tests: fix make distcheck failure due to TODO change

* maint.mk (po-check): Limit check for e.g., _(...)-marked
messages to files matching *.? and *.??, thus excluding TODO
and *.diff.

diff --git a/maint.mk b/maint.mk
index 0a82a99..a011a11 100644 (file)
--- a/maint.mk
+++ b/maint.mk
@@ -573,16 +573,15 @@ m4-check:
               exit 1; } || :
 
 # Verify that all source files using _() are listed in po/POTFILES.in.
-# FIXME: don't hard-code file names below; use a more general mechanism.
 po-check:
-       @if test -f po/POTFILES.in; then                                        \
+       @if test -f po/POTFILES.in; then                                \
          grep -E -v '^(#|$$)' po/POTFILES.in                           \
            | grep -v '^src/false\.c$$' | sort > $@-1;                  \
          files=;                                                       \
          for file in $$($(VC_LIST_EXCEPT)) lib/*.[ch]; do              \
            case $$file in                                              \
-           djgpp/* | man/*) continue;;                                 \
-           */c99-to-c89.diff) continue;;                               \
+             *.?|*.??) ;;                                              \
+             *) continue;;                                             \
            esac;                                                       \
            case $$file in                                              \
            *.[ch])                                                     \