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-rwxr-xr-xconfigure2
-rw-r--r--configure.in2
-rw-r--r--src/bin/psql/input.c12
-rw-r--r--src/include/pg_config.h.in3
4 files changed, 17 insertions, 2 deletions
diff --git a/configure b/configure
index 8c61390ca77..5772d0e9c4c 100755
--- a/configure
+++ b/configure
@@ -13232,7 +13232,7 @@ if test x"$pgac_cv_var_rl_completion_append_character" = x"yes"; then
$as_echo "#define HAVE_RL_COMPLETION_APPEND_CHARACTER 1" >>confdefs.h
fi
- for ac_func in rl_completion_matches rl_filename_completion_function
+ for ac_func in rl_completion_matches rl_filename_completion_function rl_reset_screen_size
do :
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
diff --git a/configure.in b/configure.in
index b5868b04d28..44f832f1496 100644
--- a/configure.in
+++ b/configure.in
@@ -1635,7 +1635,7 @@ LIBS="$LIBS_including_readline"
if test "$with_readline" = yes; then
PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER
- AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function])
+ AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function rl_reset_screen_size])
AC_CHECK_FUNCS([append_history history_truncate_file])
fi
diff --git a/src/bin/psql/input.c b/src/bin/psql/input.c
index e3771040072..c0c5524af53 100644
--- a/src/bin/psql/input.c
+++ b/src/bin/psql/input.c
@@ -65,6 +65,17 @@ gets_interactive(const char *prompt)
{
char *result;
+ /*
+ * Some versions of readline don't notice SIGWINCH signals that arrive
+ * when not actively reading input. The simplest fix is to always
+ * re-read the terminal size. This leaves a window for SIGWINCH to be
+ * missed between here and where readline() enables libreadline's
+ * signal handler, but that's probably short enough to be ignored.
+ */
+#ifdef HAVE_RL_RESET_SCREEN_SIZE
+ rl_reset_screen_size();
+#endif
+
/* Enable SIGINT to longjmp to sigint_interrupt_jmp */
sigint_interrupt_enabled = true;
@@ -330,6 +341,7 @@ initializeInput(int flags)
char home[MAXPGPATH];
useReadline = true;
+ rl_initialize();
initialize_readline();
useHistory = true;
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index a20e0cd1d66..16a272efdee 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -428,6 +428,9 @@
/* Define to 1 if you have the `rl_filename_completion_function' function. */
#undef HAVE_RL_FILENAME_COMPLETION_FUNCTION
+/* Define to 1 if you have the `rl_reset_screen_size' function. */
+#undef HAVE_RL_RESET_SCREEN_SIZE
+
/* Define to 1 if you have the <security/pam_appl.h> header file. */
#undef HAVE_SECURITY_PAM_APPL_H