patch 9.0.1793: obsolete macros in configure script

Problem:  obsolete macros in configure script
Solution: Remove those and start moving to autoconf 2.71

src/configure.ac: Remove obsolete macros

These macros are declared obsolete in autoconf 2.69, which is almost 10
years old by now:

  https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html

They generate warnings when in a subsequent upgrade to autoconf 2.71.

`autoupdate` from autoupdate 2.71 suggests most of these changes, except
that it also adds obsolete warnings, that where individually checked and
removed.

Regenerated `src/auto/configure` by running:

  cd src
  autoconf2.69 --output=auto/configure configure.ac
  sed --in-place --expression='s@>config.log@>auto/config.log@g' auto/configure

closes: #12888

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Illia Bobyr <illia.bobyr@gmail.com>

src/auto/configure

@@ -619,6 +619,7 @@ ac_includes_default="\
 # include <unistd.h>
 #endif"
 
+ac_header_list=
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
 LINK_AS_NEEDED
@@ -763,6 +764,7 @@ infodir
 docdir
 oldincludedir
 includedir
+runstatedir
 localstatedir
 sharedstatedir
 sysconfdir
@@ -899,6 +901,7 @@ datadir='${datarootdir}'
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
 docdir='${datarootdir}/doc/${PACKAGE}'
@@ -1151,6 +1154,15 @@ do
   | -silent | --silent | --silen | --sile | --sil)
     silent=yes ;;
 
+  -runstatedir | --runstatedir | --runstatedi | --runstated \
+  | --runstate | --runstat | --runsta | --runst | --runs \
+  | --run | --ru | --r)
+    ac_prev=runstatedir ;;
+  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+  | --run=* | --ru=* | --r=*)
+    runstatedir=$ac_optarg ;;
+
   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1288,7 +1300,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-		libdir localedir mandir
+		libdir localedir mandir runstatedir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1441,6 +1453,7 @@ Fine tuning of the installation directories:
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -1710,6 +1723,48 @@ fi
 
 } # ac_fn_c_try_cpp
 
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
 # ac_fn_c_try_link LINENO
 # -----------------------
 # Try to link conftest.$ac_ext, and return whether this succeeded.
@@ -1756,48 +1811,6 @@ fi
 
 } # ac_fn_c_try_link
 
-# ac_fn_c_try_run LINENO
-# ----------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
-# that executables *can* be run.
-ac_fn_c_try_run ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if { { ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
-  { { case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then :
-  ac_retval=0
-else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-       $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-       ac_retval=$ac_status
-fi
-  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_run
-
 # ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
 # -------------------------------------------------------
 # Tests whether HEADER exists, giving a warning if it cannot be compiled using
@@ -2557,6 +2570,7 @@ $as_echo "$as_me: creating cache $cache_file" >&6;}
   >$cache_file
 fi
 
+as_fn_append ac_header_list " sys/time.h"
 # Check that the precious variables saved in the cache have kept the same
 # value.
 ac_cache_corrupted=false
@@ -2625,6 +2639,7 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
+
 ac_config_headers="$ac_config_headers auto/config.h:config.h.in"
 
 
@@ -3763,9 +3778,7 @@ ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
 $as_echo_n "checking for grep that handles long lines and -e... " >&6; }
 if ${ac_cv_path_GREP+:} false; then :
   $as_echo_n "(cached) " >&6
@@ -3894,17 +3907,7 @@ fi
 $as_echo "$ac_cv_path_EGREP" >&6; }
  EGREP="$ac_cv_path_EGREP"
 
-
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "" >/dev/null 2>&1; then :
-
-fi
-rm -f conftest*
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
 $as_echo_n "checking for fgrep... " >&6; }
 if ${ac_cv_path_FGREP+:} false; then :
   $as_echo_n "(cached) " >&6
@@ -3970,61 +3973,6 @@ fi
 $as_echo "$ac_cv_path_FGREP" >&6; }
  FGREP="$ac_cv_path_FGREP"
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing strerror" >&5
-$as_echo_n "checking for library containing strerror... " >&6; }
-if ${ac_cv_search_strerror+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_func_search_save_LIBS=$LIBS
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char strerror ();
-int
-main ()
-{
-return strerror ();
-  ;
-  return 0;
-}
-_ACEOF
-for ac_lib in '' cposix; do
-  if test -z "$ac_lib"; then
-    ac_res="none required"
-  else
-    ac_res=-l$ac_lib
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
-  fi
-  if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_search_strerror=$ac_res
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext
-  if ${ac_cv_search_strerror+:} false; then :
-  break
-fi
-done
-if ${ac_cv_search_strerror+:} false; then :
-
-else
-  ac_cv_search_strerror=no
-fi
-rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_strerror" >&5
-$as_echo "$ac_cv_search_strerror" >&6; }
-ac_res=$ac_cv_search_strerror
-if test "$ac_res" != no; then :
-  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-
-fi
 		for ac_prog in gawk mawk nawk awk
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
@@ -4108,6 +4056,8 @@ fi
 
