diff --git a/src/libraries/libc/arch/amd64/crt/libdl.cpp b/src/libraries/libc/arch/amd64/crt/libdl.cpp
new file mode 100644
index 0000000..118d9a6
--- /dev/null
+++ b/src/libraries/libc/arch/amd64/crt/libdl.cpp
@@ -0,0 +1,7 @@
+
+extern "C" {
+    // Stub out these libdl functions for libunwind until
+    // we have a real libdl
+    int dladdr(const void *, void *) { return 0; }
+    int dl_iterate_phdr(void *, void *) { return 0; }
+}
diff --git a/src/libraries/libc/stdio.h b/src/libraries/libc/stdio.h
index 40dc74e..f93269e 100644
--- a/src/libraries/libc/stdio.h
+++ b/src/libraries/libc/stdio.h
@@ -36,6 +36,10 @@ typedef size_t fpos_t;
 #define SEEK_END 1
 #define SEEK_SET 2
 
+extern FILE *stdin;
+extern FILE *stdout;
+extern FILE *stderr;
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -112,6 +116,10 @@ int feof(FILE *stream);
 int ferror(FILE *stream);
 void perror(const char *s);
 
+// Environment functions
+//
+char * getenv(const char *name);
+
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/src/libraries/libc/stdio/fflush.cpp b/src/libraries/libc/stdio/fflush.cpp
new file mode 100644
index 0000000..38f3694
--- /dev/null
+++ b/src/libraries/libc/stdio/fflush.cpp
@@ -0,0 +1,3 @@
+#include <stdio.h>
+
+int fflush(FILE *stream) { return 0; }
diff --git a/src/libraries/libc/stdio/fprintf.cpp b/src/libraries/libc/stdio/fprintf.cpp
new file mode 100644
index 0000000..ebdef0a
--- /dev/null
+++ b/src/libraries/libc/stdio/fprintf.cpp
@@ -0,0 +1,4 @@
+#include <stdio.h>
+
+int fprintf(FILE * restrict stream, const char * restrict format, ...) { return 0; }
+int vfprintf(FILE * restrict stream, const char * restrict format, va_list arg) { return 0; }
diff --git a/src/libraries/libc/stdio/fputc.cpp b/src/libraries/libc/stdio/fputc.cpp
new file mode 100644
index 0000000..1de8cf6
--- /dev/null
+++ b/src/libraries/libc/stdio/fputc.cpp
@@ -0,0 +1,3 @@
+#include <stdio.h>
+
+int fputc(char c, FILE *stream) { return 0; }
diff --git a/src/libraries/libc/stdio/fputs.cpp b/src/libraries/libc/stdio/fputs.cpp
new file mode 100644
index 0000000..a9e981e
--- /dev/null
+++ b/src/libraries/libc/stdio/fputs.cpp
@@ -0,0 +1,3 @@
+#include <stdio.h>
+
+int fputs(const char * restrict s, FILE * restrict stream) { return 0; }
diff --git a/src/libraries/libc/stdio/fwrite.cpp b/src/libraries/libc/stdio/fwrite.cpp
new file mode 100644
index 0000000..7d85985
--- /dev/null
+++ b/src/libraries/libc/stdio/fwrite.cpp
@@ -0,0 +1,3 @@
+#include <stdio.h>
+
+size_t fwrite(const void * restrict ptr, size_t size, size_t nmemb, FILE * restrict stream) { return 0; }
diff --git a/src/libraries/libc/stdio/getenv.cpp b/src/libraries/libc/stdio/getenv.cpp
new file mode 100644
index 0000000..081101f
--- /dev/null
+++ b/src/libraries/libc/stdio/getenv.cpp
@@ -0,0 +1,3 @@
+#include <stdio.h>
+
+char * getenv(const char *name) { return nullptr; }
diff --git a/src/libraries/libc/stdio/stdio.cpp b/src/libraries/libc/stdio/stdio.cpp
new file mode 100644
index 0000000..e0fed71
--- /dev/null
+++ b/src/libraries/libc/stdio/stdio.cpp
@@ -0,0 +1,5 @@
+#include <stdio.h>
+
+FILE *stdin = nullptr;
+FILE *stdout = nullptr;
+FILE *stderr = nullptr;