File nss-database-multiple-dfn.patch of Package glibc

2018-03-03  Andreas Schwab  <schwab@linux-m68k.org>

	[BZ #22918]
	* nss/nsswitch.h (DEFINE_DATABASE): Don't define __nss_*_database.
	* nss/nsswitch.c (DEFINE_DATABASE): Define __nss_*_database here.
	* nscd/gai.c (__nss_hosts_database): Readd definition.
	* posix/tst-rfc3484.c (__nss_hosts_database): Likewise.
	* posix/tst-rfc3484-3.c (__nss_hosts_database): Likewise.
	* posix/tst-rfc3484-2.c (__nss_hosts_database): Likewise.

Index: glibc-2.27/nscd/gai.c
===================================================================
--- glibc-2.27.orig/nscd/gai.c
+++ glibc-2.27/nscd/gai.c
@@ -45,3 +45,6 @@
 #ifdef HAVE_LIBIDN
 # include <libidn/idn-stub.c>
 #endif
+
+/* Some variables normally defined in libc.  */
+service_user *__nss_hosts_database attribute_hidden;
Index: glibc-2.27/nss/nsswitch.c
===================================================================
--- glibc-2.27.orig/nss/nsswitch.c
+++ glibc-2.27/nss/nsswitch.c
@@ -62,7 +62,7 @@ static service_library *nss_new_service
 
 /* Declare external database variables.  */
 #define DEFINE_DATABASE(name)						      \
-  extern service_user *__nss_##name##_database attribute_hidden;	      \
+  service_user *__nss_##name##_database attribute_hidden;		      \
   weak_extern (__nss_##name##_database)
 #include "databases.def"
 #undef DEFINE_DATABASE
Index: glibc-2.27/nss/nsswitch.h
===================================================================
--- glibc-2.27.orig/nss/nsswitch.h
+++ glibc-2.27/nss/nsswitch.h
@@ -226,10 +226,10 @@ libc_hidden_proto (__nss_hostname_digits
 #define MAX_NR_ADDRS    48
 
 /* Prototypes for __nss_*_lookup2 functions.  */
-#define DEFINE_DATABASE(arg)				    \
-  service_user *__nss_##arg##_database attribute_hidden;    \
-  int __nss_##arg##_lookup2 (service_user **, const char *, \
-			     const char *, void **);	    \
+#define DEFINE_DATABASE(arg)						      \
+  extern service_user *__nss_##arg##_database attribute_hidden;		      \
+  int __nss_##arg##_lookup2 (service_user **, const char *,		      \
+			     const char *, void **);			      \
   libc_hidden_proto (__nss_##arg##_lookup2)
 #include "databases.def"
 #undef DEFINE_DATABASE
Index: glibc-2.27/posix/tst-rfc3484-2.c
===================================================================
--- glibc-2.27.orig/posix/tst-rfc3484-2.c
+++ glibc-2.27/posix/tst-rfc3484-2.c
@@ -58,6 +58,7 @@ _res_hconf_init (void)
 #undef	USE_NSCD
 #include "../sysdeps/posix/getaddrinfo.c"
 
+service_user *__nss_hosts_database attribute_hidden;
 
 /* This is the beginning of the real test code.  The above defines
    (among other things) the function rfc3484_sort.  */
Index: glibc-2.27/posix/tst-rfc3484-3.c
===================================================================
--- glibc-2.27.orig/posix/tst-rfc3484-3.c
+++ glibc-2.27/posix/tst-rfc3484-3.c
@@ -58,6 +58,7 @@ _res_hconf_init (void)
 #undef	USE_NSCD
 #include "../sysdeps/posix/getaddrinfo.c"
 
+service_user *__nss_hosts_database attribute_hidden;
 
 /* This is the beginning of the real test code.  The above defines
    (among other things) the function rfc3484_sort.  */
Index: glibc-2.27/posix/tst-rfc3484.c
===================================================================
--- glibc-2.27.orig/posix/tst-rfc3484.c
+++ glibc-2.27/posix/tst-rfc3484.c
@@ -58,6 +58,7 @@ _res_hconf_init (void)
 #undef	USE_NSCD
 #include "../sysdeps/posix/getaddrinfo.c"
 
+service_user *__nss_hosts_database attribute_hidden;
 
 /* This is the beginning of the real test code.  The above defines
    (among other things) the function rfc3484_sort.  */
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