mirror of https://github.com/python/cpython
[3.13] gh-113565: Improve and harden detection of curses dependencies (GH-119816) (#121202)
1. Use pkg-config to check for ncursesw/panelw. If that fails, use
pkg-config to check for ncurses/panel.
2. Regardless of pkg-config output, search for curses/panel headers, so
we're sure we have all defines in pyconfig.h.
3. Regardless of pkg-config output, check if libncurses or libncursesw
contains the 'initscr' symbol; if it does _and_ pkg-config failed
earlier, add the resulting -llib linker option to CURSES_LIBS.
Ditto for 'update_panels' and PANEL_LIBS.
4. Wrap the rest of the checks with WITH_SAVE_ENV and make sure we're
using updated LIBS and CPPFLAGS for those.
Add the PY_CHECK_CURSES convenience macro.
(cherry picked from commit f80376b129)
Co-authored-by: Erlend E. Aasland <erlend@python.org>
This commit is contained in:
Miss Islington (bot)
GitHub
parent
d481d4b767
commit
82777cd024
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@ -36,13 +36,21 @@
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#define NCURSES_OPAQUE 0
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#endif
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#ifdef HAVE_NCURSES_H
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#include <ncurses.h>
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#else
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#include <curses.h>
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#if defined(HAVE_NCURSESW_NCURSES_H)
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# include <ncursesw/ncurses.h>
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#elif defined(HAVE_NCURSESW_CURSES_H)
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# include <ncursesw/curses.h>
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#elif defined(HAVE_NCURSES_NCURSES_H)
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# include <ncurses/ncurses.h>
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#elif defined(HAVE_NCURSES_CURSES_H)
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# include <ncurses/curses.h>
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#elif defined(HAVE_NCURSES_H)
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# include <ncurses.h>
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#elif defined(HAVE_CURSES_H)
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# include <curses.h>
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#endif
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#ifdef HAVE_NCURSES_H
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#ifdef NCURSES_VERSION
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/* configure was checking <curses.h>, but we will
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use <ncurses.h>, which has some or all these features. */
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#if !defined(WINDOW_HAS_FLAGS) && \
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@ -0,0 +1,2 @@
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Improve :mod:`curses` and :mod:`curses.panel` dependency checks in
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:program:`configure`.
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@ -19,7 +19,13 @@ static const char PyCursesVersion[] = "2.1";
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#include "py_curses.h"
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#include <panel.h>
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#if defined(HAVE_NCURSESW_PANEL_H)
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# include <ncursesw/panel.h>
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#elif defined(HAVE_NCURSES_PANEL_H)
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# include <ncurses/panel.h>
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#elif defined(HAVE_PANEL_H)
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# include <panel.h>
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#endif
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typedef struct {
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PyObject *PyCursesError;
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@ -128,7 +128,7 @@ static const char PyCursesVersion[] = "2.2";
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#include <langinfo.h>
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#endif
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#if !defined(HAVE_NCURSES_H) && (defined(sgi) || defined(__sun) || defined(SCO5))
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#if !defined(NCURSES_VERSION) && (defined(sgi) || defined(__sun) || defined(SCO5))
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#define STRICT_SYSV_CURSES /* Don't use ncurses extensions */
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typedef chtype attr_t; /* No attr_t type is available */
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#endif
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197
configure.ac
197
configure.ac
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@ -6653,55 +6653,88 @@ then
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[Define if year with century should be normalized for strftime.])
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fi
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dnl check for ncurses/ncursesw and panel/panelw
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dnl check for ncursesw/ncurses and panelw/panel
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dnl NOTE: old curses is not detected.
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dnl have_curses=[no, ncursesw, ncurses]
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dnl have_panel=[no, panelw, panel]
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dnl have_curses=[no, yes]
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dnl have_panel=[no, yes]
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have_curses=no
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have_panel=no
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AH_TEMPLATE([HAVE_NCURSESW], [Define to 1 if you have the `ncursesw' library.])
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AC_CHECK_HEADERS([curses.h ncurses.h])
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dnl PY_CHECK_CURSES(LIBCURSES, LIBPANEL)
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dnl Sets 'have_curses' and 'have_panel'.
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dnl For the PKG_CHECK_MODULES() calls, we can safely reuse the first variable
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dnl here, since we're only calling the macro a second time if the first call
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dnl fails.
