(my-distcheck): When building with -Werror, also require -Wshadow.

diff --git a/Makefile.maint b/Makefile.maint
index 9fced62..083b71d 100644 (file)
--- a/Makefile.maint
+++ b/Makefile.maint
@@ -379,7 +379,7 @@ null_AM_MAKEFLAGS = \
 # Detect format-string/arg-list mismatches that would normally be obscured
 # by the use of _().  The --disable-nls effectively defines away that macro,
 # and building with CFLAGS='-Wformat -Werror' causes any format warning to be
-# treated as a failure.
+# treated as a failure.  Also, check for shadowing problems with -Wshadow.
 TMPDIR ?= /tmp
 t=$(TMPDIR)/$(PACKAGE)/test
 my-distcheck: $(local-check)
@@ -388,7 +388,7 @@ my-distcheck: $(local-check)
        GZIP=$(GZIP_ENV) $(AMTAR) -C $(t) -zxf $(distdir).tar.gz
        cd $(t)/$(distdir)                              \
          && ./configure --disable-nls                  \
-         && $(MAKE) CFLAGS='-Wformat -Werror'          \
+         && $(MAKE) CFLAGS='-Wformat -Werror -Wshadow' \
              AM_MAKEFLAGS='$(null_AM_MAKEFLAGS)'       \
          && $(MAKE) dvi                                \
          && $(MAKE) check                              \