diff --git a/ncurses-6.4-makeuseof_secure_open.dif b/ncurses-6.4-makeuseof_secure_open.dif
deleted file mode 100644
index ba9764c..0000000
--- a/ncurses-6.4-makeuseof_secure_open.dif
+++ /dev/null
@@ -1,15 +0,0 @@
----
- include/nc_access.h |    2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- include/nc_access.h
-+++ include/nc_access.h	2023-05-02 07:38:17.837330114 +0000
-@@ -64,7 +64,7 @@ extern NCURSES_EXPORT(int) _nc_env_acces
- #else
- 
- #define safe_fopen(name,mode)       _nc_safe_fopen(name,mode)
--#define safe_open2(name,flags)      _nc_safe_open2(name,flags,0)
-+#define safe_open2(name,flags)      _nc_safe_open3(name,flags,0)
- #define safe_open3(name,flags,mode) _nc_safe_open3(name,flags,mode)
- extern NCURSES_EXPORT(FILE *)       _nc_safe_fopen (const char *, const char *);
- extern NCURSES_EXPORT(int)          _nc_safe_open3 (const char *, int, mode_t);
diff --git a/ncurses-6.4-patches.tar.bz2 b/ncurses-6.4-patches.tar.bz2
index fc63a9b..deb4b76 100644
--- a/ncurses-6.4-patches.tar.bz2
+++ b/ncurses-6.4-patches.tar.bz2
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b4a58a90340459329eb97ac6e72c827bf8ed4dc38742fee24f7e016d1fcb44ad
-size 637246
+oid sha256:970c62c14e2ab2cd633b98a5fba32f6ca971be82cdcccdd12c5bb8fa9e1fda3a
+size 676686
diff --git a/ncurses-6.4.dif b/ncurses-6.4.dif
index 772b51e..16ba079 100644
--- a/ncurses-6.4.dif
+++ b/ncurses-6.4.dif
@@ -139,7 +139,7 @@
  done
 --- configure
 +++ configure	2023-04-24 06:52:13.042243156 +0000
-@@ -6437,7 +6437,7 @@ echo $ECHO_N "checking for an rpath opti
+@@ -6438,7 +6438,7 @@ echo $ECHO_N "checking for an rpath opti
  		fi
  		;;
  	(linux*|gnu*|k*bsd*-gnu|freebsd*)
@@ -148,7 +148,7 @@
  		;;
  	(openbsd[2-9].*|mirbsd*)
  		LD_RPATH_OPT="-Wl,-rpath,"
-@@ -6810,8 +6810,8 @@ echo "${ECHO_T}$cf_cv_ldflags_search_pat
+@@ -6811,8 +6811,8 @@ echo "${ECHO_T}$cf_cv_ldflags_search_pat
  	else
  		cf_cv_shared_soname='`basename $@`'
  	fi
@@ -159,7 +159,7 @@
  		;;
  	(mingw*msvc*)
  		cf_cv_shlib_version=msvcdll
-@@ -8050,7 +8050,7 @@ echo "${ECHO_T}$with_pcre2" >&6
+@@ -8051,7 +8051,7 @@ echo "${ECHO_T}$with_pcre2" >&6
  
  if test "x$with_pcre2" != xno ; then
  	cf_with_pcre2_ok=no
@@ -168,7 +168,7 @@
  	do
  
  if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$cf_with_pcre2"; then
-@@ -15236,12 +15236,15 @@ cat >>$cf_edit_man <<CF_EOF
+@@ -15237,12 +15237,15 @@ cat >>$cf_edit_man <<CF_EOF
  		echo "? missing rename for \$cf_source"
  		cf_target="\$cf_source"
  	fi
@@ -186,7 +186,7 @@
  	sed	-f "$cf_man_alias" \\
  CF_EOF
  
-@@ -15251,7 +15254,7 @@ cat >>$cf_edit_man <<CF_EOF
+@@ -15252,7 +15255,7 @@ cat >>$cf_edit_man <<CF_EOF
  CF_EOF
  else
  cat >>$cf_edit_man <<CF_EOF
@@ -195,7 +195,7 @@
  CF_EOF
  fi
  
