]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - configure.in
ncurses 6.4 - patch 20240414
[ncurses.git] / configure.in
index 2388f5e82376ceface0c93b007165cc6689819fc..2d6836cb7190eb2ceff01bc788aeb8cfe2ca9db3 100644 (file)
@@ -1,5 +1,5 @@
 dnl***************************************************************************
-dnl Copyright 2018-2020,2021 Thomas E. Dickey                                *
+dnl Copyright 2018-2023,2024 Thomas E. Dickey                                *
 dnl Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
 dnl                                                                          *
 dnl Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -29,7 +29,7 @@ dnl***************************************************************************
 dnl
 dnl Author: Thomas E. Dickey 1995-on
 dnl
-dnl $Id: configure.in,v 1.733 2021/06/26 23:10:42 tom Exp $
+dnl $Id: configure.in,v 1.779 2024/04/10 08:04:00 tom Exp $
 dnl Process this file with autoconf to produce a configure script.
 dnl
 dnl For additional information, see
@@ -38,7 +38,7 @@ dnl     https://invisible-island.net/autoconf/my-autoconf.html
 dnl
 dnl ---------------------------------------------------------------------------
 AC_PREREQ(2.52.20210101)
-AC_REVISION($Revision: 1.733 $)
+AC_REVISION($Revision: 1.779 $)
 AC_INIT(ncurses/base/lib_initscr.c)
 AC_CONFIG_HEADER(include/ncurses_cfg.h:include/ncurses_cfg.hin)
 
@@ -61,6 +61,9 @@ CF_CFG_DEFAULTS
 ### Defaults for ncurses ABI
 CF_ABI_DEFAULTS
 
+### override ABI version, e.g., packagers
+CF_WITH_ABI_ALTERED
+
 ###    Checks for programs.
 AC_ARG_WITH(ada,
        [  --without-ada           suppress check for Ada compiler, don't build demo],
@@ -183,22 +186,6 @@ AC_ARG_WITH(progs,
        [cf_with_progs=yes])
 AC_MSG_RESULT($cf_with_progs)
 
-if test -f "$srcdir/tack/tack.h" ; then
-       if test "x$cross_compiling" = xyes ; then
-               CF_VERBOSE(ignoring tack because we are cross-compiling)
-               cf_with_tack=no
-       else
-               AC_MSG_CHECKING(if you want to build the tack program)
-               AC_ARG_WITH(tack,
-                       [  --without-tack          suppress build/install with tack program],
-                       [cf_with_tack=$withval],
-                       [cf_with_tack=$cf_with_progs])
-               AC_MSG_RESULT($cf_with_tack)
-       fi
-else
-       cf_with_tack=no
-fi
-
 AC_MSG_CHECKING(if you want to build test-programs)
 AC_ARG_WITH(tests,
        [  --without-tests         suppress build/install with test-programs],
@@ -215,7 +202,6 @@ AC_MSG_RESULT($with_curses_h)
 
 modules_to_build="ncurses"
 test "X$cf_with_progs" != Xno && modules_to_build="$modules_to_build progs"
-test "X$cf_with_tack"  != Xno && modules_to_build="$modules_to_build tack"
 modules_to_build="$modules_to_build panel menu form"
 
 AC_ARG_PROGRAM
@@ -231,7 +217,7 @@ AC_SYS_LONG_FILE_NAMES
 # of package conflict.
 cf_config_suffix=
 AC_ARG_WITH(config-suffix,
-       [  --with-config-suffix=X  suffixes ncursesXX-config file],
+       [  --with-config-suffix=X  name ncurses*X-config file with X],
        [case "x$withval" in
        (xyes|xno)
                AC_MSG_WARN(expected a value for config-suffix option)
@@ -247,9 +233,9 @@ CF_WITH_PKG_CONFIG_LIBDIR
 CF_ENABLE_PC_FILES
 if test -z "$MAKE_PC_FILES"
 then
-       AC_MSG_CHECKING(for suffix to add to pc-files)
+       AC_MSG_CHECKING(for suffix to add to pkg-config files)
 AC_ARG_WITH(pc-suffix,
-       [  --with-pc-suffix        suffixes pc-files],
+       [[  --with-pc-suffix[=XXX]  suffix pkg-config files with XXX]],
        [case "x$withval" in
        (xyes|xno)
                PC_MODULE_SUFFIX=
@@ -280,6 +266,7 @@ fi
 
 # do this after mixed-case option (tags/TAGS is not as important as tic).
 AC_PROG_MAKE_SET
+CF_MAKE_PHONY
 CF_MAKE_TAGS
 CF_MAKEFLAGS
 
