
# also in 4.0
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for rl_completion_display_matches_hook in -lreadline" >&5
$as_echo_n "checking for rl_completion_display_matches_hook in -lreadline... " >&6; }
if ${ac_cv_lib_readline_rl_completion_display_matches_hook+:} false; then :
# also in 4.0
as_ac_Lib=`$as_echo "ac_cv_lib_$LIBREADLINE''_rl_completion_display_matches_hook" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for rl_completion_display_matches_hook in -l$LIBREADLINE" >&5
$as_echo_n "checking for rl_completion_display_matches_hook in -l$LIBREADLINE... " >&6; }
if eval \${$as_ac_Lib+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lreadline $READLINE_LIBS $LIBS"
LIBS="-l$LIBREADLINE $READLINE_LIBS $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@ -15772,31 +15796,33 @@ return rl_completion_display_matches_hook ();
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_lib_readline_rl_completion_display_matches_hook=yes
eval "$as_ac_Lib=yes"
else
ac_cv_lib_readline_rl_completion_display_matches_hook=no
eval "$as_ac_Lib=no"
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_rl_completion_display_matches_hook" >&5
$as_echo "$ac_cv_lib_readline_rl_completion_display_matches_hook" >&6; }
if test "x$ac_cv_lib_readline_rl_completion_display_matches_hook" = xyes; then :
eval ac_res=\$$as_ac_Lib
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if eval test \"x\$"$as_ac_Lib"\" = x"yes"; then :
$as_echo "#define HAVE_RL_COMPLETION_DISPLAY_MATCHES_HOOK 1" >>confdefs.h
fi
# also in 4.0, but not in editline
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for rl_resize_terminal in -lreadline" >&5
$as_echo_n "checking for rl_resize_terminal in -lreadline... " >&6; }
if ${ac_cv_lib_readline_rl_resize_terminal+:} false; then :
# also in 4.0, but not in editline
as_ac_Lib=`$as_echo "ac_cv_lib_$LIBREADLINE''_rl_resize_terminal" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for rl_resize_terminal in -l$LIBREADLINE" >&5
$as_echo_n "checking for rl_resize_terminal in -l$LIBREADLINE... " >&6; }
if eval \${$as_ac_Lib+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lreadline $READLINE_LIBS $LIBS"
LIBS="-l$LIBREADLINE $READLINE_LIBS $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@ -15816,31 +15842,33 @@ return rl_resize_terminal ();
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_lib_readline_rl_resize_terminal=yes
eval "$as_ac_Lib=yes"
else
ac_cv_lib_readline_rl_resize_terminal=no
eval "$as_ac_Lib=no"
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_rl_resize_terminal" >&5
$as_echo "$ac_cv_lib_readline_rl_resize_terminal" >&6; }
if test "x$ac_cv_lib_readline_rl_resize_terminal" = xyes; then :
eval ac_res=\$$as_ac_Lib
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if eval test \"x\$"$as_ac_Lib"\" = x"yes"; then :
$as_echo "#define HAVE_RL_RESIZE_TERMINAL 1" >>confdefs.h
fi
# check for readline 4.2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for rl_completion_matches in -lreadline" >&5
$as_echo_n "checking for rl_completion_matches in -lreadline... " >&6; }
if ${ac_cv_lib_readline_rl_completion_matches+:} false; then :
# check for readline 4.2
as_ac_Lib=`$as_echo "ac_cv_lib_$LIBREADLINE''_rl_completion_matches" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for rl_completion_matches in -l$LIBREADLINE" >&5
$as_echo_n "checking for rl_completion_matches in -l$LIBREADLINE... " >&6; }
if eval \${$as_ac_Lib+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lreadline $READLINE_LIBS $LIBS"
LIBS="-l$LIBREADLINE $READLINE_LIBS $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@ -15860,59 +15888,49 @@ return rl_completion_matches ();
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_lib_readline_rl_completion_matches=yes
eval "$as_ac_Lib=yes"
else
ac_cv_lib_readline_rl_completion_matches=no
eval "$as_ac_Lib=no"
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_rl_completion_matches" >&5
$as_echo "$ac_cv_lib_readline_rl_completion_matches" >&6; }
if test "x$ac_cv_lib_readline_rl_completion_matches" = xyes; then :
eval ac_res=\$$as_ac_Lib
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if eval test \"x\$"$as_ac_Lib"\" = x"yes"; then :
