Patch 9.0.0103
Problem:    If running configure with cached results -lrt may be missing.
Solution:   Use two cache variables, one without and one with -lrt.
            (closes #10799)  Swap checks to avoid adding -lrt unnecessarily.
Files:      src/configure.ac, src/auto/configure


*** ../vim-9.0.0102/src/configure.ac    2022-07-28 12:09:00.601870813 +0100
--- src/configure.ac    2022-07-28 22:36:12.707783733 +0100
***************
*** 3807,3815 ****
  dnl Check for timer_create. It probably requires the 'rt' library.
  dnl Run the program to find out if timer_create(CLOCK_MONOTONIC) actually
  dnl works, on Solaris timer_create() exists but fails at runtime.
! AC_CACHE_CHECK([for timer_create], [vim_cv_timer_create], [
! save_LIBS="$LIBS"
! LIBS="$LIBS -lrt"
  AC_RUN_IFELSE([AC_LANG_PROGRAM([
  #if STDC_HEADERS
  # include <stdlib.h>
--- 3807,3813 ----
  dnl Check for timer_create. It probably requires the 'rt' library.
  dnl Run the program to find out if timer_create(CLOCK_MONOTONIC) actually
  dnl works, on Solaris timer_create() exists but fails at runtime.
! AC_CACHE_CHECK([for timer_create without -lrt], [vim_cv_timer_create], [
  AC_RUN_IFELSE([AC_LANG_PROGRAM([
  #if STDC_HEADERS
  # include <stdlib.h>
***************
*** 3828,3863 ****
    if (timer_create(CLOCK_MONOTONIC, &action, &timer_id) < 0)
      exit(1);  // cannot create a monotonic timer
    ])],
!   AC_MSG_NOTICE(timer_create with -lrt); vim_cv_timer_create=yes,
!   LIBS="$save_LIBS"
!   AC_RUN_IFELSE([AC_LANG_PROGRAM([
! #if STDC_HEADERS
! # include <stdlib.h>
! # include <stddef.h>
! #endif
! #include<signal.h>
! #include<time.h>
! static void set_flag(union sigval sv) {}
      ], [
!     struct timespec ts;
!     struct sigevent action = {0};
!     timer_t timer_id;
  
!     action.sigev_notify = SIGEV_THREAD;
!     action.sigev_notify_function = set_flag;
!     if (timer_create(CLOCK_MONOTONIC, &action, &timer_id) < 0)
!       exit(1);  // cannot create a monotonic timer
!     ])],
!     vim_cv_timer_create=yes,
!     vim_cv_timer_create=no),
!     AC_MSG_ERROR(cross-compiling: please set 'vim_cv_timer_create')
!     )]
! )
  
  if test "x$vim_cv_timer_create" = "xyes" ; then
    AC_DEFINE(HAVE_TIMER_CREATE)
  fi
! 
  
  AC_CACHE_CHECK([whether stat() ignores a trailing slash], 
[vim_cv_stat_ignores_slash],
    [
--- 3826,3875 ----
    if (timer_create(CLOCK_MONOTONIC, &action, &timer_id) < 0)
      exit(1);  // cannot create a monotonic timer
    ])],
!   vim_cv_timer_create=yes,
!   vim_cv_timer_create=no,
!   AC_MSG_ERROR(cross-compiling: please set 'vim_cv_timer_create')
!   )])
! 
! dnl If the previous failed, check for timer_create() and linking with -lrt.
! if test "x$vim_cv_timer_create" = "xno" ; then
!   save_LIBS="$LIBS"
!   LIBS="$LIBS -lrt"
!   AC_CACHE_CHECK([for timer_create with -lrt], 
[vim_cv_timer_create_with_lrt], [
!     AC_RUN_IFELSE([AC_LANG_PROGRAM([
!     #if STDC_HEADERS
!     # include <stdlib.h>
!     # include <stddef.h>
!     #endif
!     #include <signal.h>
!     #include <time.h>
!     static void set_flag(union sigval sv) {}
      ], [
!       struct timespec ts;
!       struct sigevent action = {0};
!       timer_t timer_id;
  
