[PATCH] config headers: add support for silent builds

* lib/am/remake-hdr.am (%STAMP%): Use $(AM_V_at) and $(AM_V_GEN).
(%CONFIG_HIN%): Likewise.
---
 lib/am/remake-hdr.am | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/am/remake-hdr.am b/lib/am/remake-hdr.am
index 0d9f4cd8b9da..c0016cffc626 100644
--- a/lib/am/remake-hdr.am
+++ b/lib/am/remake-hdr.am
@@ -21,8 +21,8 @@
 
 
 %STAMP%: %CONFIG_H_DEPS% $(top_builddir)/config.status
-	@rm -f %STAMP%
-	cd $(top_builddir) && $(SHELL) ./config.status %CONFIG_H_PATH%
+	$(AM_V_at)rm -f %STAMP%
+	$(AM_V_GEN)cd $(top_builddir) && $(SHELL) ./config.status %CONFIG_H_PATH%
 
 
 ## Only the first file of AC_CONFIG_HEADERS is assumed to be generated
@@ -30,7 +30,7 @@
 if %?FIRST-HDR%
 %CONFIG_HIN%: %MAINTAINER-MODE% $(am__configure_deps) %FILES%
 ## Cater to parallel BSD make.
-	($(am__cd) $(top_srcdir) && $(AUTOHEADER))
+	$(AM_V_GEN)($(am__cd) $(top_srcdir) && $(AUTOHEADER))
 ## Whenever $(AUTOHEADER) has run, we must make sure that
 ## ./config.status will rebuild config.h.  The dependency from %STAMP%
 ## on %CONFIG_H_DEPS% (which contains config.hin) is not enough to
@@ -61,11 +61,11 @@ if %?FIRST-HDR%
 ##
 ## A solution is to erase %STAMP% here so that the %STAMP% rule
 ## is always triggered after the this one.
-	rm -f %STAMP%
+	$(AM_V_at)rm -f %STAMP%
 ## Autoheader has the bad habit of not changing the timestamp if
 ## config.hin is unchanged, which breaks Make targets.  Since what
 ## must not changed gratuitously is config.h, which is already handled
 ## by config.status, there is no reason to make things complex for
 ## config.hin.
-	touch $@
+	$(AM_V_at)touch $@
 endif %?FIRST-HDR%
-- 
2.33.0