[Template merge] required gtgramtool version

.gitignore

@@ -84,12 +84,9 @@
 /test/run-morph-tester.sh
 /test/run-yaml-testcases.sh
 /src/fst/morphology/test/*-adjective.txt
-/src/fst/morphology/test/all*.txt
-/src/fst/morphology/test/analysed*.txt
+/src/fst/morphology/test/*.txt 
 /src/fst/morphology/test/filtered*
 /src/fst/morphology/test/generate-*-lemmas.sh
-/src/fst/morphology/test/generated*.txt
-/src/fst/morphology/test/missing_*.txt
 /src/fst/morphology/test/phonology/negative-*.txt
 /src/fst/morphology/test/phonology/hfst-twolc-error-messages.txt
 /src/fst/morphology/test/phonology/pair-*.txt

m4/giella-macros.m4

@@ -674,6 +674,23 @@ AS_IF([test "x$enable_grammarchecker" != "xno"],
         then: pipx install git+https://github.com/divvun/giellaltgramtools
       ])]),
     AC_MSG_RESULT(yes))
+_gtgramtool_min_version=0.7.0
+gtgramtool_too_old_message="gtgramtool needs to be updated.
+    If you installed it with pipx, run:
+        pipx upgrade GiellaLTGramTools"
+AC_MSG_CHECKING([the version of gtgramtool])
+AS_IF([test "x${GTGRAMTOOL}" != xno],
+        [_gtgramtool_version=$( "${GTGRAMTOOL}" --version | sed -e 's/^.*version //')],
+        [_gtgramtool_version=0])
+AC_MSG_RESULT([$_gtgramtool_version])
+AS_IF([test "x$enable_grammarchecker" != "xno"], 
+      AC_MSG_CHECKING([whether the gtgramtool version is at least $_gtgramtool_min_version])
+      AX_COMPARE_VERSION([$_gtgramtool_version], [ge], [$_gtgramtool_min_version],
+                         [gtgramtool_version_ok=yes], [gtgramtool_version_ok=no])
+    AS_IF([test "x${gtgramtool_version_ok}" != xno],
+          [AC_MSG_RESULT([$gtgramtool_version_ok])],
+          [AC_MSG_ERROR([$gtgramtool_too_old_message])]))
+
 
 # Enable all spellers - default is 'no'
 AC_ARG_ENABLE([spellers],