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AC_DEFUN([PY_CHECK_CURSES], [dnl
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AS_VAR_PUSHDEF([curses_var], [m4_toupper([$1])])
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AS_VAR_PUSHDEF([panel_var], [m4_toupper([$2])])
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PKG_CHECK_MODULES([CURSES], [$1],
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[AC_DEFINE([HAVE_]curses_var, [1], [Define if you have the '$1' library])
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AS_VAR_SET([have_curses], [yes])
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PKG_CHECK_MODULES([PANEL], [$2],
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[AC_DEFINE([HAVE_]panel_var, [1], [Define if you have the '$2' library])
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AS_VAR_SET([have_panel], [yes])],
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[AS_VAR_SET([have_panel], [no])])],
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[AS_VAR_SET([have_curses], [no])])
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AS_VAR_POPDEF([curses_var])
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AS_VAR_POPDEF([panel_var])])
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AS_VAR_IF([ac_cv_header_ncurses_h], [yes], [
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if test "$ac_sys_system" != "Darwin"; then
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dnl On macOS, there is no separate /usr/lib/libncursesw nor libpanelw.
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PKG_CHECK_MODULES([CURSES], [ncursesw], [
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AC_DEFINE([HAVE_NCURSESW], [1])
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have_curses=ncursesw
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], [
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WITH_SAVE_ENV([
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AC_CHECK_LIB([ncursesw], [initscr], [
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AC_DEFINE([HAVE_NCURSESW], [1])
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have_curses=ncursesw
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CURSES_CFLAGS=${CURSES_CFLAGS-""}
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CURSES_LIBS=${CURSES_LIBS-"-lncursesw"}
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])
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])
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])
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fi
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# Check for ncursesw/panelw first. If that fails, try ncurses/panel.
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PY_CHECK_CURSES([ncursesw], [panelw])
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AS_VAR_IF([have_curses], [no],
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[PY_CHECK_CURSES([ncurses], [panel])])
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AS_VAR_IF([have_curses], [no], [
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PKG_CHECK_MODULES([CURSES], [ncurses], [
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have_curses=ncurses
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], [
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WITH_SAVE_ENV([
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AC_CHECK_LIB([ncurses], [initscr], [
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have_curses=ncurses
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CURSES_CFLAGS=${CURSES_CFLAGS-""}
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CURSES_LIBS=${CURSES_LIBS-"-lncurses"}
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])
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])
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])
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])
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WITH_SAVE_ENV([
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# Make sure we've got the header defines.
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AS_VAR_APPEND([CPPFLAGS], [" $CURSES_CFLAGS $PANEL_CFLAGS"])
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AC_CHECK_HEADERS(m4_normalize([
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ncursesw/curses.h ncursesw/ncurses.h ncursesw/panel.h
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ncurses/curses.h ncurses/ncurses.h ncurses/panel.h
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curses.h ncurses.h panel.h
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]))
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])dnl ac_cv_header_ncurses_h = yes
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# Check that we're able to link with crucial curses/panel functions. This
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# also serves as a fallback in case pkg-config failed.
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AS_VAR_APPEND([LIBS], [" $CURSES_LIBS $PANEL_LIBS"])
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AC_SEARCH_LIBS([initscr], [ncursesw ncurses],
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[AS_VAR_IF([have_curses], [no],
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[AS_VAR_SET([have_curses], [yes])
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CURSES_LIBS=${CURSES_LIBS-"$ac_cv_search_initscr"}])],
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[AS_VAR_SET([have_curses], [no])])
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AC_SEARCH_LIBS([update_panels], [panelw panel],
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[AS_VAR_IF([have_panel], [no],
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[AS_VAR_SET([have_panel], [yes])
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PANEL_LIBS=${PANEL_LIBS-"$ac_cv_search_update_panels"}])],
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[AS_VAR_SET([have_panel], [no])])
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dnl Issue #25720: ncurses has introduced the NCURSES_OPAQUE symbol making opaque
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dnl structs since version 5.7. If the macro is defined as zero before including
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dnl [n]curses.h, ncurses will expose fields of the structs regardless of the
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dnl configuration.
