Ticket #2732: tests/lib/vfs/Makefile.am: drop muldefs from CFLAGS

Otherwise gcc on alpha/arm will break in gcc -c phase:

      CC     config_string.o
    armv5tel-softfloat-linux-gnueabi-gcc <skip>  -z muldefs -c config_string.c
    armv5tel-softfloat-linux-gnueabi-gcc: muldefs: No such file or directory
    make[4]: *** [config_string.o] Error 1

Gentoo-bug: http://bugs.gentoo.org/403343
Reported-by: Markus Meier
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

tests/lib/mcconfig/Makefile.am

@@ -1,7 +1,7 @@
 AM_CFLAGS = $(GLIB_CFLAGS) -I$(top_srcdir) @CHECK_CFLAGS@ \
-	-DWORKDIR=\"$(abs_builddir)\"  -z muldefs
+	-DWORKDIR=\"$(abs_builddir)\"
 
-AM_LDFLAGS = -z muldefs
+AM_LDFLAGS = -Wl,-z,muldefs
 
 LIBS=@CHECK_LIBS@  $(top_builddir)/lib/libmc.la
 

tests/lib/vfs/Makefile.am

@@ -1,7 +1,7 @@
 AM_CFLAGS = -I$(top_srcdir)/lib/vfs $(GLIB_CFLAGS) -I$(top_srcdir) @CHECK_CFLAGS@ \
-	-DTEST_SHARE_DIR=\"$(abs_srcdir)\" -z muldefs
+	-DTEST_SHARE_DIR=\"$(abs_srcdir)\"
 
-AM_LDFLAGS = -z muldefs
+AM_LDFLAGS = -Wl,-z,muldefs
 
 EXTRA_DIST = mc.charsets