Add benchmark makefile generating configs

Makefile.in

@@ -33,7 +33,7 @@ SHARED_LIB = @SHARED_LIB@
 BUILDLIB = libawka.a $(SHARED_LIB)
 #######################################
 
-MAKEFILEIN = Makefile.in lib/Makefile.in awka/Makefile.in test/Makefile.in
+MAKEFILEIN = Makefile.in lib/Makefile.in awka/Makefile.in test/Makefile.in benchmark/Makefile.in
 
 all: awka_exe libawka
 
@@ -66,10 +66,10 @@ clean:
 	cd test; $(MAKE) clean
 
 distclean:  clean
-	rm -f config.h Makefile lib/Makefile awka/Makefile test/Makefile \
+	rm -f config.h Makefile lib/Makefile awka/Makefile test/Makefile benchmark/Makefile \
 	    config.status config.log config.cache
 	rm -f defines.out maxint.out
-	rm -f benchmark/*.c benchmark/core benchmark/*.o benchmark/x*
+	rm -f benchmark/*.c benchmark/core benchmark/*.o benchmark/x* benchmark/*.out
 
 configure:  configure.in awka.ac.m4
 	autoconf
@@ -79,3 +79,8 @@ check:	awka_exe libawka
 
 test:	check
 
+timeit:  awka_exe libawka
+	cd benchmark; $(MAKE) -k
+
+benchmark:  timeit
+

configure

@@ -3032,7 +3032,7 @@ done
 
 ac_given_srcdir=$srcdir
 
-trap 'rm -fr `echo "Makefile lib/Makefile awka/Makefile test/Makefile" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
+trap 'rm -fr `echo "Makefile lib/Makefile awka/Makefile test/Makefile benchmark/Makefile" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
 EOF
 cat >> $CONFIG_STATUS <<EOF
 
@@ -3120,7 +3120,7 @@ EOF
 
 cat >> $CONFIG_STATUS <<EOF
 
-CONFIG_FILES=\${CONFIG_FILES-"Makefile lib/Makefile awka/Makefile test/Makefile"}
+CONFIG_FILES=\${CONFIG_FILES-"Makefile lib/Makefile awka/Makefile test/Makefile benchmark/Makefile"}
 EOF
 cat >> $CONFIG_STATUS <<\EOF
 for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then

configure.in

@@ -40,6 +40,6 @@ CHECK_FUNCTIONS(time,mktime,asctime,localtime,gmtime)
 EXE_EXTENSION
 
 DO_CONFIG_H
-AC_OUTPUT(Makefile lib/Makefile awka/Makefile test/Makefile)
+AC_OUTPUT(Makefile lib/Makefile awka/Makefile test/Makefile benchmark/Makefile)