Check for vte-2.91 pkg-config file

Index: configure
--- configure.orig
+++ configure
@@ -13276,12 +13276,12 @@ if test -n "$VTE_CFLAGS"; then
     pkg_cv_VTE_CFLAGS="$VTE_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"vte-2.90 >= \$VTE_REQUIRED_VERSION\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "vte-2.90 >= $VTE_REQUIRED_VERSION") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"vte-2.91 >= \$VTE_REQUIRED_VERSION\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "vte-2.91 >= $VTE_REQUIRED_VERSION") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_VTE_CFLAGS=`$PKG_CONFIG --cflags "vte-2.90 >= $VTE_REQUIRED_VERSION" 2>/dev/null`
+  pkg_cv_VTE_CFLAGS=`$PKG_CONFIG --cflags "vte-2.91 >= $VTE_REQUIRED_VERSION" 2>/dev/null`
 else
   pkg_failed=yes
 fi
@@ -13292,12 +13292,12 @@ if test -n "$VTE_LIBS"; then
     pkg_cv_VTE_LIBS="$VTE_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"vte-2.90 >= \$VTE_REQUIRED_VERSION\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "vte-2.90 >= $VTE_REQUIRED_VERSION") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"vte-2.91 >= \$VTE_REQUIRED_VERSION\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "vte-2.91 >= $VTE_REQUIRED_VERSION") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_VTE_LIBS=`$PKG_CONFIG --libs "vte-2.90 >= $VTE_REQUIRED_VERSION" 2>/dev/null`
+  pkg_cv_VTE_LIBS=`$PKG_CONFIG --libs "vte-2.91 >= $VTE_REQUIRED_VERSION" 2>/dev/null`
 else
   pkg_failed=yes
 fi
@@ -13317,9 +13317,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        VTE_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "vte-2.90 >= $VTE_REQUIRED_VERSION" 2>&1`
+	        VTE_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "vte-2.91 >= $VTE_REQUIRED_VERSION" 2>&1`
         else
-	        VTE_PKG_ERRORS=`$PKG_CONFIG --print-errors "vte-2.90 >= $VTE_REQUIRED_VERSION" 2>&1`
+	        VTE_PKG_ERRORS=`$PKG_CONFIG --print-errors "vte-2.91 >= $VTE_REQUIRED_VERSION" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$VTE_PKG_ERRORS" >&5