@@ -293,16 +280,16 @@ CF_AR_FLAGS
 dnl Special option for use by system-builders: the install-prefix is used to
 dnl adjust the location into which the actual install is done, so that an
 dnl archive can be built without modifying the host system's configuration.
-AC_MSG_CHECKING(if you have specified an install-prefix)
+AC_MSG_CHECKING(for an installation directory prefix)
 AC_ARG_WITH(install-prefix,
-       [  --with-install-prefix   prefixes actual install-location ($DESTDIR)],
+       [  --with-install-prefix=DESTDIR use DESTDIR as installation directory prefix],
        [case "x$withval" in
        (xyes|xno)
                ;;
        (*)     DESTDIR="$withval"
                ;;
        esac])
-AC_MSG_RESULT($DESTDIR)
+AC_MSG_RESULT([${DESTDIR:-(none)}])
 AC_SUBST(DESTDIR)
 
 ###############################################################################
@@ -419,6 +406,10 @@ LIB_SUFFIX=
 AC_SUBST(LIB_SUFFIX)
 CF_PATHSEP
 
+# headers needed for checks...
+AC_CHECK_DECL(exit)
+AC_HEADER_DIRENT
+
 ###############################################################################
 
 AC_MSG_CHECKING(if you want to build a separate terminfo library)
@@ -458,7 +449,7 @@ case "$DFT_LWR_MODEL" in
 (shared)  LD_MODEL=''   ;;
 esac
 AC_SUBST(LD_MODEL)dnl          the type of link (e.g., -g or -pg)
-AC_MSG_RESULT($LD_MODEL)
+AC_MSG_RESULT([${LD_MODEL:-(none)}])
 
 case "$DFT_LWR_MODEL" in
 (shared)
@@ -571,10 +562,10 @@ AC_SUBST(EXTRA_PKG_LDFLAGS)
 CF_HELP_MESSAGE(Fine-Tuning Your Configuration:)
 
 ###    use option --with-extra-suffix to append suffix to headers and libraries
-AC_MSG_CHECKING(if you wish to append extra suffix to header/library paths)
+AC_MSG_CHECKING(for extra suffix to append to header/library paths)
 EXTRA_SUFFIX=
 AC_ARG_WITH(extra-suffix,
-       [  --with-extra-suffix=X   append extra suffix to header/library paths],
+       [[  --with-extra-suffix[=X] append extra suffix X to header/library paths]],
        [case x$withval in
        (xno)
                ;;
@@ -586,7 +577,7 @@ AC_ARG_WITH(extra-suffix,
                ;;
        esac
        ])
-AC_MSG_RESULT($EXTRA_SUFFIX)
+AC_MSG_RESULT([${EXTRA_SUFFIX:-(none)}])
 AC_SUBST(EXTRA_SUFFIX)
 
 ###    use option --disable-overwrite to leave out the link to -lcurses
@@ -634,12 +625,12 @@ else
 fi
 AC_SUBST(NCURSES_USE_DATABASE)
 
-AC_MSG_CHECKING(for list of fallback descriptions)
+AC_MSG_CHECKING(for list of fallback terminal descriptions)
 AC_ARG_WITH(fallbacks,
        [  --with-fallbacks=XXX    specify list of fallback terminal descriptions],
        [with_fallback=$withval],
        [with_fallback=])
-AC_MSG_RESULT($with_fallback)
+AC_MSG_RESULT([${with_fallback:-(none)}])
 
 case ".$with_fallback" in
 (.|.no)
@@ -692,11 +683,20 @@ AC_MSG_RESULT($with_xterm_new)
 WHICH_XTERM=$with_xterm_new
 AC_SUBST(WHICH_XTERM)
 
+case $host_os in
+(*linux-gnu|*cygwin|*mingw32|*msys)
+       want_xterm_kbs=DEL
+       ;;
+(*)
+       want_xterm_kbs=BS
+       ;;
+esac
+
 AC_MSG_CHECKING(if xterm backspace sends BS or DEL)
 AC_ARG_WITH(xterm-kbs,
-       [  --with-xterm-kbs=XXX    specify if xterm backspace sends BS or DEL],
+       [[  --with-xterm-kbs[=XXX]  specify if xterm backspace sends BS or DEL]],
        [with_xterm_kbs=$withval],
-       [with_xterm_kbs=BS])
+       [with_xterm_kbs=auto])
 case x$with_xterm_kbs in
 (xyes|xno|xBS|xbs|x8)
        with_xterm_kbs=BS
@@ -704,6 +704,9 @@ case x$with_xterm_kbs in
 (xDEL|xdel|x127)
        with_xterm_kbs=DEL
        ;;
+(xauto)
+       with_xterm_kbs=$want_xterm_kbs
+       ;;
 (*)
        with_xterm_kbs=$withval
        ;;
@@ -712,6 +715,11 @@ AC_MSG_RESULT($with_xterm_kbs)
 XTERM_KBS=$with_xterm_kbs
 AC_SUBST(XTERM_KBS)
 
