I hereby commit a sin. features.h is now going to _lie_

and claim that this is GNU libc.  Too many pieces of code
look for GNU libc version numbers.  So uClibc is now going
to lie and claim it is GNU libc.  This makes, for example,
networking apps work much better since /usr/include/linux/socket.h
does the wrong thing otherwise.  There are lots of other examples.
 -Erik

include/features.h

@@ -8,6 +8,17 @@
 #define	__UCLIBC_MAJOR__	9
 #define	__UCLIBC_MINOR__	5
 
+/*  There is an unwholesomely huge amount of code out there that depends on the
+ *  presence of GNU libc header files.  We have GNU libc header files.  So here
+ *  we commit a horrible sin.  At this point, we _lie_ and claim to be GNU libc
+ *  to make things like /usr/include/linux/socket.h and lots of apps work as
+ *  their developers intended.  This is IMHO, pardonable, since these defines
+ *  are not really intended to check for the presence of a particular library,
+ *  but rather are used to define an _interface_.  */
+#define __GNU_LIBRARY__ 6
+#define __GLIBC__       2
+#define __GLIBC_MINOR__ 1
+
 /* Make a half-hearted attempt to accomodate non-gcc compilers */
 #ifndef __GNUC__
 #define __attribute(foo)  /* Ignore */