!       action.sigev_notify = SIGEV_THREAD;
!       action.sigev_notify_function = set_flag;
!       if (timer_create(CLOCK_MONOTONIC, &action, &timer_id) < 0)
!       exit(1);  // cannot create a monotonic timer
!       ])],
!       vim_cv_timer_create_with_lrt=yes,
!       vim_cv_timer_create_with_lrt=no,
!       AC_MSG_ERROR(cross-compiling: please set 'vim_cv_timer_create_with_lrt')
!     )])
!   LIBS="$save_LIBS"
! else
!   vim_cv_timer_create_with_lrt=no
! fi
  
  if test "x$vim_cv_timer_create" = "xyes" ; then
    AC_DEFINE(HAVE_TIMER_CREATE)
  fi
! if test "x$vim_cv_timer_create_with_lrt" = "xyes" ; then
!   AC_DEFINE(HAVE_TIMER_CREATE)
!   LIBS="$LIBS -lrt"
! fi
  
  AC_CACHE_CHECK([whether stat() ignores a trailing slash], 
[vim_cv_stat_ignores_slash],
    [
*** ../vim-9.0.0102/src/auto/configure  2022-07-28 12:09:00.601870813 +0100
--- src/auto/configure  2022-07-28 22:36:17.915781472 +0100
***************
*** 13037,13050 ****
  fi
  rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
  
! { $as_echo "$as_me:${as_lineno-$LINENO}: checking for timer_create" >&5
! $as_echo_n "checking for timer_create... " >&6; }
  if ${vim_cv_timer_create+:} false; then :
    $as_echo_n "(cached) " >&6
  else
  
- save_LIBS="$LIBS"
- LIBS="$LIBS -lrt"
  if test "$cross_compiling" = yes; then :
    as_fn_error $? "cross-compiling: please set 'vim_cv_timer_create'" 
"$LINENO" 5
  
--- 13037,13048 ----
  fi
  rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
  
! { $as_echo "$as_me:${as_lineno-$LINENO}: checking for timer_create without 
-lrt" >&5
! $as_echo_n "checking for timer_create without -lrt... " >&6; }
  if ${vim_cv_timer_create+:} false; then :
    $as_echo_n "(cached) " >&6
  else
  
  if test "$cross_compiling" = yes; then :
    as_fn_error $? "cross-compiling: please set 'vim_cv_timer_create'" 
"$LINENO" 5
  
***************
*** 13078,13145 ****
  }
  _ACEOF
  if ac_fn_c_try_run "$LINENO"; then :
!   { $as_echo "$as_me:${as_lineno-$LINENO}: timer_create with -lrt" >&5
! $as_echo "$as_me: timer_create with -lrt" >&6;}; vim_cv_timer_create=yes
  else
!   LIBS="$save_LIBS"
!   if test "$cross_compiling" = yes; then :
!   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
! $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
! as_fn_error $? "cannot run test program while cross compiling
! See \`config.log' for more details" "$LINENO" 5; }
  else
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
  /* end confdefs.h.  */
  
! #if STDC_HEADERS
! # include <stdlib.h>
! # include <stddef.h>
! #endif
! #include<signal.h>
! #include<time.h>
! static void set_flag(union sigval sv) {}
  
  int
  main ()
  {
  
!     struct timespec ts;
!     struct sigevent action = {0};
!     timer_t timer_id;
! 
!     action.sigev_notify = SIGEV_THREAD;
!     action.sigev_notify_function = set_flag;
!     if (timer_create(CLOCK_MONOTONIC, &action, &timer_id) < 0)
!       exit(1);  // cannot create a monotonic timer
  
