Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875.
diff --git a/PC/os2emx/config.c b/PC/os2emx/config.c
index 47378fd..93fbecc 100644
--- a/PC/os2emx/config.c
+++ b/PC/os2emx/config.c
@@ -39,7 +39,7 @@
 extern void initos2();
 extern void initsignal();
 #ifdef WITH_THREAD
-extern void initthread();
+extern void init_thread();
 #endif
 extern void init_codecs();
 extern void init_csv();
@@ -99,7 +99,7 @@
 	{"os2", initos2},
 	{"signal", initsignal},
 #ifdef WITH_THREAD
-	{"thread", initthread},
+	{"_thread", init_thread},
 #endif
 	{"_codecs", init_codecs},
 	{"_csv", init_csv},