+if test "x$with_xterm_kbs" != "x$want_xterm_kbs"
+then
+       AC_MSG_WARN([expected --with-xterm-kbs=$want_xterm_kbs for $host_os, have $with_xterm_kbs])
+fi
+
 MAKE_TERMINFO=
 if test "$use_database" = no ; then
        TERMINFO="${datadir}/terminfo"
@@ -757,7 +765,7 @@ AC_ARG_ENABLE(big-core,
        [AC_TRY_RUN([
 #include <stdlib.h>
 #include <string.h>
-int main() {
+int main(void) {
        unsigned long n = 6000000L;
        char *s = malloc(n);
        if (s != 0)
@@ -850,16 +858,24 @@ AC_ARG_ENABLE(root-environ,
        [with_root_environ=$enableval],
        [with_root_environ=yes])
 AC_MSG_RESULT($with_root_environ)
-test "x$with_root_environ" = xyes && AC_DEFINE(USE_ROOT_ENVIRON,1,[Define to 1 if root is allowed to use ncurses environment])
+test "x$with_root_environ" = xyes && AC_DEFINE(USE_ROOT_ENVIRON,1,[Define to 1 if root/setuid application is allowed to use ncurses environment])
 
 AC_MSG_CHECKING(if you want to permit setuid programs to access all files)
-AC_ARG_ENABLE(root-environ,
+AC_ARG_ENABLE(root-access,
        [  --disable-root-access   restrict file-access when running setuid],
        [with_root_access=$enableval],
        [with_root_access=yes])
 AC_MSG_RESULT($with_root_access)
 test "x$with_root_access" = xyes && AC_DEFINE(USE_ROOT_ACCESS,1,[Define to 1 if setuid is allowed all file-access])
 
+AC_MSG_CHECKING(if you want to permit setuid use of ncurses environment variables)
+AC_ARG_ENABLE(setuid-environ,
+       [  --disable-setuid-environ restrict setuid use of ncurses environment variables],
+       [with_setuid_environ=$enableval],
+       [with_setuid_environ=$with_root_environ])
+AC_MSG_RESULT($with_setuid_environ)
+test "x$with_setuid_environ" = xyes && AC_DEFINE(USE_SETUID_ENVIRON,1,[Define to 1 if setuid/setgid application is allowed to use ncurses environment])
+
 ###   Use option --enable-symlinks to make tic use symlinks, not hard links
 ###   to reduce storage requirements for the terminfo database.
 CF_LINK_FUNCS
@@ -931,9 +947,9 @@ NCURSES_OK_WINT_T=
 
 AC_MSG_CHECKING(if you want wide-character code)
 AC_ARG_ENABLE(widec,
-       [  --enable-widec          compile with wide-char/UTF-8 code],
+       [  --disable-widec         compile without wide character and UTF-8 support],
        [with_widec=$enableval],
-       [with_widec=no])
+       [with_widec=$cf_dft_widec])
 AC_MSG_RESULT($with_widec)
 
 NCURSES_WCWIDTH_GRAPHICS=1
@@ -943,8 +959,17 @@ if test "x$with_widec" = xyes ; then
        if test "x$disable_lib_suffixes" = xno ; then
                LIB_SUFFIX="w${LIB_SUFFIX}"
        fi
-       AC_DEFINE(USE_WIDEC_SUPPORT,1,[Define to 1 to compile with wide-char/UTF-8 code])
-       AC_DEFINE(NCURSES_WIDECHAR,1,[Define to 1 to compile with wide-char/UTF-8 code])
+       AC_DEFINE(USE_WIDEC_SUPPORT,1,[Define to 1 to compile with wide character and UTF-8 support])
+       AC_DEFINE(NCURSES_WIDECHAR,1,[Define to 1 to compile with wide character and UTF-8 support])
+       case "$CPPFLAGS" in
+       (*_XOPEN_SOURCE=*)
+               ;;
+       (*)
+               AC_MSG_WARN(_XOPEN_SOURCE feature test macro appears to be predefined)
+               # CPPFLAGS="$CPPFLAGS -DNCURSES_WIDECHAR"
+               CPPFLAGS_after_XOPEN="$CPPFLAGS_after_XOPEN -DNCURSES_WIDECHAR"
+               ;;
+       esac
 
        CF_CHECK_WCHAR_H
        CF_CHECK_WCWIDTH_GRAPHICS
@@ -952,7 +977,7 @@ if test "x$with_widec" = xyes ; then
 
