ports/freebsd: fix make check on recent Linux/glibc

Add an (empty) sys/param.h since it's used by topology-freebsd.c
Otherwise, the ports/freebsd cross-build fails on recent Linuc/glibc
because it tries to use our emulated sys/user.h which isn't enough
to understand Linux' sys/param.h. With a dummy sys/param.h,
the problems goes away.

Our FreeBSD code doesn't seem to currently need sys/param.h but I
can't be sure it's true for all FreeBSD releases, so let's keep it.

Thanks to Ludovic Courtes for the help.

Signed-off-by: Brice Goglin <[email protected]>

Author: bgoglin

tests/hwloc/ports/Makefile.am

@@ -1,4 +1,4 @@
-# Copyright © 2009-2019 Inria.  All rights reserved.
+# Copyright © 2009-2020 Inria.  All rights reserved.
 # Copyright © 2009, 2011-2012 Université Bordeaux
 # Copyright © 2009-2014 Cisco Systems, Inc.  All rights reserved.
 # See COPYING in top-level directory.
@@ -76,6 +76,7 @@ libhwloc_port_freebsd_la_SOURCES = \
         include/freebsd/sys/sysctl.h \
         include/freebsd/sys/thr.h \
         include/freebsd/sys/user.h \
+        include/freebsd/sys/param.h \
         include/freebsd/sys/domainset.h
 libhwloc_port_freebsd_la_CPPFLAGS = $(common_CPPFLAGS) \
         -I$(HWLOC_top_srcdir)/tests/hwloc/ports/include/freebsd \

tests/hwloc/ports/include/freebsd/sys/param.h

@@ -0,0 +1,4 @@
+#ifndef _SYS_PARAM_H_
+#define _SYS_PARAM_H_
+
+#endif /* _SYS_PARAM_H_ */