$as_echo "#define HAVE_RL_COMPLETION_MATCHES 1" >>confdefs.h
fi
# also in readline 4.2
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <readline/readline.h>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :
have_readline=yes
else
have_readline=no
# also in readline 4.2
ac_fn_c_check_decl "$LINENO" "rl_catch_signals" "ac_cv_have_decl_rl_catch_signals" "
#include <stdio.h> /* Must be first for Gnu Readline */
#ifdef WITH_EDITLINE
# include <editline/readline.h>
#else
# include <readline/readline.h>
#endif
fi
rm -f conftest.err conftest.i conftest.$ac_ext
if test $have_readline = yes
then
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <readline/readline.h>
_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
$EGREP "extern int rl_catch_signals;" >/dev/null 2>&1; then :
"
if test "x$ac_cv_have_decl_rl_catch_signals" = xyes; then :
$as_echo "#define HAVE_RL_CATCH_SIGNAL 1" >>confdefs.h
fi
rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for append_history in -lreadline" >&5
$as_echo_n "checking for append_history in -lreadline... " >&6; }
if ${ac_cv_lib_readline_append_history+:} false; then :
as_ac_Lib=`$as_echo "ac_cv_lib_$LIBREADLINE''_append_history" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for append_history in -l$LIBREADLINE" >&5
$as_echo_n "checking for append_history in -l$LIBREADLINE... " >&6; }
if eval \${$as_ac_Lib+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lreadline $READLINE_LIBS $LIBS"
LIBS="-l$LIBREADLINE $READLINE_LIBS $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@ -15932,22 +15950,24 @@ return append_history ();
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_lib_readline_append_history=yes
eval "$as_ac_Lib=yes"
else
ac_cv_lib_readline_append_history=no
eval "$as_ac_Lib=no"
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_append_history" >&5
$as_echo "$ac_cv_lib_readline_append_history" >&6; }
if test "x$ac_cv_lib_readline_append_history" = xyes; then :
eval ac_res=\$$as_ac_Lib
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if eval test \"x\$"$as_ac_Lib"\" = x"yes"; then :
$as_echo "#define HAVE_RL_APPEND_HISTORY 1" >>confdefs.h
fi
fi
# End of readline checks: restore LIBS
LIBS=$LIBS_no_readline

186
configure.ac
View File

@ -4891,93 +4891,125 @@ then
[Define this if you have flockfile(), getc_unlocked(), and funlockfile()])
fi
AC_ARG_WITH([readline],
[AS_HELP_STRING([--with(out)-readline@<:@=editline@:>@],
[use Editline for backend or disable readline module])],
[],
[with_readline=yes])
# check where readline lives
py_cv_lib_readline=no
# save the value of LIBS so we don't actually link Python with readline
LIBS_no_readline=$LIBS
# On some systems we need to link readline to a termcap compatible
# library. NOTE: Keep the precedence of listed libraries synchronised
# with setup.py.
py_cv_lib_readline=no
AC_MSG_CHECKING([how to link readline libs])
for py_libtermcap in "" tinfo ncursesw ncurses curses termcap; do
if test -z "$py_libtermcap"; then
READLINE_LIBS="-lreadline"
if test "$with_readline" != no; then
case "$with_readline" in
editline|edit)
LIBREADLINE=edit
AC_DEFINE(WITH_EDITLINE, 1,
[Define to build the readline module against Editline.])
;;
yes|readline)
LIBREADLINE=readline
;;
*)
AC_MSG_ERROR([proper usage is --with(out)-readline@<:@=editline@:>@])
;;
esac
# On some systems we need to link readline to a termcap compatible
# library. NOTE: Keep the precedence of listed libraries synchronised
# with setup.py.
AC_MSG_CHECKING([how to link readline libs])
for py_libtermcap in "" tinfo ncursesw ncurses curses termcap; do
if test -z "$py_libtermcap"; then
READLINE_LIBS="-l$LIBREADLINE"
else
READLINE_LIBS="-l$LIBREADLINE -l$py_libtermcap"
fi
LIBS="$READLINE_LIBS $LIBS_no_readline"
AC_LINK_IFELSE(
[AC_LANG_CALL([],[readline])],
[py_cv_lib_readline=yes])
if test $py_cv_lib_readline = yes; then
break
fi
done
# Uncomment this line if you want to use READLINE_LIBS in Makefile or scripts
#AC_SUBST([READLINE_LIBS])
if test $py_cv_lib_readline = no; then
AC_MSG_RESULT([none])
else
READLINE_LIBS="-lreadline -l$py_libtermcap"
AC_MSG_RESULT([$READLINE_LIBS])
AC_DEFINE(HAVE_LIBREADLINE, 1,
[Define to build the readline module.])