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AC_DEFUN([_CURSES_INCLUDES],dnl
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[
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#define NCURSES_OPAQUE 0
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#if defined(HAVE_NCURSESW_NCURSES_H)
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# include <ncursesw/ncurses.h>
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#elif defined(HAVE_NCURSESW_CURSES_H)
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# include <ncursesw/curses.h>
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#elif defined(HAVE_NCURSES_NCURSES_H)
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# include <ncurses/ncurses.h>
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#elif defined(HAVE_NCURSES_CURSES_H)
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# include <ncurses/curses.h>
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#elif defined(HAVE_NCURSES_H)
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# include <ncurses.h>
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#elif defined(HAVE_CURSES_H)
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# include <curses.h>
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#endif
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])
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AS_IF([test "have_curses" != "no"], [
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dnl remove _XOPEN_SOURCE macro from curses cflags. pyconfig.h sets
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dnl the macro to 700.
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CURSES_CFLAGS=$(echo $CURSES_CFLAGS | sed 's/-D_XOPEN_SOURCE=600//g')
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if test "$have_curses" != no -a "$ac_sys_system" = "Darwin"; then
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AS_VAR_IF([ac_sys_system], [Darwin], [
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dnl On macOS, there is no separate /usr/lib/libncursesw nor libpanelw.
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dnl System-supplied ncurses combines libncurses/libpanel and supports wide
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dnl characters, so we can use it like ncursesw.
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@ -6711,82 +6744,17 @@ if test "$have_curses" != no -a "$ac_sys_system" = "Darwin"; then
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dnl _XOPEN_SOURCE_EXTENDED here for ncurses wide char support.
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AS_VAR_APPEND([CURSES_CFLAGS], [" -D_XOPEN_SOURCE_EXTENDED=1"])
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AC_DEFINE([HAVE_NCURSESW], [1])
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fi
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dnl TODO: detect "curses" and special cases tinfo, terminfo, or termcap
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AC_MSG_CHECKING([curses module flags])
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AS_VAR_IF([have_curses], [no], [
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AC_MSG_RESULT([no])
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], [
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AC_MSG_RESULT([$have_curses (CFLAGS: $CURSES_CFLAGS, LIBS: $CURSES_LIBS)])
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])
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dnl check for ncurses' panel/panelw library
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AC_CHECK_HEADERS([panel.h])
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AS_VAR_IF([ac_cv_header_panel_h], [yes], [
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if test "$ac_sys_system" != "Darwin"; then
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dnl On macOS, there is no separate /usr/lib/libncursesw nor libpanelw.
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AS_VAR_IF([have_curses], [ncursesw], [
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PKG_CHECK_MODULES([PANEL], [panelw], [
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have_panel=panelw
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], [
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WITH_SAVE_ENV([
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AC_CHECK_LIB([panelw], [update_panels], [
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have_panel=panelw
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PANEL_CFLAGS=${PANEL_CFLAGS-""}
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PANEL_LIBS=${PANEL_LIBS-"-lpanelw"}
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])
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])
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])
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])
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fi
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AS_VAR_IF([have_curses], [ncurses], [
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PKG_CHECK_MODULES([PANEL], [panel], [
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have_panel=panel
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], [
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WITH_SAVE_ENV([
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AC_CHECK_LIB([panel], [update_panels], [
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have_panel=panel
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PANEL_CFLAGS=${PANEL_CFLAGS-""}
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PANEL_LIBS=${PANEL_LIBS-"-lpanel"}
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])
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])
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])
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])
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])dnl ac_cv_header_panel_h = yes
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dnl pyconfig.h defines _XOPEN_SOURCE=700
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PANEL_CFLAGS=$(echo $PANEL_CFLAGS | sed 's/-D_XOPEN_SOURCE=600//g')
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AC_MSG_CHECKING([panel flags])
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AS_VAR_IF([have_panel], [no], [
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AC_MSG_RESULT([no])
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], [
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AC_MSG_RESULT([$have_panel (CFLAGS: $PANEL_CFLAGS, LIBS: $PANEL_LIBS)])
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])
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# first curses header check
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ac_save_cppflags="$CPPFLAGS"
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if test "$cross_compiling" = no; then
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CPPFLAGS="$CPPFLAGS -I/usr/include/ncursesw"
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fi
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# On Solaris, term.h requires curses.h
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AC_CHECK_HEADERS([term.h], [], [], [
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#ifdef HAVE_CURSES_H
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#include <curses.h>
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#endif
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])
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AC_CHECK_HEADERS([term.h], [], [], _CURSES_INCLUDES)
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# On HP/UX 11.0, mvwdelch is a block with a return statement
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AC_CACHE_CHECK([whether mvwdelch is an expression], [ac_cv_mvwdelch_is_expression],
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <curses.h>]], [[
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM(_CURSES_INCLUDES, [[
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int rtn;
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rtn = mvwdelch(0,0,0);
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]])],
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@ -6799,15 +6767,8 @@ then
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[Define if mvwdelch in curses.h is an expression.])