        # with_overwrite=no
        NCURSES_CH_T=cchar_t
-       AC_CHECK_FUNCS(putwc btowc wctob mbtowc wctomb mblen mbrlen mbrtowc wcsrtombs mbsrtowcs wcstombs mbstowcs)
+       AC_CHECK_FUNCS(putwc btowc wctob wmemchr mbtowc wctomb mblen mbrlen mbrtowc wcsrtombs mbsrtowcs wcstombs mbstowcs)
        if test "x$ac_cv_func_putwc" != xyes ; then
                CF_UTF8_LIB
                if test "$cf_cv_utf8_lib" != no ; then
@@ -1018,72 +1043,66 @@ else
        with_tic_depends=no
 fi
 
-###   use option --disable-wattr-macros to suppress wattr* macros from curses.h
-AC_MSG_CHECKING(if you want to suppress wattr* macros to help with ncurses5/ncurses6 transition)
+###   use option --enable-wattr-macros to enable wattr* macros in curses.h
+AC_MSG_CHECKING(if you want to enable wattr* macros)
 AC_ARG_ENABLE(wattr-macros,
-       [  --disable-wattr-macros  suppress wattr* macros to help with ncurses5/ncurses6 transition],
+       [  --enable-wattr-macros   enable wattr* macros],
        [with_wattr_macros=$enableval],
-       [with_wattr_macros=yes])
+       [with_wattr_macros=no])
 if [[ "x$with_wattr_macros" != xyes ]]; then
        NCURSES_WATTR_MACROS=0
-       AC_MSG_RESULT(yes)
+       AC_MSG_RESULT(no)
 else
        NCURSES_WATTR_MACROS=1
-       AC_MSG_RESULT(no)
+       AC_MSG_RESULT(yes)
 fi
 AC_SUBST(NCURSES_WATTR_MACROS)
 
 CF_WITH_X11_RGB
 
 ###   use option --with-bool to override bool's type
-AC_MSG_CHECKING(for type of bool)
-AC_ARG_WITH(bool,
-       [  --with-bool=TYPE        override fallback type of bool variable],
-       [NCURSES_BOOL="$withval"],
-       [NCURSES_BOOL=auto])
-AC_MSG_RESULT($NCURSES_BOOL)
-AC_SUBST(NCURSES_BOOL)
+CF_WITH_TYPE(bool,
+       [  --with-bool=TYPE        fall back to TYPE for curses 'bool' typedef],
+       NCURSES_BOOL,
+       auto)
 
 AC_MSG_CHECKING(for alternate terminal capabilities file)
 AC_ARG_WITH(caps,
        [  --with-caps=alt         compile with alternate Caps file],
        [TERMINFO_CAPS=Caps.$withval],
        [TERMINFO_CAPS=Caps])
-test -f "${srcdir}/include/${TERMINFO_CAPS}" || TERMINFO_CAPS=Caps
+if test ! -f "${srcdir}/include/${TERMINFO_CAPS}"
+then
+       AC_MSG_WARN(file not found: "${srcdir}/include/${TERMINFO_CAPS}")
+       TERMINFO_CAPS=Caps
+fi
 AC_MSG_RESULT($TERMINFO_CAPS)
 AC_SUBST(TERMINFO_CAPS)
 
 ###   use option --with-chtype to override chtype's type
-AC_MSG_CHECKING(for type of chtype)
-AC_ARG_WITH(chtype,
+CF_WITH_TYPE(chtype,
        [  --with-chtype=TYPE      override type of chtype],
-       [NCURSES_CHTYPE="$withval"],
-       [NCURSES_CHTYPE=$cf_dft_chtype])
-AC_MSG_RESULT($NCURSES_CHTYPE)
+       NCURSES_CHTYPE,
+       $cf_dft_chtype)
 
 ###   use option --with-ospeed to override ospeed's type
-AC_MSG_CHECKING(for type of ospeed)
-AC_ARG_WITH(ospeed,
+CF_WITH_TYPE(ospeed,
        [  --with-ospeed=TYPE      override type of ospeed variable],
-       [NCURSES_OSPEED="$withval"],
-       [NCURSES_OSPEED=short])
-AC_MSG_RESULT($NCURSES_OSPEED)
-AC_SUBST(NCURSES_OSPEED)
+       NCURSES_OSPEED,
+       short)
 
 ###   use option --with-mmask-t to override mmask_t's type
-AC_MSG_CHECKING(for type of mmask_t)
-AC_ARG_WITH(mmask-t,
+CF_WITH_TYPE(mmask-t,
        [  --with-mmask-t=TYPE     override type of mmask_t],
-       [NCURSES_MMASK_T="$withval"],
-       [NCURSES_MMASK_T=$cf_dft_mmask_t])
-AC_MSG_RESULT($NCURSES_MMASK_T)
+       NCURSES_MMASK_T,
+       $cf_dft_mmask_t)
 
