patch 8.1.1487: older msgfmt cannot generate proper .desktop file

Problem:    Older msgfmt cannot generate proper .desktop file.
Solution:   Add a configure check to not use this msgfmt version. (Ken Takata)

Author: brammool

src/auto/configure

@@ -14549,9 +14549,14 @@ rm -f core conftest.err conftest.$ac_objext \
 $as_echo_n "checking if msgfmt supports --desktop... " >&6; }
       MSGFMT_DESKTOP=
       if "$MSGFMT" --help | grep -e '--desktop' >/dev/null; then
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+	if "$MSGFMT" --version | grep '0.19.[3-7]$' >/dev/null; then
+	  	  	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: broken" >&5
+$as_echo "broken" >&6; }
+	else
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
-	MSGFMT_DESKTOP="gvim.desktop vim.desktop"
+	  MSGFMT_DESKTOP="gvim.desktop vim.desktop"
+	fi
       else
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }

src/configure.ac

@@ -4302,8 +4302,14 @@ if test "$enable_nls" = "yes"; then
       AC_MSG_CHECKING([if msgfmt supports --desktop])
       MSGFMT_DESKTOP=
       if "$MSGFMT" --help | grep -e '--desktop' >/dev/null; then
-	AC_MSG_RESULT([yes])
-	MSGFMT_DESKTOP="gvim.desktop vim.desktop"
+	if "$MSGFMT" --version | grep '0.19.[[3-7]]$' >/dev/null; then
+	  dnl GNU gettext 0.19.7's --desktop is broken.  We assume back to
+	  dnl 0.19.3 is also broken.
+	  AC_MSG_RESULT([broken])
+	else
+	  AC_MSG_RESULT([yes])
+	  MSGFMT_DESKTOP="gvim.desktop vim.desktop"
+	fi
       else
 	AC_MSG_RESULT([no])
       fi

src/version.c

@@ -767,6 +767,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1487,
 /**/
     1486,
 /**/