gnulib added a new syntax-check test: use $(VAR), not @VAR@

The latter is not officially "wrong", but *is* terribly anachronistic.
I think automake documentation or comments call that syntax obsolescent.
* cfg.mk (_makefile_at_at_check_exceptions): Exempt @SCHEMADIR@
and @SYSCONFDIR@ uses -- there are no Makefile variables for those.
* docs/Makefile.am: Use $(INSTALL), not @install@.
* examples/dominfo/Makefile.am: Similar.
* examples/domsuspend/Makefile.am: Similar.
* proxy/Makefile.am: Similar.
* python/Makefile.am: Similar.
* python/tests/Makefile.am: Similar.
* src/Makefile.am: Similar.
* tests/Makefile.am: Similar.

cfg.mk

 # Customize Makefile.maint.                           -*- makefile -*-
-# Copyright (C) 2003-2009 Free Software Foundation, Inc.
+# Copyright (C) 2003-2010 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -265,3 +265,6 @@ ifeq (0,$(MAKELEVEL))
     $(error gnulib update required; run ./autogen.sh first)
   endif
 endif
+
+# Exempt @...@ uses of these symbols.
+_makefile_at_at_check_exceptions = ' && !/(SCHEMA|SYSCONF)DIR/'

docs/Makefile.am

@@ -143,7 +143,7 @@ rebuild: api all
 
 install-data-local:
 	$(mkinstalldirs) $(DESTDIR)$(HTML_DIR)
-	-@INSTALL@ -m 0644 $(srcdir)/FAQ.html \
+	-$(INSTALL) -m 0644 $(srcdir)/FAQ.html \
 	    $(srcdir)/Libxml2-Logo-90x34.gif $(DESTDIR)$(HTML_DIR)
 	$(mkinstalldirs) $(DESTDIR)$(HTML_DIR)/html
 	for h in $(apihtml); do \
@@ -152,7 +152,7 @@ install-data-local:
 	  $(INSTALL) -m 0644 $(srcdir)/$$p $(DESTDIR)$(HTML_DIR)/html; done
 	$(mkinstalldirs) $(DESTDIR)$(DEVHELP_DIR)
 	for file in $(devhelphtml) $(devhelppng) $(devhelpcss); do \
-	    @INSTALL@ -m 0644 $(srcdir)/$${file} $(DESTDIR)$(DEVHELP_DIR) ; \
+	    $(INSTALL) -m 0644 $(srcdir)/$${file} $(DESTDIR)$(DEVHELP_DIR) ; \
 	done
 
 uninstall-local:

examples/dominfo/Makefile.am

 
 INCLUDES = -I$(top_builddir)/include -I$(top_srcdir)/include -I@srcdir@/include
-LDADDS = @STATIC_BINARIES@ $(WARN_CFLAGS) $(top_builddir)/src/libvirt.la 	$(COVERAGE_LDFLAGS)
+LDADDS = $(STATIC_BINARIES) $(WARN_CFLAGS) $(top_builddir)/src/libvirt.la 	$(COVERAGE_LDFLAGS)
 
 noinst_PROGRAMS=info1
 

examples/domsuspend/Makefile.am

 
 INCLUDES = -I$(top_builddir)/include -I$(top_srcdir)/include -I@srcdir@/include
-LDADDS = @STATIC_BINARIES@ $(WARN_CFLAGS) $(top_builddir)/src/libvirt.la 	$(COVERAGE_LDFLAGS)
+LDADDS = $(STATIC_BINARIES) $(WARN_CFLAGS) $(top_builddir)/src/libvirt.la 	$(COVERAGE_LDFLAGS)
 
 noinst_PROGRAMS=suspend
 

proxy/Makefile.am

@@ -7,7 +7,7 @@ INCLUDES = -I$(top_srcdir)/gnulib/lib -I../gnulib/lib \
            -I@top_srcdir@/src/util \
            -I@top_srcdir@/src/conf \
            -I@top_srcdir@/src/xen \
-           @LIBXML_CFLAGS@ \
+           $(LIBXML_CFLAGS) \
 	   -DPROXY  -DLOCALEBASEDIR=\""$(datadir)/locale"\" \
            -DGETTEXT_PACKAGE=\"$(PACKAGE)\" $(WARN_CFLAGS) $(XEN_CFLAGS)
 

python/Makefile.am

@@ -37,12 +37,12 @@ pyexec_LTLIBRARIES = libvirtmod.la
 libvirtmod_la_SOURCES = libvirt-override.c typewrappers.c libvirt.c libvirt.h
 # Python <= 2.4 header files contain a redundant decl, hence we
 # need extra flags here
-libvirtmod_la_CFLAGS = @WARN_PYTHON_CFLAGS@
+libvirtmod_la_CFLAGS = $(WARN_PYTHON_CFLAGS)
 
 libvirtmod_la_LDFLAGS = -module -avoid-version -shared -L$(top_builddir)/src/.libs \
-	@CYGWIN_EXTRA_LDFLAGS@
+	$(CYGWIN_EXTRA_LDFLAGS)
 libvirtmod_la_LIBADD = $(mylibs) \
-	@CYGWIN_EXTRA_LIBADD@ @CYGWIN_EXTRA_PYTHON_LIBADD@
+	$(CYGWIN_EXTRA_LIBADD) $(CYGWIN_EXTRA_PYTHON_LIBADD)
 