 ###   use option --with-ccharw-max to override CCHARW_MAX size
 AC_MSG_CHECKING(for size CCHARW_MAX)
 AC_ARG_WITH(ccharw-max,
        [  --with-ccharw-max=XXX   override size CCHARW_MAX],
        [NCURSES_CCHARW_MAX="$withval"],
-       [NCURSES_CCHARW_MAX=5])
+       [NCURSES_CCHARW_MAX=$cf_dft_ccharw_max])
 AC_MSG_RESULT($NCURSES_CCHARW_MAX)
 AC_SUBST(NCURSES_CCHARW_MAX)
 
@@ -1093,23 +1112,20 @@ if test "$ac_cv_sizeof_signed_char" = 1 ; then
 else
        NCURSES_SBOOL="char"
 fi
-AC_MSG_CHECKING(if you want to use signed Boolean array in term.h)
+AC_MSG_CHECKING(whether to use signed chars for Boolean array in term.h)
 AC_ARG_ENABLE(signed-char,
-       [  --enable-signed-char    compile using signed Boolean's in term.h],
+       [  --enable-signed-char    use signed chars for Boolean array in term.h],
        [with_signed_char=$enableval],
-       [with_signed_char=no])
+       [with_signed_char=$cf_dft_signed_char])
 AC_MSG_RESULT($with_signed_char)
 test "x$with_signed_char" != xyes && NCURSES_SBOOL="char"
 AC_SUBST(NCURSES_SBOOL)
 
 ###   use option --with-tparm-arg to override tparm's argument type
-AC_MSG_CHECKING(for type of tparm args)
-AC_ARG_WITH(tparm-arg,
+CF_WITH_TYPE(tparm-arg,
        [  --with-tparm-arg=TYPE   override parameter type of tparm],
-       [NCURSES_TPARM_ARG="$withval"],
-       [NCURSES_TPARM_ARG=$cf_dft_tparm_arg])
-AC_MSG_RESULT($NCURSES_TPARM_ARG)
-AC_SUBST(NCURSES_TPARM_ARG)
+       NCURSES_TPARM_ARG,
+       $cf_dft_tparm_arg)
 
 ### Enable compiling-in rcs id's
 AC_MSG_CHECKING(if RCS identifiers should be compiled-in)
@@ -1143,7 +1159,6 @@ if test "x$with_ext_funcs" = xyes ; then
        AC_DEFINE(HAVE_RESIZE_TERM,1,[Define to 1 to enable resize_term() function in test-programs])
        AC_DEFINE(HAVE_TERM_ENTRY_H,1,[Define to 1 to enable term_entry() function in test-programs])
        AC_DEFINE(HAVE_USE_DEFAULT_COLORS,1,[Define to 1 to enable use_default_colors() function in test-programs])
-       AC_DEFINE(HAVE_USE_EXTENDED_NAMES,1,[Define to 1 to enable use_extended_names() function in test-programs])
        AC_DEFINE(HAVE_USE_SCREEN,1,[Define to 1 to enable use_screen() function in test-programs])
        AC_DEFINE(HAVE_USE_WINDOW,1,[Define to 1 to enable use_window() function in test-programs])
        AC_DEFINE(HAVE_WRESIZE,1,[Define to 1 to enable wresize() function in test-programs])
@@ -1233,11 +1248,18 @@ AC_ARG_ENABLE(ext-mouse,
        [with_ext_mouse=$enableval],
        [with_ext_mouse=$cf_dft_ext_mouse])
 AC_MSG_RESULT($with_ext_mouse)
-NCURSES_MOUSE_VERSION=1
 if test "x$with_ext_mouse" = xyes ; then
-       NCURSES_MOUSE_VERSION=2
        CF_NCURSES_ABI_6
 fi
+
+if test $cf_cv_abi_default -le 5 ; then
+       NCURSES_MOUSE_VERSION=1
+elif test $cf_cv_abi_default -le 6 ; then
+       NCURSES_MOUSE_VERSION=2
+else
+       NCURSES_MOUSE_VERSION=3
+fi
+
 AC_SUBST(NCURSES_MOUSE_VERSION)
 
 ###   use option --enable-ext-putwin to turn on extended screendumps
@@ -1266,7 +1288,14 @@ AC_ARG_ENABLE(sigwinch,
        [with_sigwinch=$enableval],
        [with_sigwinch=$with_ext_funcs])
 AC_MSG_RESULT($with_sigwinch)
-test "x$with_sigwinch" = xyes && AC_DEFINE(USE_SIGWINCH,1,[Define to 1 to compile with SIGWINCH handler])
+if test "x$with_sigwinch" = xyes
+then
+       AC_DEFINE(USE_SIGWINCH,1,[Define to 1 to compile with SIGWINCH handler])
+       cf_cv_enable_sigwinch=1
+else
+       cf_cv_enable_sigwinch=0
+fi
+AC_SUBST(cf_cv_enable_sigwinch)
 
