allow separate setting of parallelism for subseq. tests

Change-Id: I5a5444e8ee95b0fd95a97c31c94ab0f9c3935abb

Makefile.top

@@ -271,7 +271,7 @@ $(1).clean:
 	cd $(1) && $(GNUMAKE) -j $(GMAKE_PARALLELISM) $(GMAKE_OPTIONS) clean gb_PARTIALBUILD=T
 
 $(1).subsequentcheck:
-	cd $(1) && $(GNUMAKE) -j $(GMAKE_PARALLELISM) $(GMAKE_OPTIONS) subsequentcheck gb_PARTIALBUILD=T
+	cd $(1) && $(GNUMAKE) -j $(CHECK_PARALLELISM) $(GMAKE_OPTIONS) subsequentcheck gb_PARTIALBUILD=T
 
 $(1).deliver:
 	@true

config_host.mk.in

@@ -46,6 +46,7 @@ export CC=@CC@
 export CC_FOR_BUILD=@CC_FOR_BUILD@
 export CDR_CFLAGS=@CDR_CFLAGS@
 export CDR_LIBS=@CDR_LIBS@
+export CHECK_PARALLELISM=@CHECK_PARALLELISM@
 export CLASSPATH=@CLASSPATH@
 export CL_X64=@CL_X64@
 export CLUCENE_CFLAGS=@CLUCENE_CFLAGS@

configure.in

@@ -2068,6 +2068,12 @@ AC_ARG_WITH(max-jobs,
          Defaults to 1, unless you configure --enable-icecream - then to 10.]),
 ,)
 
+AC_ARG_WITH(check-jobs,
+    AS_HELP_STRING([--with-check-jobs],
+        [Maximum number of jobs that will be issued at the same time during 'make subsequenttest'.
+         Default value is the same as 'max-jobs'. Useful because the subsequent tests are very lighweight.]),
+,)
+
 dnl ===================================================================
 dnl MacOSX build and runtime environment options
 dnl ===================================================================
@@ -12165,6 +12171,17 @@ AC_MSG_RESULT([per module:$GMAKE_MODULE_PARALLELISM, for tail_build:$GMAKE_PARAL
 AC_SUBST(GMAKE_PARALLELISM)
 AC_SUBST(GMAKE_MODULE_PARALLELISM)
 
+dnl ===================================================================
+dnl Number of parallel jobs to be executed during subsequenttest
+dnl ===================================================================
+AC_MSG_CHECKING([for maximum no. of jobs during subsequenttest])
+CHECK_PARALLELISM=$GMAKE_PARALLELISM
+if test "$with_check_jobs" != ""; then
+    CHECK_PARALLELISM="$with_check_jobs"
+fi
+AC_MSG_RESULT([$CHECK_PARALLELISM])
+AC_SUBST(CHECK_PARALLELISM)
+
 dnl ===================================================================
 dnl Setting up the environment.
 dnl ===================================================================