compat UPDATE embedded platform improvements
diff --git a/compat/compat.h.in b/compat/compat.h.in
index 3baa489..49468ab 100644
--- a/compat/compat.h.in
+++ b/compat/compat.h.in
@@ -194,7 +194,7 @@
 # if defined (_WIN32)
 #  define timegm _mkgmtime
 # else
-#  error No timegm() implementation for this platform is available.
+time_t timegm(struct tm *tm);
 # endif
 #endif