 ###   use option --enable-tcap-names to allow user to define new capabilities
 AC_MSG_CHECKING(if you want user-definable terminal capabilities like termcap)
@@ -1276,7 +1305,10 @@ AC_ARG_ENABLE(tcap-names,
        [with_tcap_names=$with_ext_funcs])
 AC_MSG_RESULT($with_tcap_names)
 NCURSES_XNAMES=0
-test "x$with_tcap_names" = xyes && NCURSES_XNAMES=1
+if test "x$with_tcap_names" = xyes; then
+       NCURSES_XNAMES=1
+       AC_DEFINE(NCURSES_XNAMES,1,[Define to 1 to compile with user-definable terminal capabilities])
+fi
 AC_SUBST(NCURSES_XNAMES)
 
 ##############################################################################
@@ -1366,19 +1398,19 @@ if test "x$with_reentrant" = xyes ; then
 else
        cf_cv_enable_reentrant=0
        cf_cv_enable_opaque="NCURSES_OPAQUE"
-       NCURSES_SIZE_T=short
+       NCURSES_SIZE_T=$cf_dft_ordinate_type
 fi
 AC_SUBST(cf_cv_enable_reentrant)
 AC_SUBST(cf_cv_enable_opaque)
 
 AC_SUBST(NCURSES_SIZE_T)
 
-AC_MSG_CHECKING(if you want opaque curses-library structures)
-CF_ARG_ENABLE(opaque-curses,
-       [  --enable-opaque-curses  make curses WINDOW, etc., "opaque"],
-       [enable_opaque_curses=yes],[
+AC_MSG_CHECKING(whether curses library structures should be opaque)
+CF_ARG_DISABLE(opaque-curses,
+       [  --disable-opaque-curses do not make WINDOW, etc., structures opaque],
+       [enable_opaque_curses=no],[
         test "$cf_cv_enable_reentrant" = 1 && enable_opaque_curses=yes
-        test "$cf_cv_enable_reentrant" = 1 || enable_opaque_curses=no
+        test "$cf_cv_enable_reentrant" = 1 || enable_opaque_curses=$cf_dft_opaque_curses
        ])
 AC_MSG_RESULT($enable_opaque_curses)
 
@@ -1386,22 +1418,22 @@ test "$cf_cv_enable_reentrant" = 1 && \
 test "$enable_opaque_curses" = no && \
 AC_MSG_ERROR(reentrant configuration requires opaque library)
 
-AC_MSG_CHECKING(if you want opaque form-library structures)
-AC_ARG_ENABLE(opaque-form,
-       [  --enable-opaque-form    make form-library structures "opaque"],
-       [enable_opaque_form=yes],[enable_opaque_form=no])
+AC_MSG_CHECKING(whether form library structures should be opaque)
+CF_ARG_DISABLE(opaque-form,
+       [  --disable-opaque-form   do not make form library structures opaque],
+       [enable_opaque_form=no],[enable_opaque_form=$cf_dft_opaque_curses])
 AC_MSG_RESULT($enable_opaque_form)
 
-AC_MSG_CHECKING(if you want opaque menu-library structures)
-AC_ARG_ENABLE(opaque-menu,
-       [  --enable-opaque-menu    make menu-library structures "opaque"],
-       [enable_opaque_menu=yes],[enable_opaque_menu=no])
+AC_MSG_CHECKING(whether menu library structures should be opaque)
+CF_ARG_DISABLE(opaque-menu,
+       [  --disable-opaque-menu   do not make menu library structures opaque],
+       [enable_opaque_menu=no],[enable_opaque_menu=$cf_dft_opaque_curses])
 AC_MSG_RESULT($enable_opaque_menu)
 
-AC_MSG_CHECKING(if you want opaque panel-library structures)
-AC_ARG_ENABLE(opaque-panel,
-       [  --enable-opaque-panel   make panel-library structures "opaque"],
-       [enable_opaque_panel=yes],[enable_opaque_panel=no])
+AC_MSG_CHECKING(whether panel library structures should be opaque)
+CF_ARG_DISABLE(opaque-panel,
+       [  --disable-opaque-panel  do not make panel library structures opaque],
+       [enable_opaque_panel=no],[enable_opaque_panel=$cf_dft_opaque_curses])
 AC_MSG_RESULT($enable_opaque_panel)
 
 NCURSES_OPAQUE=0;              test "$enable_opaque_curses" = yes && NCURSES_OPAQUE=1
@@ -1438,6 +1470,14 @@ AC_ARG_WITH(develop,
        [with_develop=no])
 AC_MSG_RESULT($with_develop)
 
