diff --git a/configure/os/CONFIG.Common.RTEMS b/configure/os/CONFIG.Common.RTEMS
index 28c8b3a10..fe71e3110 100644
--- a/configure/os/CONFIG.Common.RTEMS
+++ b/configure/os/CONFIG.Common.RTEMS
@@ -92,9 +92,9 @@ CODE_CFLAGS =
 CODE_CXXFLAGS =
 
 #--------------------------------------------------
-# RTEMS uses the inline keyword, so get rid of pedantic warnings
-CONFORM_CFLAGS_STRICT = -ansi
-CONFORM_CXXFLAGS_STRICT = -ansi
+# RTEMS uses the inline keyword and non-ANSI functions (like strdup)
+CONFORM_CFLAGS_STRICT = 
+CONFORM_CXXFLAGS_STRICT =
 
 #--------------------------------------------------
 # Command-line input support