 GENERATE = generator.py
 API_DESC = $(top_srcdir)/docs/libvirt-api.xml $(srcdir)/libvirt-override-api.xml
@@ -61,10 +61,10 @@ $(libvirtmod_la_OBJECTS): $(GENERATED)
 
 install-data-local:
 	$(mkinstalldirs) $(DESTDIR)$(pyexecdir)
-	@INSTALL@ -m 0644 libvirt.py $(DESTDIR)$(pyexecdir)
+	$(INSTALL) -m 0644 libvirt.py $(DESTDIR)$(pyexecdir)
 	$(mkinstalldirs) $(DESTDIR)$(DOCS_DIR)
 	@(for doc in $(DOCS) ; \
-	   do @INSTALL@ -m 0644 $$doc $(DESTDIR)$(DOCS_DIR) ; done)
+	   do $(INSTALL) -m 0644 $$doc $(DESTDIR)$(DOCS_DIR) ; done)
 
 uninstall-local:
 	rm -f $(DESTDIR)$(pyexecdir)/libvirt.py

python/tests/Makefile.am

@@ -30,7 +30,7 @@ clean:
 install-data-local:
 	$(mkinstalldirs) $(DESTDIR)$(EXAMPLE_DIR)
 	-(for test in $(PYTESTS); \
-	  do @INSTALL@ -m 0644 $(srcdir)/$$test $(DESTDIR)$(EXAMPLE_DIR) ; done)
+	  do $(INSTALL) -m 0644 $(srcdir)/$$test $(DESTDIR)$(EXAMPLE_DIR) ; done)
 
 uninstall-local:
 	for test in $(PYTESTS); do rm -f $(DESTDIR)$(EXAMPLE_DIR)/$$test; done

src/Makefile.am

@@ -806,13 +806,13 @@ libvirt.syms: libvirt_public.syms $(USED_SYM_FILES)
 # Empty source list - it merely links a bunch of convenience libs together
 libvirt_la_SOURCES =
 libvirt_la_LIBADD += \
-		    @CYGWIN_EXTRA_LIBADD@ ../gnulib/lib/libgnu.la
+		    $(CYGWIN_EXTRA_LIBADD) ../gnulib/lib/libgnu.la
 libvirt_la_LDFLAGS = $(VERSION_SCRIPT_FLAGS)libvirt.syms \
-                     -version-info @LIBVIRT_VERSION_INFO@ \
+                     -version-info $(LIBVIRT_VERSION_INFO) \
                     $(COVERAGE_CFLAGS:-f%=-Wc,-f%) \
                     $(LIBXML_LIBS) \
 		    $(DRIVER_MODULE_LIBS) \
-		    @CYGWIN_EXTRA_LDFLAGS@ @MINGW_EXTRA_LDFLAGS@
+		    $(CYGWIN_EXTRA_LDFLAGS) $(MINGW_EXTRA_LDFLAGS)
 libvirt_la_CFLAGS = $(COVERAGE_CFLAGS) -DIN_LIBVIRT
 libvirt_la_DEPENDENCIES = $(libvirt_la_LIBADD) libvirt.syms
 
@@ -824,8 +824,8 @@ noinst_LTLIBRARIES += libvirt_test.la
 # Remove version script from convenience library
 test_LDFLAGS =						\
   $$(echo '$(libvirt_la_LDFLAGS)'			\
-     |sed 's!@VERSION_SCRIPT_FLAGS@libvirt.syms!!'	\
-     |sed 's!-version-info @LIBVIRT_VERSION_INFO@!!')
+     |sed 's!$(VERSION_SCRIPT_FLAGS)libvirt.syms!!'	\
+     |sed 's!-version-info $(LIBVIRT_VERSION_INFO)!!')
 
 # Just like the above, but with a slightly different set of public symbols.
 libvirt_test_la_SOURCES = $(libvirt_la_SOURCES)

tests/Makefile.am

@@ -27,7 +27,7 @@ INCLUDES += \
 endif
 
 LDADDS = \
-	@STATIC_BINARIES@ \
+	$(STATIC_BINARIES) \
 	$(LIBXML_LIBS) \
         $(GNUTLS_LIBS) \
         $(SASL_LIBS) \