make "make syntax-check" quieter

* maint.mk (po-check, makefile-check, sc_proper_name_utf8_requires_ICONV):
Add "@" prefix.

diff --git a/maint.mk b/maint.mk
index 5ba7b28..0a82a99 100644 (file)
--- a/maint.mk
+++ b/maint.mk
@@ -469,7 +469,7 @@ sc_immutable_NEWS:
 # Each program that uses proper_name_utf8 must link with
 # one of the ICONV libraries.
 sc_proper_name_utf8_requires_ICONV:
-       progs=$$(grep -l 'proper_name_utf8 ''("' $$($(VC_LIST_EXCEPT)));\
+       @progs=$$(grep -l 'proper_name_utf8 ''("' $$($(VC_LIST_EXCEPT)));\
        if test "x$$progs" != x; then                                   \
          fail=0;                                                       \
          for p in $$progs; do                                          \
@@ -545,7 +545,7 @@ check-AUTHORS:
 # not @...@ in Makefile.am, now that we can rely on automake
 # to emit a definition for each substituted variable.
 makefile-check:
-       grep -nE '@[A-Z_0-9]+@' `find . -name Makefile.am` \
+       @grep -nE '@[A-Z_0-9]+@' `find . -name Makefile.am` \
          && { echo '$(ME): use $$(...), not @...@' 1>&2; exit 1; } || :
 
 news-date-check: NEWS
@@ -575,7 +575,7 @@ m4-check:
 # 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=;                                                       \