-@@ -15291,7 +15294,7 @@ cat >>$cf_edit_man <<CF_EOF
+@@ -15292,7 +15295,7 @@ cat >>$cf_edit_man <<CF_EOF
  		mv \$TMP.$cf_manpage_so_strip \$TMP
  	fi
  	fi
@@ -204,7 +204,7 @@
  CF_EOF
  fi
  
-@@ -15300,23 +15303,23 @@ case "$MANPAGE_FORMAT" in
+@@ -15301,23 +15304,23 @@ case "$MANPAGE_FORMAT" in
  cat >>$cf_edit_man <<CF_EOF
  	if test "\$form" = format ; then
  		# BSDI installs only .0 suffixes in the cat directories
@@ -234,7 +234,7 @@
  				for cf_alias in \$aliases
  				do
  					if test "\$section" = 1 ; then
-@@ -15325,7 +15328,7 @@ cat >>$cf_edit_man <<CF_EOF
+@@ -15326,7 +15329,7 @@ cat >>$cf_edit_man <<CF_EOF
  
  					if test "$MANPAGE_SYMLINKS" = yes ; then
  						if test -f "\$cf_alias\${suffix}" ; then
@@ -243,7 +243,7 @@
  							then
  								continue
  							fi
-@@ -15335,18 +15338,18 @@ CF_EOF
+@@ -15336,18 +15339,18 @@ CF_EOF
  case "x$LN_S" in
  (*-f)
  cat >>$cf_edit_man <<CF_EOF
@@ -265,7 +265,7 @@
  						echo ".so \$cf_source" >\$TMP
  CF_EOF
  if test -n "$cf_manpage_compress" ; then
-@@ -15366,9 +15369,9 @@ cat >>$cf_edit_man <<CF_EOF
+@@ -15367,9 +15370,9 @@ cat >>$cf_edit_man <<CF_EOF
  			)
  		)
  	elif test "\$verb" = removing ; then
@@ -278,7 +278,7 @@
  		)
  		test -d "\$cf_subdir\${section}" &&
  		test -n "\$aliases" && (
-@@ -15388,6 +15391,7 @@ cat >>$cf_edit_man <<CF_EOF
+@@ -15389,6 +15392,7 @@ cat >>$cf_edit_man <<CF_EOF
  #		echo ".hy 0"
  		cat \$TMP
  	fi
diff --git a/ncurses.changes b/ncurses.changes
index 29c82ca..f3e0537 100644
--- a/ncurses.changes
+++ b/ncurses.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Mon May  8 08:51:32 UTC 2023 - Dr. Werner Fink <werner@suse.de>
+
+- Add ncurses patch 20230506
+  > build-fixes related to configure-options and/or platform:
+    + fix for --enable-fvisibility
+    + fix for unusual values of --with-rel-version
+    + fix for unusual values of --with-abi-version
+    + fix for --disable-tcap-names
+    + fix for termcap in nc_access.h (report by Werner Fink).
+- Delete patch ncurses-6.4-makeuseof_secure_open.dif as now upstream
+
 -------------------------------------------------------------------
 Wed May  3 08:47:27 UTC 2023 - Dr. Werner Fink <werner@suse.de>
 
diff --git a/ncurses.spec b/ncurses.spec
index dc9305f..4d8cae6 100644
--- a/ncurses.spec
+++ b/ncurses.spec
@@ -100,7 +100,6 @@ Patch0:         ncurses-6.4.dif
 Patch1:         ncurses-5.9-ibm327x.dif
 Patch2:         ncurses-5.7-tack.dif
 Patch3:         FORTIFY_SOURCE_3-fix.patch
-Patch4:         ncurses-6.4-makeuseof_secure_open.dif
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 %global         _miscdir    %{_datadir}/misc
 %global         _incdir     %{_includedir}
@@ -353,7 +352,6 @@ rm -fr tack
 mv tack-* tack
 %patch1 -p0 -b .327x
 %patch2 -p0 -b .hs
-%patch4 -p0
 %patch0 -p0 -b .p0
 %patch3 -p1