diff --git a/make/ChangeLog b/make/ChangeLog
index 4dd1d58c8e..d01294a4bf 100644
--- a/make/ChangeLog
+++ b/make/ChangeLog
@@ -1,4 +1,8 @@
 
+2000-11-10	Ralf Corsepius <corsepiu@faw.uni-ulm.de>
+
+	* custom/Cygwin-posix.cfg: Add -U__STRICT_ANSI__ to LIBC_DEFINES.
+
 2000-10-27	Ralf Corsepius <corsepiu@faw.uni-ulm.de>
 
 	* custom/bare.cfg: Add @ to make-exe, make make-exe more verbose.
diff --git a/make/custom/Cygwin-posix.cfg b/make/custom/Cygwin-posix.cfg
index 1f425311ec..3b3947d027 100644
--- a/make/custom/Cygwin-posix.cfg
+++ b/make/custom/Cygwin-posix.cfg
@@ -15,7 +15,7 @@ RTEMS_BSP_FAMILY=posix
 include $(RTEMS_ROOT)/make/custom/default.cfg
 
 # RTEMS_LIBC_DIR must already be set (by configuration) DOES NOT MATTER
-LIBC_DEFINES =-D_POSIX_C_SOURCE
+LIBC_DEFINES =-D_POSIX_C_SOURCE -U__STRICT_ANSI__
 LIBC_DEFINES+=-DRTEMS_UNIXLIB -DRTEMS_UNIX -DMALLOC_PROVIDED
 
 # The following define the memory reserved in the executable for the