use $shell()

diff --git a/doc/manpages/Makefile.am b/doc/manpages/Makefile.am
index 6c3edd4d6d94a8547e5424c123b57b0606456aa0..32131aef8170542bdf6d9567f4b8636d39894479 100644 (file)
--- a/doc/manpages/Makefile.am
+++ b/doc/manpages/Makefile.am
@@ -965,7 +965,7 @@ dist_man_MANS += $(APIMANS)
 
 $(APIMANS): stamp_mans
 
-YEAR=`date +%Y`
+YEAR=$(shell date +%Y)
 
 compare-makefile:
        FUNCS=`cat $(top_srcdir)/lib/includes/gnutls/*.h | $(top_srcdir)/doc/scripts/getfuncs.pl|sort -d`; \