[core] Fix compilation on osx and freebsd+waf

src/common/sys_memory.c

@@ -80,7 +80,7 @@ gsize li_memory_usage(void) {
 	if (KERN_SUCCESS != task_info(mach_task_self(), TASK_BASIC_INFO, (task_info_t) &tbinfo, &cnt))
 		return 0;
 
-	return binfo.resident_size;
+	return tbinfo.resident_size;
 }
 
 #elif defined(LIGHTY_OS_SOLARIS)

src/common/wscript

@@ -10,6 +10,8 @@ License and Copyright: see COPYING file
 import Options, sys, Utils
 
 def configure(conf):
+	if sys.platform.startswith('freebsd'):
+		conf.check(lib='kvm', uselib_store='kvm', mandatory=True)
 	pass
 
 
@@ -29,11 +31,15 @@ def build(bld):
 		utils.c
 		waitqueue.c
 	'''
+	if sys.platform.startswith('freebsd'):
+		libs = ['kvm']
+	else:
+		libs = []
 
 	libcommon = bld.new_task_gen(
 		features = 'cc cshlib',
 	 	source = source,
 		defines = ['HAVE_CONFIG_H=1'],
-		uselib = ['glib', 'gthread', 'gmodule', 'ev'],
+		uselib = ['glib', 'gthread', 'gmodule', 'ev'] + libs,
 		includes = ['#/include/'],
 		target = 'common')