Robert P. J. DAY says:
According to Mike Frysinger, this patch was removed from Gentoo in the
2.3.x series and didn't seem to cause any adverse effects. So toss it
from the patch directories for glibc 2.5 and up.
1 Index: uClibc/libc/sysdeps/linux/i386/bits/uClibc_arch_features.h
2 ===================================================================
3 --- uClibc/libc/sysdeps/linux/i386/bits/uClibc_arch_features.h (revision 18898)
4 +++ uClibc/libc/sysdeps/linux/i386/bits/uClibc_arch_features.h (working copy)
6 /* define if target supports IEEE signed zero floats */
7 #define __UCLIBC_HAVE_SIGNED_ZERO__
10 #define internal_function __attribute__ ((regparm (3), stdcall))
13 #endif /* _BITS_UCLIBC_ARCH_FEATURES_H */
14 Index: uClibc/include/libc-symbols.h
15 ===================================================================
16 --- uClibc/include/libc-symbols.h (revision 18898)
17 +++ uClibc/include/libc-symbols.h (working copy)
19 #ifndef _LIBC_SYMBOLS_H
20 #define _LIBC_SYMBOLS_H 1
22 +/* This is defined for the compilation of all C library code. features.h
23 + tests this to avoid inclusion of stubs.h while compiling the library,
24 + before stubs.h has been generated. Some library code that is shared
25 + with other packages also tests this symbol to see if it is being
26 + compiled as part of the C library. We must define this before including
27 + config.h, because it makes some definitions conditional on whether libc
28 + itself is being compiled, or just some generator program. */
32 /* This file's macros are included implicitly in the compilation of every
33 file in the C library by -imacros.
37 #include <bits/uClibc_arch_features.h>
40 -/* This is defined for the compilation of all C library code. features.h
41 - tests this to avoid inclusion of stubs.h while compiling the library,
42 - before stubs.h has been generated. Some library code that is shared
43 - with other packages also tests this symbol to see if it is being
44 - compiled as part of the C library. We must define this before including
45 - config.h, because it makes some definitions conditional on whether libc
46 - itself is being compiled, or just some generator program. */
49 /* Enable declarations of GNU extensions, since we are compiling them. */