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fi
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# Issue #25720: ncurses has introduced the NCURSES_OPAQUE symbol making opaque
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# structs since version 5.7. If the macro is defined as zero before including
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# [n]curses.h, ncurses will expose fields of the structs regardless of the
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# configuration.
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AC_CACHE_CHECK([whether WINDOW has _flags], [ac_cv_window_has_flags],
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#define NCURSES_OPAQUE 0
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#include <curses.h>
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]], [[
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM(_CURSES_INCLUDES, [[
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WINDOW *w;
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w->_flags = 0;
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]])],
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@ -6829,11 +6790,7 @@ AC_DEFUN([PY_CHECK_CURSES_FUNC],
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[for curses function $1],
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[py_var],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[
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#define NCURSES_OPAQUE 0
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#include <curses.h>
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], [
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[AC_LANG_PROGRAM(_CURSES_INCLUDES, [
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#ifndef $1
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void *x=$1
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#endif
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@ -6861,6 +6818,8 @@ PY_CHECK_CURSES_FUNC([has_key])
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PY_CHECK_CURSES_FUNC([typeahead])
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PY_CHECK_CURSES_FUNC([use_env])
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CPPFLAGS=$ac_save_cppflags
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])dnl have_curses != no
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])dnl save env
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AC_MSG_NOTICE([checking for device files])
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@ -7778,11 +7737,11 @@ PY_STDLIB_MOD([_ctypes],
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[], [test "$have_libffi" = yes],
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[$NO_STRICT_OVERFLOW_CFLAGS $LIBFFI_CFLAGS], [$LIBFFI_LIBS])
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PY_STDLIB_MOD([_curses],
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[], [test "$have_curses" != "no"],
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[], [test "$have_curses" = "yes"],
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[$CURSES_CFLAGS], [$CURSES_LIBS]
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)
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PY_STDLIB_MOD([_curses_panel],
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[], [test "$have_panel" != "no"],
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[], [test "$have_curses" = "yes" && test "$have_panel" = "yes"],
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[$PANEL_CFLAGS $CURSES_CFLAGS], [$PANEL_LIBS $CURSES_LIBS]
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)
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PY_STDLIB_MOD([_decimal],
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@ -829,12 +829,33 @@
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/* Define to 1 if you have the `nanosleep' function. */
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#undef HAVE_NANOSLEEP
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/* Define to 1 if you have the `ncursesw' library. */
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/* Define if you have the 'ncurses' library */
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#undef HAVE_NCURSES
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/* Define if you have the 'ncursesw' library */
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#undef HAVE_NCURSESW
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/* Define to 1 if you have the <ncursesw/curses.h> header file. */
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#undef HAVE_NCURSESW_CURSES_H
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/* Define to 1 if you have the <ncursesw/ncurses.h> header file. */
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#undef HAVE_NCURSESW_NCURSES_H
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/* Define to 1 if you have the <ncursesw/panel.h> header file. */
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#undef HAVE_NCURSESW_PANEL_H
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/* Define to 1 if you have the <ncurses/curses.h> header file. */
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#undef HAVE_NCURSES_CURSES_H
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/* Define to 1 if you have the <ncurses.h> header file. */
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#undef HAVE_NCURSES_H
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/* Define to 1 if you have the <ncurses/ncurses.h> header file. */
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#undef HAVE_NCURSES_NCURSES_H
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/* Define to 1 if you have the <ncurses/panel.h> header file. */
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#undef HAVE_NCURSES_PANEL_H
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/* Define to 1 if you have the <ndbm.h> header file. */
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#undef HAVE_NDBM_H
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@ -878,6 +899,12 @@
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/* Define to 1 if you have the `openpty' function. */
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#undef HAVE_OPENPTY
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/* Define if you have the 'panel' library */
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#undef HAVE_PANEL
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/* Define if you have the 'panelw' library */
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#undef HAVE_PANELW
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/* Define to 1 if you have the <panel.h> header file. */
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#undef HAVE_PANEL_H
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