[glibc] posix/tst-rfc3484: Fix compile failure linking to local __stat64

[Adhemerval Zanella <azanella@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a4efbf44757477717a907078c340386146c7623f

commit a4efbf44757477717a907078c340386146c7623f
Author: Stafford Horne <shorne@gmail.com>
Date:   Wed Feb 3 15:36:47 2021 -0300

     posix/tst-rfc3484: Fix compile failure linking to local __stat64
    
    After 04986243d1 ("Remove internal usage of extensible stat functions")
    linking the __stat64 symbol in getaddrinfo for this test fails with the
    below error:
    
        [...] or1k-smh-linux-gnu/bin/ld: [...]/posix/tst-rfc3484.o: in function `gaiconf_reload':
        [...]/sysdeps/posix/getaddrinfo.c:2136: undefined reference to `__stat64'
        collect2: error: ld returned 1 exit status
    
    This is because __stat64 is a local symbol, the test includes the
    getaddrinfo directly and fails to link against the local symbol.  Fix
    this by setting up an alias to the global stat64 symbol name like is
    done for other local symbol usage.
    
    Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

Diff:
---
 posix/tst-rfc3484-2.c | 1 +
 posix/tst-rfc3484-3.c | 1 +
 posix/tst-rfc3484.c   | 1 +
 3 files changed, 3 insertions(+)

diff --git a/posix/tst-rfc3484-2.c b/posix/tst-rfc3484-2.c
index 5f5ada9420..ce8ccd5f38 100644
--- a/posix/tst-rfc3484-2.c
+++ b/posix/tst-rfc3484-2.c
@@ -11,6 +11,7 @@
 #define __gethostbyaddr_r gethostbyaddr_r
 #define __gethostbyname2_r gethostbyname2_r
 #define __qsort_r qsort_r
+#define __stat64 stat64
 
 void
 attribute_hidden
diff --git a/posix/tst-rfc3484-3.c b/posix/tst-rfc3484-3.c
index d9ec5cc851..ecb163963f 100644
--- a/posix/tst-rfc3484-3.c
+++ b/posix/tst-rfc3484-3.c
@@ -11,6 +11,7 @@
 #define __gethostbyaddr_r gethostbyaddr_r
 #define __gethostbyname2_r gethostbyname2_r
 #define __qsort_r qsort_r
+#define __stat64 stat64
 
 void
 attribute_hidden
diff --git a/posix/tst-rfc3484.c b/posix/tst-rfc3484.c
index 97d065b6bf..3b2052eb54 100644
--- a/posix/tst-rfc3484.c
+++ b/posix/tst-rfc3484.c
@@ -11,6 +11,7 @@
 #define __gethostbyaddr_r gethostbyaddr_r
 #define __gethostbyname2_r gethostbyname2_r
 #define __qsort_r qsort_r
+#define __stat64 stat64
 
 void
 attribute_hidden