diff --git a/.gitignore b/.gitignore
index 8274b1f..7768f3c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,3 +19,4 @@ node_modules
 # Xmake
 .xmake
 
+*.tmp
\ No newline at end of file
diff --git a/processor/test/cases/pmanager.cpp b/processor/test/cases/pmanager.cpp
index d1afebc..ced1929 100644
--- a/processor/test/cases/pmanager.cpp
+++ b/processor/test/cases/pmanager.cpp
@@ -3,6 +3,7 @@
 #include "test/u.hpp"
 #include <tuple>
 #include <cstdint>
+#include <cstdio>
 
 inline namespace {
 
@@ -36,12 +37,16 @@ AddTestCase _(20, "ProcedureManager", [](TestCase& t) {
 			0x01, 0x00, 0x00, 0x00,
 		};
 
-		unsigned char obuf[256];
-		
-		FILE *in = fmemopen(ibuf, 256, "r"),
-			*out = fmemopen(obuf, 256, "w");
+		FILE *in = fopen(".in.tmp", "wb");
+		fwrite(ibuf, 128, 1, in);
+		fclose(in);
+		in = fopen(".in.tmp", "rb");
+		FILE *out = fopen(".out.tmp", "wb");
+
 		pm.handleCall(in, out);
 		pm.handleCall(in, out);
+		fclose(in);
+		fclose(out);
 		return x;
 	}, 1);
 });
diff --git a/processor/xmake.lua b/processor/xmake.lua
index 855169e..43918c9 100644
--- a/processor/xmake.lua
+++ b/processor/xmake.lua
@@ -4,7 +4,7 @@ set_version("0.1.0")
 set_languages("c++20")
 set_targetdir("build")
 
-add_includedirs(".")
+add_includedirs(".", "pc", "utility")
 
 add_files("pc/*.cpp", "utility/*.cpp")
 target("main")