Added extern "C" wrappers to clean up some Solaris warnings

src/std/filters/test/arrTest.cpp

@@ -54,9 +54,11 @@ extern "C" {
 
 const char *server_port = CA_SERVER_PORT;
 
+extern "C" {
 static void exitSubroutine(subRecord *precord) {
     epicsExit((precord->a == 0.0) ? EXIT_SUCCESS : EXIT_FAILURE);
 }
+}
 
 static int fl_equals_array(short type, const db_field_log *pfl1, void *p2) {
     for (int i = 0; i < pfl1->no_elements; i++) {
@@ -298,6 +300,7 @@ static void check(short dbr_type) {
 
 static dbEventCtx evtctx;
 
+extern "C" {
 static void arrTestCleanup(void* junk)
 {
     dbFreeBase(pdbbase);
@@ -308,6 +311,7 @@ static void arrTestCleanup(void* junk)
 
     dbmfFreeChunks();
 }
+}
 
 MAIN(arrTest)
 {