fi
LIBS="$READLINE_LIBS $LIBS_no_readline"
AC_LINK_IFELSE(
[AC_LANG_CALL([],[readline])],
[py_cv_lib_readline=yes])
if test $py_cv_lib_readline = yes; then
break
fi
done
# Uncomment this line if you want to use READINE_LIBS in Makefile or scripts
#AC_SUBST([READLINE_LIBS])
if test $py_cv_lib_readline = no; then
AC_MSG_RESULT([none])
else
AC_MSG_RESULT([$READLINE_LIBS])
AC_DEFINE(HAVE_LIBREADLINE, 1,
[Define if you have the readline library (-lreadline).])
fi
# check for readline 2.2
AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <readline/readline.h>]])],
[have_readline=yes],
[have_readline=no]
)
if test $have_readline = yes
then
AC_EGREP_HEADER([extern int rl_completion_append_character;],
[readline/readline.h],
AC_DEFINE(HAVE_RL_COMPLETION_APPEND_CHARACTER, 1,
[Define if you have readline 2.2]), )
AC_EGREP_HEADER([extern int rl_completion_suppress_append;],
[readline/readline.h],
AC_DEFINE(HAVE_RL_COMPLETION_SUPPRESS_APPEND, 1,
[Define if you have rl_completion_suppress_append]), )
if test "$py_cv_lib_readline" = yes; then
# check for readline 2.2
AC_CHECK_DECL(rl_completion_append_character,
AC_DEFINE(HAVE_RL_COMPLETION_APPEND_CHARACTER, 1,
[Define if you have readline 2.2]),,
[
#include <stdio.h> /* Must be first for Gnu Readline */
#ifdef WITH_EDITLINE
# include <editline/readline.h>
#else
# include <readline/readline.h>
#endif
])
AC_CHECK_DECL(rl_completion_suppress_append,
AC_DEFINE(HAVE_RL_COMPLETION_SUPPRESS_APPEND, 1,
[Define if you have rl_completion_suppress_append]),,
[
#include <stdio.h> /* Must be first for Gnu Readline */
#ifdef WITH_EDITLINE
# include <editline/readline.h>
#else
# include <readline/readline.h>
#endif
])
# check for readline 4.0
AC_CHECK_LIB($LIBREADLINE, rl_pre_input_hook,
AC_DEFINE(HAVE_RL_PRE_INPUT_HOOK, 1,
[Define if you have readline 4.0]),,$READLINE_LIBS)
# also in 4.0
AC_CHECK_LIB($LIBREADLINE, rl_completion_display_matches_hook,
AC_DEFINE(HAVE_RL_COMPLETION_DISPLAY_MATCHES_HOOK, 1,
[Define if you have readline 4.0]),,$READLINE_LIBS)
# also in 4.0, but not in editline
AC_CHECK_LIB($LIBREADLINE, rl_resize_terminal,
AC_DEFINE(HAVE_RL_RESIZE_TERMINAL, 1,
[Define if you have readline 4.0]),,$READLINE_LIBS)
# check for readline 4.2
AC_CHECK_LIB($LIBREADLINE, rl_completion_matches,
AC_DEFINE(HAVE_RL_COMPLETION_MATCHES, 1,
[Define if you have readline 4.2]),,$READLINE_LIBS)
# also in readline 4.2
AC_CHECK_DECL(rl_catch_signals,
AC_DEFINE(HAVE_RL_CATCH_SIGNAL, 1,
[Define if you can turn off readline's signal handling.]),,
[
#include <stdio.h> /* Must be first for Gnu Readline */
#ifdef WITH_EDITLINE
# include <editline/readline.h>
#else
# include <readline/readline.h>
#endif
])
AC_CHECK_LIB($LIBREADLINE, append_history,
AC_DEFINE(HAVE_RL_APPEND_HISTORY, 1,
[Define if readline supports append_history]),,$READLINE_LIBS)
fi
# check for readline 4.0
AC_CHECK_LIB(readline, rl_pre_input_hook,
AC_DEFINE(HAVE_RL_PRE_INPUT_HOOK, 1,
[Define if you have readline 4.0]), ,$READLINE_LIBS)