+###   use option --enable-check-size to detect screensize with CPR
+AC_MSG_CHECKING(if you want to check screensize of serial terminals)
+AC_ARG_ENABLE(check-size,
+       [  --enable-check-size     compile-in code to detect screensize of serial terminals],,
+       [enable_check_size=$with_develop])
+AC_MSG_RESULT($enable_check_size)
+test "x$enable_check_size" = xyes && AC_DEFINE(USE_CHECK_SIZE,1,[Define to 1 to compile-in code to detect screensize])
+
 ###   use option --enable-hard-tabs to turn on use of hard-tabs optimize
 AC_MSG_CHECKING(if you want hard-tabs code)
 AC_ARG_ENABLE(hard-tabs,
@@ -1624,7 +1664,7 @@ AC_SUBST(INSTALL_OPT_P)
 CF_ENABLE_WARNINGS(Wno-unknown-pragmas Wswitch-enum,yes)
 
 if test "x$enable_warnings" = "xyes"; then
-       CF_ADD_ADAFLAGS(-gnatg)
+       CF_ADD_ADAFLAGS(-gnatwa -gnatyg)
        if test "x$cf_with_cxx" = xyes ; then
                CF_GXX_WARNINGS(Wno-unused)
        fi
@@ -1695,20 +1735,15 @@ CF_DISABLE_GNAT_PROJECTS
 ###    Checks for libraries.
 case "$cf_cv_system_name" in
 (*mingw32*|*mingw64*)
+       # Note: WINVER may be a problem with Windows 10
        if test "x$with_exp_win32" = xyes ; then
-       CPPFLAGS="$CPPFLAGS -DWINVER=0x0600 -DWIN32_LEAN_AND_MEAN"
+               CPPFLAGS="$CPPFLAGS -DWINVER=0x0600 -DWIN32_LEAN_AND_MEAN"
        else
-       CPPFLAGS="$CPPFLAGS -DWINVER=0x0501 -DWIN32_LEAN_AND_MEAN"
+               CPPFLAGS="$CPPFLAGS -DWINVER=0x0501 -DWIN32_LEAN_AND_MEAN"
        fi
-       # Note: WINVER may be a problem with Windows 10
+       CF_CHECK_LIBSSP
        ;;
 (*)
-AC_CHECK_FUNC(gettimeofday,
-       AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function]),[
-
-AC_CHECK_LIB(bsd, gettimeofday,
-       AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function])
-       CF_ADD_LIB(bsd))])dnl CLIX: bzero, select, gettimeofday
        ;;
 esac
 
@@ -1716,8 +1751,6 @@ CF_MATH_LIB(MATH_LIB,pow(sin(x),x))
 AC_SUBST(MATH_LIB)
 
 ###    Checks for header files.
-AC_STDC_HEADERS
-AC_HEADER_DIRENT
 AC_HEADER_TIME
 CF_REGEX
 
@@ -1729,13 +1762,13 @@ limits.h \
 locale.h \
 math.h \
 poll.h \
+sys/auxv.h \
 sys/ioctl.h \
 sys/param.h \
 sys/poll.h \
 sys/select.h \
 sys/time.h \
 sys/times.h \
-ttyent.h \
 unistd.h \
 wctype.h \
 )
@@ -1785,21 +1818,22 @@ CF_ERRNO
 CF_LINK_DATAONLY
 
 ###    Checks for library functions.
+CF_FUNC_GETTIME
 AC_CHECK_FUNCS( \
+fpathconf \
 getcwd \
+getauxval \
 getegid \
 geteuid \
 getopt \
-getttynam \
+getuid \
 issetugid \
 localeconv \
 poll \
-putenv \
 remove \
 select \
 setbuf \
 setbuffer \
-setenv \
 setfsuid \
 setvbuf \
 sigaction \
@@ -1814,6 +1848,8 @@ tsearch \
 vsnprintf \
 )
 
+CF_FUNC_GETTTYNAM
+
 if test "x$ac_cv_func_getopt" = xno && \
    test "x$cf_with_progs$cf_with_tests" != xnono; then
        AC_MSG_ERROR(getopt is required for building programs)
@@ -1855,6 +1891,7 @@ CF_TYPE_SIGACTION
 CF_SIZECHANGE
 CF_FUNC_MEMMOVE
 CF_FUNC_POLL
+CF_MB_LEN_MAX
 CF_VA_COPY
 AC_FUNC_VFORK
 CF_FOPEN_BIN_R
@@ -1908,6 +1945,7 @@ if test -n "$CXX" ; then
        CF_BOOL_DECL
        CF_BOOL_SIZE
        CF_ETIP_DEFINES
+       CF_CPP_OVERRIDE
        CF_CPP_PARAM_INIT
        CF_CPP_STATIC_CAST
        CF_CXX_AR_FLAGS
@@ -2302,14 +2340,11 @@ AC_SUBST(TICS_LIST)
 AC_SUBST(TINFO_LIST)
 AC_SUBST(SHLIB_LIST)
 
