libwdi-sys 0.1.5

diff --git a/libwdi/installer.c b/libwdi/installer.c
--- a/libwdi/installer.c
+++ b/libwdi/installer.c
@@ -690,7 +690,7 @@ BOOL disable_system_restore(BOOL enabled)
 	DWORD disp, regtype, val, val_size=sizeof(DWORD);
 	HRESULT hr;
 	IGroupPolicyObject* pLGPO = NULL;
-	static DWORD original_val = -1;		// -1 = key doesn't exist
+	static DWORD original_val = (DWORD)-1; // -1 = key doesn't exist
 	HKEY machine_key = NULL, disable_system_restore_key = NULL;
 	// MSVC is finicky about these ones => redefine them
 	const IID my_IID_IGroupPolicyObject =
@@ -737,7 +737,7 @@
 		goto error;
 	}
 
-	if ((disp == REG_OPENED_EXISTING_KEY) && (enabled) && (original_val == -1)) {
+	if (disp == REG_OPENED_EXISTING_KEY && enabled && original_val == (DWORD)-1) {
 		// backup existing value for restore
 		regtype = REG_DWORD;
 		r = RegQueryValueExA(disable_system_restore_key, "DisableSystemRestore", NULL, &regtype, (LPBYTE)&original_val, &val_size);
@@ -749,7 +749,7 @@
 		}
 	}
 
-	if ((enabled) || (original_val != -1)) {
+	if (enabled || original_val != (DWORD)-1) {
 		val = (enabled)?1:original_val;
 		r = RegSetValueExA(disable_system_restore_key, "DisableSystemRestore", 0, REG_DWORD, (BYTE*)&val, sizeof(val));
 	} else {
@@ -796,7 +796,7 @@ int __cdecl main(int argc_ansi, char** argv_ansi)
 	char* inf_name = NULL;
 	char path[MAX_PATH_LENGTH];
 	char destname[MAX_PATH_LENGTH];
-	uintptr_t syslog_reader_thid = -1L;
+	uintptr_t syslog_reader_thid = (uintptr_t)-1;
 
 	// Connect to the messaging pipe
 	pipe_handle = CreateFileA(INSTALLER_PIPE_NAME, GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
@@ -858,7 +858,7 @@
 	syslog_ready_event = CreateEvent(NULL, TRUE, FALSE, NULL);
 	syslog_terminate_event = CreateEvent(NULL, TRUE, FALSE, NULL);
 	syslog_reader_thid = _beginthread(syslog_reader_thread, 0, 0);
-	if ( (syslog_reader_thid == -1L)
+	if (syslog_reader_thid == (uintptr_t)-1
 	  || (WaitForSingleObject(syslog_ready_event, 2000) != WAIT_OBJECT_0) )	{
 		plog("Unable to create syslog reader thread");
 		SetEvent(syslog_terminate_event);