diff --git a/source/lib/sysdep/unix/dir_watch_fam.cpp b/source/lib/sysdep/linux/dir_watch_fam.cpp
similarity index 100%
rename from source/lib/sysdep/unix/dir_watch_fam.cpp
rename to source/lib/sysdep/linux/dir_watch_fam.cpp
diff --git a/source/lib/sysdep/linux/linux.cpp b/source/lib/sysdep/linux/linux.cpp
new file mode 100644
index 0000000000..e565dfa7cc
--- /dev/null
+++ b/source/lib/sysdep/linux/linux.cpp
@@ -0,0 +1,22 @@
+#include "precompiled.h"
+
+#include "lib/sysdep/sysdep.h"
+
+#define GNU_SOURCE
+#include <dlfcn.h>
+
+LibError sys_get_executable_name(char* n_path, size_t buf_size)
+{
+	Dl_info dl_info;
+
+	memset(&dl_info, 0, sizeof(dl_info));
+	if (!dladdr((void *)sys_get_executable_name, &dl_info) ||
+		!dl_info.dli_fname )
+	{
+		return ERR::NO_SYS;
+	}
+
+	strncpy(n_path, dl_info.dli_fname, buf_size);
+	return INFO::OK;
+}
+
diff --git a/source/lib/sysdep/osx/dir_watch.cpp b/source/lib/sysdep/osx/dir_watch.cpp
index e88fcdd9be..a39017164f 100644
--- a/source/lib/sysdep/osx/dir_watch.cpp
+++ b/source/lib/sysdep/osx/dir_watch.cpp
@@ -3,12 +3,14 @@
 
 // stub implementations
 
-LibError dir_add_watch(const char * const n_full_path, intptr_t* const watch)
+LibError dir_add_watch(
+		const char * const UNUSED(n_full_path),
+		intptr_t* const UNUSED(watch))
 {
 	return INFO::OK;
 }
 
-LibError dir_cancel_watch(const intptr_t watch)
+LibError dir_cancel_watch(const intptr_t UNUSED(watch))
 {
 	return INFO::OK;
 }
diff --git a/source/lib/sysdep/osx/odbg.cpp b/source/lib/sysdep/osx/odbg.cpp
new file mode 100644
index 0000000000..7f0c37b2ec
--- /dev/null
+++ b/source/lib/sysdep/osx/odbg.cpp
@@ -0,0 +1,24 @@
+// note: the BFD stuff *could* be used on other platforms, if we saw the
+// need for it.
+
+#include "precompiled.h"
+
+#include "lib/sysdep/sysdep.h"
+#include "lib/debug.h"
+
+void* debug_get_nth_caller(uint UNUSED(n), void *UNUSED(context))
+{
+	return NULL;
+}
+
+LibError debug_dump_stack(wchar_t* UNUSED(buf), size_t UNUSED(max_chars), uint UNUSED(skip), void* UNUSED(context))
+{
+	return ERR::NOT_IMPLEMENTED;
+}
+
+LibError debug_resolve_symbol(void* UNUSED(ptr_of_interest), char* UNUSED(sym_name), char* UNUSED(file), int* UNUSED(line))
+{
+	return ERR::NOT_IMPLEMENTED;
+}
+
+
diff --git a/source/lib/sysdep/osx/osx.cpp b/source/lib/sysdep/osx/osx.cpp
index 730e906897..4b4ebf122a 100644
--- a/source/lib/sysdep/osx/osx.cpp
+++ b/source/lib/sysdep/osx/osx.cpp
@@ -54,24 +54,24 @@ LibError gfx_get_video_mode(int* xres, int* yres, int* bpp, int* freq)
 	return ERR::NOT_IMPLEMENTED;
 }
 
-
-LibError sys_get_executable_name(char* n_path, size_t buf_size)
-{
-	static char name[PATH_MAX];
-	static bool init = false;
-	if ( !init )
-	{
-		init = true;
-		char temp[PATH_MAX];
-		u32 size = PATH_MAX;
-		if (_NSGetExecutablePath( temp, &size ))
-		{
-			return ERR::NO_SYS;
-		}
-		debug_printf("exe name before realpath: %s\n", temp);
-		realpath(temp, name);
-	}
-	strncpy(n_path, name, buf_size);
-	debug_printf("exe name: %s\n", name);
-	return INFO::OK;
-}
+
+LibError sys_get_executable_name(char* n_path, size_t buf_size)
+{
+	static char name[PATH_MAX];
+	static bool init = false;
+	if ( !init )
+	{
+		init = true;
+		char temp[PATH_MAX];
+		u32 size = PATH_MAX;
+		if (_NSGetExecutablePath( temp, &size ))
+		{
+			return ERR::NO_SYS;
+		}
+		debug_printf("exe name before realpath: %s\n", temp);
+		realpath(temp, name);
+	}
+	strncpy(n_path, name, buf_size);
+	debug_printf("exe name: %s\n", name);
+	return INFO::OK;
+}
diff --git a/source/lib/sysdep/unix/unix.cpp b/source/lib/sysdep/unix/unix.cpp
index 16a3981dcc..d668c7072f 100644
--- a/source/lib/sysdep/unix/unix.cpp
+++ b/source/lib/sysdep/unix/unix.cpp
@@ -25,23 +25,6 @@ void sys_display_msgw(const wchar_t* caption, const wchar_t* msg)
 	fwprintf(stderr, L"%ls: %ls\n", caption, msg);
 }
 
-
-LibError sys_get_executable_name(char* n_path, size_t buf_size)
-{
-	Dl_info dl_info;
-
-	memset(&dl_info, 0, sizeof(dl_info));
-	if (!dladdr((void *)sys_get_executable_name, &dl_info) ||
-		!dl_info.dli_fname )
-	{
-		return ERR::NO_SYS;
-	}
-
-	strncpy(n_path, dl_info.dli_fname, buf_size);
-	return INFO::OK;
-}
-
-
 ErrorReaction sys_display_error(const wchar_t* text, uint flags)
 {
 	printf("%ls\n\n", text);