 
 
+
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
 $as_echo_n "checking for ANSI C header files... " >&6; }
 if ${ac_cv_header_stdc+:} false; then :
@@ -11495,41 +11445,27 @@ _ACEOF
   esac
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether time.h and sys/time.h may both be included" >&5
-$as_echo_n "checking whether time.h and sys/time.h may both be included... " >&6; }
-if ${ac_cv_header_time+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <sys/time.h>
-#include <time.h>
 
-int
+
-main ()
+
-{
+  for ac_header in $ac_header_list
-if ((struct tm *) 0)
+do :
-return 0;
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-  ;
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
-  return 0;
+"
-}
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_time=yes
-else
-  ac_cv_header_time=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_time" >&5
-$as_echo "$ac_cv_header_time" >&6; }
-if test $ac_cv_header_time = yes; then
-
-$as_echo "#define TIME_WITH_SYS_TIME 1" >>confdefs.h
 
 fi
 
+done
+
+
+
+
+
 ac_fn_c_check_type "$LINENO" "ino_t" "ac_cv_type_ino_t" "$ac_includes_default"
 if test "x$ac_cv_type_ino_t" = xyes; then :
 
@@ -12374,7 +12310,6 @@ $as_echo "no" >&6; }
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for /dev/ptc" >&5
 $as_echo_n "checking for /dev/ptc... " >&6; }
 if test -r /dev/ptc; then
@@ -12746,7 +12681,7 @@ else
     We can't simply define LARGE_OFF_T to be 9223372036854775807,
     since some C++ compilers masquerading as C compilers
     incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
 		       && LARGE_OFF_T % 2147483647 == 1)
 		      ? 1 : -1];
@@ -12792,7 +12727,7 @@ else
     We can't simply define LARGE_OFF_T to be 9223372036854775807,
     since some C++ compilers masquerading as C compilers
     incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
 		       && LARGE_OFF_T % 2147483647 == 1)
 		      ? 1 : -1];
@@ -12816,7 +12751,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     We can't simply define LARGE_OFF_T to be 9223372036854775807,
     since some C++ compilers masquerading as C compilers
     incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
 		       && LARGE_OFF_T % 2147483647 == 1)
 		      ? 1 : -1];
@@ -12861,7 +12796,7 @@ else
     We can't simply define LARGE_OFF_T to be 9223372036854775807,
     since some C++ compilers masquerading as C compilers
     incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
 		       && LARGE_OFF_T % 2147483647 == 1)
 		      ? 1 : -1];
@@ -12885,7 +12820,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     We can't simply define LARGE_OFF_T to be 9223372036854775807,
     since some C++ compilers masquerading as C compilers
     incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
 		       && LARGE_OFF_T % 2147483647 == 1)
 		      ? 1 : -1];

src/configure.ac

@@ -4,7 +4,8 @@ dnl Process this file with autoconf 2.69 to produce "configure".
 dnl This should also work with other versions of autoconf, but 2.70 and later
 dnl generate lots of hard to fix "obsolete" warnings.
 
-AC_INIT(vim.h)
+AC_INIT
+AC_CONFIG_SRCDIR([vim.h])
 AC_CONFIG_HEADERS(auto/config.h:config.h.in)
 
 dnl Being able to run configure means the system is Unix (compatible).
@@ -14,9 +15,8 @@ AC_PROG_MAKE_SET
 dnl Checks for programs.
 AC_PROG_CC_C99		dnl required by almost everything
 AC_PROG_CPP		dnl required by header file checks
-AC_PROGRAM_EGREP	dnl required by AC_EGREP_CPP
+AC_PROG_EGREP		dnl required by AC_EGREP_CPP
 AC_PROG_FGREP		dnl finds working grep -F
-AC_ISC_POSIX		dnl required by AC_C_CROSS
 AC_PROG_AWK		dnl required for "make html" in ../doc
 
 dnl Don't strip if we don't have it
@@ -3354,7 +3354,8 @@ AC_TYPE_SIZE_T
 AC_TYPE_UID_T
 AC_TYPE_UINT32_T
 
-AC_HEADER_TIME
+AC_CHECK_HEADERS_ONCE([sys/time.h])
+
 AC_CHECK_TYPE(ino_t, long)
 AC_CHECK_TYPE(dev_t, unsigned)
 AC_C_BIGENDIAN(,,,)
@@ -3605,8 +3606,6 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
 			AC_DEFINE(SYS_SELECT_WITH_SYS_TIME),
 	  AC_MSG_RESULT(no))
 
-dnl AC_DECL_SYS_SIGLIST
-
 dnl Checks for pty.c (copied from screen) ==========================
 AC_MSG_CHECKING(for /dev/ptc)
 if test -r /dev/ptc; then

src/version.c

@@ -699,6 +699,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1793,
 /**/
     1792,
 /**/