    ;
    return 0;
  }
  _ACEOF
  if ac_fn_c_try_run "$LINENO"; then :
!   vim_cv_timer_create=yes
  else
!   vim_cv_timer_create=no
  fi
  rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
    conftest.$ac_objext conftest.beam conftest.$ac_ext
  fi
  
  fi
! rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
!   conftest.$ac_objext conftest.beam conftest.$ac_ext
! fi
! 
! 
  fi
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $vim_cv_timer_create" >&5
- $as_echo "$vim_cv_timer_create" >&6; }
  
  if test "x$vim_cv_timer_create" = "xyes" ; then
    $as_echo "#define HAVE_TIMER_CREATE 1" >>confdefs.h
  
  fi
  
  
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stat() ignores a 
trailing slash" >&5
  $as_echo_n "checking whether stat() ignores a trailing slash... " >&6; }
--- 13076,13160 ----
  }
  _ACEOF
  if ac_fn_c_try_run "$LINENO"; then :
!   vim_cv_timer_create=yes
  else
!   vim_cv_timer_create=no
! fi
! rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
!   conftest.$ac_objext conftest.beam conftest.$ac_ext
! fi
! 
! fi
! { $as_echo "$as_me:${as_lineno-$LINENO}: result: $vim_cv_timer_create" >&5
! $as_echo "$vim_cv_timer_create" >&6; }
! 
! if test "x$vim_cv_timer_create" = "xno" ; then
!   save_LIBS="$LIBS"
!   LIBS="$LIBS -lrt"
!   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for timer_create with 
-lrt" >&5
! $as_echo_n "checking for timer_create with -lrt... " >&6; }
! if ${vim_cv_timer_create_with_lrt+:} false; then :
!   $as_echo_n "(cached) " >&6
! else
! 
!     if test "$cross_compiling" = yes; then :
!   as_fn_error $? "cross-compiling: please set 'vim_cv_timer_create_with_lrt'" 
"$LINENO" 5
! 
  else
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
  /* end confdefs.h.  */
  
!     #if STDC_HEADERS
!     # include <stdlib.h>
!     # include <stddef.h>
!     #endif
!     #include <signal.h>
!     #include <time.h>
!     static void set_flag(union sigval sv) {}
  
  int
  main ()
  {
  
!       struct timespec ts;
!       struct sigevent action = {0};
!       timer_t timer_id;
! 
!       action.sigev_notify = SIGEV_THREAD;
!       action.sigev_notify_function = set_flag;
!       if (timer_create(CLOCK_MONOTONIC, &action, &timer_id) < 0)
!       exit(1);  // cannot create a monotonic timer
  
    ;
    return 0;
  }
  _ACEOF
  if ac_fn_c_try_run "$LINENO"; then :
!   vim_cv_timer_create_with_lrt=yes
  else
!   vim_cv_timer_create_with_lrt=no
  fi
  rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
    conftest.$ac_objext conftest.beam conftest.$ac_ext
  fi
  
  fi
! { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$vim_cv_timer_create_with_lrt" >&5
! $as_echo "$vim_cv_timer_create_with_lrt" >&6; }
!   LIBS="$save_LIBS"
! else
!   vim_cv_timer_create_with_lrt=no
  fi
  
  if test "x$vim_cv_timer_create" = "xyes" ; then
    $as_echo "#define HAVE_TIMER_CREATE 1" >>confdefs.h
  
  fi
+ if test "x$vim_cv_timer_create_with_lrt" = "xyes" ; then
+   $as_echo "#define HAVE_TIMER_CREATE 1" >>confdefs.h
  
+   LIBS="$LIBS -lrt"
+ fi
  
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stat() ignores a 
trailing slash" >&5
  $as_echo_n "checking whether stat() ignores a trailing slash... " >&6; }
*** ../vim-9.0.0102/src/version.c       2022-07-28 21:51:34.336218153 +0100
--- src/version.c       2022-07-28 22:38:11.411728959 +0100
***************
*** 737,738 ****
--- 737,740 ----
  {   /* Add new patch number below this line */
+ /**/
+     103,
  /**/

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