# also in 4.0
AC_CHECK_LIB(readline, rl_completion_display_matches_hook,
AC_DEFINE(HAVE_RL_COMPLETION_DISPLAY_MATCHES_HOOK, 1,
[Define if you have readline 4.0]), ,$READLINE_LIBS)
# also in 4.0, but not in editline
AC_CHECK_LIB(readline, rl_resize_terminal,
AC_DEFINE(HAVE_RL_RESIZE_TERMINAL, 1,
[Define if you have readline 4.0]), ,$READLINE_LIBS)
# check for readline 4.2
AC_CHECK_LIB(readline, rl_completion_matches,
AC_DEFINE(HAVE_RL_COMPLETION_MATCHES, 1,
[Define if you have readline 4.2]), ,$READLINE_LIBS)
# also in readline 4.2
AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <readline/readline.h>]])],
[have_readline=yes],
[have_readline=no]
)
if test $have_readline = yes
then
AC_EGREP_HEADER([extern int rl_catch_signals;],
[readline/readline.h],
AC_DEFINE(HAVE_RL_CATCH_SIGNAL, 1,
[Define if you can turn off readline's signal handling.]), )
fi
AC_CHECK_LIB(readline, append_history,
AC_DEFINE(HAVE_RL_APPEND_HISTORY, 1,
[Define if readline supports append_history]), ,$READLINE_LIBS)
# End of readline checks: restore LIBS
LIBS=$LIBS_no_readline

5
pyconfig.h.in
View File

@ -610,7 +610,7 @@
/* Define to 1 if you have the <libintl.h> header file. */
#undef HAVE_LIBINTL_H
/* Define if you have the readline library (-lreadline). */
/* Define to build the readline module. */
#undef HAVE_LIBREADLINE
/* Define to 1 if you have the `resolv' library (-lresolv). */
@ -1554,6 +1554,9 @@
Dyld is necessary to support frameworks. */
#undef WITH_DYLD
/* Define to build the readline module against Editline. */
#undef WITH_EDITLINE
/* Define to 1 if libintl is needed for locale functions. */
#undef WITH_LIBINTL

13
setup.py
View File

@ -1022,7 +1022,6 @@ class PyBuildExt(build_ext):
def detect_readline_curses(self):
# readline
do_readline = self.compiler.find_library_file(self.lib_dirs, 'readline')
readline_termcap_library = ""
curses_library = ""
# Cannot use os.popen here in py3k.
@ -1030,7 +1029,13 @@ class PyBuildExt(build_ext):
if not os.path.exists(self.build_temp):
os.makedirs(self.build_temp)
# Determine if readline is already linked against curses or tinfo.
if do_readline:
if sysconfig.get_config_var('HAVE_LIBREADLINE'):
if sysconfig.get_config_var('WITH_EDITLINE'):
readline_lib = 'edit'
else:
readline_lib = 'readline'
do_readline = self.compiler.find_library_file(self.lib_dirs,
readline_lib)
if CROSS_COMPILING:
ret = run_command("%s -d %s | grep '(NEEDED)' > %s"
% (sysconfig.get_config_var('READELF'),
@ -1053,6 +1058,8 @@ class PyBuildExt(build_ext):
break
if os.path.exists(tmpfile):
os.unlink(tmpfile)
else:
do_readline = False
# Issue 7384: If readline is already linked against curses,
# use the same library for the readline and curses modules.
if 'curses' in readline_termcap_library:
@ -1092,7 +1099,7 @@ class PyBuildExt(build_ext):
else:
readline_extra_link_args = ()
readline_libs = ['readline']
readline_libs = [readline_lib]
if readline_termcap_library:
pass # Issue 7384: Already linked against curses or tinfo.
elif curses_library: