Fix build failures (#75)

CMakeLists.txt

@@ -51,6 +51,6 @@ set(XDP_DRIVER ${CMAKE_CURRENT_SOURCE_DIR}/run-p4c-xdp.sh)
 
 # This file will not run the full tests, but it will attempt to compile the p4 files down to C
 set (XDP_TEST_SUITES
-  "${CMAKE_CURRENT_SOURCE_DIR}/tests/xdp*.p4"
+  "${CMAKE_CURRENT_SOURCE_DIR}/tests/*.p4"
   )
 p4c_add_tests("xdp" ${XDP_DRIVER} ${XDP_TEST_SUITES} "")

xdpBackend.cpp

@@ -32,7 +32,7 @@ void run_xdp_backend(const EbpfOptions& options, const IR::ToplevelBlock* toplev
 
     auto main = toplevel->getMain();
     if (main == nullptr) {
-        ::error("Could not locate top-level block; is there a %1% module?", IR::P4Program::main);
+        ::warning("Could not locate top-level block; is there a %1% module?", IR::P4Program::main);
         return;
     }
 

xdpProgram.cpp

@@ -79,7 +79,7 @@ bool XDPProgram::build() {
 }
 
 void XDPProgram::emitTypes(EBPF::CodeBuilder* builder) {
-    for (auto d : program->declarations) {
+    for (auto d : program->objects) {
         if (!d->is<IR::Type>()) continue;
 
         if (d->is<IR::IContainer>() || d->is<IR::Type_Extern>() ||