-# used to separate tack out of the tree
-NCURSES_TREE=
-AC_SUBST(NCURSES_TREE)
-
 ### predefined stuff for the test programs
 AC_DEFINE(HAVE_SLK_COLOR,1,[Define to 1 if we have slk_color for test-programs])
 
 # pkgsrc uses these
+CF_HELP_MESSAGE(Library basenames for pkgsrc:)
 CF_WITH_LIB_BASENAME(FORM_NAME,form)
 CF_WITH_LIB_BASENAME(MENU_NAME,menu)
 CF_WITH_LIB_BASENAME(PANEL_NAME,panel)
@@ -2391,7 +2426,7 @@ esac
 
 # Help to automatically enable the extended curses features when using either
 # the *-config or the ".pc" files by adding defines.
-AC_MSG_CHECKING(for defines to add to ncurses${USE_CFG_SUFFIX}-config script)
+AC_MSG_CHECKING(for defines to add to ncurses${USE_CFG_SUFFIX}${cf_config_suffix}-config script)
 PKG_CFLAGS=
 for cf_loop1 in $CPPFLAGS_after_XOPEN
 do
@@ -2466,7 +2501,7 @@ cf_filter_syms=no
 if test -n "$RESULTING_SYMS"
 then
        cf_filter_syms=$cf_dft_filter_syms
-       CF_VERBOSE(will map symbols to ABI=$cf_cv_abi_version)
+       CF_VERBOSE(will map symbols to ABI=$cf_cv_abi_default)
 fi
 
 if test "x$WILDCARD_SYMS" = xno
@@ -2497,20 +2532,20 @@ AC_SUBST(PRIVATE_LIBS)
 # This is used for the *-config script and *.pc data files.
 CF_LD_SEARCHPATH
 
-AC_DEFINE(HAVE_CURSES_DATA_BOOLNAMES,1,[definition needed for in-tree build of tack])
-
 AC_OUTPUT( \
        include/MKterm.h.awk \
        include/curses.head:include/curses.h.in \
        include/ncurses_dll.h \
        include/termcap.h \
        include/unctrl.h \
+       man/man_db.renames \
        $SUB_MAKEFILES \
        Makefile,[
 if test "x$cf_with_tests" != xno ; then
        CF_PRG_RULES(["$srcdir/test/mk-test.awk" INSTALL=no ECHO_LINK="$ECHO_LD"], test)
 fi
 CF_LIB_RULES($SRC_SUBDIRS)
+CF_OUTPUT_MANPAGE_RENAMES
 
 if test "x$cf_with_ada" = "xyes" && test "x$cf_cv_prog_gnat_correct" = "xyes"; then
 if test -z "$USE_OLD_MAKERULES" ; then
@@ -2538,6 +2573,7 @@ LIB_SUFFIX="$LIB_SUFFIX"
 LIB_TRACING="$LIB_TRACING"
 LN_S="$LN_S"
 MAKE_TERMINFO="$MAKE_TERMINFO"
+MANPAGE_RENAMES="$MANPAGE_RENAMES"
 MENU_NAME="$MENU_NAME"
 NCURSES_MAJOR="$NCURSES_MAJOR"
 NCURSES_MINOR="$NCURSES_MINOR"
@@ -2567,12 +2603,14 @@ WITH_OVERWRITE="$with_overwrite"
 cf_LIST_MODELS="$cf_list_models"
 cf_cv_VERSION_GNATMAKE=$cf_cv_VERSION_GNATMAKE
 cf_cv_VERSION_GPRBUILD=$cf_cv_VERSION_GPRBUILD
+cf_cv_abi_default="$cf_cv_abi_default"
 cf_cv_abi_version="$cf_cv_abi_version"
 cf_cv_do_relink="$cf_cv_do_relink"
 cf_cv_do_reranlib="$cf_cv_do_reranlib"
 cf_cv_do_symlinks="$cf_cv_do_symlinks"
 cf_cv_enable_lp64="$cf_cv_enable_lp64"
 cf_cv_enable_opaque="$cf_cv_enable_opaque"
+cf_cv_make_PHONY="$cf_cv_make_PHONY"
 cf_cv_prog_CC_c_o=$cf_cv_prog_CC_c_o
 cf_cv_prog_CXX_c_o=$cf_cv_prog_CXX_c_o
 cf_cv_prog_gnat_correct=$cf_cv_prog_gnat_correct
@@ -2590,6 +2628,7 @@ cf_with_manpages="$cf_with_manpages"
 cf_with_tests="$cf_with_tests"
 host="$host"
 target="$target"
+verbose="$verbose"
 with_shared_cxx="$with_shared_cxx"
 
 ],cat)dnl