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 diff -dur strace-4.5.16.orig/configure strace-4.5.16/configure
2 --- strace-4.5.16.orig/configure 2007-01-11 23:23:33.000000000 +0100
3 +++ strace-4.5.16/configure 2007-07-14 19:18:43.000000000 +0200
8 +echo "$as_me:$LINENO: checking for statfs64 in sys/(statfs|vfs).h" >&5
9 +echo $ECHO_N "checking for statfs64 in sys/(statfs|vfs).h... $ECHO_C" >&6
10 +if test "${ac_cv_type_statfs64+set}" = set; then
11 + echo $ECHO_N "(cached) $ECHO_C" >&6
13 + cat >conftest.$ac_ext <<_ACEOF
16 +cat confdefs.h >>conftest.$ac_ext
17 +cat >>conftest.$ac_ext <<_ACEOF
18 +/* end confdefs.h. */
20 +#include <linux/types.h>
21 +#include <sys/statfs.h>
33 +rm -f conftest.$ac_objext
34 +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
35 + (eval $ac_compile) 2>conftest.er1
37 + grep -v '^ *+' conftest.er1 >conftest.err
39 + cat conftest.err >&5
40 + echo "$as_me:$LINENO: \$? = $ac_status" >&5
41 + (exit $ac_status); } &&
42 + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
43 + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
46 + echo "$as_me:$LINENO: \$? = $ac_status" >&5
47 + (exit $ac_status); }; } &&
48 + { ac_try='test -s conftest.$ac_objext'
49 + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
52 + echo "$as_me:$LINENO: \$? = $ac_status" >&5
53 + (exit $ac_status); }; }; then
54 + ac_cv_type_statfs64=yes
56 + echo "$as_me: failed program was:" >&5
57 +sed 's/^/| /' conftest.$ac_ext >&5
59 +ac_cv_type_statfs64=no
61 +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
64 +echo "$as_me:$LINENO: result: $ac_cv_type_statfs64" >&5
65 +echo "${ECHO_T}$ac_cv_type_statfs64" >&6
66 +if test "$ac_cv_type_statfs64" = yes
69 +cat >>confdefs.h <<\_ACEOF
70 +#define HAVE_STATFS64 1
76 { echo "$as_me:$LINENO: checking return type of signal handlers" >&5
77 echo $ECHO_N "checking return type of signal handlers... $ECHO_C" >&6; }